公开(公告)号：US20150123627A1

公开(公告)日：2015-05-07

申请号：US14070191

申请日：2013-11-01

Applicant: Texas Instruments Incorporated

Inventor： Srinivas Venkata Veeramreddi ,  Sudhir Polarouthu

IPC: H02M3/04

CPC classification number: H02M3/1582

Abstract: In an embodiment, a circuit includes a Direct Current (DC)-DC buck-boost converter and a controller. The controller includes an error amplifier configured to receive a feedback signal responsive to an output signal of the buck-boost converter. The error amplifier is configured to compare the feedback signal and a reference signal to generate an error signal. The controller includes a modulator circuit that is configured to receive the error signal and compare the error signal with a periodic ramp signal to generate a modulated signal. The controller further includes a digital logic block to generate switching signals in response to the modulated signal that is fed to the buck-boost converter to control the output signal of the buck-boost converter. The controller includes a capacitance multiplier circuit coupled to the output of the error amplifier to configure a dominant pole so as to compensate the buck-boost converter.

Abstract translation: 在一个实施例中，电路包括直流（DC）-DC降压 - 升压转换器和控制器。 该控制器包括误差放大器，该误差放大器被配置为响应于降压 - 升压转换器的输出信号接收反馈信号。 误差放大器被配置为比较反馈信号和参考信号以产生误差信号。 控制器包括调制器电路，其被配置为接收误差信号并将误差信号与周期性斜坡信号进行比较以产生调制信号。 控制器还包括数字逻辑块，用于响应于馈送到降压 - 升压转换器的调制信号产生开关信号，以控制降压 - 升压转换器的输出信号。 控制器包括耦合到误差放大器的输出的电容倍增器电路，以配置主极以补偿降压 - 升压转换器。

公开(公告)号：US10581326B2

公开(公告)日：2020-03-03

申请号：US14070191

申请日：2013-11-01

Applicant: Texas Instruments Incorporated

Inventor： Srinivas Venkata Veeramreddi ,  Sudhir Polarouthu

IPC: H02M3/158

Abstract: In an embodiment, a circuit includes a Direct Current (DC)-DC buck-boost converter and a controller. The controller includes an error amplifier configured to receive a feedback signal responsive to an output signal of the buck-boost converter. The error amplifier is configured to compare the feedback signal and a reference signal to generate an error signal. The controller includes a modulator circuit that is configured to receive the error signal and compare the error signal with a periodic ramp signal to generate a modulated signal. The controller further includes a digital logic block to generate switching signals in response to the modulated signal that is fed to the buck-boost converter to control the output signal of the buck-boost converter. The controller includes a capacitance multiplier circuit coupled to the output of the error amplifier to configure a dominant pole so as to compensate the buck-boost converter.

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。

公开(公告)号：US20140097810A1

公开(公告)日：2014-04-10

申请号：US13647156

申请日：2012-10-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Harikrishna Parthasarathy ,  Srinivas Venkata Veeramreddi ,  Sudhir Polarouthu ,  Baher S. Haroun

IPC: H02J1/02

CPC classification number: H02M3/1563

Abstract: As disclosed herein, two hysteresis levels, a high level a low level, may be used to set a period (and the switching frequency) of the output voltage of a DC-DC converter, as well as the output ripple of the converter. These two thresholds may be changed using a set of switches. By controlling the sequence and the duration of the on-time of the switches, spectral spurs in the output can be controlled and the amplitude and the frequency band of interest can be reduced. Additional spur reduction may be possible by randomizing the control of the switches.

Abstract translation: 如本文所公开的，可以使用两个滞后电平（高电平低电平）来设置DC-DC转换器的输出电压的周期（和开关频率）以及转换器的输出纹波。 这两个阈值可以使用一组开关来改变。 通过控制开关的导通时间的顺序和持续时间，可以控制输出中的频谱杂散，并且可以减小感兴趣的幅度和频带。 通过对开关的控制进行随机化，可以实现额外的齿间减少。

公开(公告)号：US10291118B2

公开(公告)日：2019-05-14

申请号：US15847383

申请日：2017-12-19

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rejin Kanjavalappil Raveendranath ,  Sudhir Polarouthu ,  Jasjot Singh Chadha

IPC: H02M3/156 ,  H02M1/08 ,  H02M1/00

Abstract: A power supply, comprising a controller comprising a first switch coupled between a first node and a second node, a first resistor coupled between the second node and a third node, a second resistor coupled between the first node and a fourth node, a capacitor coupled between the fourth node and a fifth node, an amplifier coupled at a first input to the fourth node, at a second input to the third node, and at an output to the fifth node, and a comparator coupled at a first input to the fifth node and at a second input to the third node.

