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How to determine the output impedance of a power converter

Buck Converter Output Impedance

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This video covers how to use the PSIM AC sweep function to determine the output impedance of a buck converter. The method used is applicable to most other power converter topologies. To determine the output impedance a voltage controlled current source is used to inject a current into the output of the buck. The voltage and current are monitored and Ohm’s law is used to determine the impedance at different frequencies.

 

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