| CPC H02M 3/07 (2013.01) [H02M 1/0045 (2021.05); H02M 3/072 (2021.05); H02M 1/0095 (2021.05); H02M 3/158 (2013.01)] | 19 Claims |
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19. A method for operating a power converter which is configured to convert electrical power at an input voltage at an input of the power converter to electrical power at an output voltage at an output of the power converter; wherein the power converter comprises,
a first upper capacitor and a first lower capacitor, which are coupled with one another via a first mid node;
a second upper capacitor and a second lower capacitor, which are coupled with one another via a second mid node;
an inductor; and
a set of power switches; and
wherein the method comprises controlling the set of power switches such that during an operation cycle the power converter is operated in a first main state and in a second main state in a mutually exclusive manner;
wherein within the first main state, the power converter exhibits
a first current path from ground through the first lower capacitor, through the inductor to the output; and
a second current path with
1) A sub-path from the input, through the second upper capacitor, through the second lower capacitor to the output, and
2) a sub-path from ground through the first lower capacitor, through the first upper capacitor, through the second lower capacitor to the output; and
wherein within the second main state, the power converter exhibits
a first current path from ground, through the second lower capacitor, through the inductor to the output; and
a second current path with
1) A sub-path from the input, through the first upper capacitor, through the first lower capacitor to the output, and
2) a sub-path from ground, through the second lower capacitor, through the second upper capacitor, through the first lower capacitor to the output.
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