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US 12,614,978 B2Granted
Capacitor converter
AssigneeInfineon Technologies Austria AG
InventorsTrung Nguyen, Matthew Hunter
Life of this patent
Estimating the term…
Abstract
A converter includes an input terminal, an output terminal, a rectifier connected between the input terminal and the output terminal, a first switch, a second switch connected to the output terminal and connected in series with the first switch at a first node, and a first leg having a first capacitor coupled to the first node, and a first isolation switch connected between the first capacitor and the rectifier.
Claims20
A converter, comprising:
- an input terminal;
- an output terminal;
- a rectifier connected between the input terminal and the output terminal;
- a first switch;
- a second switch connected to the output terminal and connected in series with the first switch at a first node;
- a third switch connected to the output terminal and connected in series with the second switch at a second node;
- a first leg comprising:
- a first capacitor coupled to the first node;
- and
- a first isolation switch connected between the first capacitor and the rectifier;
- a second leg comprising:
- a second capacitor coupled to the second node;
- and
- a second isolation switch connected between the second capacitor and the rectifier;
- and
- a controller configured to:
- in a first mode, control switching of the first switch, the second switch, and the third switch to generate an output at the output terminal;
- and
- in a second mode, open the second isolation switch, control the third switch in an always-on condition, and control switching of the first switch and the second switch to generate the output at the output terminal.
16 more elements
A converter, comprising:
- an input terminal;
- an output terminal;
- a rectifier connected between the input terminal and the output terminal;
- a first switch;
- a second switch connected to the output terminal and connected in series with the first switch at a first node;
- a first resonant leg comprising:
- a first resonant capacitor coupled to the first node;
- and
- a first isolation switch connected between the first resonant capacitor and a first branch of the rectifier;
- a third switch connected to the output terminal and connected in series with the second switch at a second node;
- a flying leg comprising:
- a flying capacitor coupled to the second node;
- and
- a second isolation switch connected between the flying capacitor and a second branch of the rectifier;
- a compensation inductor connected between the first resonant leg and the flying leg;
- and
- a controller configured to control the first switch, the second switch, the third switch, and the rectifier to generate an output at the output terminal, wherein:
- the controller is configured to:
- in a first mode, control switching of the first switch, the second switch, and the third switch to generate an output at the output terminal;
- and
- in a second mode, open the second isolation switch, control the third switch in an always-on condition, and control switching of the first switch and the second switch to generate the output at the output terminal.
18 more elements
A method of controlling a converter, comprising:
- controlling a first switch, a second switch connected in series at a first node and connected between an input terminal and an output terminal, and a third switch connected to the output terminal and connected in series with the second switch at a second node and controlling a rectifier connected to the output terminal to generate an output at the output terminal;
- and
- controlling a first isolation switch connected between the rectifier and a first capacitor of a first leg connected to the first node and a second isolation switch connected between the rectifier and a second capacitor of a second leg connected to the second node to set a conversion ratio of the converter, wherein:
- controlling the first switch, the second switch, and the third switch comprises:
- in a first mode, controlling switching of the first switch, the second switch, and the third switch to generate an output at the output terminal;
- and
- in a second mode, opening the second isolation switch, controlling the third switch in an always-on condition, and controlling switching of the first switch and the second switch to generate the output at the output terminal.
4 more elements
Dependencies are inferred from the claim text.