DC to AC Inverter with 555

This circuit is more of a DC to AC inverter, it uses a 555 IC as a low frequency oscillator, adjustable, adjustment can be done by the potentiometer R4 and frequency should be between 50-60 Hertz.

DC to AC Inverter with 555 Circuit Diagram:

DC to AC Inverter with 555 Circuit Diagram


The pulses from the IC 555 will go to Q1 and Q2 are amplified and sent to the transformer T1, which has its winding reversed. Capacitor C4 and coil L1 filter are the input to T1, it effectively ensures that a sine wave is formed.

List of components:

R1 = 10K
R2 = 100K
R3 = 100 ohms
R4 = 50K potmeter
C1, C2 = 0.1μF
C3 = 0.01μF
C4 = 2700μF
Q1 = TIP41A, NTE196, ECG196
Q2 = TIP42A, NTE197, ECG197
L1 = 1μH
T1 = Transformer



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