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公开(公告)号：US11437917B2
公开(公告)日：2022-09-06
申请号：US16938757
申请日：2020-07-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sheng-Yang Yu , Manish Bhardwaj
Abstract: For predictive synchronous rectifier sensing and control, an example apparatus includes an air core toroid having a voltage output, the air core toroid adapted to surround a portion of a current path and adapted to be coupled through the current path to a transformer, and a control logic circuit having a voltage input and a control output, the voltage input coupled to the voltage output, and the control output adapted to be coupled to a switch.
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公开(公告)号：US11376977B2
公开(公告)日：2022-07-05
申请号：US16236556
申请日：2018-12-30
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：US20210281165A1
公开(公告)日：2021-09-09
申请号：US17326553
申请日：2021-05-21
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manish Bhardwaj
IPC: H02M1/42
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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24.发明申请公开(公告)号：US20210181711A1
公开(公告)日：2021-06-17
申请号：US17176290
申请日：2021-02-16
Applicant: TEXAS INSTRUMENTS INCORPORATED
IPC: G05B19/408 , H02P21/22 , H02P27/12
Abstract: A system comprising a processor, a non-transitory memory, and an application stored in the non-transitory memory is provided. The application is configured, upon execution by the processor, to cause the processor to generate a first controller signal based on a first set of feedback from an electric motor, based on a characterization tone, and based on a controller gain, to provide the first controller signal for operation of the electric motor, to generate a frequency response analysis on a second set of feedback from the electric motor in response to the first controller signal, and to determine a new value of the controller gain based on the frequency response analysis.
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Patent Agency Ranking
公开(公告)号：US11011976B2
公开(公告)日：2021-05-18
申请号：US16846494
申请日：2020-04-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manish Bhardwaj , Shamim Choudhury
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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26.发明授权公开(公告)号：US10921778B2
公开(公告)日：2021-02-16
申请号：US16403156
申请日：2019-05-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
IPC: H02P5/50 , G05B19/408 , H02P21/22 , H02P27/12
Abstract: A system comprising a processor, a non-transitory memory, and an application stored in the non-transitory memory is provided. The application is configured, upon execution by the processor, to cause the processor to generate a first controller signal based on a first set of feedback from an electric motor, based on a characterization tone, and based on a controller gain, to provide the first controller signal for operation of the electric motor, to generate a frequency response analysis on a second set of feedback from the electric motor in response to the first controller signal, and to determine a new value of the controller gain based on the frequency response analysis.
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公开(公告)号：US20210006153A1
公开(公告)日：2021-01-07
申请号：US17029317
申请日：2020-09-23
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manish Bhardwaj
IPC: H02M1/42
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：US10797589B2
公开(公告)日：2020-10-06
申请号：US16029306
申请日：2018-07-06
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：US09780680B2
公开(公告)日：2017-10-03
申请号：US15284320
申请日：2016-10-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Manish Bhardwaj , Sam Gnana Sabapathy
Abstract: A frequency-controlled power converter includes a power stage frequency response characterization circuit. A PWM input control value F_OL_CTL generates a PWM output control signal to drive the converter to a selected output voltage. F_OL_CTL is added to each of a set of periodic, incrementally time-sequenced discrete frequency deviation control values F_DEV(t) having a periodicity of F_RESP corresponding to a frequency at which a response of the power stage is to be measured. A resulting set of perturbed PWM input control values F_CTL_PTB(t) frequency-modulate the PWM output control signal and perturb the converter output voltage. A corresponding set of perturbed converter output voltage samples V_OUT_PTB(t) is cross-correlated to the set of F_CTL_PTB(t) to generate correlation components of V_OUT_PTB(t) and F_CTL_PTB(t). Real and imaginary components of a frequency response of the converter power stage are determined from the correlation components for each F_RESP and together form the power stage transfer function.
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