AN1524 Freescale Semiconductor / Motorola, AN1524 Datasheet
AN1524
Related parts for AN1524
AN1524 Summary of contents
Page 1
... A block diagram of a basic AC drive system is shown in Figure 1. CURRENT GATE DRIVE AMPLIFIER +18 V MCU BOARD Figure 1. System Block Diagram Go to: www.freescale.com Order this document by AN1524/D AN1524 INTEGRATED INTEGRATED POWER POWER STAGE STAGE AC DRIVE CAPACITORS + ...
Page 2
... Freescale Semiconductor, Inc. AN1524 The power semiconductors for an AC drive consist of a three phase rectifier and a three phase inverter. The three phase rectifier converts a three phase AC power source into a DC supply. A single phase power source may also be connected to any two of the three inputs. Electrolytic capacitors are used to provide energy storage for the DC supply ...
Page 3
... UL 840 and IEC 335 for 480 VAC drives. The AC drive standards UL 508, UL 508C, VDE 0110, and VDE 0160 refer to these standards or use similar clearance tables. are sufficient to Go to: www.freescale.com AN1524 20 30 MHPM7A20A60A MHPM7A30A60B 3 ...
Page 4
... Freescale Semiconductor, Inc. AN1524 1.0 R2 1.0 Gate Drive The gate drives for the high side IGBTs use optocouplers for level shifting. The circuit is shown in Figure 5. The HCPL0453 optocoupler (U8) was chosen for its high dv/dt capability and speed of operation. The 480 VAC drives must operate with DC ...
Page 5
... Figure 6. A differential amplifier senses current in both directions. A 2.5 volt reference provides an offset for the differential amplifier. The conditioned output varies from volts with 2.5 volts representing zero current. The over–current comparator trips at 12.7 amps. Go to: www.freescale.com AN1524 IO (ANALOG OUTPUT U3b R31 LM293AD 2 ...
Page 6
... Freescale Semiconductor, Inc. AN1524 The temperature amplifier is shown in Figure 7. The circuit consists of an inverting amplifier with a 0.69 volt offset. The output provides a temperature signal of approximately 26.5 mV/ C. The compensation capacitor is essential to avoid oscillations with such a large feedback resistor. Resistor R20 biases the temperature sense diode at 1 mA. The bias current can be increased if necessary to minimize noise problems ...
Page 7
... It is set high to enable the PWM signals. The other two I/O pins are tri–stated. The logic equations for the standard PLD were compiled using ABLE. The PLDs were Go to: www.freescale.com AN1524 + ...
Page 8
... Freescale Semiconductor, Inc. AN1524 programmed using a Data I/O 2900 programmer. The actual ABLE code is included in Appendix III. Additional functions may be implemented by changing the logic equations, recompiling the ABLE code and programming a new PLD motor drive system many of the functions are a combination of hardware and microprocessor software. ...
Page 9
... Using the MC68332 Microcontroller for AC Motor Control, J. Baum and K. Berringer, Motorola Application Note AN1310 2. M68MCD16Y1 Motion Control Development Board Users Manual, M68MCD16Y1/D 3. Multi–Channel PWM TPU Function, TPUPN05/D Go to: www.freescale.com AN1524 MAINS OUTPUT 0–480 VAC 3 5 WIRE ISOLATED ...
Page 10
... Freescale Semiconductor, Inc. AN1524 Figure 13. Integrated Power Stage AC Motor Drive Board For More Information On This Product to: www.freescale.com MOTOROLA ...
Page 11
... MOTOROLA Appendix I Board Schematic IPS AC Motor Drive Power I/O 1 CN6 Integrated Power Stage to: www.freescale.com AN1524 CN3 CN4 + V M CN5 1 DB1 2 DB2 ...
Page 12
... Freescale Semiconductor, Inc. AN1524 CN7 + GND 4 I/O1 5 I/ BRK 4.7 k 4 +18 V CN8 1 + GND For More Information On This Product, ...
