Power conversion circuit and program method thereof

Abstract

A power conversion circuit includes an isolated power converter, an isolation element, a primary control circuit, and a secondary control circuit. The isolated power converter includes a transformer. The transformer includes a primary coil and a secondary coil, and the secondary coil generates an output voltage. The isolation element generates a feedback signal based on a feedback current. The primary control circuit magnetizes and demagnetizes the primary coil based on the feedback signal. The secondary control circuit generates the feedback current based on the output voltage. When the power conversion circuit operates in a program mode, the secondary control circuit provides a program code to the primary control circuit through the isolation element.

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