2 kW 3-phase motor control STEVAL
Contents
1. au 0 sa sta R E r TED ZTH sta E gt aa za ery Ftd oc eru bas X ata oze Bra pra x EA on TF SE 3 ta zi ea ca ra Ee min zn 28 qu acD a E SEH TEN 3d Ha Sea ero ES KE E E osu lt lt 3d zo SI N ve 9za en F_Ten Aen 70 etal A ved 62 ara sea PER a zou ep L J EZ Bey Ech Tt Ivi otu SS oi zwa 158 118 za Sttd s Sp omr a EN su za Sen sua a esa y seg Ee onra i ITM 139 3 eors tza soru era tra atta za va Ta crol vita tra J seo zea y 93 S aia era zit et t i reu gt 3 Z Sen zsa leen Cen DN Ex Ly 9a aay Stu San zen ace JI JI ken 29 0013 sey 1281 joey pase 1288 Pr gt 28 ES In Il leen 8 t92 22a SES E El EE 409 Feo I ena Se oso ava Zea rn SH 1 988 R ope Y Tey lt 10 ASS Bey S dl 58 EFE 693 eid g Selten Lan zeu 223 Zdl 25 Jesi Sau aquvog no 9 EE 3SYLIDA HSIH em Con sw Tos en 298 EZE DCD 104ss Bey ole Tia iSNINYOM ZASZOWHI WAALS 3S0d8Na NDILYNTYAJ 303 AINO 04404 DoclD18293 Rev 2 42 47 UM1036 Ordering information 9 10 10 1 Note Ordering information The evaluation board is available through the standard ordering system the ordering code2. Name Reference Description pinout Supply connector E 1 L phase Ji _3 2 N neutral 4 3 PE protected earth 4 PE protected earth Motor control connector 1 emergency stop 2 GND 3 PWM 1H 4 GND 5 PWM 1L 6 GND 7 PWM 2H 8 GND 9 PWM 2L 10 GND 11 PWM 3H 12 GND 1 2 13 PWM 3L 14 HV bus voltage J2 15 current phase A 16 GND 17 current phase B 18 GND 19 current phase C 20 GND 33 de 21 NTC bypass relay 22 GND 23 dissipative brake PWM 24 GND 25 V power 26 heatsink temperature 27 PFC sync 28 Vpp_m 29 PWM Veer 30 GND 31 measure phase A 32 GND 33 measure phase B 34 measure phase C Ve BEMF daughterboard connector D 1 phase A 2 phase B 3 3 phase C J3 4 bus voltage de 5 3 3 VDC 5 6 Vpp_micro 6 7 GND T 8 PWM VREF g A Motor connector J4 B A phase A c B phase B C phase C DoclD18293 Rev 2 d UM1036 Description of jumpers test pins and connectors Table 7 Connector pinout description continued Name Reference Description pinout Hall sensors encoder input connector 1 Hall sensor input 1 encoder A J5 1 Hall sensor input 2 encoder B E aT 1 Hall sensor input 3 encoder Z Toa Sa 4 5 VDC 5 GND Tachometer input connector for AC motor speed loop control J6 1 tachometer bias p p 2 tachometer input D
3. UM1036 Bill of materials Table 9 Bill of materials continued Qty Reference pes cei Package class Manufacturer 3 R1 R4 R7 100 kQ Resistor SMD 1206 Any 3 R53 R57 R61 100 kQ Resistor SMD 0805 1 Any 4 R2 R5 R40 R41 470 kQ Resistor SMD 1206 Any 1 R3 100 NTC resistor 10R through hole O 2 R6 R10 1200 Resistor SMD 0805 1 Any 2 R8 R111 7 5 KQ Resistor SMD 0805 1 Any 3 R9 R91 R106 51 kQ Resistor SMD 0805 1 Any 1 R11 13 KQ Resistor SMD 0805 1 Any 4 R12 R16 R31 R37 5 6 kQ Resistor SMD 0805 1 Any 1 R13 160 Q Resistor SMD 1206 Any R14 R36 R44 R79 R86 20 Ee KAA 1KQ Resistor SMD 0805 1 Any R80 R85 R87 R94 R97 7 ae e R28 R29 R50 Joere Resistor SMD 0805 1 Any 9 SEN GE GE GE amka Resistor SMD 0805 1 Any 0 R26 R43 N C Any 1 R30 100 Q Resistor SMD 0805 1 Any 8 Ge Ge Ee R84 8 2 KO Resistor SMD 0805 1 Any 4 R33 R49 R51 R114 15 KQ Resistor SMD 0805 1 Any 1 R34 6 8 KQ Resistor SMD 0805 1 Any 2 R35 R109 9100 Resistor SMD 0805 1 Any 2 R47 R96 220 Q Resistor SMD 0805 1 Any 1 R38 220 Resistor SMD 0805 1 Any 1 R39 68 kQ Resistor SMD 0805 1 Any 1 R42 560 Q Resistor SMD 0805 1 Any 4 R45 R108 R110 R117 2 2 KQ Resistor SMD 0805 1 Any 1 R115 4 3 KQ Resistor SMD 0805 1 Any 1 R46 220 kQ Resistor SMD 0805 1 Any 2 R48 R52 27 KQ Resistor SMD 0805 1 Any 5 R56 R60 R65 R116 R73 3 3 kQ Resistor SMD 0805 1 Any 1 R64 16 KQ Resisto
4. CTI UM1036 y life augmented User man ual 2 kW 3 phase motor control STEVAL IHMO28V2 evaluation board featuring the IGBT intelligent power module STGIPS20C60 Introduction This document describes the 2 kW 3 phase motor control evaluation board featuring the IGBT intelligent power module STGIPS20C60 The evaluation board is an AC DC inverter that generates a 3 phase waveform for driving 3 phase motors such as induction motors or permanent magnet synchronous motors PMSM up to maximal 2000 W with or without sensors The main device presented in this user manual is a universal fully evaluated and populated design consisting of a 3 phase inverter bridge based on the 600 V IGBT power module in the SDIP 25L package mounted on a heatsink The IGBT power module integrates all power IGBT switches with freewheeling diodes together with high voltage gate drivers Thanks to this integrated module the system has been specifically designed to achieve power inversion in a reliable and compact design Such integration saves PCB space occupation and assembly costs together with high reliability due to the design simplicity The board is designed to be compatible with single phase mains supplying from 90 VAC to 285 VAC or from 125 VDC up to 400 VDC for the DC voltage This document is associated with the release of the STEVAL IHMO028V2 evaluation board see Figure 1 Figure 1 STEVAL IHM028V2 November 2014 DoclD18293 Rev 2 1 47
5. lt eos ssedAq 91N R O 6a y eseyd A er Doa yu ai T peoq JajyBnep JN v gt Ge ASI ssed q usniu AN 9 eseydw C JOJ99UUOI JOJO N du 00 EX vo Ge jee 2 See ayelig SJempo Adans Vin em E oe E dd did oso Ha e 4 o o og A WMd SC H ell Y E wi A g lt ___ Aejar ssed q OLN dd A Pig SF 9 queno ZM EE Ste 27 vuanna ainyesodway 19H E A ebeyon sng _ gt ES 7 0 WMd 1eq ull YS E HS H H SAS AR Keier a de ES VA lt _ d01S WA N 9 3MzZzZ L dh 8729 34004 LA Adu 001 139 UND DCH AGS E 1NOA Nia T avsoWsZ1 en Jeoull A G cr AGL za 4JOJOSUUOD JOJO YOLOW oseuyd v y E g eseyd e seyd 9 y or yndjno Jojo 9 47 DoclD18293 Rev 2 UM1036 Board description Figure 5 STEVAL IHM028V2 schematic part 3 ecvLOonv yesq SJEMYOS A DA SL LGH T T y 1v899 C DA mm 60 SLT JS reg ei DT Dies vu Llera Ll oct 90 A ve A Joujuoo ayeig on Pia e 4 gt e OA 022 9vel ON ON SA y U 09S OA OLY ozr UA 89 vvel 27808 Ee Ee ova L ses a E UZZ OCH 10 UAL an aoe CSO9ENSEMO_LS Y ase m ES azssog N ia d 924 co AS8 an Ly pa SCH BEER org za E Ort L Eu zey B eeu X l Iareres usalb 931 A sn Jr el
