Automotive 12V to plus or minus 20V converter circuit (audio amplifier power supply circuit)
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Bill Of Materials
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Design: 12V to 20V 100W DC-DC conv
Doc. no.: 1
Revision: 3
Author: Jonathan Filippi
Created: 29/04/05
Modified: 18/05/05
Parts List
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Resistors
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2 R1, R2 = 10
4 R3, R4, R6, R7 = 1k
1 R5 = 22k
1 R8 = 4.7k
1 R9 = 100k
Capacitors
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2 C1, C2 = 10000uF
2 C3, C6 = 47u
1 C4 = 10u
3 C5, C7, C14 = 100n
2 C8, C9 = 4700u
1 C12 = 1n
1 C13 = 2.2u
Integrated Circuits
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1 U1 = TL494
1 U2 = TPS2811P
Transistors
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2 Q1, Q2 = FDB045AN
Diodes
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4 D1-D4 = 1N5822
1 D5 = 1N4148
Miscellaneous
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1 FU1 = 10A
1 L1 = 10u
1 L2 = FERRITE BEAD
1 RV1 = 2.2k
1 RV2 = 24k
1 T1 = TRAN-3P3S
APM 120V smps power supply is widely used in automatic testing sector. The average conversion efficiency is 90%, the load regulation is low, which ensure stable output when the load is changing constantly. The programmable power supply supports standard SCPI communication protocol, which is convenient for user`s secondary development.
Some features of the adjustable power supply as below:
- Ultrafast respond time and high efficiency.
- Accurate voltage and current measurement capability
- Constant Power and wide range of voltage and current output
- Equips with LIST waveform editing function
- Support RS232/RS485/LAN/USB (standard) ,GPIB (optional)
- Master/Slave parallel and series operation mode for up to 10 units
- Built-in standard automobile electrical testing curves
- Full protection: OVP/OCP/OPP/OTP/SCP
- Voltage drop compensation by remote sense line.
- Have obtained CE,UL,CSA,FCC.ROHS
120V DC Power Supply,Lab DC Power Supply,DC Regulated Power Supply,High Voltage Power Supply
APM Technologies Ltd , https://www.apmpowersupply.com