Page 13
... DECOUPLING) 0.1 F For More Information On This Product, MOTOROLA IPS AC Motor Drive Voltage and Temperature R20 4.42 k R17 2.2 k PlusT 1 OV 0. (U4 DECOUPLING) 0 to: www.freescale.com AN1524 Temp Sensor Amp C7 1000 pF R21 137 k R22 10 – REF 3 + U4a R23 MC33272D 3.40 k R24 C8 1.30 k ...
Page 14
... Freescale Semiconductor, Inc. AN1524 V REF R25 R26 13.0 k 1.10 k Plusl Minusl R27 C9 1.10 k 120 pF For More Information On This Product, 14 IPS AC Motor Drive Current Limit Current Amp + 5 V U4b – C10 R30 120 pF 13.0 k C11 120 pF Reference Voltage Go to: www.freescale.com R28 3 ...
Page 15
... For More Information On This Product, MOTOROLA IPS AC Motor Drive Low Side Gate Drive + C16 0 R36 100 + C17 0 R37 100 to: www.freescale.com AN1524 G2 R38 100 G4 R39 22 R40 R41 470 G7 R42 22 15 ...
Page 16
... Freescale Semiconductor, Inc. AN1524 +18 V R46 D4 2 R43 180 +18 V R48 D6 2 R44 180 +18 V R50 D8 2 U10 R45 180 For More Information On This Product, 16 IPS AC Motor Drive High Side Gate Drive ...
Page 17
... Resistor 1/ Resistor 1/ 510 Resistor 1/ 100 Resistor 1/ Resistor 1/ 470 Resistor 1/ to: www.freescale.com AN1524 Allow Subs. Package Comp. Manufacturer #WIM22p5 Poly. Wima no #SNAP35 Alum. Nichicon yes 1206 X7R Panasonic yes 805 NPO Panasonic yes 805 NPO ...
Page 18
... Freescale Semiconductor, Inc. AN1524 Bill of Materials — continued Item # Designators Qty Part Number 39 R43,R44,R45 3 40 R46,R48,R50 3 41 R47,R49,R51 SS–12SDP2 MHPM7A15A60A 22V10 LM293AD MC33272D LM285D–2.5 48 U6,U7 2 MC33152D 49 U8,U9,U10 3 HCPL0453 50 U11,U12,U13 3 MC33151D 51 1 4200 0450 ...
Page 19
... UT_in & !UB_in & !OE; UB_out = UB_in & !OE; VT_out = VT_in & !VB_in & !OE; VB_out = VB_in & !OE; WT_out = WT_in & !WB_in & !OE; WB_out = WB_in & !OE; Brk_out = 0; IO3 = 1; end IPS_PAL For More Information On This Product, MOTOROLA Appendix III ABLE Code Listing Go to: www.freescale.com AN1524 19 ...
Page 20
... Freescale Semiconductor, Inc. AN1524 module IPS_PAL title ’Inverted Inputs’ IPS_PAL device ’P22V10C’; ”This ABLE code provides inverted inputs. Configure J1 for pull up resistors.” ”inputs” OE pin 2; UT_in pin 5; UB_in pin 6; VT_in pin 7; VB_in pin 9; WT_in pin 10; WB_in pin 11; ...
Page 21
... IO3 pin 27; equations UT_out = UT_in & !UB_in & !OE; UB_out = UB_in & !OE; VT_out = VT_in & !VB_in & !OE; VB_out = VB_in & !OE; WT_out = WT_in & !WB_in & !OE; WB_out = WB_in & !OE; Brk_out = OV_in; IO3 = 1; end IPS_PAL For More Information On This Product, MOTOROLA Go to: www.freescale.com AN1524 21 ...
Page 22
... JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 *AN1524/D* Go to: www.freescale.com MOTOROLA AN1524/D ...