Home

Specifications

1. 1 6 4 1 Pop less click less start up and shutdown 6 4 2 Overcurrent protection 6 4 3 Important notice 7 5 Wiring diagram and povvering up 7 6 Adding external features 8 6 1 Electronic enabling disabling of the amplifier 8 6 2 Short circuit and overcurrent protection 9 6 3 Sonic performance versus Efficiency trade off 10 7 Legal information 11 7 1 ceses cede seeutsauwee 11 7 2 Disclaimers nn tend Bs od B 11 7 3 Patents naana Sak oa BB R eee es 11 7 4 Trademarks 11 8 Contents aba Urala 12 PHILIPS UM10155 Discrete Class D High Power Audio Amplifier Please be aware that important notices concerning this document and the product s described herein have been included in section Legal information Koninklijke Philips Electronics N V 2006 All rights reserved For more information please visit http www semiconductors philips com For sales office addresses email to sales addresses www semiconductors philips com Date of release 5 September 2006 Document identifier UM10155 2 HandsOn Technology Low Cost 8051uC Starter Ki Development Board HT MC 02 HT MC 02 is an ideal platform for small to medium scale embedded systems development and quick 8051 embedded design prototyping
2. 02 can be used as Stand alone 8051uC Flash programmer or as a development prototyping and educational platform WOSDUEH M R m O Pals 43 uz Main Features e 8051 Central Processing Unit e On chip Flash Program Memory with In System Programming ISP and In Application Programming IAP capability e Boot ROM contains low level Flash programming routines for downloading code via the RS2382 e Flash memory reliably stores program code even after 10 000 erase and program cycles 10 year minimum data retention e Programmable security for the code in the Flash The security feature protects against software piracy and prevents the contents of the Flash from being read 4 level priority interrupt amp 7 interrupt sources 32 general purpose I O pins connected to 10pins header connectors for easy I O pins access Full duplex enhanced UART Framing error detection Automatic address recognition Programmable Counter Array PCA amp Pulse Width Modulation PWM Three 16 bits timer event counters AC DC 9 12V power supply easily available from wall socket power adapter On board stabilized 5Vdc for other external interface circuit power supply Included 8x LEDs and pushbuittons test board free with HT MC 02 while stock last for fast simple code testing Industrial popular window Keil C compiler and assembler included Eval version e Free Flash Magic Windows software for easy
3. Table 2 Specifications Symbol Parameter Conditions Value Vp supply voltage equal positive and negative 30 V to 45 V supply voltages PL output power Vp 145 V RL 4Q 200 W RMS appropriate heatsink needed T efficiency 100 W R 4 92 96 THD N total harmonic P 10 W frequency range lt 0 03 distortion plus noise from 20 Hz to 20 kHz S N signal to noise ratio gt 120 dB PVVM PVVM frequency idle 400 kHz Variset offset voltage DC value lt 50 mV 4 1 Pop less click less start up and shutdown A provision has been added to the circuit to provide pop less click less start up and shutdown To make use of the start up facility make sure that the supply power pins J5 and J9 is applied prior to enabling the amplifier connecting J3 to J4 To benefit from the pop less shutdown feature disable the amplifier disconnect J3 and J4 prior to removing the supply power 4 2 Overcurrent protection A provision has been added to the circuit to monitor the current flowing through the Power MOSFETs Q13 and Q14 The voltage appearing between pins J5 and J6 is proportional to the current in MOSFET Q14 ratio 50 mV A and the voltage between J8 and J9 is proportional to the current in MOSFET Q13 ratio 50 mV A With the use of an external UM10155 2 Koninklijke Philips Electronics N V 2006 All rights reserved User manual Rev 02 5 September 2006 6 of 12 Philips Semiconductors UM1 01 55 Discret
