diode pump 01 negative output

Using a simple diode pump to generate a negative supply rail from a pulsed voltage source.

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Using a simple diode pump to generate a negative supply rail from a pulsed voltage source.

Using schottky diodes will reduce the diode drops.

Note that the pulse source can have any DC offset: it is decoupled by C1. It is the swing of the pulsein signal that determines the output voltage.

The simulation shows how the circuit behaves for different CLK1 duty cycles.

Simulate > Time-Domain > Run Time Domain Simulation

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