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公开(公告)号：US12231045B2
公开(公告)日：2025-02-18
申请号：US18539346
申请日：2023-12-14
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Bikash Kumar Pradhan , Preetam Charan Anand Tadeparthy , Muthusubramanian Venkateswaran , Venkatesh Wadeyar , Siddaram Mathapathi
Abstract: A controller includes: a pulse-width modulation (PWM) circuit; a control loop; and a reference voltage controller. The control loop has: a feedback input adapted to be coupled to an output voltage of a power stage; a control loop output coupled to a PWM control input; and an operational amplifier with a first feedback input, a first reference input, and an amplifier output, the first feedback input connected to the feedback input, and the amplifier output coupled to the PWM control input. The reference voltage controller has a reference voltage output coupled to the first reference input, the reference voltage controller configured to adjust a reference voltage provided to the reference voltage output responsive to a dynamic error estimate based on error in the operational amplifier.
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公开(公告)号：US11211940B2
公开(公告)日：2021-12-28
申请号：US16732213
申请日：2019-12-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Vibha Goenka , Preetam Charan Anand Tadeparthy , Vikram Gakhar , Muthusubramanian Venkateswaran , Siddaram Mathapathi
Abstract: In at least some examples, an integrated circuit includes an input pin and an analog-to-digital converter (ADC) comprising an input terminal coupled to the input pin and an output terminal. The integrated circuit further includes a logic circuit comprising an input terminal coupled to the output terminal of the ADC, a first output terminal, and a second output terminal. The integrated circuit further includes a resistance circuit. In an example, the resistance circuit includes a resistor coupled between the input pin and a first node, a first switch coupled between the first node and a reference voltage pin, and a second switch coupled between the first node and a ground pin.
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公开(公告)号：US11881774B2
公开(公告)日：2024-01-23
申请号：US17200564
申请日：2021-03-12
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Bikash Kumar Pradhan , Preetam Charan Anand Tadeparthy , Muthusubramanian Venkateswaran , Venkatesh Wadeyar , Siddaram Mathapathi
CPC classification number: H02M3/158 , H02M1/00 , H02M1/0045
Abstract: A controller includes: a pulse-width modulation (PWM) circuit; a control loop; and a reference voltage controller. The control loop has: a feedback input adapted to be coupled to an output voltage of a power stage; a control loop output coupled to a PWM control input; and an operational amplifier with a first feedback input, a first reference input, and an amplifier output, the first feedback input connected to the feedback input, and the amplifier output coupled to the PWM control input. The reference voltage controller has a reference voltage output coupled to the first reference input, the reference voltage controller configured to adjust a reference voltage provided to the reference voltage output responsive to a dynamic error estimate based on error in the operational amplifier.
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