4. weibeip na q Hidury olpny ubiH 4 5510 3219S1q SIOJONPUODIWAIS sdillud SSLOLINN Philips Semiconductors Table 1 Connections UM10155 Discrete Class D High Power Audio Amplifier Connector Function Remarks J1 audio in signal use together with J2 J2 audio in ground use together with J1 J3 amplifier enable when connected to ground J4 the amplifier is enabled J4 ground use together with J3 J5 positive supply voltage 30 V to 45 V no need for a stabilized power supply J6 positive current sense can optionally be used in an overcurrent protection scheme J7 power supply ground OV J8 negative current sense can optionally be used in an overcurrent protection scheme J9 negative supply voltage 30 V to 45 V no need for a stabilized power supply J10 loudspeaker output use together with J11 J11 loudspeaker ground use together with J10 3 Printed circuit board layout 001aaf150 Fig 3 Top copper layout UM10155_2 User manual 001aaf151 Fig 4 Bottom copper layout Rev 02 5 September 2006 Koninklijke Philips Electronics N V 2006 All rights reserved 5 of 12 Philips Semiconductors UM1 01 55 Discrete Class D High Power Audio Amplifier PHILIPS class D amp version 1 00 Alla l 4 international 14 patent VVO 03 090343 001aaf152 001aaf153 Fig 5 Component layout Fig 6 Top silk screen 4 Specifications
5. program code down loading PLEASE READ HT MC 02 GETTING STARTED MANUAL BEFORE OPERATE THIS BOARD INSTALL ACROBAT READER AcrobatReader705 Application TO OPEN AND PRINT ALL DOCUMENTS http vvvvv handsontec com Creativity 267 TOMOTTOW 5 HEMET HIVIN HandsOn Technology is a manufacturer of high quality educational and professional electronics kits and modules uController developmentrevaluation boards Inside you will find Electronic Kits and fully assembled and tested Modules for all skill levels Please check back with us regularly as we will be adding many new kits and products to the site in the near future Do you want to stay up to date with electronics and computer technology Always looking for useful hints tips and interesting offers Inspiration and goals y HandsOn Technology provides a multimedia and interactive platform for everyone interested in electronics From beginner to diehard from student to lecturer Information education inspiration and entertainment Analog and digital practical and 48 S theoretical software and hardware 3 x HandsOn Technology provides Designs ideas and solutions for today s engineers and electronics hobbyists Creativity for tomorrow s better living HandsOn Technology believes everyone should have the tools hardware and resources to play with cool electronic gadgetry HandsOn Technology s goal is to get our hands
6. 1 and IC2 produce a HIGH logic level pulse when overcurrent is detected in either the low side MOSFET Q13 on the Demonstrator Board and high side MOSFET Q14 on the Demonstrator Board respectively The two signals are combined through the IC3 OR gate The resulting signal must be processed in the uP or other logic block One of the simplest solutions would be a latch circuit which on a high pulse forces the output go low This causes the Electronic enabling disabling circuit to disable the amplifier Through manual intervention and or after a certain while the latch should be reset to a HIGH logic level which in turn re enables the amplifier Table 3 Components Component Value R1 R4 270 Q R2 R3 4 7 kQ R5 R6 R7 R8 R9 R10 R11 R12 10 kQ m C1 C2 4 7 nF D1 D5 Philips PDZ10B D2 D3 D4 D6 Philips PDZ5 1B Q1 Philips BC846 Q2 Philips BC856 IC1 IC2 Fast operational amplifier feed with 12 V and 12 V supplies IC3 Philips HEF4071 feed with 5 V 10155 2 Koninklijke Philips Electronics N V 2006 All rights reserved User manual Rev 02 5 September 2006 9 of 12 Philips Semiconductors UM1 01 55 UM10155 2 User manual Discrete Class D High Povver Audio Amplifier 6 3 Sonic performance versus Efficiency trade off The dead time that is allowed between Q13 and Q14 conduction determines the efficiency of the Demonstrator Board for a great deal a long dead time leads to better effic
7. On current technology and information and pass it on to you We set out to make finding the parts and information you need easier more intuitive and affordable so you can create your awesome projects By getting technology in your hands we think everyone is better off We here at HandsOn like to think that we exist in the same group as our customers gt gt curious students engineers prototypers and hobbyists who love to create and share We are snowboarders and rock climbers painters and musicians engineers and writers but we all have one thing in common we love electronics We want to use electronics to make art projects gadgets and robots We live eat and breathe this stuff If you have more questions go ahead and poke around the website or send an email to sales handsontec com And as always feel free to let your geek shine around here we encourage it a 111111 oooosoo ooococo ceococo s s q G G d 1111111 oOcOc Q OQ cO ole ee ococoocoocevo al 2 ar i m z Ca ey R 193 mi p Fi ali E p r iz SF ise m 1 zz ra mumi pa nr A E gt gt eS
