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US 12,695,377 B2Granted
Switching converter deadtime control
AssigneeTexas Instruments Incorporated
InventorsHua Tang, Xuemei Lu, Zhaofu Zhou, Pengcheng Ban, Yubo Wang
Life of this patent
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Abstract
A circuit includes a controller configured to control switching of a first transistor and a second transistor in switching converter. The controller includes a compensation loop and a deadtime circuit. The compensation loop is configured to provide a compensation value. The deadtime circuit is configured to determine a deadtime value based on the compensation value. The deadtime value defines an interval between turn-off of the first transistor and turn-on of the second transistor.
Claims20
A circuit comprising:
- a controller configured to control switching of a first transistor and a second transistor in a switching converter, the controller including:
- a compensation loop including a voltage loop filter configured to provide a compensation value based on an output voltage of the switching converter;
- and
- a deadtime circuit configured to determine a deadtime value based on the compensation value, the deadtime value defining an interval between turn-off of the first transistor and turn-on of the second transistor.
1 more element
A method, comprising:
- calculating a compensation value based on an output voltage of a switching converter by a voltage loop filter of a compensation loop of the switching converter;
- selecting a deadtime value based on the compensation value, the deadtime value defining an interval between turn-off of a first transistor and turn-on of a second transistor of the switching converter;
- and
- applying the deadtime value to control switching of the first transistor and the second transistor.
1 more element
A switching converter comprising:
- a first transistor and a second transistor coupled in series;
- a controller coupled to the first transistor and the second transistor, the controller including:
- a compensation loop including a voltage loop filter coupled to a voltage output terminal of the switching converter, the voltage loop filter configured to provide a compensation value based on an output voltage of the switching converter provided at the voltage output terminal;
- and
- a deadtime circuit configured to determine a deadtime value based on the compensation value, the deadtime value defining an interval between turn-off of the first transistor and turn-on of the second transistor.
2 more elements
Dependencies are inferred from the claim text.