6. 23 3 1 Hardware settings for six step block commutation current control in single shunt configuration 23 3 2 Hardware settings for FOC in three shunt configuration 24 3 3 Hardware settings for FOC in single shunt configuration 25 4 Testing of the evaluation board 27 5 Description of jumpers test pins and connectors 29 6 Connector placement 33 2 47 DoclD18293 Rev 2 ky UM1036 Contents 7 Bill of materialS 34 8 POB ay ENEE 39 9 Ordering information 43 10 Using STEVAL IHM028V2 with STM32 FOC firmware library 43 10 1 Environmental considerations 43 10 2 Hardware requirements 44 10 3 Software modifications 44 11 Conclusion 45 12 References 45 13 Revision history ista A ee e NEEN 46 ky DoclD18293 Rev 2 3 47 System introduction UM1036 1 1 1 2 4 47 System introduction Main characteristics The information listed below shows the converter specification data and the main parameters set for the STEVAL IHM028V2 evaluation board e Minimum input voltage 125 VDC or 90 VAC e Maximum input voltage 400 V
7. Voltage on the bus is sensed through a voltage divider net with resistors R40 R41 and R48 and is compared to the precise voltage reference U5 The brake dummy load is switched on when the voltage on the bus reaches approximately 435 VDC and is switched off when the voltage falls bellows 415 VDC This voltage level has been chosen to be fully compliant with the possible use of front end PFC stage The brake function can also be activated by the microcontroller through the J2 motor control connector PWM_Brake signal For this configuration the user should set the W2 jumper to position A The brake threshold levels can be modified by calculating R49 and R51 new values D13 red LED diode Brake indicates the acting brake switch Overcurrent protection Hardware overcurrent protection OCP is implemented on the board This feature takes advantage of STGIPS20C60 intelligent module where an internal comparator is implemented Thanks to the internal connection between the comparator output and shutdown block of the IPM the intervention time of overcurrent protection is extremely low ranging slightly above 200 ns Please see Figure 70 for details DoclD18293 Rev 2 15 47 Board description UM1036 16 47 Overcurrent protection acts as soon as the voltage on the CIN pin rises above the internal voltage reference typical value Veer yr is 0 53 V Considering the default value of the OCP shunt resistor it follows that the maximu
8. www st com Contents UM1036 Contents 1 System introduction 4 1 1 Main characteristics 4 1 2 Target application 4 13 Safety and operating instructions 5 1 3 1 General terms uni ia ated eae bead het Peau awe Hua ica 5 1 3 2 Eevaluation board intended use 5 1 3 3 Evaluation board installation 5 1 3 4 Electrical connections 6 2 Board description 7 2 1 System architecture 7 2 2 Board schemate NA III 8 2 3 Circuit description 14 2 3 1 Power Supply ENNEN EEN EEN AT RE a 14 2 3 2 InTUSA limitation AA De eae ed Hee Bead ace ade 15 2 3 3 Power block based on IGBT module 15 2 3 4 Brake function EE a miia eae Gs e Pes Wee eee eS 15 2 3 5 Overcurrent protection 15 2 3 6 Current sensing amplifying network cece eee 17 2 3 7 The tachometer and Hall encoder inputs 20 2 3 8 Temperature feedback and overtemperature protection OTP 20 2 3 9 Active heatsink Cooling 21 3 Hardware setting of the STEVAL IHM028V2
9. Figure 3 STEVAL IHM028V2 schematic part 1 OcrLONV ZN ASE AUOOL 20001 A9 Ap AS2 AN00L Ou 00L aWssLossAza DAYS E Wid VOOTLHLLS ezo zzo ZO GR ozo saj 9d pal aa HUG 21 iat D Rosti sa a ETS BLOF asnos anos Meg ASI 4 4 4 y ee L dWOD zemos pesmos ii 3u 0zz Ju 001 919 ON 14 dl ge z ueq y ulelq DA EL U OZL ech oly ada ueq ueq WA Lee aigzediA IL st It el zn gt IA sngt 8vLrNL CO HN oes 11 J aAUOD yong Av Av M y Lu dopo M La ai 12 Be LLO ll 69 ACL 4 E i AGL ojo Ad 4 L z YL Lagvees1 LN AG pe ees Jeoull A e av adn Lu 8 Jajqnop A o o SLM T A 3UuO0L A OGL 19 gi A0S2 A0S2 DA 00L ae T ebeyon sng C gt ES S19 Lx 30081 go WI wy oy 02y HEI A OLSEDADA G9 7 za Sy va CH 5 oso OGA Am AOSZ a eee i UNO moosi ZC oos wY 00 Se za au K Kee E Ir zu 9 zo Ly 19 a IC _ o aA ones ebeyoa snq 20 g H Vod eBpuq um ped ndul DoclD18293 Rev 2 8 47 Board description UM1036 Figure 4 STEVAL IHM028V2 schematic part 2 LEY LON ZA k DN OG DN OF 33189 17 oly Gly ae om Ud moja OT k t809 Y AC e L t Jop od A ro sng OA L 8 bly 9 eseyd ay L_ gt eseud Sr W
10. main blocks see Figure 2 Control block its main task is to accept user commands and motor drive configuration parameters It provides all digital signals to implement the proper motor driving strategy The STM3210B EVAL evaluation board based on the STM32 microcontroller can be used as the control block thanks to the motor control connector equipped on the STEVAL IHM028V2 Power block it is based on 3 phase inverter topology The heart of the power block is the STGIPS20C60 integrated intelligent power module which contains all the necessary active components Please refer to the STGIPS20C60 datasheet for more information Motor the STEVAL IHM028V2 evaluation board is able to properly drive any PMSM but the FOC itself is mostly conceived for sinusoidal shaped back EMF The evaluation board is also convenient for driving any 3 phase asynchronous motor Power supply block able to work from 90 VAC to 285 VAC or from 125 VDC to 400 VDC The power block is based on a buck converter with a VIPer26 controller Please refer to Section 3 to properly set the jumpers according to the required application Figure 2 Motor control system architecture Control block Power block MOTOR Power supply AM07426 Of the above motor control system architecture the STEVAL IHM028V2 includes the power supply and the power block hardware blocks DoclD18293 Rev 2 7 47 UM1036 Board description Board schematic 2 2
11. 47 Revision history UM1036 13 46 47 Revision history Table 10 Document revision history Date Revision Changes 13 Jan 2011 1 Initial release 13 Nov 2014 2 Add new reference product DoclD18293 Rev 2 2 UM1036 IMPORTANT NOTICE PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries ST reserve the right to make changes corrections enhancements modifications and improvements to ST products and or to this document at any time without notice Purchasers should obtain the latest relevant information on ST products before placing orders ST products are sold pursuant to ST s terms and conditions of sale in place at the time of order acknowledgement Purchasers are solely responsible for the choice selection and use of ST products and ST assumes no liability for application assistance or the design of Purchasers products No license express or implied to any intellectual property right is granted by ST herein Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product ST and the ST logo are trademarks of ST All other product or service names are the property of their respective owners Information in this document supersedes and replaces information previously supplied in any prior versions of this document 2014 STMicroelectronics All rights reserved 2 DoclD18293 R
