ELECTRONICS
555 Timer Flyback Driver for Electric Fence Charger
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CASE ANALYSIS
Scenario
Need a 555 timer flyback driver that generates high-voltage pulses for an electric fence charger from a 12 V battery.
Key decisions
- Use NE555 astable oscillator to set pulse frequency and duty cycle
- Drive an NPN power transistor that switches current through a flyback transformer primary
- Ground one secondary terminal and bring the other to HV output for the fence load
When to reuse this
Reusable for battery-powered fence chargers, ignition coils, or other flyback high-voltage pulse generators where the 555 timer sets the switching rate.
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circuit-555-timer-flyback-driver-for-electric-fence-charger