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US 10,651,731 B1Granted
Zero voltage switching of interleaved switched-capacitor converters
AssigneeInfineon Technologies Austria AG
InventorsChristian S. Rainer, Matthew A. Hunter
Life of this patent
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Abstract
A power supply system comprises: multiple switched-capacitor converters and a controller. The multiple switched-capacitor converters include at least a first switched-capacitor converter interleaved with a second switched-capacitor converter. During operation, the controller produces control signals. The control signals control the interleaved first switched-capacitor converter and the second switched-capacitor converter to produce an output voltage to power a load.
Claims31
An apparatus comprising:
- a first switched-capacitor converter;
- a second switched-capacitor converter, the first switched-capacitor converter interleaved with the second switched-capacitor converter;
- an inductor, the inductor coupling the first switched-capacitor converter to the second switched-capacitor converter;
- a controller that produces control signals, the control signals controlling the first switched-capacitor converter and the second switched-capacitor converter, the interleaved first switched-capacitor converter and the second switched-capacitor converter being an interleaved switched-capacitor converter configured to produce an output voltage that powers a load;
- and wherein the inductor is configured to provide zero voltage switching to first switches in the interleaved switched-capacitor converter and second switches in the interleaved switched-capacitor converter.
2 more elements
An apparatus comprising:
- a first switched-capacitor converter;
- a second switched-capacitor converter, the first switched-capacitor converter interleaved with the second switched-capacitor converter;
- and
- a controller to produce control signals, the control signals controlling the first switched-capacitor converter and the second switched-capacitor converter, the interleaved first switched-capacitor converter and the second switched-capacitor converter configured to produce an output voltage that powers a load;
- a first resonant circuit path, the first resonant circuit path disposed in the first switched-capacitor converter;
- a second resonant circuit path, the second resonant circuit path disposed in the second switched-capacitor converter;
- and
- an inductor electrically coupling the first resonant circuit path and the second resonant circuit path, the inductor configured to provide zero voltage switching to first switches in the first switched-capacitor converter and second switches in the second switched-capacitor converter.
5 more elements
A method comprising:
- receiving an input voltage, the input voltage inputted to an interleaved switched-capacitor converter including a first switched-capacitor converter and a second switched-capacitor converter, an inductor coupling the first switched-capacitor converter to the second switched-capacitor converter;
- producing control signals;
- via the control signals, controlling the first switched-capacitor converter and the second switched-capacitor converter to produce an output voltage to power a load;
- wherein the first switched-capacitor converter includes a first resonant circuit path;
- wherein the second switched-capacitor converter includes a second resonant circuit path;
- and the method further comprising:
- electrically coupling the first resonant circuit path and the second resonant circuit path to the inductor, the electrical coupling to the inductor providing zero voltage switching to first switches in the first switched-capacitor converter and second switches in the second switched-capacitor converter.
4 more elements
Dependencies are inferred from the claim text.