12. J2 MLW34G MLW connector 34 pins ARK A J3 BL815G Pins RM 2 54 mm 12 pins from 15 pin list 1 1 J4 Connector 3P Connector RMS mm 3 pol Hartman male and female dd J5 Con 5mm 2P Connector RM 5 mm 2 pole and ARK 3P 3 pole screw 4 J6 Con 5 mm 2P Connector RM 5 mm 2 pole ARK screw 4 J7 Con 5 mm 2P Connector RM 5 mm 2 pole ARK screw Ly DoclD18293 Rev 2 37 47 Bill of materials UM1036 Table 9 Bill of materials continued Value generic Qty Reference part number Package class Manufacturer 1 LS1 Finder 4061 Relay 12 V 16 A 250 VAC Finder 1 FANI ci 2 941 PsHo2 03PG 2 Fi PA PZ1008 Fuse holder 10 x 38 2 pc in one board Fuse 16 A high P 16 A 120 kA 500 V 4 cur 10 x 38 150 150 mm of AL profile 8424 e mm Heatsink Heatsink 65 x 70 PADA Engineering AIREN red wings Fan 12 V 70 mm x 70 mm 1 Airen 70 x15mm 38 47 DoclD18293 Rev 2 er UM1036 PCB layout 8 PCB layout For this application a standard double layer coppered PCB with a 60 um copper thickness was selected The PCB material is FR 4 The dimensions of the board are e Length 195 mm e Width 175 mm e PCB thickness 1 55 mm Figure 17 Copper tracks top side ky DoclD18293 Rev 2 39 47 PCB layout UM1036 40 47 Figure 18 Copper tracks bottom side DoclD18293 Rev 2 PCB layout UM1036 Figure 19 Silk screen top
13. is STEVAL IHM028V2 The items delivered include the assembled application board board documentation PCB fabrication data such as gerber files assembly files pick and place and component documentation Using STEVAL IHM028V2 with STM32 FOC firmware library STM32 FOC firmware library UM1052 is a firmware library which allows performing of the FOC of a PMSM in configuration with and without sensors Environmental considerations Warning The STEVAL IHM028V2 evaluation board must only be used in a power laboratory The voltage used in the drive system presents a shock hazard The kit is not electrically isolated from the DC input This topology is very common in motor drives The microprocessor is grounded by the integrated ground of the DC bus The microprocessor and associated circuitry are hot and MUST be isolated from user controls and communication interfaces Warning All measuring equipment must be isolated from the main power supply before powering up the motor drive To use an oscilloscope with the kit it is safer to isolate the DC supply AND the oscilloscope This prevents a shock occurring as a result of touching any SINGLE point in the circuit but does NOT prevent shock when touching two or more points in the circuit An isolated AC power supply can be constructed using an isolation transformer and a variable transformer A schematic of this AC power supply can be found in the AN438 application note Although this app
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15. vJ ocr yndul aseug OLM D o NID N junys 1 yunys AS E gt o oo o as S 8M ZM gt aseyd MNIH MNI mi T m y M LOOSA 4d OL 4d 01 OEE MINO T 055 753 Lei 094 lt ZNIH OAL een iu AND a lt Hand E a a 7 A r lt T Ge ALOO8A Ti ant ON L gen A ALNO Gi I 8b UA OOL duren o DDA gt ASI LSY SR DI KN 5 D iL A 3401 ido OIE Sv Ft 954 UJA L SSY CC lt 1 HY WMd C4 i lt TY NMd DL Feu 001 yndul y aseud ESY 11 47 DoclD18293 Rev 2 UM1036 Board description Figure 7 STEVAL IHM028V2 schematic part 5 vevLONV ainjejadwaj 19H SS iS POL 4d 001 699 OW LS sors Ho CLAN SS SS ules lk H ules ELM LI eS UAE ZOLY GAGE LOLY roueg Gees et mt H DI mt ien 963 CL jueuno gt ua 6 KE v is 8 lt L lt a qn soy b66ASL D du OOL OL aa 28N v UA Z S UJ L voy SE ES eee ara wilarerive SES AS 4 dwe 91N E AESI Ee FE SE S99 1 Apr y I are ue Jayljdue ainyesodway L6H T IM ji AEEA g Bulsuas Juang A om een adzyl 3d 91 z90 199 DA Ik CH OA GE 063 68H ONS 3 mer 88H e Se OA L Jeu 9 queung E gt cc lt E A 984 ie S 7 Asa t n d d d oso Gd agn v ON og 30001099 3d p sd zy ve d DA ZB f 6S0 859 gt f 210 Wilsrerlva vey ze Cer ESO z8Y Ag L gt AC E Tei LL ONO 13 9
16. 3 2 Hardware settings for FOC in three shunt configuration To drive any motor the user must ensure that e The motor control evaluation board is driven by a control board which provides the six output signals required to drive the 3 phase power stage e The motor is connected to the J4 motor output connector e f using an encoder or Hall sensor connection it is connected to connector J5 e f using a tachometer connection it is connected to connector J6 e f using the brake control feature connect a dissipative power load to connector J7 Table 4 shows the jumper settings for any motors Please confirm that the evaluation board input voltage is in the range of 125 VDC to 400 VDC or 90 VAC to 285 VAC Table 4 Jumper settings for PMSM or generic AC motor FOC in three shunt Jumper Settings for FOC in three shunt A position for Vpp 3 3 V Wi B position for Vpp 5 V WA A position for software brake B position for disabling OCP Not present W3 Present supply J2 with Vpp max 50 mA Present for tachometer W4 Not present for tachometer encoder Present for Hall encoder W5 Not present for tachometer WA A position Vpp for Hall encoder B position 5 V for Hall encoder W7 Not present W8 Not present Wo Present W10 Present 24 47 DoclD18293 Rev 2 ky UM1036 Hardware setting of the STEVAL IHM028V2 Table 4 Jumper settings for PMSM or generic AC motor FOC in th
17. 7 Present W Present w9 Not present W10 Not present ky DoclD18293 Rev 2 25 47 Hardware setting of the STEVAL IHM028V2 UM1036 26 47 Table 5 Jumper settings for PMSM or generic AC motor FOC in single shunt Jumper Settings for FOC in single shunt W11 Present W12 Present W13 Present W14 Present Wig Present for voltage doubler max 145 VAC Not present for normal supply range DoclD18293 Rev 2 2 UM1036 Testing of the evaluation board 4 Testing of the evaluation board The overall test of the evaluation board was performed on a motor bench with two kinds of applied PMAC motors Test conditions are listed below Parameters for 1 test Motor parameters e Manufacturer Reel S r l e Type IB100 F e Nominal power 10 7 kW e 4 pole pairs e Ls 0 003465 H Rs 0 28 Q e Ke 84V e Nominal speed 3000 rom Test conditions e Supply voltage 325 VAC frequency 50 Hz e Testing output power 1 8 kW testing speed 1000 rpm e Temperature of ambient 22 C e Active fan cooling disabled plastic covers removed Parameters for 2 test Motor parameters e Manufacturer DOMEL e Type 748 3 292 e Nominal power 1 6 kW e 4 pole pairs e Ls 0 045 H Rs 1 03 Q e Ke 84V e Nominal speed 2250 rpm Test conditions e Supply voltage 325 VAC frequency 50 Hz e Testing output power 1 6 kW testing speed 2250 rpm e Ambient temperature 22 C e Active f
