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公开(公告)号：US11048291B2
公开(公告)日：2021-06-29
申请号：US16218664
申请日：2018-12-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ruochen Zhang , Wei Xu , Hongyan Wu , Qingjie Ma
Abstract: A system for a network of one or more off-board subsystems is provided for controlling automobile subsystems such as vehicle lighting. Such a system may be compatible with a universal asynchronous receiver transmitter (UART) interface and it may address timing issues by using a protocol having a synchronization frame (sync frame) such that a clock signal may be recovered from the sync frame sent by an off-board master device 202, such as a microcontroller unit 208, to a satellite/slave 211 device. Such a protocol permits elimination of a crystal clock oscillator and phase-locked loop located at satellite, thereby dispensing with an otherwise significant cost.
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公开(公告)号：US20200161293A1
公开(公告)日：2020-05-21
申请号：US16751491
申请日：2020-01-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Qingjie Ma , Wei Xu , Jingwei Xu , Yang Wang
IPC: H01L27/02 , H03K17/081 , H03K17/0812
Abstract: In a described example, an apparatus includes: a first metal oxide semiconductor field effect transistor (MOSFET) coupled between a first input terminal for receiving a supply voltage and an output terminal for coupling to a load, and having a first gate terminal; an enable terminal coupled to the first gate terminal for receiving an enable signal; a first current mirror coupled between the first input terminal and a first terminal of a first series resistor and having an input coupled to the first gate terminal; and a second MOSFET coupled between the first gate terminal and the output terminal, and having a second gate terminal coupled to the first terminal of the first series resistor, the first series resistor having a second terminal coupled to the output terminal.
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公开(公告)号：US11659638B2
公开(公告)日：2023-05-23
申请号：US17463239
申请日：2021-08-31
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Yan He , Yang Wang , Haibin Shao , Shang Ding , Wei Xu , Qingjie Ma
IPC: H05B45/325 , H05B45/34 , G05B23/02 , G09G3/32
CPC classification number: H05B45/325 , G05B23/0218 , G09G3/32 , H05B45/34 , G09G2310/0267 , G09G2320/0219
Abstract: A light emitting diode (LED) matrix driver includes a scan line switch coupled to a scan line of an LED matrix and adapted to be coupled to a signal ground; a first voltage clamp coupled to the scan line switch and the scan line; and a second voltage clamp coupled to the scan line.
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4.发明授权公开(公告)号：US11423828B2
公开(公告)日：2022-08-23
申请号：US17135906
申请日：2020-12-28
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Haibin Shao , Yan He , Qingjie Ma , Wei Xu
Abstract: A light-emitting diode (LED) display driver circuit includes: a set of channels, each channel of the set of channels having a respective current control circuit; and control circuitry coupled to each respective current control circuit and configured to adjust a respective control signal to each respective current control circuit responsive to an LED brightness estimate for each channel of the set of channels.
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公开(公告)号：US10586791B2
公开(公告)日：2020-03-10
申请号：US16035007
申请日：2018-07-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Qingjie Ma , Wei Xu , Jingwei Xu , Yang Wang
IPC: H03K17/0812 , H01L27/02 , H03K17/081 , H03K17/08
Abstract: In a described example, an apparatus includes: a first metal oxide semiconductor field effect transistor (MOSFET) coupled between a first input terminal for receiving a supply voltage and an output terminal for coupling to a load, and having a first gate terminal; an enable terminal coupled to the first gate terminal for receiving an enable signal; a first current mirror coupled between the first input terminal and a first terminal of a first series resistor and having an input coupled to the first gate terminal; and a second MOSFET coupled between the first gate terminal and the output terminal, and having a second gate terminal coupled to the first terminal of the first series resistor, the first series resistor having a second terminal coupled to the output terminal.
