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公开(公告)号：US11601058B2
公开(公告)日：2023-03-07
申请号：US16733479
申请日：2020-01-03
Applicant: Texas Instruments Incorporated
Inventor： Kuang-Yao Cheng , Wenkai Wu , Preetam Tadeparthy , Nancy Zhang , Dattatreya Baragur Suryanarayana , Naga Venkata Prasadu Mangina
Abstract: A circuit for a multi-phase power regulator including a power stage with a first phase and a second phase, the circuit including phase management circuitry coupled to the first phase and the second phase to control the first phase and the second phase, a first comparator coupled to an output of the multi-phase power regulator to compare a value of the output of the multi-phase power regulator to a first threshold value to produce a first comparison result, and phase shedding circuitry coupled to the first comparator and the phase management circuitry to control the phase management circuitry to activate or deactivate the second phase based at least partially on the first comparison result.
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公开(公告)号：US20200348706A1
公开(公告)日：2020-11-05
申请号：US16399341
申请日：2019-04-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kuang-Yao Cheng , Wenkai Wu , Preetam Tadeparthy , Shuhua Zhang
Abstract: A voltage regulator system includes a switch system including a power switch to conduct an output current through an inductor based on an input voltage and a switching signal to generate an output voltage at a load. A feedback system generates a PWM signal based on the output voltage and based on a variable reference voltage. A gate driver system generates the switching signal based on the PWM signal. The gate driver system controls the switch system to increase the output voltage at output voltage slopes in each of startup stages during startup of the voltage regulator system. A sampling system samples the output current and the output voltage during the startup of the voltage regulator system to measure each slope of the output voltage slopes at each of the respective startup stages during the startup of the voltage regulator system.
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公开(公告)号：US10560023B2
公开(公告)日：2020-02-11
申请号：US15849504
申请日：2017-12-20
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kuang-Yao Cheng , Wenkai Wu , Preetam Tadeparthy , Nancy Zhang , Dattatreya Baragur Suryanarayana , Naga Venkata Prasadu Mangina
Abstract: A circuit for a multi-phase power regulator including a power stage with a first phase and a second phase, the circuit including phase management circuitry coupled to the first phase and the second phase to control the first phase and the second phase, a first comparator coupled to an output of the multi-phase power regulator to compare a value of the output of the multi-phase power regulator to a first threshold value to produce a first comparison result, and phase shedding circuitry coupled to the first comparator and the phase management circuitry to control the phase management circuitry to activate or deactivate the second phase based at least partially on the first comparison result.
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公开(公告)号：US10432093B2
公开(公告)日：2019-10-01
申请号：US15790868
申请日：2017-10-23
Applicant: Texas Instruments Incorporated
Inventor： Kuang-Yao Cheng , Wenkai Wu , Yipeng Su
Abstract: A multiphase DC-DC converter includes a first phase circuit including a higher inductance inductor and a second phase circuit including a lower inductance inductor. An output of the inductors are tied together providing a Vout. A phase manager and current sharing (PMCS) block receives a feedback signal from a feedback network coupled between Vout and the PMCS block that receives current feedback from phase circuits. The PMCS block generates driver control signals at a first time when a load is requesting a lower load current for controlling the phase circuits to operate with a first current sharing ratio to provide the lower load current, and at a second time when the load is requesting a higher load current controls the phase circuits to operate at a second current sharing ratio that is different from the first current sharing ratio having a higher average second phase circuit current.
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Patent Agency Ranking
公开(公告)号：US09343962B2
公开(公告)日：2016-05-17
申请号：US13906967
申请日：2013-05-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kuang-Yao Cheng , Hal Chen , Wenkai Wu , Weidong Zhu
CPC classification number: H02M3/156 , H02M3/158 , H02M3/1588 , H02M2001/0025 , H02M2001/0032
Abstract: One embodiment includes a power regulator system. The system includes a switch control stage configured to generate at least one activation signal based on a pulse-width modulation (PWM) signal and to control a respective at least one switch to generate an output voltage. The system also includes a feedback stage configured to generate the PWM signal based on a ramp signal and a feedback voltage that is based on the output voltage. The system further includes a ramp generator stage configured to adaptively generate the ramp signal based on the output voltage and based on the at least one activation signal.
