6V to 12V Converter
This inverter circuit can provide up to 800mA of 12V power from a 6V supply. For example, you could run 12V car accessories in a 6V (British?) car. The circuit is simple, about 75% efficient and quite useful. By changing just a few components, you can also modify it for different voltages.
R1, R4 | 2 | 2.2K 1/4W Resistor | |
R2, R3 | 2 | 4.7K 1/4W Resistor | |
R5 | 1 | 1K 1/4W Resistor | |
R6 | 1 | 1.5K 1/4W Resistor | |
R7 | 1 | 33K 1/4W Resistor | |
R8 | 1 | 10K 1/4W Resistor | |
C1,C2 | 2 | 0.1uF Ceramic Disc Capacitor | |
C3 | 1 | 470uF 25V Electrolytic Capcitor | |
D1 | 1 | 1N914 Diode | |
D2 | 1 | 1N4004 Diode | |
D3 | 1 | 12V 400mW Zener Diode | |
Q1, Q2, Q4 | 3 | BC547 NPN Transistor | |
Q3 | 1 | BD679 NPN Transistor | |
L1 | 1 | See Notes | |
MISC | 1 | Heatsink For Q3, Binding Posts (For Input/Output), Wire, Board |
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