8. UM10155 Discrete Class D High Power Audio Amplifier Rev 02 5 September 2006 User manual Document information Info Content Keywords Class D Audio Amplifier Universal Class D UcD PWM Audio Amplifier High Power Audio Abstract This user manual describes the operating instructions and the most important background information of the Philips Semiconductor Discrete Class D High Power Audio Amplifier Demonstrator Board With proper heatsinking of the Power MOSFETs and a well dimensioned power supply the PWM amplifier is capable of supplying 200 W of high quality audio power into a 4 O loudspeaker PHILIPS Philips Semiconductors UM1 01 55 Discrete Class D High Power Audio Amplifier Revision history Rev Date Description 02 20060905 corrected Figure 9 01 20060801 initial version Contact information For additional information please visit http www semiconductors philips com For sales office addresses please send an email to sales addresses www semiconductors philips com UM10155 2 Koninklijke Philips Electronics N V 2006 All rights reserved User manual Rev 02 5 September 2006 2 of 12 Philips Semiconductors UM1 01 55 Discrete Class D High Power Audio Amplifier 1 Introduction UM10155 2 User manual The Universal Class D UcD version 1 00 demonstrator board implements a 200 W true RMS into a 4 Q load high quality audio power amplifier on a very compact printed circuit boar
9. available through the local sales representatives Koninklijke Philips Electronics N V 2006 All rights reserved Rev 02 5 September 2006 10 of 12 Philips Semiconductors 7 Legal information 7 1 Definitions Draft The document is a draft version only The content is still under internal review and subject to formal approval which may result in modifications or additions Philips Semiconductors does not give any representations or vvarranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information 7 2 Disclaimers General Information in this document is believed to be accurate and reliable However Philips Semiconductors does not give any representations or warranties expressed or implied as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information Right to make changes Philips Semiconductors reserves the right to make changes to information published in this document including without limitation specifications and product descriptions at any time and without notice This document supersedes and replaces all information supplied prior to the publication hereof Suitability for use Philips Semiconductors products are not designed authorized or warranted to be suitable for use in medical military aircraft space or life support equipment nor in ap
10. d The amplifier is built up of discrete components only and makes use of Philips patent WO 03 090343 PHILIPS M oss D omp rsion BG k e Ch i Enternot ogi 001aaf148 Fig 1 General vievv The demonstrator board is intended to illustrate the capability of Philips Power MOSFETs in discrete high end PWM audio amplifier applications The board is self contained and only requires a simple non stabilized dual power supply an audio source e g function generator CD player and a loudspeaker to demonstrate its capabilities For evaluation at high output power a provision is made to attach an appropriate heatsink to the MOSFETs on the board Koninklijke Philips Electronics N V 2006 All rights reserved Rev 02 5 September 2006 3 of 12 9002 4 qul d s g 20 A H 1051 elloT Z SSLOLWN 5161 9002 VN 50140109 2 5014 ylibluluoy Q5 Q 3 R8 R9 100 nF 220 Q 330 Q Fig 2 Circuit diagram R29 R12 D6 22 ko Z Basset 27 0 1PS76SB10 BAS316 PHP18NQ11T Q12 PBSS5140T 1PS76SB10 BAS321 27 0 1PS76SB10 BAS316 PHP18NQ11T Q11 PBSS5140T 10 Q R25 0 05 Q R23 10 Q C10 100 pF J5 J6 C16 C17 100 nF Tr 1000 uF J10 C15 680 nF J11 J7 C13 C14 C18 C19 100 nF 22 uF 100 nF 1000 uF J8 J9 001aaf149 KA
11. e Class D High Power Audio Amplifier circuit these two signals may be used to disable the amplifier disconnect J3 and J4 in case of an overcurrent situation Similarly the J3 J4 pin combination can be used to disable the amplifier in case of other fault conditions 4 3 Important notice The High Power Class D Audio Amplifier Demonstrator Board is meant to demonstrate the capabilities of the specific Class D Amplifier design and its semiconductor components No provisions for short circuit and overcurrent protection were made on the demonstrator board itself Neither was an operating temperature compensation feature implemented on the board The circuit on the board is reduced to its essentials In this implementation the High Power Class D Audio Amplifier Demonstrator Board is not intended to be used for long term operation or under extreme temperature conditions when delivering substantial output power 5 Wiring diagram and powering up PHILIPS class D amp version 1 00 QO C5 30 V to 45 V J10 1 aa ml lo O vf c7 p 30 V to 45 V Q C11 L1 Q13 Q14 Q international C14 patent WO 03 090343 001aaf154 Audio input J1 is signal J2 is ground Initially leave J6 and J8 unconnected J7 and J11 are at the same ground potential Fig 7 Wiring diagram UM10155 2 Koninklijke Philips Electronics N V 2006 All rights reserved User manual Rev 02 5 September 2006 7 of 12 Philips Semiconduct
