公开(公告)号：US10355592B2

公开(公告)日：2019-07-16

申请号：US15709497

申请日：2017-09-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ranjit Kumar Dash ,  Keith Edmund Kunz

IPC: H02M3/158 ,  G01R19/00 ,  G01R19/175 ,  G05F1/44 ,  H02M3/156 ,  H02M1/00

Abstract: Methods and apparatus for detecting a zero inductor current to control switch transitions for a power converter. An example method includes outputting a first voltage and a first current, receiving the first voltage and output a second voltage into an input of a comparator, when the second voltage is above a third voltage, outputting a first output voltage, when the second voltage is below the third voltage, outputting a second output voltage, determining when the first current is zero based the output of the comparator, enabling a set of switches based on when the first current is zero.

公开(公告)号：US08901968B2

公开(公告)日：2014-12-02

申请号：US13930087

申请日：2013-06-28

Applicant: Texas Instruments Incorporated

Inventor： Lakshmanan Balasubramanian ,  Ranjit Kumar Dash

IPC: H03M1/00 ,  H03L5/00 ,  H02J1/00 ,  H03K19/00

CPC classification number: H02J1/00 ,  H03K19/0013 ,  Y10T307/50

Abstract: A circuit includes circuit portions operating from separate power supplies which are switched sequentially. An output of a first portion powered by a power supply (A) is provided as an input to a second portion powered by another power supply (B). Power supply (A) is switched-ON a delay interval later than power supply (B). In an embodiment, the first portion also receives a control input which enables or disables response of the first portion to changes in its inputs. An active circuit is connected between the control terminal and a constant reference potential node of the circuit, and has one transistor of a current-mirror pair connected across supplies (A) and (B). The active circuit connects the control terminal to the constant reference potential node in the delay interval, but is an open circuit otherwise. Power dissipation in the circuit is thereby reduced.

Abstract translation: 电路包括从分开的电源操作的电路部分，其被顺序地切换。 由电源（A）供电的第一部分的输出被提供给由另一电源（B）供电的第二部分的输入。 电源（A）在电源（B）之后的延迟时间间隔内接通。 在一个实施例中，第一部分还接收控制输入，其使能或禁止第一部分对其输入的变化的响应。 有源电路连接在控制端和电路的恒定参考电位节点之间，并且具有连接在电源（A）和（B）之间的电流镜对的一个晶体管。 有源电路在延迟时间间隔内将控制端子连接到恒定参考电位节点，否则就是开路。 从而减小了电路中的功耗。

公开(公告)号：US20130285451A1

公开(公告)日：2013-10-31

申请号：US13930087

申请日：2013-06-28

Applicant: Texas Instruments Incorporated

Inventor： Lakshmanan Balasubramanian ,  Ranjit Kumar Dash

IPC: H02J1/00

CPC classification number: H02J1/00 ,  H03K19/0013 ,  Y10T307/50

Abstract: A circuit includes circuit portions operating from separate power supplies which are switched sequentially. An output of a first portion powered by a power supply (A) is provided as an input to a second portion powered by another power supply (B). Power supply (A) is switched-ON a delay interval later than power supply (B). In an embodiment, the first portion also receives a control input which enables or disables response of the first portion to changes in its inputs. An active circuit is connected between the control terminal and a constant reference potential node of the circuit, and has one transistor of a current-mirror pair connected across supplies (A) and (B). The active circuit connects the control terminal to the constant reference potential node in the delay interval, but is an open circuit otherwise. Power dissipation in the circuit is thereby reduced.

公开(公告)号：US08823341B2

公开(公告)日：2014-09-02

申请号：US13658781

申请日：2012-10-23

Applicant: Texas Instruments Incorporated

Inventor： Sudhir Polarouthu ,  Suresh Mallala ,  Ranjit Kumar Dash ,  Sundara Siva Rao Giduturi

IPC: G05F1/00

CPC classification number: H02M3/156 ,  H02M2001/0045 ,  H03F1/0244 ,  H03F3/45183 ,  H03F2203/45674

Abstract: The systems and methods of auto-configurable switching/linear regulation disclosed herein enable a device to operate in both DC-to-DC switching regulation and linear regulation applications. The systems and methods disclosed herein differentiate between switching and linear mode. If the application is for a linear regulator, there will only be a capacitor on the output. If the application is for switching mode regulation, there will be an inductor and a capacitor on the output. Then based on the determination, the mode is selected and the hardware is converted into switching regulator operation or linear regulator operation.

