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Sunday, February 24, 2019

Differential amplifier for HV Power Supply

This is part of a precision High Voltage but Low current Power Supply for Testing leakage currents in passive devices. This Supply is a module for a  Automatic Test system in component inspection.

Differential amplifier for HV Power Supply

HV Precision Power Supply Circuits

Insulation of Transformers and the Isolation of plastic capacitors are best analyzed by applying a High Voltage and measuring the leakage currents.

These currents are in the order of nano-amps and pico-amps; values close to the bias-currents and leakage currents of devices. Some offsets and corrections can be done in software for the ATE systems.

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