- Cap-XX
Contents
1. GPRS PA regulator 3 5V analog 3 3V reference 1 2V Adjustable battery current limit upto 2A 2 FLASH Four high brightness LEDs Adjustable current limit upto 4A External LEDs can be connected 3 GPRS Adjustable PA current upto 2A External rail can be connected 4 TIMING PIC microcontroller space for second controller On board or external timing for Flash and GPRS 5 AUDIO 4x 2 75W peak power class D audio amplifiers Single ended or differential input 6 INTERNAL DIP switch selectable continuous load simulators 7 EXTERNAL Can connect other high power loads All information contained herein is strictly confidential APPEB1010 User s Manual rev1 0 Nov 2006 page 2 of 11 CAP XX Pty Limited 2006 CAP x Block Diagram Reference 1 2V Buck Linear Analog Boost Regulator 3 3V 3 5V Li ion Battery 2 5 4 2V adj current T GPRS j adj current 3 8V 5 2V Power Load Combinations More than one power load is possible at any one time depending on the power budget The input power available depends on the battery voltage and its allowed current The evaluation board has an adjustable input current limit potentiometer R23 which was set to 1 5A for the following examples The loaded battery voltage was at 3 5V This gave an average available input power of 5 25W This section looks at some typical load combinations All infor2. 006 page 10 of 11 CAP XX Pty Limited 2006 CAD S w a is HDS Ta Leyes or Lea gt in a in in Leos Les l w eos w2 Vout La sos wr Vout Channel A OUT qa he S TPAO YZF Channel B OUT pear ae 1 teaz YP L Channel A OUT T as Channel B OUT Ties gt GND Single Ended GND Single Ended eo Channel A IN Channel B IN 5 Channel A IN Channel B IN C8 cso csi Y S 6 220n 603 zion en D j SMT CM es T Les 1m L I tom 60 Z os 4 1 CBD sws c 603 L 805 i os Vipers Lawn T 9 y cH in tn kad T n T as Ls na uo Vos f U ew uit Vout Channel D OUT Lawn 2 se x Channel C OUT att lan ai H rs sa TpA20I201 20 tb ag Channel C OUT in ta Z pa Channel D OUT Ts gt m gt L p 3 w GND Single Ended S S GND Single Ended z Ka 2 J 60s S 1 T Channel D IN Channel C IN gt Channel D IN Channel C IN JUMPERS JUMPERS ce cas es 9 220 m 4 20 603 a L aii dk T csa eo cso NOn 7270n PA Ri 360 005 U wi Vout PA R3 190 895 T A Wi Ra 189 605 J 5 KIs RS 180 605 JUMPER X E a 2 1 AM j R10 ONPROS AM l R13 ONPROS e W 3 R14 ONPHOS L J Vout R18 ONPROS T 4 AM All information contained herein is strictly confidential APPEB1010 CAP XX Pty Limited 2006 User s Manual rev1 0 Nov 2006 page 11 of 11
3. CAP X User s Manual Mobile Phone Power Management Evaluation Board APPEB1010 rev 1 Nov 2006 TIMING Evaluation Board Mobile Phone Pover Management All information contained herein is strictly confidential APPEB1010 User s Manual rev1 0 Nov 2006 page of 11 CAP XX Pty Limited 2006 CAP X Mobile Phone Power Management Evaluation Board Introduction CAP XX supercapacitors are thin enough to fit inside a mobile phone and can supply the phone s peak power needs This evaluation board allows the user to test the CAP XX power management architecture Typical peak power loads that need support are the camera phone high brightness LED flash 4x LEDS 1A each the GPRS Power Amplifier and class D audio amplifiers Depending on the power budget determined by the on board adjustable battery current limit these loads may be supported simultaneously The board also has connections for other peak power loads that the user may wish to evaluate such as hard drives etc Timing circuitry is included for the LED flash 67ms or 133ms and for the GPRS Power Amplifier simulator 25 duty cycle for class 10 and 2 for network poll simulation User timing can be connected however take NOTE not to exceed the thermal limits of the high brightness LEDs They should not be turned on for longer than 200ms and allow a rest time of 3s Board Summary 7 sub circuits 1 POWER Buck boost from battery to supercapacitor 3 8V or 5 2V rail