18. Buisuas zung OA L OA L 08H y auno C gt a T lt lt 413 64H v66ASL y ON L 8 8 om aadA ven ZER 910 Wilsrerlva AIS ASt d Lp AC E y Bulsuas Ian DoclD18293 Rev 2 12 47 Board description UM1036 Figure 8 STEVAL IHM028V2 schematic part 6 ScrLONV 9 Juano g Juano e j OZdl y Juano Oy lt 9 8ldl H O WMd AG lt 4 OLdl TO WMd Ager d vid HWaWMd joquos og ESA 2 4 TEMMA ebeyon sng CL S gt X old HVW WMd o eseyd W C gt K aa TY NMd g eseyd WU z i 941 2 eseud y seyd W C gt gy 98 eseyd ainjejadwa joy L gt zai V eseyd suid sot A DCL deen o UA OL OLN LLY AGe A ZLY cLO duet OLN 9JnjeJadula yUIS eaH 8VLZN 6ta KR Y L GZ 20809 ELO A Nui Au00UT lt 6dL Idi LNV4 Gdl dl AGI a Ld AC E J9 04 U09 UB y NE E du 001 029 ainjejadwa joy DDA asi J9 101Juo09 Ue y 5016 La 60143 Ilalevesl OLN c 8013 A 4d 001 gen RI zL DN 811 Sel 9 o O SET OA EV oli ll sie C Joy ell lt I ainjesadwaj OH ceZeSl 8 ven 08L ZOLY JoyeJedWOd 1334 1910 gt J 13 47 DoclD18293 Rev 2 Board description UM1036 2 3 2 3 1 Circuit description Power supply The power supply for the STEVAL IHM028V2 evaluation board is implemented as a wide range converter The range of the input voltage is fro
19. DC or 285 VAC e With applied input voltage doubler the range from 65 VAC to 145 VAC e Maximum output power for applied motor up to 2000 W e Regenerative brake control feature e Input inrush limitation with bypassing relay e 15 V auxiliary power supply based on a buck converter with VIPer 26 e Using IGBT intelligent power module STGIPS20C60 in SDIP 25L molded package e Fully populated board conception with test points and safety isolated plastic cover Motor control connector for interface with STM3210B EVAL board STM8 128 EVAL board and other ST motor control dedicated kits e Tachometer input e Hall encoder inputs e Overheating protection e Active fan cooling of heatsink with automatic temperature switch e Possibility to connect MB843 BLDC daughterboard for sensor less six step control e PCB type and size Material of PCB FR 4 Double sided layout Copper thickness 60 um Total dimensions of evaluation board 195 mm x 175 mm Target application e Power fans for HVAC application e Power tools e Industrial drives e High power industry pumps e Professional washing machines 2 DoclD18293 Rev 2 UM1036 System introduction 1 3 Safety and operating instructions 1 3 1 General terms Warning During assembly testing and normal operation the evaluation board poses several inherent hazards including bare wires moving or rotating parts and hot surfaces There is a danger of serious personal i
20. G SE Leinen sel xR R1 R2 3 Total gain of the circuit including the resistor divider is equal to DocID18293 Rev 2 17 47 Board description UM1036 Equation 4 ae Vsien _ Neen TOT Vin Rusx With the default values this gives e Veiag 1 57 V e Maximal voltage of Vsign 1 56 V e G 5 38 e Gror 3 90 e Maximum current amplifiable without distortion is 16 A Figure 11 Configuration for FOC 3 3 V R3 R77 R84 R92 A R1 R78 R85 R94 A lt R2 R82 Rus R89 R99 sense Ya TSV994 resistor A r1 R80 R87 R97 Ris sense R R81 R88 R101 r2 R83 R90 R100 resistor 1 GND VY AM07429 Table 1 shows the mentioned setting of gain jumpers for both FOC configurations Table 1 Gain settings for FOC current reading configuration Setting for FOC configuration Three shunt configuration Single shunt configuration W11 Present WI Present W12 Present W12 Present Setting of gain W13 Present W13 Present W14 Present W14 Present 18 47 Six step block commutation current reading configuration In the case of six step also called block commutation current control only two of the motor phases conduct current at the same time Therefore it is possible to use only one shunt resistor placed on the DC link to measure the motor phase current Furthermore as the current is always flowing in the same direction on the shu
21. K STM 1 U2 VIPer26LD PWM smart driver SO 16 STM 1 U3 L78MO5AB Linear regulator DPAK STM 1 U4 M74HC14R CMOS logic SO 14 STM 2 U5 U10 TS3431BILT Voltage reference SOT23 STM 1 U6 TS391ILT Op amp SOT23 5 STM 1 U7 STGIPS20C60 IPM IGBT module STM 36 47 DoclD18293 Rev 2 er UM1036 Bill of materials Table 9 Bill of materials continued Value generic Qty Reference part number Package class Manufacturer 1 U8 TSV994IDT Op amp SO 14 STM 1 U9 TS372ID Dual comparator SO 8 STM 0 TP1 TP3 TP5 N C TP2 TP4 TP6 TP7 TP8 TP9 TP10 TP11 TP12 PCB terminal 1 19 TP13 TP14 TP15 TP16 E Test pin TP17 TP18 TP19 TP20 TP21 TP22 Wi Jumper 2 54 Three pins of pin header jumper in position A wo Jumper 2 54 Three pins of pin header jumper in position A W3 Jumper 2 54 Two pins of pin header W4 Jumper 2 54 Two pins of pin header W5 Jumper 2 54 Two pins of pin header jumper We Jumper 2 54 Three pins of pin header jumper in position A W7 Jumper 2 54 N C W Jumper 2 54 N C wg Jumper 2 54 Soldered PCB pads together W10 Jumper 2 54 Soldered PCB pads together W11 Jumper 2 54 Two pins of pin header jumper W12 Jumper 2 54 Two pins of pin header jumper W13 Jumper 2 54 Two pins of pin header jumper W14 Jumper 2 54 Two pins of pin header jumper W15 Jumper 2 54 N C 1 1 J Connector 4P Connector RM Ree Hartman male and female 1
22. an cooling disabled plastic covers removed The STM3210B board was used as the control unit with STM32 FOC firmware library v2 0 loaded The flux weakening strategy with no sensors was chosen for testing Three shunt resistors current sensing technique was selected All related parameters of the motor were included in the source code via the FOCGUI 2 0 0 application The duration of the tests was 45 minutes with the mentioned continuous output power measured on the load of the motor testing stand For correct thermal measurements of the heatsink temperature the assembled fan was removed together with the plastic covers Measured parameters visible in Figure 15 were taken with the type IB100 F motor DoclD18293 Rev 2 27 47 Testing of the evaluation board UM1036 28 47 Figure 15 Current signals Tek nk E Auto M Pos 600 0 us CH1 Coupling BW Limit 100MHz Volts Div Loarse Probe 1004 4 Current Invert Off CH1 5 004 CH2 1 00 M 2 50ms CH1 Z 39 84 CH3 1 00 CH4 1 00 16 Sep 10 19 43 lt 10Hz 1 Ch1 Output phase current current probe on phase C Ch2 voltage on TP19 phase current A Ch3 voltage on TP21 phase current B Ch4 voltage on TP22 phase current C DoclD18293 Rev 2 d UM1036 Description of jumpers test pins and connectors 5 D Description of jumpers test pins and connectors Table 6 7 and 8 give a detailed description of the jumpers test pin
