The self-made temporary 220V inverting power supply circuit

Published:2011/6/30 4:28:00 Author:Seven | Keyword: self-made, inverting, power supply | From:SeekIC

1. The principle of the circuit The transistor V, the N1 and N2 coils of transformer T and the capacitor C compose the LC oscillating circuit of transformer coupling. The potentiometer RP and resistor R provide bias current for the oscillator. 2. Element selection V is adopted with 3DD59A, R is a 1/4W general resistor, C is 0.22μF/50V, the transformer is self-made, N1 and N2 are the 0.9mm covered wire, N3 is the 0.67mm covered wire, the coil frame can be made of the 1mm hard paper board, the core would better be ferrite of U or loop shape, if not, it can be replaced by silicon-steel sheet of E or F shape.



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