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Patent Agency Ranking
公开(公告)号：US20190279977A1
公开(公告)日：2019-09-12
申请号：US16035007
申请日：2018-07-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Qingjie Ma , Wei Xu , Jingwei Xu , Yang Wang
IPC: H01L27/02 , H03K17/081 , H03K17/0812
Abstract: In a described example, an apparatus includes: a first metal oxide semiconductor field effect transistor (MOSFET) coupled between a first input terminal for receiving a supply voltage and an output terminal for coupling to a load, and having a first gate terminal; an enable terminal coupled to the first gate terminal for receiving an enable signal; a first current mirror coupled between the first input terminal and a first terminal of a first series resistor and having an input coupled to the first gate terminal; and a second MOSFET coupled between the first gate terminal and the output terminal, and having a second gate terminal coupled to the first terminal of the first series resistor, the first series resistor having a second terminal coupled to the output terminal.
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公开(公告)号：US20210104515A1
公开(公告)日：2021-04-08
申请号：US17122682
申请日：2020-12-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Qingjie Ma , Wei Xu , Jingwei Xu , Yang Wang
IPC: H01L27/02 , H03K17/0812 , H03K17/081
Abstract: In a described example, an apparatus includes: a first metal oxide semiconductor field effect transistor (MOSFET) coupled between a first input terminal for receiving a supply voltage and an output terminal for coupling to a load, and having a first gate terminal; an enable terminal coupled to the first gate terminal for receiving an enable signal; a first current mirror coupled between the first input terminal and a first terminal of a first series resistor and having an input coupled to the first gate terminal; and a second MOSFET coupled between the first gate terminal and the output terminal, and having a second gate terminal coupled to the first terminal of the first series resistor, the first series resistor having a second terminal coupled to the output terminal.
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公开(公告)号：US20200042032A1
公开(公告)日：2020-02-06
申请号：US16218664
申请日：2018-12-13
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ruochen Zhang , Wei Xu , Hongyan Wu , Qingjie Ma
Abstract: A system for a network of one or more off-board subsystems is provided for controlling automobile subsystems such as vehicle lighting. Such a system may be compatible with a universal asynchronous receiver transmitter (UART) interface and it may address timing issues by using a protocol having a synchronization frame (sync frame) such that a clock signal may be recovered from the sync frame sent by an off-board master device 202, such as a microcontroller unit 208, to a satellite/slave 211 device. Such a protocol permits elimination of a crystal clock oscillator and phase-locked loop located at satellite, thereby dispensing with an otherwise significant cost.
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公开(公告)号：US11367719B2
公开(公告)日：2022-06-21
申请号：US17122682
申请日：2020-12-15
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Qingjie Ma , Wei Xu , Jingwei Xu , Yang Wang
IPC: H01L27/02 , H03K17/0812 , H03K17/081 , H03K17/08
Abstract: In a described example, an apparatus includes: a first metal oxide semiconductor field effect transistor (MOSFET) coupled between a first input terminal for receiving a supply voltage and an output terminal for coupling to a load, and having a first gate terminal; an enable terminal coupled to the first gate terminal for receiving an enable signal; a first current mirror coupled between the first input terminal and a first terminal of a first series resistor and having an input coupled to the first gate terminal; and a second MOSFET coupled between the first gate terminal and the output terminal, and having a second gate terminal coupled to the first terminal of the first series resistor, the first series resistor having a second terminal coupled to the output terminal.
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公开(公告)号：US10896905B2
公开(公告)日：2021-01-19
申请号：US16751491
申请日：2020-01-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Qingjie Ma , Wei Xu , Jingwei Xu , Yang Wang
IPC: H03K17/0812 , H01L27/02 , H03K17/081 , H03K17/08
Abstract: In a described example, an apparatus includes: a first metal oxide semiconductor field effect transistor (MOSFET) coupled between a first input terminal for receiving a supply voltage and an output terminal for coupling to a load, and having a first gate terminal; an enable terminal coupled to the first gate terminal for receiving an enable signal; a first current mirror coupled between the first input terminal and a first terminal of a first series resistor and having an input coupled to the first gate terminal; and a second MOSFET coupled between the first gate terminal and the output terminal, and having a second gate terminal coupled to the first terminal of the first series resistor, the first series resistor having a second terminal coupled to the output terminal.
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