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1. 发明授权

US11464093B2 Single power phase buck and boost converters 有权
公开(公告)号：US11464093B2
公开(公告)日：2022-10-04
申请号：US17363768
申请日：2021-06-30
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Tuan Van Tran , Vahid Yousefzadeh
IPC分类号： H05B45/10 , H05B45/375 , H05B45/38 , H05B45/325
摘要： In examples, an apparatus includes a transistor, a switch, a diode, a capacitor, a voltage divider, a second transistor, a resistor, and a controller. The transistor has a transistor drain, a transistor source, and a transistor gate. The switch is adapted to couple a power supply to the transistor drain through an inductor. The diode has a cathode and an anode, the diode cathode coupled to the transistor drain. The capacitor is coupled between the diode anode and ground. The voltage divider is coupled between the diode anode and ground and having a voltage divider output. The second transistor has a second transistor source and a second transistor gate. The resistor is coupled between the diode anode and the second transistor source. The controller is coupled to the transistor gate, the transistor source, the voltage divider output, the diode anode, the second transistor gate, and the second transistor source.

2. 发明申请

US20170325300A1 Configurable Switch Array 审中-公开
公开(公告)号：US20170325300A1
公开(公告)日：2017-11-09
申请号：US15587995
申请日：2017-05-05
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Michael James Drake , Daniel Ross Herrington , Sumeet Prakash Kulkarni , Vahid Yousefzadeh , James Michael Patterson , James Harbison Masson
IPC分类号： H05B33/08 , H02H7/20 , H03K17/56
CPC分类号： H05B33/089 , H02H7/20 , H02H9/041 , H05B33/0815 , H05B33/083 , H05B33/0845 , H05B33/0893
摘要： A light emitting diode system allows for high current end user LED matrix applications while mitigating internal damage to control circuitry that may be caused by excess current flow. In one example, multiple switches operate in parallel across an LED. When an overvoltage condition is detected in a first switch, a logic circuit determines those switches programmed to operate in parallel and causes them to conduct current. This reduces the amount of current flowing through any one switch and mitigates harm to the device. The parallel configuration of switches may be driven by a single pulse width modulated current. This allows the drive current to be divided between parallel transistors, limiting the damaging effects that can be caused by high currents flowing through the transistors.

3. 发明授权

US09276475B2 Switched mode assisted linear regulator with decoupled output impedance and signal path bandwidth 有权
标题翻译：开关模式辅助线性稳压器，具有去耦输出阻抗和信号路径带宽
公开(公告)号：US09276475B2
公开(公告)日：2016-03-01
申请号：US13963407
申请日：2013-08-09
申请人： Texas Instruments Incorporated
发明人： Carsten Barth , John Hoversten , Steven Berg , Vahid Yousefzadeh , Arie Van Staveren , Bert Helleman
IPC分类号： H02M3/158 , H02M1/00 , H02M3/156
CPC分类号： H02M3/1584 , G01F1/00 , H02M3/1588 , H02M5/293 , H02M2001/0045 , H02M2003/1566 , H03F1/0227 , H03F3/00 , H03F3/2173 , H03F2200/432 , Y02B70/1466
摘要： A switched mode assisted linear (SMAL) amplifier/regulator architecture can be configured to supply regulated power to a dynamic load, such as an RF power amplifier. Embodiments of a SMAL regulator can include a linear amplifier and a switched mode converter parallel coupled at a supply node, and configured such that the amplifier sets load voltage, while the amplifier and the switched converter are cooperatively controlled to supply load current. The amplifier can include separate feedback loops: an external relatively lower speed feedback loop for controlling signal path bandwidth, and an internal relatively higher speed feedback loop for controlling output impedance bandwidth of the linear amplifier. The linear amplifier can be AC coupled to the supply node, and the switched converter can be configured with a capacitive charge control loop that controls the switched converter to effectively control the amplifier to provide capacitive charge control.
摘要翻译：开关模式辅助线性（SMAL）放大器/调节器架构可以配置为向动态负载（例如RF功率放大器）提供稳压电源。 SMAL调节器的实施例可以包括在供电节点处并联耦合的线性放大器和开关模式转换器，并且被配置为使得放大器设置负载电压，同时协调地控制放大器和开关转换器以提供负载电流。放大器可以包括单独的反馈回路：用于控制信号路径带宽的外部相对较低速度的反馈回路，以及用于控制线性放大器的输出阻抗带宽的内部相对较高速度的反馈回路。线性放大器可以交流耦合到电源节点，并且开关转换器可以配置有电容性电荷控制环路，其控制开关转换器以有效地控制放大器以提供电容充电控制。

4. 发明申请

US20190306938A1 Configurable Switch Array 审中-公开
公开(公告)号：US20190306938A1
公开(公告)日：2019-10-03
申请号：US16380830
申请日：2019-04-10
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Michael James Drake , Daniel Ross Herrington , Sumeet Prakash Kulkarni , Vahid Yousefzadeh , James Michael Patterson , James Harbison Masson
IPC分类号： H05B33/08 , H02H9/04
摘要： A light emitting diode system allows for high current end user LED matrix applications while mitigating internal damage to control circuitry that may be caused by excess current flow. In one example, multiple switches operate in parallel across an LED. When an overvoltage condition is detected in a first switch, a logic circuit determines those switches programed to operate in parallel and causes them to conduct current. This reduces the amount of current flowing through any one switch and mitigates harm to the device. The parallel configuration of switches may be driven by a single pulse width modulated current. This allows the drive current to be divided between parallel transistors, limiting the damaging effects that can be caused by high currents flowing through the transistors.

