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公开(公告)号:US20170337985A1
公开(公告)日:2017-11-23
申请号:US15597820
申请日:2017-05-17
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Anindita BORAH , Muthusubramanian VENKATESWARAN , Kushal D. MURTHY , Vikram GAKHAR , Preetam TADEPARTHY
CPC classification number: G11C29/38 , G11C17/08 , G11C17/16 , G11C17/18 , G11C29/027 , G11C29/12 , G11C29/36
Abstract: A one-time programmable (OTP) circuit. The OTP circuit includes a non-volatile OTP memory disposed on a first circuit die. The OTP memory includes a floating gate terminal. The OTP circuit also includes a cross-coupled latch disposed on the first circuit die and coupled to the OTP memory and volatile memory input circuitry disposed on the first circuit die and coupled to the cross-coupled latch. The volatile memory input circuitry is configured to receive a test value and write the test value into the cross-coupled latch. The OTP circuit is configured to receive a programming command and store the test value in the OTP memory in response to receipt of the programming command.
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公开(公告)号:US20210203346A1
公开(公告)日:2021-07-01
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:US20190146020A1
公开(公告)日:2019-05-16
申请号:US15810245
申请日:2017-11-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Sudeep BANERJI , Dattatreya Baragur SURYANARAYANA , Vikram GAKHAR , Preetam TADEPARTHY , Vikas LAKHANPAL , Muthusubramanian VENKATESWARAN , Vishnuvardhan Reddy J.
CPC classification number: G01R31/013 , H02M3/156 , H02M3/1584 , H02M2001/0009
Abstract: A current detection system includes an inductor and a detection circuit coupled across the inductor. The inductor is configured to receive an input signal that includes an input current and generate a voltage across the inductor. The current detection circuit includes a sensing network and a transconductance amplifier. The sensing network includes a capacitor and is configured to monitor a voltage across the inductor. The transconductance amplifier is configured to receive a differential voltage indicative of a voltage drop across the capacitor and output a differential output current proportional to the differential voltage.
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公开(公告)号:US20220209658A1
公开(公告)日:2022-06-30
申请号:US17138484
申请日:2020-12-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Naman BAFNA , Muthusubramanian VENKATESWARAN , Mayank JAIN , Vikram GAKHAR , Vikas LAKHANPAL , Preetam Charan Anand TADEPARTHY , Pamidi RAMASIDDAIAH
Abstract: In some examples, a circuit includes a state machine. The state machine is configured to operate in a first state in which the state machine gates a pulse width modulation (PWM) signal provided for control of a power converter according to a first signal provided by a voltage control loop. The state machine is configured to operate in a second state in which the state machine gates the PWM signal according to a second signal provided by a current limit comparator. The state machine is configured to transition from the first state to the second state responsive to the second signal being asserted after the first signal is asserted in a switching cycle of the power converter. The state machine is configured to transition from the current state to the first state responsive to the first signal being asserted after the second signal in a switching cycle of the power converter.
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公开(公告)号:US20210099084A1
公开(公告)日:2021-04-01
申请号:US16586316
申请日:2019-09-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor: Kuang-Yao CHENG , Muthusubramanian VENKATESWARAN , Dattatreya Baragur SURYANARAYANA , Preetam Charan Anand Tadeparthy
Abstract: A system includes a load and a switching converter coupled to the load. The switching converter includes at least one switching module and an output inductor coupled to a switch node of each switching module. The switching converter also includes a controller coupled to each switching module, where the controller is configured to adjust a pulse clock rate and a switch on-time for each switching module. The controller comprises a pulse truncation circuit configured to detect a voltage overshoot condition and to truncate an active switch on-time pulse in response to the detected voltage overshoot condition.
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公开(公告)号:US20240113623A1
公开(公告)日:2024-04-04
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
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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公开(公告)号:US20230170796A1
公开(公告)日:2023-06-01
申请号:US17537595
申请日:2021-11-30
Applicant: Texas Instruments Incorporated
Inventor: Muthusubramanian VENKATESWARAN , Rohit NARULA , Preetam Charan Anand TADEPARTHY , Matthew John Ascher SCHURMANN , Rajesh VENUGOPAL
Abstract: A multiphase controller includes an integrator enable terminal, a pulse width modulator, an error integrator, an open drain driver, and an integrator enable circuit. The integrator enable terminal is adapted to be coupled to the integrator enable terminal of a different instance of the multiphase controller. The pulse width modulator is configured to modulate a power stage. The error integrator is configured to control the pulse width modulator. The open drain driver is coupled to the integrator enable circuit. The integrator enable circuit is coupled to the pulse width modulator, the error integrator, the open drain driver, and the integrator enable terminal. The integrator enable circuit is configured to activate the open drain driver responsive to generation of a power stage control pulse by the pulse width modulator, and activate the error integrator responsive to a logic low signal at the integrator enable terminal.
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公开(公告)号:US20220294344A1
公开(公告)日:2022-09-15
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
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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