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公开(公告)号：US20240362146A1
公开(公告)日：2024-10-31
申请号：US18217169
申请日：2023-06-30
Applicant: Texas Instruments Incorporated
Inventor： Karthikeyan Rajamanickam , Venkatesh Natarajan , Manish Bhardwaj
IPC: G06F11/34
CPC classification number: G06F11/348 , G06F11/3476 , G06F2201/88
Abstract: Systems, apparatus, articles of manufacture, and methods are disclosed for real-time trip sequence detection for cascaded trip events. An example integrated circuit device includes trip detector circuitry, a first counter, a first memory, a second counter, a second memory, and control circuitry in communication with the trip detector circuitry, the control circuitry to, in response to a first trigger detected by the fault detector circuit, store a value of the first counter in the first memory, and in response to a second trigger detected by the fault detector circuit, store a value of the second counter in the second memory. The trip detector circuitry will continue the same detection, identification and counter storage logic for the subsequent triggers limited only by the available storage capacity.
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公开(公告)号：US12051969B2
公开(公告)日：2024-07-30
申请号：US18302848
申请日：2023-04-19
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manish Bhardwaj
CPC classification number: H02M1/4208 , H02M1/4233 , H02M7/217
Abstract: Example power factor correction circuits to correct the power factor of power converters are disclosed. An example power factor correction controller circuit includes a phase locked loop phase angle determiner to determine a first phase angle of an input voltage of the power converter and further includes a compensating current determiner to determine, based on the phase angle, a compensating current to compensate for a capacitive current introduced by at least one filter capacitor of the power converter. The power factor correction controller circuit further includes a switch controller to cause a controlled current drawn by a power stage of the power converter to be adjusted by the compensating current to reduce a phase offset between the first phase angle of the input voltage and a second phase angle of the input current drawn at an input of the power converter.
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公开(公告)号：US11689350B2
公开(公告)日：2023-06-27
申请号：US17833971
申请日：2022-06-07
Applicant: TEXAS INSTRUMENTS INCORPORATED
CPC classification number: H04L7/0016 , H04L7/06
Abstract: A system includes a first controller configured to transmit a synchronization signal to a second controller. The second controller is configured to produce a PWM signal. The system also includes a counter configured to provide a count for the second controller, where the second controller is configured to initiate rising edges and falling edges of the PWM signal based on the count from the counter. The second controller is also configured to measure an error between a time when the synchronization signal is received at the second controller and an expected time of receipt for the synchronization signal. The second controller is also configured to adjust a period of the counter based at least in part on the error.
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公开(公告)号：US20220332204A1
公开(公告)日：2022-10-20
申请号：US17853292
申请日：2022-06-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Hui Tan , Manish Bhardwaj , Sangmin Kevin CHON
Abstract: Techniques related to powertrain architectures for vehicles (such as hybrid electric vehicle/electric vehicles) utilizing an on-board charger are disclosed. The techniques include a device for power regulation, the device comprising a direct current (DC)-to-DC voltage converter configurable to convert a first DC voltage from an alternating current (AC)-to-DC converter to generate a first converted DC voltage to charge a battery, and convert a second DC voltage from the battery to a second converted DC voltage for a DC-to-AC inverter. The inverter couples to a motor. A control circuit is configured to direct an operating mode of the voltage converter.
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5.发明公开公开(公告)号：US20230261566A1
公开(公告)日：2023-08-17
申请号：US18302848
申请日：2023-04-19
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manish Bhardwaj
IPC: H02M1/42
CPC classification number: H02M1/4208 , H02M1/4233 , H02M7/217
Abstract: Example power factor correction circuits to correct the power factor of power converters are disclosed. An example power factor correction controller circuit includes a phase locked loop phase angle determiner to determine a first phase angle of an input voltage of the power converter and further includes a compensating current determiner to determine, based on the phase angle, a compensating current to compensate for a capacitive current introduced by at least one filter capacitor of the power converter. The power factor correction controller circuit further includes a switch controller to cause a controlled current drawn by a power stage of the power converter to be adjusted by the compensating current to reduce a phase offset between the first phase angle of the input voltage and a second phase angle of the input current drawn at an input of the power converter.