23. d sng A co 4 VAIG Ley 10 JU09 SALI ASL A A Wilsreriva Wisreriva 2 4u 001 el El SCH YY LOHTZAN dez oof ae zia lu 001 A den YI Kee aed DE 2 Jajewoyoe EH OM 11899 Y OL LL av ha PS UAOL 623 1v899 YyLOHTLON T e Seck op IN gt WO or so avn z Of de T SCH Eh 8 6 ME da 4d 0 4d or 4d 01 wW HLH u EE dl oe Se Zeil Leo dem arn bp ou SA iiey 4apoouy SE OILY 2 E S ONS a eseyd y zc t SZA UPLOHPZIN AGI EE asp wa o Josues Jejauoyode Ee CH S SCH y eseyd W SR za Joiauoungl YA v aseyd y C gt O m 111809 WA Ly v E WILH V LH SM Sol FEH YPLOHPZW WE du 001 OA LY OA LY OA Lp OILY e g 629 Sal deu zu A9 UbLOHPIN oso Ha ven Japoous WIEL DoclD18293 Rev 2 10 47 sng A4 N NIH ANA UM1036 N LOOSA nino SAN SIN IN coy Zn jnpow Wdl ML D ML op NEEE 4 E ETYLOWY CZ o Ke D A E H dose L p LSD G _ a asi gt r lt 015 Wi DA OL _ A A Dr GND 13 GND 23 GND 3 om On oo US0 0 ON EE set SLY K i ELY j T A tz 95 T T 2 Sa gt i g d f 4d ot 4d 01 DA Ee E SI s00 gt a ge U S0 0 NOE We sel r i soy 994 3 ge oO lt HD WMd El ua DH a DH abs NEEE a SE ge o c 7 8 Ob Zou 3 junys 1 WEE j O9DOZSdI LS
24. e on the main filtering capacitors is sensed with the voltage divider built around R2 R5 and R8 and is fed into the dedicated control unit through the J2 connector The proper voltage partitioning for applied resistor values is 0 0075 The presence of 15 VDC on the board is indicated with the D5 green LED Power ON Figure 9 describes the power supply section with a simplified block diagram Figure 9 Power supply block diagram INPUT 5 5 o BUS VDC o voc voc DC BUS MAX 450 VDC Linear regulator MIN MAX 90 VAC 285 VAC L78M05 125 VDC 400 VDC Bridge Buck converter Linear regulator VIPer26LD LF33 rectifier W15 Voltage doubler AM07427 14 47 DoclD18293 Rev 2 ky UM1036 Board description 2 3 2 2 3 3 2 3 4 2 3 5 Inrush limitation The input stage of the evaluation board is provided with an NTC resistor to eliminate input inrush current peak during the charging of the bulk capacitors To achieve a higher efficiency of the inverter it is possible to bypass the NTC after the start up phase The NTC bypass signal is provided from the MCU board through the J2 connector The yellow D10 LED diode Current limiter is turned off when the inrush NTC is bypassed A basic EMI filter based on X2 and Y2 capacitors was implemented on the board The EMI filter is not able to absorb EMI distortion coming from the inverter for all ranges of the appl
25. ev 2 47 47
26. he 3 phase power stage e The motor is connected to the J4 motor output connector e f using an encoder or Hall sensor connection it is connected to connector J5 e f using a tachometer connection it is connected to connector J6 e f using the brake control feature connect a dissipative power load to connector J7 Table 3 shows the jumper settings for any motors Please confirm that the evaluation board input voltage is in the range of 125 VDC to 400 VDC or 90 VAC to 285 VAC Table 3 Jumper settings for PMSM or generic AC motor six step Jumper Seitings for six step current control A position for Vpp 3 3 V W1 B position for Vpp 5 V WA A position for software brake B position for disabling OCP Not present W3 Present supply J2 with Vpp max 50 mA Present for tachometer WA Not present for Hall encoder Present for Hall encoder W5 Not present for tachometer wes A position Vpp for Hall encoder B position 5 V for Hall encoder W7 Present W8 Present w9 Not present W10 Not present DocID18293 Rev 2 23 47 Hardware setting of the STEVAL IHM028V2 UM1036 Table 3 Jumper settings for PMSM or generic AC motor six step Jumper Settings for six step current control continued W11 Not present W12 Not present wis Notpresett J W14 Not present ane Present for voltage doubler max 145 VAC Not present for normal supply range
27. ications The final EMI filter must be designed according to the motor and the design of the related EMI filter is up to the user according to the chosen motor and final target application The heatsink itself is connected to the earth pin in the J1 connector It is recommended to connect the heatsink to a negative voltage potential common ground when a DC voltage is used to supply the evaluation board Power block based on IGBT module The IGBT module STGIPS20C60 consists of high rugged IGBT power switches and three smart drivers STGIPS20C60 is provided with advanced gate smart drivers many features are available such as integrated comparators for overcurrent or short circuit protection and the SMART SHUTDOWN function Please refer to the STGIPS20C60 datasheet for more information Brake function A hardware brake feature is implemented on the STEVAL IHM028V2 evaluationevaluation board This feature connects the external resistive load applied to the J7 connector to the main supply bus to eliminate overvoltage generated while the motor acts as a generator This connected load must be able to dissipate all motor generated energy Almost any kind of high power resistor which may be used as dissipative load also has relative high parasitic inductance Due to such inductance it is important to take care not to damage the brake Q8 IGBT switch with a freewheeling diode applied directly to the terminals of the dissipative power resistor used
28. issipative brake J7 una 1 open collector 4 2 2 bus voltage Table 8 Testing pins description Number Description TP1 Output phase A TP2 Heatsink temperature TP3 Output phase B TP4 Sensed encoder Hall signal H1 A TP5 Output phase C TP6 Sensed encoder Hall signal H2 B TP7 PWM phase A low side TP8 Sensed encoder Hall signal H3 Z TP9 PWM phase A high side TP10 Voltage of the bus TP11 PWM phase B low side TP12 Brake flag when GND brake switch activated TP13 PWM phase B high side TP14 3 3 VDC TP15 PWM phase C low side TP16 15 VDC TP17 PWM phase C high side TP18 2 5 VDC reference voltage TP19 Current in phase A TP20 GND D DoclD18293 Rev 2 31 47 Description of jumpers test pins and connectors UM1036 32 47 Table 8 Testing pins description TP21 TP22 Number Current in phase B Current in phase C Description DoclD18293 Rev 2 2 UM1036 Connector placement 6 q Connector placement A basic description of the placement of all connectors on the board is visible in Figure 16 Figure 16 STEVAL IHM028V2 connector placement a D J4 J7 Ji J5 J6 DoclD18293 Rev 2 33 47 Bill of materials UM1036 7 Bill of materials A list of components used to build the evaluation board is shown in Table 9 The majority of