12. iency On the other side long dead time also leads to worse sonic performance it has important adverse consequences for e g THD Short dead time causes quiescent current to go up thus reducing efficiency and improving sonic performance The higher quiescent current is the result of more cross conduction of Q13 and Q14 So most of the power that is lost in this way is dissipated in Q13 and Q14 which may heat up excessively This may cause thermally instable behavior of the MOSFETs For that reason the Demonstrator Board is shipped in low quiescent current mode during initial evaluation the risk of damaging the MOSFETs through thermal runaway is thus reduced Nevertheless by modifying one resistor value the dead time can be shortened and evaluation in enhanced sonic performance mode can take place Changing R9 to a lower value decreases dead time It is left the responsibility of the experimenter to prevent thermal runaway but assistance from Philips will be available through the local sales representatives To reduce the risk of thermal runaway in the enhanced sonic performance mode a thermal feedback loop can be implemented the operating temperature of the MOSFETs can be fed back to the dead time control by changing the fixed R9 value mounting a PTC resistor on the heatsink of the MOSFETs and connecting the PTC in parallel with R9 Again any changes are left the responsibility of the experimenter but assistance from Philips will be
13. ors UM1 01 55 Discrete Class D High Power Audio Amplifier 6 Adding external features 6 1 Electronic enabling disabling of the amplifier PHILIPS class D amp version 1 00 enable signal s C5 Q C7 Q international C14 patent WO 03 090343 001aaf155 Enable signal HIGH enable LOW disable Fig 8 Enabling disabling of the amplifier Electronic enabling disabling can be used for e Implementing pop less and click less start up and shut down e Shutting down the amplifier in case of a failure condition short circuit overcurrent over temperature The transistor in the enabling disabling circuit must be low current 60 V type Such as BC846 and the resistor must limit the base current of the transistor to approximately 1 mA in case of logic level driving that would mean R 4 7 KQ UM10155 2 Koninklijke Philips Electronics N V 2006 All rights reserved User manual Rev 02 5 September 2006 8 of 12 Philips Semiconductors UM1 01 55 Discrete Class D High Power Audio Amplifier 6 2 Short circuit and overcurrent protection PHILIPS class D amp version 1 00 uP OR OTHER LOGIC to enabling disabling circuit international C14 patent WO 03 090343 001aaf156 Fig 9 Short circuit and overcurrent protection The Short circuit and overcurrent protection circuit must be used together with the Electronic enabling disabling circuit The output pins of 1C
14. plications where failure or UM10155 2 User manual Rev 02 5 September 2006 UM10155 Discrete Class D High Power Audio Amplifier malfunction of a Philips Semiconductors product can reasonably be expected to result in personal iniury death or severe property or environmental damage Philips Semiconductors accepts no liability for inclusion and or use of Philips Semiconductors products in such equipment or applications and therefore such inclusion and or use is at the customers ovvn risk Applications Applications that are described herein for any of these products are for illustrative purposes only Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification 7 3 Patents Notice is herewith given that the subject device uses one or more of the following patents and that each of these patents may have corresponding patents in other jurisdictions WO 03 090343 owned by Koninklijke Philips Electronics N V int patent application 7 4 Trademarks Notice All referenced brands product names service names and trademarks are the property of their respective owners Koninklijke Philips Electronics N V 2006 All rights reserved 11 of 12 Philips Semiconductors 6 Contents 1 Introduction rea R yu eos de 3 2 Circuit diagram 4 3 Printed circuit board layout 5 4

Specifications

Contents

Download Pdf Manuals

Related Search

Related Contents