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公开(公告)号：US10345353B2
公开(公告)日：2019-07-09
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
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：US10297334B2
公开(公告)日：2019-05-21
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
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：US20250062678A1
公开(公告)日：2025-02-20
申请号：US18425138
申请日：2024-01-29
Applicant: Texas Instruments Incorporated
Inventor： Ramakrishnan Venkatraman , Vikram Gakhar , Nischal R , Amrutheshwara Rao KV , Madhura Nasare , Naman Bafna
Abstract: Described embodiments include a control circuit with a first comparator having a first comparator input receiving a first threshold voltage, and a second comparator input coupled to an output voltage terminal. A second comparator has a third comparator input receiving a second threshold voltage, and a fourth comparator input coupled to a current output terminal. A first logic circuit provides a true signal at its output responsive to a particular number of its inputs receiving a true input. A second logic circuit has inputs coupled to the first comparator output, and to the first logic output. A variable resistance circuit has an output coupled to a mode detection output. An amplifier has inputs coupled to the variable resistance circuit output, and a third reference voltage source. A duty cycle generation circuit provides a respective pulse width modulation (PWM) signal at each of its respective duty cycle outputs.
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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：US20190131872A1
公开(公告)日：2019-05-02
申请号：US15799327
申请日：2017-10-31
Applicant: Texas Instruments Incorporated
Inventor： Kuang-Yao Cheng , Preetam Tadeparthy , Muthusubramanian Venkateswaran , Vikram Gakhar , Dattatreya Baragur Suryanarayana
Abstract: A control circuit for a DC-DC converter and a DC-DC converter are disclosed. The control circuit includes an integrator coupled to receive a first reference voltage and a first voltage that includes an output voltage for the DC-DC converter and to provide an integrated error signal. A first comparator is coupled to receive the first reference voltage and the first voltage and to provide a dynamic-integration signal that adjusts the integration time constant of the integrator.
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Patent Agency Ranking
公开(公告)号：US11811314B2
公开(公告)日：2023-11-07
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：US10996256B2
公开(公告)日：2021-05-04
申请号：US16919485
申请日：2020-07-02
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：US20200333390A1
公开(公告)日：2020-10-22
申请号：US16919485
申请日：2020-07-02
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：US20240297566A1
公开(公告)日：2024-09-05
申请号：US18309096
申请日：2023-04-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Amrutheshwara KV , Preetam Tadeparthy , Vikas Lakhanpal , Vikram Gakhar , Sreelakshmi S
CPC classification number: H02M1/0025 , H02M1/0009 , H02M1/0012 , H02M3/158
Abstract: Provided herein are various enhancements for voltage regulators and associated control schemes that provide power to fast transient load circuitry. In one example, a power controller includes a transient detection circuit configured to monitor a change in timing among pulse signals associated with voltage conversion phases supplying current to a load circuit. The transient detection circuit is configured to identify a transient event condition corresponding to a change in current demand of the load circuit, and responsively output an indication of the transient event condition.
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公开(公告)号：US20240039402A1
公开(公告)日：2024-02-01
申请号：US18376230
申请日：2023-10-03
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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