Interleaved DC-DC converter having stacked output capacitors
AssigneeFord Global Technologies, LLC
InventorsBaoming Ge, Lihua Chen
Life of this patent
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Abstract
A voltage converter includes a set of series connected capacitors collectively configured to provide voltage to an inverter. The voltage converter includes a switchgear including rails and switches configured to energize the capacitors with energy from the rails. The voltage converter includes interleaved inductors having respective half bridge switches configured to energize the rails. The voltage converter includes a controller configured to operate the switches of the switchgear to energize less than all of the set. The switch operation is responsive to a request to change the DC link voltage.
Claims20
A voltage converter comprising:
- a set of series connected capacitors collectively configured to provide voltage to an inverter;
- a switchgear including rails and switches configured to energize the capacitors with energy from the rails;
- interleaved inductors having respective half bridge switches configured to energize the rails;
- and
- a controller configured to, responsive to a request to change a DC link voltage, operate the switches of the switchgear to energize less than all of the set.
A voltage converter comprising:
- series connected capacitors collectively configured to provide voltage to an inverter;
- a switchgear including rails and switches configured to energize the capacitors with energy from the rails;
- interleaved inductors having respective half bridge switches configured to energize the rails;
- and
- a controller configured to, responsive to a request to change the voltage, energize at a same time selected pairs of the interleaved inductors and capacitors to alter a gain of the voltage converter.
A voltage converter comprising:
- series connected capacitors collectively configured to provide voltage to an inverter;
- a switchgear including rails and switches configured to energize the capacitors with energy from the rails;
- interleaved inductors having respective half bridge switches configured to energize the rails;
- and
- a controller configured to, responsive to a request to change the voltage, energize one after another selected pairs of the interleaved inductors and capacitors to alter a gain of the voltage converter.
Dependencies are inferred from the claim text.