29. lication note was written for a TRIAC the isolation constraints still apply for switching semiconductor devices such as IGBT or MOSFET Isolating the application rather than the oscilloscope is highly recommended in any case DoclD18293 Rev 2 43 47 Using STEVAL IHM028V2 with STM32 FOC firmware library UM1036 10 2 10 3 44 47 Hardware requirements To run the STEVAL IHM028V2 together with the STM32 FOC firmware library the following is required The board STEVAL IHM028V2 High voltage insulated AC power supply up to 230 VAC J Link programmer ST Link not included in the package J Link insulating board not included in the package 3 phase brushless motor with permanent magnet rotor not included in the package Insulated oscilloscope as required Insulated multimeter as required Software modifications The most convenient way to edit the parameters header file is through the use of the ST MC Workbench PC GUI configuration tool for the STM32 PMSM FOC SDK motor control firmware library d DoclD18293 Rev 2 UM1036 Conclusion 11 Conclusion This document describes the 2 kW 3 phase motor control STEVAL IHM028V2 evaluation board based on IPM as a universal fully evaluated and adaptable motor control platform 12 References STGIPS20C60 datasheet ViPer26 datasheet STGW35NB60SD datasheet UMO379 user manual UMO580 user manual UMO723 user manual UMO900 user manual UE ky DoclD18293 Rev 2 45
30. m 90 VAC or 125 VDC up to 285 VAC or 400 VDC This range allows the evaluation board to be used in direct connection with various single phases as well as the PFC input stage If the input AC voltage does not surpass 145 VAC it is possible to apply the input voltage doubler this is done by shorting the W15 jumper This configuration almost doubles the input AC voltage to a standard level and allows to evaluate the motor control application with a low level of input AC voltage The auxiliary power supply for all active components on the evaluation board is implemented as a buck converter based on U2 VIPer26L which works with a fixed frequency of 60 kHz The output voltage of the converter is 15 VDC Voltage is fed into the intelligent power module IPM as supply voltage as well as into linear regulators LF33ABDT and L78MO5AB Linear regulators provide 3 3 VDC and 5 VDC for supplying operational amplifiers and further related parts placed on the evaluation board The selection of supply voltage for hardware peripherals placed on the board is done with jumper W1 In the A position the supply voltage selected is 3 3 V and in the B position it is 5 V Thanks to jumper W3 it is possible to supply the connected MCU driving board with related supply voltage Maximal consumptive current of the MCU unit must not surpass 50 mA Please refer to the VIPer26LD datasheet for more information Information regarding the value of the supply bus voltag
31. m allowed current is equal to Equation 1 0 53 R1 x R2 R2xR3 R1 x R3 3 3 x R1 x R2 shunt MAX REE o With the default values this gives Ishunt_MAx 20 A Figure 10 Overcurrent protection 3 3 V AAA R1 R72 Ris R2 R73 sense resistor STGIPS20K60 GND AM07428 Overcurrent protection can be disabled if the W2 jumper is set to the B position This may be necessary and is often useful when the user decides to make the brake operate by turning on the three low side switches In fact if the motor acts as a generator it is necessary to protect the hardware preventing the bus voltage from exceeding a safety threshold In addition to dissipating the motor energy on a brake resistor it s possible to short the motor phases preventing the motor current from flowing through the bulk capacitors Please note that if the OCP is disabled the evaluationevaluation board is not protected against any overcurrent event d DoclD18293 Rev 2 UM1036 Board description 2 3 6 Current sensing amplifying network The STEVAL IHM028V2 motor control evaluation board can be configured to run in various current reading configuration modes e Three shunt configuration suitable for field oriented control FOC e Single shunt configuration suitable for FOC in a single shunt configuration e Single shunt six step configuration suitable for scalar control Configuration
32. njury and damage to property if the kit or components are improperly used or installed incorrectly The kit is not electrically isolated from the AC DC input The evaluation board is directly linked to the mains voltage No insulation is ensured between the accessible parts and the high voltage All measuring equipment must be isolated from the mains before powering the board When using an oscilloscope with the demo it must be isolated from the AC line This prevents shock from occurring as a result of touching any single point in the circuit but does NOT prevent shock when touching two or more points in the circuit Do not touch the evaluation board after disconnection from the voltage supply several parts and power terminals which contain energized capacitors must be allowed to discharge All operations involving transportation installation and use as well as maintenance are to be carried out by skilled technical personnel national accident prevention rules must be observed For the purpose of these basic safety instructions skilled technical personnel are considered as suitably qualified people who are familiar with the installation use and maintenance of power electronic systems 1 3 2 Eevaluation board intended use The STEVAL IHM028V2 evaluation board is designed for evaluation purposes only and must not be used in final applications The technical data as well as information concerning the power supply conditions must o
