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A secondary controller for use in a synchronous flyback converter, a power converter, and a method for controlling a synchronous flyback converter
A secondary controller for use in a synchronous flyback converter, a power converter, and a method for controlling a synchronous flyback converter
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机译:用于同步反激式转换器,功率转换器和用于控制同步反激转换器的方法的辅助控制器
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摘要
To provide a secondary controller for use in a synchronous flyback converter that includes a comparator, a drive circuit and logic circuitry.SOLUTION: The comparator is coupled to generate a compare signal in response to a comparison of a threshold to an input signal representative of a secondary winding voltage of the synchronous flyback converter. The drive circuit is coupled to generate a drive signal to control a first switch to be coupled to a primary side of the synchronous flyback converter. The drive signal is coupled to be generated by the drive circuit in response to a feedback signal representative of an output of the synchronous flyback converter. The logic circuitry is coupled to the drive circuit and the comparator, and is also coupled to generate a control signal to control a second switch in response to the drive signal and the compare signal.SELECTED DRAWING: Figure 1
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