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METHOD AND APPARATUS FOR ZERO-CURRENT SWITCHING CONTROL IN SWITCHED-CAPACITOR CONVERTERS
METHOD AND APPARATUS FOR ZERO-CURRENT SWITCHING CONTROL IN SWITCHED-CAPACITOR CONVERTERS
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机译：开关电容器变换器中零电流开关控制的方法和装置
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摘要
A switched-capacitor converter includes a plurality of legs coupled between the input and a rectifier at the output. Each leg includes a capacitor. A first group of legs is coupled to a first branch of the rectifier, and a second group is coupled to a second branch of the rectifier. A switch device is connected to each leg. The controller alternates switching of the switch devices connected to the first and second groups of legs to transfer energy from input to output. The switching is modified based on zero-crossing information which indicates when current through each switch device crosses or nearly crosses zero, so that each switch device connected to the same group of legs is turned off when current through that switch device crosses or nearly crosses zero and remains off until all switch devices connected to that group have been turned off for a predetermined amount of time.
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