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公开(公告)号：US20250048721A1
公开(公告)日：2025-02-06
申请号：US18228385
申请日：2023-07-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Eung Jung Kim , Thomas Grebs , Sunglyong Kim , Sungho Beck , Wei Fu , Xiaochun Zhao , Arjun Pankaj
IPC: H01L29/78 , H01L27/06 , H01L27/092 , H01L29/06 , H01L29/40 , H01L29/66 , H01L29/786
Abstract: Described examples include an integrated circuit having first and second transistors. The first transistor includes a plurality of trenches extending into a semiconductor substrate and a plurality of source regions, each source region located between a pair of adjacent trenches. A first source terminal is connected to the plurality of source regions. The second transistor includes a central source region between a pair of the trenches and a second source terminal connected to the central source region. The second source terminal is conductively isolated from the first source terminal.
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公开(公告)号：US10756731B2
公开(公告)日：2020-08-25
申请号：US16279422
申请日：2019-02-19
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Richard Turkson , Sungho Beck , Jae Won Choi , Johnny Klarenbeek
IPC: H03K17/693
Abstract: A power source multiplexer includes a first switch circuit connected between a first input voltage source node and an output voltage node. A second switch circuit is connected between a second input voltage source node and the output voltage node. A driver circuit is configured to provide a steady-state current to drive one of the first or second switch circuits to electrically connect the respective input voltage source node to the output voltage node. A boost circuit is configured to boost the steady-state current for a switching time interval when switching from one of the input voltage source nodes being connected to the output node to the other of the input voltage source nodes being connected to the output voltage node.
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公开(公告)号：US09813053B2
公开(公告)日：2017-11-07
申请号：US15198618
申请日：2016-06-30
Applicant: Texas Instruments Incorporated
Inventor： Sungho Beck , Johnny Klarenbeek
IPC: H03B1/00 , H03K17/081 , H02M3/07
CPC classification number: H03K17/08104 , H02M3/07
Abstract: A switch for controlling a power supply and a method of operating the switch are disclosed. The switch includes a first transistor having a drain and a source connected between VIN and VOUT and a gate connected to be driven to a first voltage that is greater than VIN, an external capacitor operable, when connected to the gate of the first transistor, to control a rise time of VOUT, and a circuit coupled to the gate of the first transistor and to the external capacitor, the circuit connected to couple the external capacitor to the gate of the first transistor responsive to an enable signal turning on and to uncouple the external capacitor from the gate of the first transistor responsive to the voltage on the gate reaching the first voltage.
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公开(公告)号：US10700675B2
公开(公告)日：2020-06-30
申请号：US16544477
申请日：2019-08-19
Applicant: Texas Instruments Incorporated
Inventor： Jae Won Choi , Sungho Beck , Richard Turkson , Johnny Klarenbeek , Bixia Li
Abstract: Channel switchover power multiplexer circuits, and methods of operating the same are disclosed. An example power multiplexer a first transistor coupled to a first input, a second transistor coupled to the first transistor to couple a first voltage at the first input to an output, a third transistor coupled to a second input, a fourth transistor coupled to the third transistor to couple a second voltage at the second input to the output, a diode amplifier to provide a third voltage to a gate of the first transistor to block a reverse current, and a soft-start amplifier to provide a fourth voltage to a gate of the fourth transistor to turn on (with adjustable VOUT ramp rate) the fourth transistor with a constant ramp rate.
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公开(公告)号：US10432175B2
公开(公告)日：2019-10-01
申请号：US16119457
申请日：2018-08-31
Applicant: Texas Instruments Incorporated
Inventor： Jae Won Choi , Sungho Beck , Abidur Rahman
Abstract: Apparatus, devices, and systems to provide a low quiescent current load switch are disclosed. A disclosed load switch circuit includes a transconductor to convert a voltage to a current input to a transistor gate, the current input to the transistor gate to control the gate to deliver power to a load from a power supply. The example circuit includes a resistor to provide power from a charge pump to the gate as controlled by the transconductor. A disclosed apparatus includes a driver to control a gate of a transistor, the gate to enable the transistor to deliver power to a load from a power supply when the gate is activated, and a gate slope control to control a rate of change over time of a voltage associated with the gate to activate the gate and to disable the driver when the gate is activated.
