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Active Discharge Circuit for 800 V Systems

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AC05AT WSZ

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Active discharge is a known method to discharge the stored energy in a capacitor (or any other energy storing element) in a controlled manner in which the system voltage can reach a safe value within a certain amount of time.

This reference design follows the design steps required to discharge a DC-Link bus voltage of 850 V to 60 V in less than 2 s for a capacitor of 500 μF.

Reference Design Files

Reference Board

Datasheet

Active discharge is a known method to discharge the stored energy in a capacitor (or any other energy storing element) in a controlled manner in which the system voltage can reach a safe value within a certain amount of time.

This reference design follows the design steps required to discharge a DC-Link bus voltage of 850 V to 60 V in less than 2 s for a capacitor of 500 μF.

Reference Design Files

Reference Board

Datasheet

Selected

AC05AT WSZ

Thumbnail 0Thumbnail 1

Reference

Functional Block Diagram

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Features

High pulse load surface-mounted wirewound resistors, carbon film MELF resistors, and thick film technology resistors

Low part count, isolated gate drive circuit without the need for an external power supply

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