Abstract translation: 一个实施例包括功率调节器系统。 该系统包括开关控制级，其被配置为基于脉宽调制（PWM）信号产生至少一个激活信号，并且控制相应的至少一个开关以产生输出电压。 该系统还包括被配置为基于斜坡信号和基于输出电压的反馈电压产生PWM信号的反馈级。 所述系统还包括斜坡发生器级，其被配置为基于所述输出电压并且基于所述至少一个激活信号自适应地生成所述斜坡信号。
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公开(公告)号：US20200343816A1
公开(公告)日：2020-10-29
申请号：US16396210
申请日：2019-04-26
Applicant: Texas Instruments Incorporated
Inventor： Wenkai Wu , Shishuo Zhao , Weidong Zhu
Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed for regulated hybrid converters. An example apparatus includes an input terminal; an output terminal, a first converter circuit coupled between the input terminal and an intermediate node, the first converter circuit having a first switch node, a second converter circuit coupled between the intermediate node and the output terminal, the second converter circuit having a second switch node; a first inductor coupled between the first switch node and the second switch node, and a second inductor coupled between the second switch node and the output terminal.
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公开(公告)号：US10651741B2
公开(公告)日：2020-05-12
申请号：US16051003
申请日：2018-07-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Wenkai Wu , Shishuo Zhao , Weidong Zhu
Abstract: An apparatus includes first and second power converter stages, each stage having a primary side and a secondary side. The primary side of the first stage includes a switch T1A coupled to a voltage source and a switch T3A coupled to the switch T1A. The primary side of the second stage includes a switch T2A coupled to the switch T3A and a switch T4A coupled to the switch T3A and to the voltage source. The apparatus includes a control circuit to control an on/off time of the switches. The control circuit includes four gate driver controllers to control the on/off time of the switches and a current sharing control section to increase or decrease the on time of a switch based on a comparison of a current through one of multiple output inductors to an average current through the multiple output inductors.
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公开(公告)号：US11353904B2
公开(公告)日：2022-06-07
申请号：US16399341
申请日：2019-04-30
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Kuang-Yao Cheng , Wenkai Wu , Preetam Tadeparthy , Shuhua Zhang
Abstract: A voltage regulator system includes a switch system including a power switch to conduct an output current through an inductor based on an input voltage and a switching signal to generate an output voltage at a load. A feedback system generates a PWM signal based on the output voltage and based on a variable reference voltage. A gate driver system generates the switching signal based on the PWM signal. The gate driver system controls the switch system to increase the output voltage at output voltage slopes in each of startup stages during startup of the voltage regulator system. A sampling system samples the output current and the output voltage during the startup of the voltage regulator system to measure each slope of the output voltage slopes at each of the respective startup stages during the startup of the voltage regulator system.
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公开(公告)号：US10666279B1
公开(公告)日：2020-05-26
申请号：US16287711
申请日：2019-02-27
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Matthew John Ascher Schurmann , Mayank Jain , Wenkai Wu , Preetam Charan Anand Tadeparthy , Kuang-Yao Cheng
IPC: H03M1/12 , H03M1/10 , H03M1/16 , H03K19/173
Abstract: A circuit includes a phase control logic, an analog-to-digital converter (ADC), and digital logic. The phase control logic is configured to couple to a plurality of power phases of a multi-phase power supply. The digital logic is configured to couple to the phase control logic and the ADC, to receive an instruction to operate in a self-calibration mode of operation, receive a first message including a value associated with a calibrated load configured to couple to the plurality of power phases, perform a self-calibration sub-routine for each power phase of the plurality of power phases based at least partially on the received instruction, the received first message, and a signal received from the ADC, and receive a second message instructing the digital logic to store a result of the self-calibration in a memory of the circuit.
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