4. econds 5 To use the GPRS with on board timing connect jumpers across pins 9 amp 10 pins 11 amp 12 of J10 This instructs the PIC controller U7 on the GPRS options of 2 or 25 and off or on respectively Also needed is a jumper across pins 13 amp 14 of J8 to connect this timing signal to the GPRS section AUDIO 1 There are four separate audio channels each rated at 2 75W Texas Instruments TPA2032D1 They are designed to drive 4Q speakers 2 For single ended input signals ground the IN pin using a jumper on pins 5 amp 7 of the relevant channel jumper J13 J14 J12 J11 Connect the ground of the input signal to IN and the single ended input to IN For more information refer to the TPA2032D1 data sheet INTERNAL 1 This simulates continuous loads by manually switching in resistors to either the Vout rail 5 2V or the PA rail 3 5V Only those resistors connected to the PA rail are presently populated R5 R4 R3 R1 These resistors are 3609 1809 1809 180 respectively This allows various combinations using the DIP switch SW1 of 10mA and 20mA EXTERNAL 1 Other high power loads may be connected to this board using J4 amp J5 for Vout and J6 amp J5 for PA These jumpers also provide convenient points for measuring the supercapacitor voltage Further Information CAP XX will be pleased to provide further information on the applications described here and on the use of supercapacitors in any application Please use the con
5. he LEDs for longer than 200ms and be sure to allow a 3s thermal recovery time This simulates a typical GPRS Power Amplifier PA The onboard timing is programmed for class 10 25 duty cycle or a network poll 2 duty cycle The current can be measured and adjusted using a loop on J9 and the potentiometer R48 upto 2A respectively This board is designed for class 10 operation if any other timings or rails are connected be sure not to violate the thermal limits of the three power resistors R37 R38 R39 and the MOSFET M2 Zetex ZXM64N02X All information contained herein is strictly confidential APPEB1010 User s Manual rev1 0 Nov 2006 page 7 of 11 CAP XX Pty Limited 2006 CAP X TIMING 1 The onboard timing can be used to signal the FLASH and GPRS sections The preprogrammed timing modes used can be manually chosen by the DIP switch SW4 or they can be remotely chosen using J10 2 The user can implement their own timing modes by connecting directly to J8 3 To use the FLASH with on board timing connect jumpers across pins 5 amp 6 pins 7 amp 8 of J10 This instructs the PIC controller U7 on the FLASH options of off or on and 67ms or 133ms respectively Also needed is a jumper across pins 9 amp 10 of J8 to connect this timing signal to the FLASH section 4 The push button switch SW3 can be used instead of pini of SW4 for generating the FLASH signal Holding down this button continuously causes the FLASH to pulse every three s
6. mation contained herein is strictly confidential APPEB1010 User s Manual rev1 0 Nov 2006 page 3 of 11 CAP XX Pty Limited 2006 CAP X Network Poll 2 duty cycle amp LED Flash 4A 133ms This shows that the supercapacitor can provide the 4A required to drive four high brightness LEDs whilst remain in contact with the network another 1 8A There is no need to gate the Flash off during network polls eliminating the possibility of dark lines in the photo Sourcing these 5 8A pulses at an average of approximately 4 5V is impossible without the use of a supercapacitor Network Poll amp LED Flash lt ded Le pus Me 6 Flash PA A E Vout V am Battery A Z o O b LS gt 1 r r r r r r r r r 0 05 0 0 05 0 1 0 15 0 2 0 25 0 3 0 35 0 4 0 45 time S All information contained herein is strictly confidential APPEB1010 User s Manual rev1 0 Nov 2006 page 4 of 11 CAP XX Pty Limited 2006 CAP X GPRS class 10 amp 2W Continuous Audio 1kHz test signal In this particular example it can be seen that the PA can be fully supported at 33dBm 1 8A amp 3 5V whilst still providing 2W continuous audio 2x4Q speakers each with 500mA rms Note that much higher peak power would be available for burst loads rather than continuous such as bass so long as the average does not exceed 2W There is no need to gate the audio off during class 10
