Control apparatus and method for current resonance circuit and current resonance power supply
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United States of America Patent
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Feb 2, 2021
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app pub date -
Nov 18, 2019
filing date -
Oct 18, 2019
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Abstract
Embodiments of this disclosure provide a control apparatus and method for a current resonance circuit and a current resonance power supply. The control method includes: performing integration on a resonance current of the current resonance circuit or a switching current of one or more switching elements to generate an integration signal; generating a feedback signal of the current resonance circuit; comparing the integration signal with the feedback signal, and generating a measurement signal according to a comparison result; performing digital filtering on the measurement signal; and according to the measurement signal after filtering, generating a pulse width modulation signal controlling the switching elements.
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