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US 2024/0405659 A1Published application
Compensation circuit for transient response improvement
AssigneeTexas Instruments Incorporated
InventorsMohamed Ahmed, Matthew Schurmann, Rengang Chen
Life of this patent
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Abstract
A circuit includes a compensation inductor, a compensation resistor, and a current emulation circuit. The current emulation circuit has a time constant smaller than a time constant of the compensation inductor and the compensation resistor. The current emulation circuit includes a sense resistor having a first terminal coupled with a first terminal of the compensation inductor, and a sense capacitor having a first terminal coupled with a second terminal of the sense resistor and a second terminal coupled with ground.
Claims20
A circuit comprising:
- a compensation inductor;
- a compensation resistor;
- and
- a current emulation circuit having a time constant smaller than a time constant of the compensation inductor and the compensation resistor, wherein the current emulation circuit comprises:
- a sense resistor having a first terminal coupled with a first terminal of the compensation inductor;
- and
- a sense capacitor having a first terminal coupled with a second terminal of the sense resistor and a second terminal coupled with ground.
4 more elements
A circuit comprising:
- a buck converter including a Trans-Inductor Voltage regulator (TVLR) transformer having a plurality of secondary coils coupled in series between a ground and a terminal;
- an inductor and a first resistor coupled in series between the terminal and the ground having a compensation time constant;
- and
- a current emulation circuit having a time constant smaller than the compensation time constant, wherein the current emulation circuit comprises:
- a second resistor having a first terminal coupled with the terminal;
- and
- a capacitor having a first terminal coupled with a second terminal of the second resistor and a second terminal coupled with ground.
4 more elements
A system comprising:
- a buck converter including a Trans-Inductor Voltage regulator (TVLR) transformer having a plurality of secondary coils coupled in series between a ground and a compensation terminal;
- a controller configured to provide pulse width modulated control signals to the buck converter;
- a compensation inductor and compensation resistor coupled in series between the compensation terminal and the ground having a compensation time constant;
- and
- a current emulation circuit having a time constant smaller than the compensation time constant, wherein the current emulation circuit comprises:
- a sense resistor having a first terminal coupled with the compensation terminal;
- and
- a sense capacitor having a first terminal coupled with a second terminal of the sense resistor and a second terminal coupled with ground.
5 more elements
Dependencies are inferred from the claim text.