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Created June 15, 2012
Last modified June 15, 2012
Tags diode-pump  

Summary

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


Description

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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