Converter circuit for automotive 12V to plus or minus 20V (audio amplifier power supply circuit)
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
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