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Current Balance Circuit and Multiphase DC-DC Converter and Current Balance Method Thereof
Current Balance Circuit and Multiphase DC-DC Converter and Current Balance Method Thereof
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机译:电流平衡电路和多相dc-dc转换器及其电流平衡方法
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摘要
The present invention discloses a current balance circuit for a multiphase DC-DC converter. The current balance circuit comprises a current error calculation circuit, for generating a plurality of current balance signals indicating imbalance levels of a plurality of inductor currents of a plurality of channels of the multiphase DC-DC converter according to a plurality of current sensing signals of the plurality of channels, a time shift circuit, for adjusting pulse widths of a plurality of clock signals according to the plurality of current balance signals, and a ramp generator, for deciding shift levels of a plurality of ramp signals according to the plurality of clock signals.
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