公开(公告)号：US09823282B2

公开(公告)日：2017-11-21

申请号：US14735223

申请日：2015-06-10

Applicant: Texas Instruments Incorporated

Inventor： Prakash Narayanan ,  Sudhir Polarouthu

IPC: G01R19/25 ,  G01R31/30 ,  G01R19/257 ,  G01R31/3185 ,  G01R31/3181

CPC classification number: G01R19/257 ,  G01R31/3004 ,  G01R31/3181 ,  G01R31/318516

Abstract: An integrated circuit includes a functional circuit (10) having a power grid (20) with a set of power grid points (30.i) for monitoring; and an electronic monitoring circuit (100) that has a variably operable reference circuit (150) responsive to an input register (155) and having an output, comparison circuitry (110) having plural outputs and having a first input coupled to the output of said variably operable reference circuit (150) and a set of second inputs each second input coupled to a respective one of said power grid points (30.i); and an output register (120) having at least two register bit cells (120.i) respectively fed by the plural outputs of said comparison circuitry (110.i). Other integrated circuits, and processes of testing and of manufacturing are also disclosed.

公开(公告)号：US09048728B2

公开(公告)日：2015-06-02

申请号：US13647156

申请日：2012-10-08

Applicant: Texas Instruments Incorporated

Inventor： Harikrishna Parthasarathy ,  Srinivas Venkata Veeramreddi ,  Sudhir Polarouthu ,  Baher S. Haroun

IPC: G05F1/63 ,  H02M3/156

CPC classification number: H02M3/1563

Abstract: Two hysteresis levels, a high level and a low level, may be used to set a period (and the switching frequency) of the output voltage of a DC-DC converter, as well as the output ripple of the converter. These two thresholds may be changed using pairs of switches. By controlling the sequence and the duration of the on-time of the switches, spectral spurs in the output can be controlled and the amplitude and the frequency band of interest can be reduced. Additional spur reduction may be possible by randomizing the control of the switches.

Abstract translation: 可以使用两个滞后电平（高电平和低电平）来设置DC-DC转换器的输出电压的周期（和开关频率）以及转换器的输出纹波。 这两个阈值可以使用成对的开关来改变。 通过控制开关的导通时间的顺序和持续时间，可以控制输出中的频谱杂散，并且可以减小感兴趣的幅度和频带。 通过对开关的控制进行随机化，可以实现额外的齿间减少。

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：US11444537B2

公开(公告)日：2022-09-13

申请号：US16806010

申请日：2020-03-02

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata Veeramreddi ,  Sudhir Polarouthu

IPC: H02M3/158

Abstract: In an embodiment, a circuit includes a Direct Current (DC)-DC buck-boost converter and a controller. The controller includes an error amplifier configured to receive a feedback signal responsive to an output signal of the buck-boost converter. The error amplifier is configured to compare the feedback signal and a reference signal to generate an error signal. The controller includes a modulator circuit that is configured to receive the error signal and compare the error signal with a periodic ramp signal to generate a modulated signal. The controller further includes a digital logic block to generate switching signals in response to the modulated signal that is fed to the buck-boost converter to control the output signal of the buck-boost converter. The controller includes a capacitance multiplier circuit coupled to the output of the error amplifier to configure a dominant pole so as to compensate the buck-boost converter.

公开(公告)号：US20200274447A1

公开(公告)日：2020-08-27

申请号：US16806010

申请日：2020-03-02

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Srinivas Venkata Veeramreddi ,  Sudhir Polarouthu

IPC: H02M3/158

Abstract: In an embodiment, a circuit includes a Direct Current (DC)-DC buck-boost converter and a controller. The controller includes an error amplifier configured to receive a feedback signal responsive to an output signal of the buck-boost converter. The error amplifier is configured to compare the feedback signal and a reference signal to generate an error signal. The controller includes a modulator circuit that is configured to receive the error signal and compare the error signal with a periodic ramp signal to generate a modulated signal. The controller further includes a digital logic block to generate switching signals in response to the modulated signal that is fed to the buck-boost converter to control the output signal of the buck-boost converter. The controller includes a capacitance multiplier circuit coupled to the output of the error amplifier to configure a dominant pole so as to compensate the buck-boost converter.