公开(公告)号：US10910822B2

公开(公告)日：2021-02-02

申请号：US16503113

申请日：2019-07-03

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Bhaskar Ramachandran ,  Dattatreya Baragur Suryanarayana ,  Vishal Gupta

IPC: H02H3/38 ,  H02M3/07 ,  H02J7/34 ,  G01R19/165

Abstract: A system includes a first transistor having a first control input and first and second current terminals. The first current terminal couples to an input voltage node. A second transistor has a second control input and third and fourth current terminals. The third current terminal couples to the second current terminal at a first node. The fourth current terminal couples to an output voltage node. A drive circuit is configured to charge a capacitor maintain the first transistor in an off state responsive to a negative voltage on the input voltage node, and, responsive to a negative voltage on the input voltage node, to cause the charge from the capacitor to be used to turn off the first transistor. The system provides a voltage to a load coupled to the output voltage node.

公开(公告)号：US09627962B2

公开(公告)日：2017-04-18

申请号：US14642735

申请日：2015-03-09

Applicant: Texas Instruments Incorporated

Inventor： Vishal Gupta ,  Ganapathi Shankar

IPC: H03K17/00 ,  H02M3/07 ,  H03K17/0412 ,  H03K17/082 ,  H02M1/00 ,  H03K17/08

CPC classification number: H02M3/07 ,  H02M2001/0029 ,  H02M2001/0048 ,  H03K17/04123 ,  H03K17/0822 ,  H03K2017/0806 ,  H03K2217/0009 ,  H03K2217/0054 ,  Y02B70/1491

Abstract: A fast blocking switch includes, for example, an energy storage device, a first power switch and a second power switch. The energy storage device stores a charge for fast activation of the switches. The first switch is operable for coupling input current to an output terminal in response to the coupling of a potential supplied by the stored charge to a control terminal of the first switch. The second switch is operable for coupling a limited amount of the input current to the output terminal in response to the coupling of a potential supplied by the stored charge to a control terminal of the second switch.

公开(公告)号：US09130552B2

公开(公告)日：2015-09-08

申请号：US14072142

申请日：2013-11-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Vishal Gupta ,  David R. Olson

IPC: H03K5/22 ,  H03K5/15 ,  H02M1/38

CPC classification number: H03K5/15 ,  H02M1/38 ,  H02M3/1588 ,  H02M2001/0012 ,  Y02B70/1466

Abstract: An integrated circuit includes a detector configured to monitor a high-drive signal and a low-drive signal that drives a high-side switch and a low-side switch respectively of an integrated circuit switching regulator. The detector monitors both the rising edge and the trailing edge of each of the high-drive and the low-drive signals respectively to determine a timing overlap between the signals and generates a detection signal indicating a dead-time value proportional to the presence or absence of the timing overlap between the signals. An output circuit can be configured to process the detection signal from the detector to enable a correction of the timing overlap between the signals if timing overlap is detected.

Abstract translation: 集成电路包括检测器，其被配置为监视分别驱动集成电路开关调节器的高侧开关和低边开关的高驱动信号和低驱动信号。 检测器分别监测高驱动信号和低驱动信号中的每一个的上升沿和后沿，以确定信号之间的定时重叠，并产生指示与存在或不存在的死区时间值成比例的死区时间值的检测信号 的信号之间的定时重叠。 输出电路可以被配置为处理来自检测器的检测信号，以便如果检测到定时重叠则能够校正信号之间的定时重叠。

公开(公告)号：US20150123710A1

公开(公告)日：2015-05-07

申请号：US14072142

申请日：2013-11-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Vishal Gupta ,  David R. Olson

IPC: H03K5/15

CPC classification number: H03K5/15 ,  H02M1/38 ,  H02M3/1588 ,  H02M2001/0012 ,  Y02B70/1466

Abstract: An integrated circuit includes a detector configured to monitor a high-drive signal and a low-drive signal that drives a high-side switch and a low-side switch respectively of an integrated circuit switching regulator. The detector monitors both the rising edge and the trailing edge of each of the high-drive and the low-drive signals respectively to determine a timing overlap between the signals and generates a detection signal indicating a dead-time value proportional to the presence or absence of the timing overlap between the signals. An output circuit can be configured to process the detection signal from the detector to enable a correction of the timing overlap between the signals if timing overlap is detected.