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Patent Agency Ranking
公开(公告)号：US11050344B2
公开(公告)日：2021-06-29
申请号：US17029317
申请日：2020-09-23
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manish Bhardwaj
Abstract: Example power factor correction circuits to correct the power factor of power converters are disclosed. An example power factor correction controller circuit includes a phase locked loop phase angle determiner to determine a first phase angle of an input voltage of the power converter and further includes a compensating current determiner to determine, based on the phase angle, a compensating current to compensate for a capacitive current introduced by at least one filter capacitor of the power converter. The power factor correction controller circuit further includes a switch controller to cause a controlled current drawn by a power stage of the power converter to be adjusted by the compensating current to reduce a phase offset between the first phase angle of the input voltage and a second phase angle of the an input current drawn at an input of the power converter.
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公开(公告)号：US12187146B2
公开(公告)日：2025-01-07
申请号：US17853292
申请日：2022-06-29
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Hui Tan , Manish Bhardwaj , Sangmin Kevin Chon
Abstract: Techniques related to powertrain architectures for vehicles (such as hybrid electric vehicle/electric vehicles) utilizing an on-board charger are disclosed. The techniques include a device for power regulation, the device comprising a direct current (DC)-to-DC voltage converter configurable to convert a first DC voltage from an alternating current (AC)-to-DC converter to generate a first converted DC voltage to charge a battery, and convert a second DC voltage from the battery to a second converted DC voltage for a DC-to-AC inverter. The inverter couples to a motor. A control circuit is configured to direct an operating mode of the voltage converter.
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公开(公告)号：US11658564B2
公开(公告)日：2023-05-23
申请号：US17326553
申请日：2021-05-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manish Bhardwaj
CPC classification number: H02M1/4208 , H02M1/4233 , H02M7/217
Abstract: Example power factor correction circuits to correct the power factor of power converters are disclosed. An example power factor correction controller circuit includes a phase locked loop phase angle determiner to determine a first phase angle of an input voltage of the power converter and further includes a compensating current determiner to determine, based on the phase angle, a compensating current to compensate for a capacitive current introduced by at least one filter capacitor of the power converter. The power factor correction controller circuit further includes a switch controller to cause a controlled current drawn by a power stage of the power converter to be adjusted by the compensating current to reduce a phase offset between the first phase angle of the input voltage and a second phase angle of the an input current drawn at an input of the power converter.
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公开(公告)号：US11356238B1
公开(公告)日：2022-06-07
申请号：US17328561
申请日：2021-05-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Abstract: A system includes a first controller configured to transmit a synchronization signal to a second controller. The second controller is configured to produce a PWM signal. The system also includes a counter configured to provide a count for the second controller, where the second controller is configured to initiate rising edges and falling edges of the PWM signal based on the count from the counter. The second controller is also configured to measure an error between a time when the synchronization signal is received at the second controller and an expected time of receipt for the synchronization signal. The second controller is also configured to adjust a period of the counter based at least in part on the error.
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公开(公告)号：US20200313548A1
公开(公告)日：2020-10-01
申请号：US16846494
申请日：2020-04-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manish Bhardwaj , Shamim Choudhury
IPC: H02M1/42
Abstract: A drive circuit includes a transient detector that includes a detector input to receive a loop error signal from a phased locked loop (PLL) and generates a transient detected output signal if a transient is detected in an alternating current (AC) input voltage. A controller includes a controller input to receive the transient detected output signal from the transient detector and a feedback input to sense the AC input voltage provided to a bridge circuit. The controller is configured to apply a PLL angle output signal from the PLL to control switch output signals to the bridge circuit if the transient detected output signal is not generated and configured to apply the AC input voltage sensed from the feedback input to control the switch output signals to the bridge circuit if the transient detected output signal is generated.
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