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公开(公告)号：US09680375B2
公开(公告)日：2017-06-13
申请号：US14631388
申请日：2015-02-25
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Theodore Ernest Yu , Ali Motamedi , Dingkun Du , Sombuddha Chakraborty , Patrick Teterud , Keith Thomas Sanders, Jr.
CPC classification number: H02M3/156 , H02M1/44 , H02M2001/0012
Abstract: In described examples, a switching mode power supply includes an output filter, a driver, a pulse width modulator, and pulse adaptation circuitry. The output filter is configured to provide output of the switching mode power supply. The driver is coupled to the output filter and is configured to switch current to the output filter. The pulse width modulator is configured to generate pulses that control switching of current by the driver. The pulse width modulator includes spread spectrum logic configured to randomize timing of the pulses generated by the pulse width modulator. The pulse adaptation circuitry is configured to identify an instantaneous excursion of the output of the switching mode power supply beyond a predetermined threshold, and to modify the randomized timing of the pulses produced by the pulse width modulator based on the identified instantaneous excursion.
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12.发明申请公开(公告)号：US20170126120A1
公开(公告)日：2017-05-04
申请号：US14926555
申请日：2015-10-29
Applicant: Texas Instruments Incorporated
Inventor： Sombuddha Chakraborty , Yogesh Kumar Ramadass
CPC classification number: H02M3/158 , H02M1/08 , H02M3/06 , H02M3/156 , H02M3/1588 , H02M2001/0009 , H02M2003/072 , H02M2003/1566
Abstract: Switch mode power supplies and integrated circuits are presented to provide a DC output voltage signal using high and low side switches, with a switching control circuit to turn off the high side switch and engage an active shunt circuit to provide a reduced voltage to continue converter operation to accommodate high input voltage transients when the DC input voltage exceeds a threshold voltage without requiring an oversized low side switch for improved efficiency through reduced switching and conduction losses in normal operation.
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公开(公告)号：US20240428987A1
公开(公告)日：2024-12-26
申请号：US18826688
申请日：2024-09-06
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Dongbin Hou , Sombuddha Chakraborty , Kenji Kawano , Jeffrey Morroni , Yuki Sato
Abstract: In one example, an apparatus includes a base, a first inductor, and a second inductor. The first inductor is on the base. The first inductor has a first winding extension, a second winding extension, and a first winding coupled between the first winding extension and the second winding extension, in which at least a part of the second winding extension is vertically between at least a part of the first winding extension and the base. Also, the second inductor is on the base. The second inductor has a third winding extension, a fourth winding extension, and a second winding coupled between the third winding extension and the fourth winding extension, in which at least a part of the fourth winding extension is vertically between at least a part of the third winding extension and the base, and the second winding is laterally adjacent to the first winding.
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公开(公告)号：US11575314B2
公开(公告)日：2023-02-07
申请号：US17334651
申请日：2021-05-28
Applicant: Texas Instruments Incorporated
Inventor： Saad Pervaiz , Sombuddha Chakraborty , Philomena Brady , Laszlo Balogh
Abstract: A controller for a boost power factor correction (PFC) converter. The controller is configured to operate the boost PFC converter in multiple operating modes, including a continuous conduction mode (CCM), a transition mode (TM), and a hybrid mode in which the controller operates the converter in both CCM and TM within a same line cycle. An example controller includes a current control loop and a mode transition circuit. The current control loop is configured to compute an inductor current for each of first and second operation modes, based on a current sample taken, for example, during a boost synchronous rectifier conduction period of the converter. The mode transition circuit includes digital logic circuitry and is configured to generate a pulse indicating that one, two or all three of: zero-voltage switching (ZVS) has been achieved; the synchronous rectifier conduction period is active; and/or one of TM or hybrid mode is active.
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公开(公告)号：US20220393574A1
公开(公告)日：2022-12-08
申请号：US17334651
申请日：2021-05-28
Applicant: Texas Instruments Incorporated
Inventor： Saad Pervaiz , Sombuddha Chakraborty , Philomena Brady , Laszlo Balogh
Abstract: A controller for a boost power factor correction (PFC) converter. The controller is configured to operate the boost PFC converter in multiple operating modes, including a continuous conduction mode (CCM), a transition mode (TM), and a hybrid mode in which the controller operates the converter in both CCM and TM within a same line cycle. An example controller includes a current control loop and a mode transition circuit. The current control loop is configured to compute an inductor current for each of first and second operation modes, based on a current sample taken, for example, during a boost synchronous rectifier conduction period of the converter. The mode transition circuit includes digital logic circuitry and is configured to generate a pulse indicating that one, two or all three of: zero-voltage switching (ZVS) has been achieved; the synchronous rectifier conduction period is active; and/or one of TM or hybrid mode is active.
