Atesa Legal PLLC
Communication circuit for flyback power converter with synchronous rectifier
A method for communicating with a power converter comprises initiating a communication sequence by sensing a first distortion of a sensed waveform during a discharge period of a first power transfer cycle of the power converter. The sensed waveform is proportional to a secondary current of the power converter. At a primary side of the power converter, a data bit is received from a secondary side of the power converter, by sensing a second distortion to represent one state of the data bit and sending an absence of the second distortion to represent another state of the data bit. The secondary distortion is applied to the secondary current during the discharge period of a subsequent power transfer cycle.
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
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Chih Hsien Li Ching Wen Yue-Hong Zhibo Ju-Hyun
Hsieh Lin Fu Tang Tao Kim