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公开(公告)号：US09374003B1
公开(公告)日：2016-06-21
申请号：US14263103
申请日：2014-04-28
发明人： Michael D. McJimsey , David B. Lidsky , Andrew Burstein , Giovanni Garcea , Jeremy M. Flasck , Ilija Jergovic , Andrea Pizzutelli
CPC分类号： H02M3/158 , H02M1/084 , H02M3/157 , H02M3/1584 , H02M2001/0003 , H03H7/20
摘要： A regulated, power supply system is described using multiphase DC-DC converters with dynamic fast-turnon, slow-turnoff phase shedding, early phase turn-on, and both load-voltage and drive-transistor feedback to pulsewidth modulators to provide fast response to load transients. In an embodiment, a system master can automatically determine whether all, or only some, slave phase units are fully populated. The programmable system includes fault detection with current and voltage sensing, telemetry capability, and automatic shutdown capability. In an embodiment, these are buck-type converters with or without coupled inductors, however some of the embodiments illustrated include boost configurations.
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公开(公告)号：US10222814B1
公开(公告)日：2019-03-05
申请号：US15589555
申请日：2017-05-08
发明人： Sombuddha Chakraborty , Yali Xiong , Michael D. McJimsey , Anthony J. Stratakos , Giovanni Garcea , Ilija Jergovic , Andrew Burstein , Andrea Pizzutelli
摘要： A method for controlling a number of phases that are active in a multiphase direct-current-to-direct-current (DC-to-DC) converter includes (a) filtering a current signal representing a magnitude of current processed by the multiphase DC-to-DC converter to generate a filtered signal, (b) comparing the filtered signal to a first threshold value, (c) deactivating one or more phases of the multiphase DC-to-DC converter in response to the filtered signal falling below the first threshold value, (d) comparing the current signal to a second threshold value, the second threshold value being greater than the first threshold value, and (e) activating one or more phases of the multiphase DC-to-DC converter in response to the current signal rising above the second threshold value.
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