Electronic Circuits and Tutorials
Electronic Schematics - F

Flyback Circuits

10 to 30K Volt Flyback Power Supply:

Flyback Circuit Provides Isolated Power Conversion: 01/07/99 EDN-Design Ideas  / PDF contains multiple circuits - scroll to find this circuit.

Ignition Coil / Flyback Transformer Based High Voltage Generators: Uses a 555 timer IC to generate a 720Hz triangle waveform (at pin 2 of the IC). This waveform is of about 50% duty cycle. This triangle waveform is compared to a fixed voltage with a comparator, IC2. The fixed voltage can be varied by potentiometer VR1. The output of the comparator is a 720Hz square wave of variable duty cycle.

Output Adjustable Flyback Converter:

Single Transistor Flyback Driver:

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