Kung gusto ka ala hasul try this one bro... Just buy a 12V power inverter and connect this circuit to the output.
ZD1,ZD2,ZD3 = 30V
ZD4 = 6V
0.25 watts na tanan ZENER DIODE.
Don't forget to mount all power transistors in heatsink. You can add more transistor if you want.
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