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File name 13v40aps.pdf

ARRL Handbook CD Template File Title: 13.8-V, 40-A Power Supply Chapter: 11 Topic: A 13.8-V, 40-A Switching Power Supply Template contains: Parts placement diagram PC Board Etching Pattern Note: Etching pattern may be slightly too large for US Letter size paper on your printer. Schematic Diagram Note: The schematic diagram is printed correctly in the 2000 ARRL Handbook. The schematic diagram is printed incorrectly in the 1999 ARRL Handbook; this is the corrected schematic. D6 R10 C15 D7 D8 R11 C16 D9 D17 R19 L2 C17 C18 R15 R16 C19 R23 R14 C36 C20 C21 R16 R18 C32 R20 VR1 R17 R15 C35 AC IN C33 C22 C37 R13 C1 D10 R12 C31 D11 U1 R21 R24 Q3 D13 C34 Q4 D14 L3 C23 D12 R22 10 VR2 R25 R26 R34 L1 T1 6 7 8 9 10 6 7 8 9 T2 5 4 3 2 1 5 4 T3 3 2 1 C24 13.8 V R31 D18 C2 C13 NTC2 C3 R9 C12 VR3 R1 R2 C38 R3 R4 D3 Q1 R37 R38 Q5 R39 R35 R36 NTC1 R5 R6 R7 R8 D5 U3 + D4 D2 R32 R27 R28 R29 R30 R33 + FAN R K G C10 + C3 C11 C4 C5 C6 C7 C8 C9 D1 FB2 C14 U2 FB1 Q2 A 13.8-V, 40-A Switching Power Supply, Chapter 11