Abstract translation: 集成电路包括检测器，其被配置为监视分别驱动集成电路开关调节器的高侧开关和低侧开关的高驱动信号和低驱动信号。 检测器分别监测高驱动信号和低驱动信号中的每一个的上升沿和后沿，以确定信号之间的定时重叠，并产生指示与存在或不存在的死区时间值成比例的死区时间值的检测信号 的信号之间的定时重叠。 输出电路可以被配置为处理来自检测器的检测信号，以便如果检测到定时重叠则能够校正信号之间的定时重叠。

公开(公告)号：US11545418B2

公开(公告)日：2023-01-03

申请号：US16369795

申请日：2019-03-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ankur Chauhan ,  Paragkumar Chaudhari ,  Vishal Gupta

IPC: H02H5/04 ,  H01L23/495 ,  H01L21/50 ,  H01L21/60

Abstract: A device includes a relative temperature detector configured to determine a temperature difference between a device temperature sensed near a switch device and an ambient temperature sensed outside the switch device. The relative temperature detector is configured to generate a relative temperature output signal based on comparing the temperature difference to a relative temperature threshold. A power detector is configured to generate a power level signal based on comparing an indication of switch power of the switch device to a power threshold. The power level signal specifies whether the indication of switch power is above or below the power threshold. A thermal capacity control is configured to disable the switch device based on the power level signal specifying that the indication of switch power is above the power threshold and based on the relative temperature output signal indicating the temperature difference is above the relative temperature threshold.

公开(公告)号：US11329472B2

公开(公告)日：2022-05-10

申请号：US16428493

申请日：2019-05-31

Applicant: Texas Instruments Incorporated

Inventor： Subrato Roy ,  Ankur Chauhan ,  Vishal Gupta

IPC: H02H1/04 ,  H02H7/20 ,  H02H3/28 ,  H02H1/00

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for preventing undesired triggering of short circuit or over current protection. An example apparatus includes an output terminal; a voltage detection device coupled to a voltage detection input terminal and the output terminal and including a voltage detection output coupled to a logic gate first input terminal; a pulse extender coupled between a logic gate output and a selecting node; a multiplexer coupled to the selecting node and configured to be coupled to a first protection circuit, a second protection circuit, and a driver; and a switch coupled between an input terminal and the output terminal and including a switch gate terminal coupled to the driver.

公开(公告)号：US20200028345A1

公开(公告)日：2020-01-23

申请号：US16428493

申请日：2019-05-31

Applicant: Texas Instruments Incorporated

Inventor： Subrato Roy ,  Ankur Chauhan ,  Vishal Gupta

IPC: H02H1/04 ,  H02H1/00 ,  H02H3/28 ,  H02H7/20

Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for preventing undesired triggering of short circuit or over current protection. An example apparatus includes an output terminal; a voltage detection device coupled to a voltage detection input terminal and the output terminal and including a voltage detection output coupled to a logic gate first input terminal; a pulse extender coupled between a logic gate output and a selecting node; a multiplexer coupled to the selecting node and configured to be coupled to a first protection circuit, a second protection circuit, and a driver; and a switch coupled between an input terminal and the output terminal and including a switch gate terminal coupled to the driver.

公开(公告)号：US20160268892A1

公开(公告)日：2016-09-15

申请号：US14642735

申请日：2015-03-09

Applicant: Texas Instruments Incorporated

Inventor： Vishal Gupta ,  Ganapathi Shankar

IPC: H02M3/07 ,  H03K17/687

CPC classification number: H02M3/07 ,  H02M2001/0029 ,  H02M2001/0048 ,  H03K17/04123 ,  H03K17/0822 ,  H03K2017/0806 ,  H03K2217/0009 ,  H03K2217/0054 ,  Y02B70/1491

Abstract: A fast blocking switch includes, for example, an energy storage device, a first power switch and a second power switch. The energy storage device stores a charge for fast activation of the switches. The first switch is operable for coupling input current to an output terminal in response to the coupling of a potential supplied by the stored charge to a control terminal of the first switch. The second switch is operable for coupling a limited amount of the input current to the output terminal in response to the coupling of a potential supplied by the stored charge to a control terminal of the second switch.

Abstract translation: 快速阻塞开关包括例如能量存储装置，第一电力开关和第二电力开关。 能量存储装置存储用于快速激活开关的电荷。 响应于由存储的电荷提供的电位与第一开关的控制端的耦合，第一开关可操作用于将输入电流耦合到输出端。 响应于由所存储的电荷提供的电位与第二开关的控制端的耦合，第二开关可操作用于将有限量的输入电流耦合到输出端。