33. nly be taken from the relevant documentation and must be strictly observed 1 3 3 Evaluation board installation The installation and cooling of the evaluation board must be done in accordance with the specifications and the targeted application evaluation e The motor drive converters are protected against excessive strain In particular no components are to be bent or isolating distances altered during the course of transportation or handling e No contact must be made with other electronic components and contacts e The boards contain electrostatically sensitive components that are prone to damage through improper use Electrical components must not be mechanically damaged or destroyed ky DoclD18293 Rev 2 5 47 System introduction UM1036 1 3 4 6 47 Electrical connections Applicable national accident prevention rules must be followed when working on the main power supply The electrical installation must be carried out in accordance with the appropriate requirements A system architecture which supplies power to the evaluation board must be equipped with additional control and protective devices in accordance with the applicable safety requirements e g compliance with technical equipment and accident prevention rules d DoclD18293 Rev 2 UM1036 Board description 2 2 1 Board description System architecture A generic motor control system can be basically schematized as the arrangement of four
34. nt resistor only positive current must be measured and in this case the amplifying network needs to be properly designed The details of single shunt current sensing reading configuration are shown in Figure 12 In this configuration the current sampling is done only when the value on the shunt resistor is positive Only the positive value read on the shunt resistor allows the setting of a higher gain for the op amp than the one set in three shunt reading mode DoclD18293 Rev 2 ky UM1036 Board description The op amp is used in follower mode with gain of the op amp set by resistors Equation 5 r1 Rig xr2 ri R g r2 Hir r G It is possible to calculate the voltage on the op amp output OP OUT Vout as the sum of a bias Vous and a signal Vs gn component equal to Equation 6 Vout Vsian Varias V xG a aa xR3 R1 R2 R 1xR Vsicn 7 7 xG tata Total gain of the circuit with the resistor divider is equal to Equation 7 G n Vsian Vsian TOT Vn Rug With the default values this gives e Vaiag 0 38 V e Maximal voltage of Vsign 2 76 V e G 8 02 e Grotz 6 90 e Maximum current amplifiable without distortion is 16 A DoclD18293 Rev 2 19 47 Board description UM1036 2 3 7 2 3 8 20 47 Figure 12 Six step current sensing configuration 3 3 V R3 R91 R92 R1 R94 lt R2 Rus R99 R105 sense Ya TSV994 resist
35. or ve r1 R97 Ris sense R R101 R102 r2 R100 R106 resistor C E GND AM07430 Table 2 shows the mentioned setting of gain jumpers for this configuration Table 2 Gain settings for six step current reading configuration Setting for six step configuration Single shunt configuration Wii Not present W12 Not present Setting of gain W13 Not present W14 Not present The tachometer and Hall encoder inputs Both the tachometer and Hall encoder inputs have been implemented on the board When using a Hall or encoder sensor the W5 jumper must be connected and the W4 jumper disconnected The W6 jumper set to position A allows to supply any connected Hall sensor with the same supply voltage as other hardware peripherals 3 3 VDC or 5 VDC depending on the W1 jumper Setting the W6 jumper to position B supplies the Hall sensor directly with 5 VDC which is the most common voltage for a Hall sensor The U4 Hex Schmitt inverter is used as the voltage level shifter for connected Hall sensors If using a tachometer jumper W5 must be disconnected and jumper W4 connected This type of adjustable feature allows the testing and evaluating of motors with a wide spectrum of various sensors Temperature feedback and overtemperature protection OTP Hardware overtemperature protection is implemented on the STEVAL IHM028V2 evaluation board This feature fully protects the IPM module against damage when the temperature on the j
36. r SMD 0805 1 Any er DoclD18293 Rev 2 35 47 Bill of materials UM1036 Table 9 Bill of materials continued Qty Reference Value Generic Package class Manufacturer part number R66 R67 R68 R69 R70 o 8 R71 R74 R75 0 05 Q Resistor SMD 2512 1 2 W Welwyn 6 a ABSURDO ROA RDA 3 9kQ Resistor SMD 0805 1 Any 2 R102 R105 3kQ Resistor SMD 0805 1 Any 1 R104 2 7kQ Resistor SMD 0805 1 Any 1 R107 180 Q Resistor SMD 0805 1 Any 1 R112 1 2 kQ Resistor SMD 0805 1 Any 1 R113 120 kQ Resistor SMD 0805 1 Any 1 R118 1 8 KQ Resistor SMD 0805 1 Any 4 D1 GBPC3510W Diode bridge 28 5 x 28 5 x 7 5 Any wire legs 35 A D2 D8 D11 D12 D15 D16 8 D17 D18 BAT48JFILM Diode SMD STM 3 D3 D9 D19 1N4148 Diode SMD MINI MELF Any 2 D4 D6 STTH1LOGA Diode SMD SMA STM 1 D13 LED Red LED 3 mm 2 mA universal Any 1 D7 BZV55C18SMD Zener diode 18 V MINI MELF Any 1 D10 LED yellow LED 3 mm 2 mA universal Any 1 D5 LED green LED 3 mm 2 mA universal Any 1 D14 BZX84B13V Zener diode SOT23 13 V 2 Any Q1 Q2 Q3 Q4 Q5 Q7 Q9 10 Q10 Q11 Q12 BC847A NPN transistor SOT23 Any 1 Q6 BC857B PNP transistor SOT23 Any 1 Q8 STGWS35NB60SD TO 247 STM PNP transistor 45 V 0 5 A 1 Q13 BC807 25 SMD SOT23 FAIRCHILD 1 L1 330 uH Inductive choke RM 5 mm Coilcraft 1 L2 1 5 mH SMD choke 1 5 mH 1 5 A Coilcraft 1 U1 LF33ABDT TR Linear regulator DPA
37. ree shunt Jumper Settings for FOC in three shunt W11 Present W12 Present W13 Present W14 Present wis Present for voltage doubler max 145 VAC Not present for normal supply range 3 3 Hardware settings for FOC in single shunt configuration To drive any motor the user must ensure that e The motor control evaluation board is driven by a control board which provides the six output signals required to drive the 3 phase power stage e The motor is connected to the J4 motor output connector e f using an encoder or Hall sensor connection it is connected to connector J5 e f using a tachometer connection it is connected to connector J6 e f using the brake control feature connect a dissipative power load to connector J7 Table 5 shows the jumper settings for any motors Please confirm that the evaluation board input voltage is in the range of 125 VDC to 400 VDC or 90 VAC to 285 VAC Table 5 Jumper settings for PMSM or generic AC motor FOC in single shunt Jumper Settings for FOC in single shunt A position for Vpp 3 3 V Wi B position for Vpp 5 V wis A position for software brake B position for disabling OCP Not present W3 Present supply J2 with Vpp max 50 mA Present for tachometer W4 Not present for tachometer encoder Present for Hall encoder W5 Not present for tachometer WA A position Vpp for Hall encoder B position 5 V for Hall encoder W