Abstract translation: 本文公开的自动配置开关/线性调节的系统和方法使得器件能够在DC-DC开关调节和线性调节应用中工作。 这里公开的系统和方法区分切换和线性模式。 如果应用用于线性稳压器，输出端将只有一个电容器。 如果应用于开关模式调节，输出端将有一个电感和一个电容。 然后根据确定，选择模式，并将硬件转换为开关稳压器操作或线性稳压器操作。

公开(公告)号：US09692296B1

公开(公告)日：2017-06-27

申请号：US15043255

申请日：2016-02-12

Applicant: Texas Instruments Incorporated

Inventor： Ranjit Kumar Dash ,  Keith Edmund Kunz

IPC: H02M3/158 ,  H02M3/04 ,  H02M3/156 ,  H02M1/00

CPC classification number: H02M3/04 ,  H02M3/156 ,  H02M3/158 ,  H02M3/1588 ,  H02M2001/009

Abstract: Single-input-multiple-output (SIMO) DC-DC converters and SIMO DC-DC converter control circuits are disclosed. An example DC-DC converter control circuit includes a switch controller to control respective switches of a SIMO DC-DC voltage converter that has multiple output circuits. The example control circuit also includes an arbitration circuit that determines a first one of the output circuits to have priority over other ones of the output circuits based on a priority signal, and selects a first output circuit to be charged during a first time slot based on the priority signal and based on first kick signals indicating that the at least two output circuits are to be charged. The control circuit also includes a next kick detector that determines a second one of the output circuits to be charged during a second time slot after the first time slot based on the priority. The control circuit also includes a time slot controller that determines a first time duration of the first time slot based on the determined second one of the output circuits, the arbitration circuit to output a second kick signal to the switch controller to control the switches to charge the first one of the output circuits during the first time slot.

公开(公告)号：US20180013349A1

公开(公告)日：2018-01-11

申请号：US15709497

申请日：2017-09-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ranjit Kumar Dash ,  Keith Edmund Kunz

IPC: H02M3/158 ,  G01R19/175 ,  G01R19/00 ,  H02M3/156 ,  H02M1/00

CPC classification number: H02M3/158 ,  G01R19/00 ,  G01R19/175 ,  G05F1/44 ,  H02M3/156 ,  H02M2001/0009 ,  Y02B70/1425

Abstract: Methods and apparatus for detecting a zero inductor current to control switch transitions for a power converter. An example method includes outputting a first voltage and a first current, receiving the first voltage and output a second voltage into an input of a comparator, when the second voltage is above a third voltage, outputting a first output voltage, when the second voltage is below the third voltage, outputting a second output voltage, determining when the first current is zero based the output of the comparator, enabling a set of switches based on when the first current is zero.

公开(公告)号：US09806614B2

公开(公告)日：2017-10-31

申请号：US14973146

申请日：2015-12-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ranjit Kumar Dash ,  Keith Edmund Kunz

IPC: G05F1/44 ,  H02M3/158 ,  G01R19/00 ,  G05F3/16 ,  H02M3/156 ,  H02M1/00

CPC classification number: H02M3/158 ,  G01R19/00 ,  G01R19/175 ,  H02M3/156 ,  H02M2001/0009

Abstract: Methods and apparatus for detecting a zero inductor current to control switch transitions for a power converter. An example method includes outputting a first voltage and a first current, receiving the first voltage and output a second voltage into an input of a comparator, when the second voltage is above a third voltage, outputting a first output voltage, when the second voltage is below the third voltage, outputting a second output voltage, determining when the first current is zero based the output of the comparator, enabling a set of switches based on when the first current is zero.

公开(公告)号：US20170179823A1

公开(公告)日：2017-06-22

申请号：US14973146

申请日：2015-12-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ranjit Kumar Dash ,  Keith Edmund Kunz

IPC: H02M3/158

CPC classification number: H02M3/158 ,  G01R19/00 ,  G01R19/175 ,  H02M3/156 ,  H02M2001/0009

Abstract: Methods and apparatus for detecting a zero inductor current to control switch transitions for a power converter. An example method includes outputting a first voltage and a first current, receiving the first voltage and output a second voltage into an input of a comparator, when the second voltage is above a third voltage, outputting a first output voltage, when the second voltage is below the third voltage, outputting a second output voltage, determining when the first current is zero based the output of the comparator, enabling a set of switches based on when the first current is zero.

公开(公告)号：US20140111169A1

公开(公告)日：2014-04-24

申请号：US13658781

申请日：2012-10-23

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sudhir Polarouthu ,  Suresh Mallala ,  Ranjit Kumar Dash ,  Sundara Siva Rao Giduturi

IPC: G05F1/46

CPC classification number: H02M3/156 ,  H02M2001/0045 ,  H03F1/0244 ,  H03F3/45183 ,  H03F2203/45674

Abstract: The systems and methods of auto-configurable switching/linear regulation disclosed herein enable a device to operate in both DC-to-DC switching regulation and linear regulation applications. The systems and methods disclosed herein differentiate between switching and linear mode. If the application is for a linear regulator, there will only be a capacitor on the output. If the application is for switching mode regulation, there will be an inductor and a capacitor on the output. Then based on the determination, the mode is selected and the hardware is converted into switching regulator operation or linear regulator operation.

Abstract translation: 本文公开的自动配置开关/线性调节的系统和方法使得器件能够在DC-DC开关调节和线性调节应用中工作。 这里公开的系统和方法区分切换和线性模式。 如果应用用于线性稳压器，输出端将只有一个电容器。 如果应用于开关模式调节，输出端将有一个电感和一个电容。 然后根据确定，选择模式，并将硬件转换为开关稳压器操作或线性稳压器操作。