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公开(公告)号：US10746778B2
公开(公告)日：2020-08-18
申请号：US16425449
申请日：2019-05-29
Applicant: Texas Instruments Incorporated
Inventor： Sudeep Banerji , Dattatreya Baragur Suryanarayana , Vikram Gakhar , Preetam Tadeparthy , Vikas Lakhanpal , Muthusubramanian Venkateswaran , Vishnuvardhan Reddy J
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：US20190277897A1
公开(公告)日：2019-09-12
申请号：US16425449
申请日：2019-05-29
Applicant: Texas Instruments Incorporated
Inventor： Sudeep Banerji , Dattatreya Baragur Suryanarayana , Vikram Gakhar , Preetam Tadeparthy , Vikas Lakhanpal , Muthusubramanian Venkateswaran , Vishnuvardhan Reddy J
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：US10177644B1
公开(公告)日：2019-01-08
申请号：US15729004
申请日：2017-10-10
Applicant: TEXAS INSTRUMENTS INCORPORATED
Abstract: A voltage converter includes a high side power transistor coupled to an input voltage node and a low side power transistor coupled to the high side power transistor at a switch node. The switch node is configured to be coupled to an inductor. A slope detector circuit is configured to receive a signal indicative of a current through the inductor. The inductor current is a triangular waveform comprising a ramp-up phase and a ramp-down phase. The slope detector circuit also is configured to generate an output signal encoding when the inductor current is ramping up and when the inductor current is ramping down.
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公开(公告)号：US20250062700A1
公开(公告)日：2025-02-20
申请号：US18451363
申请日：2023-08-17
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Mohamed Ahmed , Matthew Schurmann , Preetam Tadeparthy , Rohit Narula , Vikram Gakhar , Vikas Lakhanpal , Karthik Anyam , Rengang Chen
IPC: H02M7/537
Abstract: A power controller comprises a control loop configured to control timing of pulsed signals that activate phases of a coupled inductor voltage regulator based on current demand of a load circuit and comprises a transient detection circuit configured to determine a projected current through a compensation inductor of the coupled inductor voltage regulator based on a state of the phases and operating parameters of the coupled inductor voltage regulator. The transient detection circuit is configured to detect a transient in the current demand of the load circuit based on a variability in phase-to-phase overlap of the pulsed signals. Responsive to detecting the transient, the transient detection circuit is configured to apply a correction to the control loop that alters the timing of the pulsed signals based on the projected current through the compensation inductor.
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Patent Agency Ranking
公开(公告)号：US20250062695A1
公开(公告)日：2025-02-20
申请号：US18621376
申请日：2024-03-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Rohit Narula , Vikram Gakhar , Preetam Tadeparthy , Nischal R.
IPC: H02M3/335 , G01R19/165
Abstract: Some examples relate to a circuit including a plurality of input pins, a plurality of output pins, a pulse width modulated (PWM) controller, and an inductor-open detection circuit. The PWM controller has a plurality of inputs and a plurality of outputs. The plurality of inputs of the PWM controller are coupled to the plurality of input pins, and the plurality of outputs of the PWM controller are coupled to the plurality of output pins. The inductor-open detection circuit has an input coupled to a pin of the plurality of input pins, and has an output coupled to the PWM controller.
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公开(公告)号：US20240364221A1
公开(公告)日：2024-10-31
申请号：US18224818
申请日：2023-07-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sreelakshmi Suresh , Preetam Tadeparthy , Vikas Lakhanpal , Vikram Gakhar
CPC classification number: H02M3/1584 , H02M1/0009 , H02M1/0025 , H02M3/157
Abstract: At least one example describes mechanisms to improve performance of a multiphase voltage regulator. In at least one example, an integrated circuit is provided which includes control circuitry coupled to a first power stage and a second power stage. The first power stage and a second power stage are coupled to an output power supply rail, wherein the control circuitry generates a first pulse width modulated signal for the first power stage and a second pulse width modulated signal for the second power stage. In at least one example, the control circuitry aligns rise and fall times of the first pulse width modulated signal and the second pulse width modulated signal based on an undershoot condition being detected on the output power supply rail.
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公开(公告)号：US11005370B2
公开(公告)日：2021-05-11
申请号：US15094866
申请日：2016-04-08
Applicant: Texas Instruments Incorporated
IPC: H02M3/158
Abstract: The disclosure provides a multi-phase converter. The multi-phase converter includes a controller and one or more switches. The one or more switches are coupled to the controller, and configured to receive an input voltage. A switch of the one or more switches is activated by the controller in a predefined phase of N phases in the multi-phase converter, where N is a positive integer. A processing unit is coupled to the controller and estimates a number of phases to be activated based on a load current. The processing unit also stores a threshold current limit corresponding to each phase of the N phases based on the input voltage and a switching frequency.
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公开(公告)号：US10551859B2
公开(公告)日：2020-02-04
申请号：US15596864
申请日：2017-05-16
Applicant: Texas Instruments Incorporated
Inventor： Vikram Gakhar , Preetam Tadeparthy , Dattatreya Baragur Suryanarayana , Muthusubramanian Venkateswaran , Vikas Lakhanpal
IPC: G05F1/575
Abstract: In a described example, a method includes using a power supply, supplying an output voltage that varies in response to a reference voltage; detecting a voltage ramp in an input reference voltage; generating an offset voltage waveform; adding the offset voltage waveform to the input reference voltage to generate a second reference voltage; and using the second reference voltage, operating the power supply to supply the output voltage.
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公开(公告)号：US20170336818A1
公开(公告)日：2017-11-23
申请号：US15596864
申请日：2017-05-16
Applicant: Texas Instruments Incorporated
Inventor： Vikram Gakhar , Preetam Tadeparthy , Dattatreya Baragur Suryanarayana , Muthusubramanian Venkateswaran , Vikas Lakhanpal
IPC: G05F1/575
CPC classification number: G05F1/575
Abstract: In a described example, a method includes using a power supply, supplying an output voltage that varies in response to a reference voltage; detecting a voltage ramp in an input reference voltage; generating an offset voltage waveform; adding the offset voltage waveform to the input reference voltage to generate a second reference voltage; and using the second reference voltage, operating the power supply to supply the output voltage.
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