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DIGITAL CONTROL OF SWITCHED BOUNDARY MODE INTERLEAVED POWER CONVERTER WITH REDUCED CROSSOVER DISTORTION
DIGITAL CONTROL OF SWITCHED BOUNDARY MODE INTERLEAVED POWER CONVERTER WITH REDUCED CROSSOVER DISTORTION
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机译:具有减小的交叉失真的开关边界模式交错式功率变换器的数字控制
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摘要
A circuit arrangement, signal processor, and method for interleaved switched boundary mode power conversion are disclosed. The circuit arrangement comprises at least an input for receiving an alternating input voltage from a power supply; an output to provide an output voltage to a load;a first interleaved circuit comprising: a first energy storage device; and a first controllable switching device; and one or more secondary interleaved circuits, each comprising: a secondary energy storage device; and a secondary controllable switching device; and a signal processor. The signal processor is connected to the controllable switching devices and comprises at least a first switching cycle controller, configured for cycled zero-current switching operation of the first controllable switching device; and one or more secondary switching cycle controllers, configured for cycled zero-current switching operation of the one or more secondary controllable switching devices The signal processor is configured to disable one or more of the interleaved circuits when the alternating input voltage is lower than a first threshold voltage to reduce the zero-crossing time.
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