Low-power adaptive control method and device for isolated converter, and isolated converter

Abstract

The present disclosure relates to a field of isolation converter technology and discloses a low-power adaptive control method and device for isolation converter and an isolation converter. The isolation converter comprises a primary control chip, an isolation communication unit, and a secondary main control chip. The low-power adaptive control method comprises: response to a low-power control instruction, the secondary control chip sending a low-power signal to the primary control chip through the isolation communication unit, so that the primary control chip controls a primary demodulation chip to perform hiccup power supply based on a manner of regular inspection, and the secondary control main chip controls a secondary modulation chip to perform hiccup power supply based on an output voltage of the isolation converter. The present disclosure adaptively controls a power supply status of the primary demodulation chip and the secondary modulation chip, significantly reducing an overall power consumption of the isolation converter while also meeting normal communication requirements of the isolation converter, and improving adaptability of system to different application scenarios.

Images