38. resistance of the heatsink Rth C W 2 0 1 8 1 6 1 4 1 2 1 0 0 8 0 6 0 4 0 2 0 0 0 10 20 30 40 50 60 70 80 Rip for related dissipated power W AMO07431 DoclD18293 Rev 2 21 47 Board description UM1036 Figure 14 Thermal resistance of the heatsink with continuous fan cooling Rth CC W 0 40 0 35 0 30 0 25 0 20 0 15 0 10 0 05 0 00 0 10 20 30 40 50 60 70 80 Rip for related dissipated power W AM07432 d 22 47 DoclD18293 Rev 2 UM1036 Hardware setting of the STEVAL IHM028V2 3 3 1 Hardware setting of the STEVAL IHM028V2 The STEVAL IHM028V2 evaluation board can be driven through the J2 motor connector by various STMicroelectronics MCU control units which feature a unified 34 pin motor connector The evaluation board is suitable for field oriented control as well as for tachometer or Hall sensor closed loop control The STEVAL IHM028V2 evaluation board ideally fits with the STM3210B EVAL board based on the STM32 MCU family as the control unit for FOC driving algorithms Hardware settings for six step block commutation current control in single shunt configuration To drive any motor the user must ensure that e The motor control evaluation board is driven by a control board which provides the six output signals required to drive t
39. s and the pinout of the connectors used Table 6 Jumper description Jumper Selection Description wA A position Vop 3 3 V B position Von 5 V A position Software brake applied Ke B position Disabling of OCP Present Supplying of MCU unit with Vpp K Not present MCU is supplied separately Present Tachometer connected ES Not present Hall or encoder connected Present Hall or encoder connected Hi Not present Tachometer connected A position A position Vpp for Hall encoder W B position B position 5 V for Hall encoder Present Any single shunt configuration ii Not present Any three shunt configuration Present Any single shunt configuration me Not present Any three shunt configuration Present Any three shunt configuration WA Not present Any single shunt configuration Present Any three shunt configuration Ke Not present Any single shunt configuration Present Gain for any FOC We Not present Gain for six step control Present Gain for any FOC W12 Not present Gain for six step control was Present Gain for any FOC Not present Gain for six step control WA Present Gain for any FOC Not present Gain for six step control Present Voltage doubler applied max 145 VAC oe Not present Voltage doubler disabled DoclD18293 Rev 2 29 47 Description of jumpers test pins and connectors UM1036 30 47 Table 7 Connector pinout description
40. the active components used are available from STMicroelectronics Table 9 Bill of materials Qty Reference Value generic Package class Manufacturer part number Murata 2 C1 C6 4 7 nF Y2 Y2 safety CAP 4n7 Manufacturing Co Ltd EPCOS 4 C2 C3 C4 C75 1500 uF 250 V Elyt 35 x 50 B43540E2158M000 EPCOS 1 C5 150 nF X2 X2 cap 6 x 15 x 26 5 B32923C3154K 2 C7 C72 10 nF Capacitor SMD 0805 Any C8 C9 C11 C12 C14 C19 C22 C23 C24 C25 C26 23 C27 C29 C30 C34 C35 100 nF Capacitor SMD 0805 Any C36 C38 C41 C64 C66 C70 C73 2 C10 C13 47 uF IAM Elyt capacitor SMD 4 4 Any 2 C28 C65 22 uF 6 3 V Elyt capacitor SMD 4 4 Any 0 C15 N C 1 C16 220 nF Capacitor SMD 0805 Any 1 C17 3 3 uF 450 V Elyt capacitor 10x20 Any 1 C18 1 uF 50V Elyt capacitor SMD 4 4 Any 1 C20 100 uF 25 V Elyt capacitor SMD 8 8 Any 2 C21 C40 4 7 uF 35 V Elyt capacitor SMD 4 4 Any C31 C32 C33 C44 C45 9 C51 C52 C54 C55 10 pF Capacitor SMD 0805 Any 2 C37 C56 2 2 nF Capacitor SMD 0805 Any 1 C39 470 pF Capacitor SMD 0805 Any 1 C42 4 7 nF Capacitor SMD 0805 Any 5 C43 C60 C63 C69 C74 100 pF Capacitor SMD 0805 Any 6 Ge EE 1 uF Capacitor SMD 1206 50 V AVX 2 C57 C71 330 pF Capacitor SMD 0805 Any 6 E G93 CG1 C62 C67 47 pF Capacitor SMD 0805 Any EPCOS B57703M 1 RT1 10 kQ NTC 10 kQ handle under screw 103G 40 34 47 DoclD18293 Rev 2 ky
41. unction on the IPM surpasses a defined value The temperature is sensed through an NTC resistor RT1 The measured signal is amplified with an operational amplifier and then fed through the J2 motor connector to the MCU control unit to be read with an A D converter The signal is also fed to the U9A comparator where it is compared with a 2 5 V reference voltage The precision reference U10 TS3431 provides this 2 5 V reference DoclD18293 Rev 2 ky UM1036 Board description 2 3 9 voltage The output signal of the comparator is fed into the IPM to stop the commutation of the connected motor as well as into the MCU control unit through the J2 connector With the value of the used resistor networks and applied NTC resistor the shutdown temperature of the heatsink is somewhere between 85 C and 90 C Active heatsink cooling For better thermal transfer of heat from the heatsink active fan cooling is implemented on the board The aluminum profile used is type 8424 from PADA Engineering The temperature is sensed with the NTC resistor and compared with a reference voltage in comparator U9B The fan is switched on automatically when temperature of the heatsink reaches approximately 40 C and is switched off when temperature of the heatsink falls to 35 C The thermal resistance of the heatsink when the fan is not activated is visible in Figure 13 the thermal resistance with active fan cooling is visible in Figure 14 Figure 13 Thermal
42. with a shunt resistor where voltage amplified with an operational amplifier is sensed was chosen as current sensing networks Single shunt configuration requires a single op amp three shunt configuration requires three op amps For compatibility purposes one of them is common to both basic configurations The configuration jumpers W11 W12 W13 and W14 allow to set the common op amp to achieve compatibility between single shunt six step configuration Suitable for scalar control and three shunt or single shunt FOC current reading configuration The operational amplifier TSV994 used on amplifying networks has a 20 MHz gain bandwidth and operates with just a single positive supply of 5 V Three shunt FOC or single shunt FOC current reading configuration Details of the FOC current sensing reading configuration are shown in Figure 11 In this configuration the alternating signal on the shunt resistor with positive and negative values must be converted to be compatible with the single positive input of the microcontroller A D converter used to read the current value The op amp is used in symmetrical follower mode its gain is set by resistors r and R Equation 2 ii r1 R 5 xr2 ri R g r2 Hir r G It is possible to calculate the voltage on the output of the op amp OP OUT Mou as a sum of a bias Vous and a signal Mac component equal to Equation 3 Vout Vsian Vias 3 3 V OGG SS E xRS R1 R2 R3 V Sa ai x
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