5. 发明申请

US20140125299A1 SWITCHED MODE ASSISTED LINEAR REGULATOR WITH DECOUPLED OUTPUT IMPEDANCE AND SIGNAL PATH BANDWIDTH 有权
标题翻译：具有解耦输出阻抗和信号路径带宽的开关模式辅助线性稳压器
公开(公告)号：US20140125299A1
公开(公告)日：2014-05-08
申请号：US13963407
申请日：2013-08-09
申请人： Texas Instruments Incorporated
发明人： Carsten Barth , John Hoversten , Steven Berg , Vahid Yousefzadeh , Arie Van Staveren , Bert Helleman
IPC分类号： H02M3/158
CPC分类号： H02M3/1584 , G01F1/00 , H02M3/1588 , H02M5/293 , H02M2001/0045 , H02M2003/1566 , H03F1/0227 , H03F3/00 , H03F3/2173 , H03F2200/432 , Y02B70/1466
摘要： The disclosed switched mode assisted linear (SMAL) amplifier/regulator architecture may be configured as a SMAL regulator to supply power to a dynamic load, such as an RF power amplifier. Embodiments of a SMAL regulator include configurations in which a linear amplifier and a switched mode converter (switcher) parallel coupled at a supply node, and configured such that the amplifier sets load voltage, while the amplifier and the switched mode converter are cooperatively controlled to supply load current. In one embodiment, the amplifier includes separate feedback loops: an external relatively lower speed feedback loop may be configured for controlling signal path bandwidth, and an internal relatively higher speed feedback loop may be configured for controlling output impedance bandwidth of the linear amplifier. In another embodiment, the linear amplifier is AC coupled to the supply node, and the switched converter is configured with a capacitive charge control loop that controls the switched converter to effectively control the amplifier to provide capacitive charge control.
摘要翻译：所公开的开关模式辅助线性（SMAL）放大器/调节器架构可以被配置为SMAL调节器，以向诸如RF功率放大器之类的动态负载供电。 SMAL调节器的实施例包括其中线性放大器和开关模式转换器（切换器）并联耦合在电源节点处并且被配置为使得放大器设置负载电压的配置，同时放大器和开关模式转换器协同控制以供应负载电流。在一个实施例中，放大器包括单独的反馈回路：可以配置外部相对较低速度的反馈回路用于控制信号路径带宽，并且可以配置内部相对较高速度的反馈回路以控制线性放大器的输出阻抗带宽。在另一个实施例中，线性放大器AC耦合到电源节点，并且开关转换器配置有电容性电荷控制环路，其控制开关转换器以有效地控制放大器以提供电容充电控制。

6. 发明授权

US10904977B2 Overvoltage detection circuit with first and longer second response times 有权
公开(公告)号：US10904977B2
公开(公告)日：2021-01-26
申请号：US16380830
申请日：2019-04-10
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Michael James Drake , Daniel Ross Herrington , Sumeet Prakash Kulkarni , Vahid Yousefzadeh , James Michael Patterson , James Harbison Masson
IPC分类号： H05B45/48 , H02H9/04 , H05B45/58
摘要： A light emitting diode system allows for high current end user LED matrix applications while mitigating internal damage to control circuitry that may be caused by excess current flow. In one example, multiple switches operate in parallel across an LED. When an overvoltage condition is detected in a first switch, a logic circuit determines those switches programmed to operate in parallel and causes them to conduct current. This reduces the amount of current flowing through any one switch and mitigates harm to the device. The parallel configuration of switches may be driven by a single pulse width modulated current. This allows the drive current to be divided between parallel transistors, limiting the damaging effects that can be caused by high currents flowing through the transistors.

7. 发明授权

US10306731B2 Configurable switch array 有权
公开(公告)号：US10306731B2
公开(公告)日：2019-05-28
申请号：US15587995
申请日：2017-05-05
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Michael James Drake , Daniel Ross Herrington , Sumeet Prakash Kulkarni , Vahid Yousefzadeh , James Michael Patterson , James Harbison Masson
IPC分类号： H05B33/08 , H02H7/20
摘要： A light emitting diode system allows for high current end user LED matrix applications while mitigating internal damage to control circuitry that may be caused by excess current flow. In one example, multiple switches operate in parallel across an LED. When an overvoltage condition is detected in a first switch, a logic circuit determines those switches programmed to operate in parallel and causes them to conduct current. This reduces the amount of current flowing through any one switch and mitigates harm to the device. The parallel configuration of switches may be driven by a single pulse width modulated current. This allows the drive current to be divided between parallel transistors, limiting the damaging effects that can be caused by high currents flowing through the transistors.

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