Wednesday, May 5, 2010
POWER SUPPLAY 13,8 Volt Schematic
Part list for 12 Amp BDX33-based power supply:
2 x 15 volt 6+ amps
2 times two MR750 (MR7510) diodes (MR750 = 6 Ampere diode) or 2 times 3 1N5401 (1N5408) diodes.
F1 = 1 Amp
F2 = 15 amp
R1 2k2 1 Watt
R2 10k
R3 1k 0.5 watt
R4,R5,R6,R7 0.1 ohm 10 watt
R8 4.7
R9 6k8
C1 two times 4700uF/35v
C2 330uF/35v
C0',C3,C4,C6,C10 100nF
C7 330uF/25v
C8 47nF
C9 47uF/25v
D1 1N5401
D2 LED
D3, D4, D5 1N4001
IC1 78L15
relay 12 volt 2x5 amp switching
3 darlington transistors: T0,T1,T2 = BDX-33 NPN TO-220 transistor
Zd 8 or 9 volt, 5 watt
P1 2k trimmer
If using a bridge rectifier (like in schematic 2) you do not need 2 x 15 volts 6 amps, but 1 x 15 volt 10+ Amps
Part list for 20 Amp BDX33-based power supply:
2 x 15 volt 12+ amps
2 times 3 MR750 (MR7510) diodes (MR750 = 6 Ampere diode) or 2 times 5 1N5401 (1N5408) diodes.
F1 = 2 Amp
F2 = 25 amp
R1 2k2 1 Watt
R2 10k
R3 1k 0.5 watt
R4,R5,R6,R7 0.1 ohm 10 watt
R8 4.7
R9 6k8
C1 22000uF/35v
C2 330uF/35v
C0',C3,C4,C6,C10 100nF
C7 330uF/25v
C8 47nF
C9 47uF/25v
D1 1N5401
D2 LED
D3, D4, D5 1N4001
IC1 7815
relay 12 volt 10 amp switching
Four darlington transistors: T0,T1,T2,T3 = BDX-33 NPN TO-220 transistor
Zd 8 or 9 volt, 5 watt
P1 2k trimmer
If using a bridge rectifier (like in schematic 2) you do not need 2 x 15 volts 12 amps, but 1 x 15 volt 20 Amps
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