7. mp Bat marked The Linear Technology buck boost LTC3442 U2 has a maximum input voltage of 5 5V and a minimum of 2 4V The current from the battery can be limited up to 2A by adjusting the potentiometer R23 A high current limit enables the maximum power to be delivered to a combination of power loads A low current limit might only enable one power load however it maximises the battery runtime Jumpers J1 and J2 allow the inductor and supercapacitor current to be measured respectively If the Flash or high power audio is not required then the supercapacitor voltage output of the buck boost may be set to only 3 8V else 5 2V is required This is done manually using the toggle switch SW2 This Vout_select signal is also connected to J8 if remote switching is required J4 and J5 of the EXTERNAL section provide convenient points to measure the supercapacitor voltage Two indicating LEDs are provided to show the input voltage Vin and the supercapacitor voltage Vout Note that the Vout LED can still be illuminated even when the battery is removed This is because of the energy stored in the supercapacitor The LEDs can be disconnected using J7 if their constant drain on the battery is undesirable H The LEDs total current can be measured and adjusted by using a loop on J16 and the potentiometer R34 respectively External LEDs can be tested by connecting them to J16 and J15 DO NOT use an external timing source that drives t
8. tact details on the header page or visit the CAP XX web site All information contained herein is strictly confidential APPEB1010 User s Manual rev1 0 Nov 2006 page 8 of 11 CAP XX Pty Limited 2006 CAP X 2 POWER HL n JUMPER Vin 2 5 4 2V RG ce ca is 10u 100 B DNP 10u tt itu ss as m eos eos feos eos c9 10a DNP 7 gt RA c2 lem lcu Ri em a on IW 10u 10u SK cis 1404 oos ews T 05 E 1009 case ow sos cie 150 Z RIS cu gt RI RIT on ZZ 4308 08 20K 1 a K ie l lt BZ U s R20 03 bao ag de va 10 La 154k 1 63 ou 603 v R29 P ioe FB 1 22V lad 100 p mim 609 x 603 is d R2 we 1M1 aid if ca E 1007 Im i DNP 603 Gra DNP 30k 1 603 Ta R3 Set PA 3 5V Ladi All information contained herein is strictly confidential APPEB1010 User s Manual rev1 0 Nov 2006 page 9 of 11 CAP XX Pty Limited 2006 CAP x FLASH 6 i JUMPERI vaz JUMPER T os DE or 7 08 f cn ca Pwr PWFI PWF Pwr tHe 823 WE 83 H l il TIMING o JUMPERD ity case O 39 JUMPER GPRS GPRS 1 JUMPERTO Pad Flash 2 2 2512 PIC 12F908 SOIC m GPRS 2 ee 603 L JUMPERS pope L EEG b All information contained herein is strictly confidential APPEB1010 Users Manual rev1 0 Nov 2
9. transmissions GPRS amp Continuous Audio a O OT aS annig 4 lt Ker eehed Oo 3 pas 5 Battery A O Each Speaker A n 274 PA A ao Vout V PA V o Dt b LS gt 0 1 T T T T T T T T T 0 001 0 0 001 0 002 0 003 0 004 0 005 0 006 0 007 0 008 0 009 time S All information contained herein is strictly confidential APPEB1010 User s Manual rev1 0 Nov 2006 page 5 of 11 CAP XX Pty Limited 2006 CAP X Network Poll 2 duty cycle amp 3 3W Continuous Audio Since the average power for the PA has dropped by a factor of 12 5 from 25 duty cycle to 2 more power is available for the audio In this example the continuous audio power is 3 3W 2x4Q speakers each with 640mA rms Note that much higher peak power would be available for burst loads rather than continuous such as bass so long as the average does not exceed 3 3W There is no need to gate the audio off during network polls Network Poll amp Continuous Audio J i uii m i i f ll I Ii I UU time s All information contained herein is strictly confidential APPEB1010 User s Manual rev1 0 Nov 2006 page 6 of 11 CAP XX Pty Limited 2006 CAP X Circuit Description refer to schematics at the end of this manual POWER 1 FLAS 1 2 3 GPRS 1 Connect a Li ion battery or bench top supply to J3 observing correct polarity Bat a
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