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Patent Agency Ranking
公开(公告)号：US10432184B1
公开(公告)日：2019-10-01
申请号：US16217658
申请日：2018-12-12
Applicant: Texas Instruments Incorporated
Inventor： Jae Won Choi , Sungho Beck , Richard Turkson , Johnny Klarenbeek , Bixia Li
Abstract: Channel switchover power multiplexer circuits, and methods of operating the same are disclosed. An example power multiplexer a first transistor coupled to a first input, a second transistor coupled to the first transistor to couple a first voltage at the first input to an output, a third transistor coupled to a second input, a fourth transistor coupled to the third transistor to couple a second voltage at the second input to the output, a diode amplifier to provide a third voltage to a gate of the first transistor to block a reverse current, and a soft-start amplifier to provide a fourth voltage to a gate of the fourth transistor to turn on (with adjustable VOUT ramp rate) the fourth transistor with a constant ramp rate.
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公开(公告)号：US20130314061A1
公开(公告)日：2013-11-28
申请号：US13722056
申请日：2012-12-20
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： H. Pooya Forghani-zadeh , Luis Alberto Huertas-Sanchez , Sungho Beck
IPC: G05F1/46
CPC classification number: G05F1/46 , H02M3/1588 , H02M2001/0019 , H02M2001/0022 , H02M2001/0032 , H02M2001/0048 , Y02B70/1466 , Y02B70/1491 , Y02B70/16
Abstract: One embodiment of the present invention includes a power regulator system. The system includes a power stage configured to provide an output voltage to a load in response to an input voltage and a control signal. The system also includes a feedback system that receives the input voltage and is configured to generate the control signal based on the output voltage. The system further includes a load detector configured to determine a state of the load and to set the power to the feedback system based on determining the state of the load.
Abstract translation: 本发明的一个实施例包括功率调节器系统。 该系统包括功率级，其配置为响应于输入电压和控制信号向负载提供输出电压。 该系统还包括接收输入电压并被配置为基于输出电压产生控制信号的反馈系统。 该系统还包括负载检测器，其被配置为基于确定负载的状态来确定负载的状态并将功率设置到反馈系统。
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公开(公告)号：US20200052683A1
公开(公告)日：2020-02-13
申请号：US16544477
申请日：2019-08-19
Applicant: Texas Instruments Incorporated
Inventor： Jae Won Choi , Sungho Beck , Richard Turkson , Johnny Klarenbeek , Bixia Li
Abstract: Channel switchover power multiplexer circuits, and methods of operating the same are disclosed. An example power multiplexer a first transistor coupled to a first input, a second transistor coupled to the first transistor to couple a first voltage at the first input to an output, a third transistor coupled to a second input, a fourth transistor coupled to the third transistor to couple a second voltage at the second input to the output, a diode amplifier to provide a third voltage to a gate of the first transistor to block a reverse current, and a soft-start amplifier to provide a fourth voltage to a gate of the fourth transistor to turn on (with adjustable VOUT ramp rate) the fourth transistor with a constant ramp rate.
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公开(公告)号：US20190214973A1
公开(公告)日：2019-07-11
申请号：US16119457
申请日：2018-08-31
Applicant: Texas Instruments Incorporated
Inventor： Jae Won Choi , Sungho Beck , Abidur Rahman
CPC classification number: H03K3/012 , H02M3/26 , H03K17/04123 , H03K17/165 , H03K2217/0036 , H03K2217/0081
Abstract: Apparatus, devices, and systems to provide a low quiescent current load switch are disclosed. A disclosed load switch circuit includes a transconductor to convert a voltage to a current input to a transistor gate, the current input to the transistor gate to control the gate to deliver power to a load from a power supply. The example circuit includes a resistor to provide power from a charge pump to the gate as controlled by the transconductor. A disclosed apparatus includes a driver to control a gate of a transistor, the gate to enable the transistor to deliver power to a load from a power supply when the gate is activated, and a gate slope control to control a rate of change over time of a voltage associated with the gate to activate the gate and to disable the driver when the gate is activated.
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公开(公告)号：US20170244403A1
公开(公告)日：2017-08-24
申请号：US15198618
申请日：2016-06-30
Applicant: Texas Instruments Incorporated
Inventor： Sungho Beck , Johnny Klarenbeek
IPC: H03K17/081 , H02M3/07
CPC classification number: H03K17/08104 , H02M3/07
Abstract: A switch for controlling a power supply and a method of operating the switch are disclosed. The switch includes a first transistor having a drain and a source connected between VIN and VOUT and a gate connected to be driven to a first voltage that is greater than VIN, an external capacitor operable, when connected to the gate of the first transistor, to control a rise time of VOUT, and a circuit coupled to the gate of the first transistor and to the external capacitor, the circuit connected to couple the external capacitor to the gate of the first transistor responsive to an enable signal turning on and to uncouple the external capacitor from the gate of the first transistor responsive to the voltage on the gate reaching the first voltage.
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