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Patent Agency Ranking
公开(公告)号：US11362587B2
公开(公告)日：2022-06-14
申请号：US15858640
申请日：2017-12-29
Applicant: Texas Instruments Incorporated
Inventor： Orlando Lazaro , Kevin Scoones , Alvaro Aguilar , Jeffrey Anthony Morroni , Sombuddha Chakraborty
Abstract: In described examples of methods and control circuitry to control a multi-level power conversion system, the control circuitry generates PWM signals having a duty cycle to control an output signal. The duty cycle is adjustable in different switching cycles. States of the system's switches are adjustable in one or more intervals within the switching cycles. In response to a voltage across a capacitor of the system being outside a non-zero voltage range, the control circuitry adjusts states of the switches in two intervals to discharge or charge the capacitor in a given switching cycle.
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公开(公告)号：US20210313891A1
公开(公告)日：2021-10-07
申请号：US16840087
申请日：2020-04-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Sombuddha Chakraborty , Hakan Oner , Yogesh Kumar Ramadass
Abstract: Described systems, methods, and circuitries use an interleaved multi-level converter to convert an input signal received at an input node into an output signal at an output node. In one example, a power conversion system includes a first multi-level switching circuit, a second multi-level switching circuit, and a control circuit. The first multi-level switching circuit and the second multi-level switching circuit are coupled to a switching node, the input node, and a reference node. The control circuit is configured to generate, based on the output signal, switching control signals as pulse width modulated signals having a duty cycle to control the output signal and provide the switching control signals to the first multi-level switching circuit and the second multi-level switching circuit.
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18.发明授权公开(公告)号：US10833585B2
公开(公告)日：2020-11-10
申请号：US16207051
申请日：2018-11-30
Applicant: Texas Instruments Incorporated
Inventor： Yichao Tang , Sombuddha Chakraborty
Abstract: Described herein is a technology for implementing a scalable SCIB regulator for high conversion step down application. Particularly, the SCIB is configured to include stacked input switch circuits with parallel-connected output switch circuits. The input switch circuits are stacked with or without DC shift switch circuits in between. Furthermore, the input voltage is stepped down to a biasing voltage by input switch circuits and then is regulated to one or more output voltages having one or more independent and predetermined values by output switch circuits. The input switch circuits, output switch circuits and DC shift switch circuits can be modified for scalable power capability and ease of control and manufacturing.
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公开(公告)号：US20190058385A1
公开(公告)日：2019-02-21
申请号：US15858640
申请日：2017-12-29
Applicant: Texas Instruments Incorporated
Inventor： Orlando Lazaro , Kevin Scoones , Alvaro Aguilar , Jeffrey Anthony Morroni , Sombuddha Chakraborty
Abstract: In described examples of methods and control circuitry to control a multi-level power conversion system, the control circuitry generates PWM signals having a duty cycle to control an output signal. The duty cycle is adjustable in different switching cycles. States of the system's switches are adjustable in one or more intervals within the switching cycles. In response to a voltage across a capacitor of the system being outside a non-zero voltage range, the control circuitry adjusts states of the switches in two intervals to discharge or charge the capacitor in a given switching cycle.
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公开(公告)号：US12087498B2
公开(公告)日：2024-09-10
申请号：US17405017
申请日：2021-08-17
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Dongbin Hou , Sombuddha Chakraborty , Kenji Kawano , Jeffrey Morroni , Yuki Sato
CPC classification number: H01F27/346 , H01F27/022 , H01F27/24 , H01F27/2847 , H01F41/005 , H02M3/1584 , H02M3/1586
Abstract: A device includes a first inductor and a second inductor reversely coupled with the first inductor. The first and second inductors have overlapping windings. The device also includes a housing for the first and second inductor. The housing is filled with a magnetic molding compound.
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