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US 9,960,679 B2Granted
Controlling a pair of switches
AssigneeInfineon Technologies Austria AG
InventorsWolfgang Frank, Remigiusz Viktor Boguszewicz
Life of this patent
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Abstract
Devices and methods are provided where a feedback is provided from a control terminal of a first switch, and a second switch is controlled based on the feedback.
Claims10
A device comprising:
- a first switch, the first switch comprising a first control terminal, a first load terminal, a second load terminal, a first transistor, and a first diode coupled between load terminals of the first transistor;
- a second switch, the second switch comprising a second control terminal, a third load terminal, a fourth load terminal, a second transistor, and a second diode coupled between load terminals of the second transistor;
- and
- a controller, wherein the controller is adapted to
- receive a first feedback regarding a first terminal signal at the first control terminal;
- output a first control signal to the second control terminal based on the first feedback;
- and
- detect when a current flows via the first diode, and to open the first switch when the current flows via the first diode.
5 more elements
A method, comprising:
- receiving, by a controller, a feedback regarding a first terminal signal at a control terminal of a first switch,
- controlling, by the controller, a second switch based on the feedback, wherein controlling the second switch comprises outputting a first control signal to a control terminal of the second switch based on the first feedback, and
- detecting, by the controller, when a current flows via a first diode, and to open the first switch when the current flows via the first diode coupled between load terminals of the first switch,
- wherein the controller is adapted to forward a second input signal as a second control signal closing the second switch only if the feedback indicates that the first switch is open.
1 more element
Dependencies are inferred from the claim text.