CPC H02M 3/158 (2013.01) [G06F 1/28 (2013.01); H02M 3/157 (2013.01); H02M 1/0003 (2021.05)] | 20 Claims |
1. An apparatus, comprising:
a switch circuit including a plurality of devices, a capacitor, and a switch node coupled to a regulated power supply node via an inductor, wherein the switch circuit is configured to:
couple, during a first time period of a first cycle of a particular switching sequence, the capacitor between an input power supply node and the switch node using a first subset of the plurality of devices;
couple, during a second time period of the first cycle of the particular switching sequence, the capacitor between the switch node and a ground supply node using a second subset of the plurality of devices; and
couple, during a third time period of the first cycle of the particular switching sequence, the switch node to the input power supply node using a third subset of the plurality of devices; and
a control circuit configured to adjust a duration of the third time period based on a voltage level of the input power supply node, a voltage level of the regulated power supply node, a value of the inductor, and respective durations of first time period and the second time period.
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