Simple Audio Modulated Flyback driver

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02:33:18

This is a simple, low power, audio modulated flyback driver. The base oscillator uses a 555 timer with potentiometer to finely control frequency. The duty cycle is kept at 50% via signal diode between the threshold and discharge pins. Audio is injected to the 555 control pin via any standard operational amplifier. The output drives a single stage high gain, medium power class-a transistor amplifier that in turn drives the gate of a MOSFET or IGBT. 

published 8 years ago

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