公开(公告)号：US09614433B2

公开(公告)日：2017-04-04

申请号：US14205386

申请日：2014-03-12

Applicant: Silicon Motion Inc.

Inventor： Tsun-Hsin Wang

IPC: H02M3/07 ,  H02M1/00 ,  G05F1/565

CPC classification number: H02M3/07 ,  G05F1/565 ,  H02M3/073 ,  H02M2001/0045 ,  H02M2003/072

Abstract: A switching-capacitor regulator with a charge injection mode for a high loading current is used to generate an output voltage at an output node, where the switching-capacitor regulator includes a storage capacitor, a switch module, a current source and a control unit. The switch module is coupled between the storage capacitor, a first supply voltage, a second supply voltage and the output node. The current source is coupled to the output node, and is used for selectively providing a current to the output node. The control unit is coupled to the switch module and the output node, and is used for controlling the switch module to selectively charge or discharge the storage capacitor, and for controlling the current source to selectively provide the current to the output node, to adjust a voltage level of the output voltage.

公开(公告)号：US20140266124A1

公开(公告)日：2014-09-18

申请号：US14205386

申请日：2014-03-12

Applicant: SILICON MOTION INC.

Inventor： Tsun-Hsin Wang

IPC: H02M3/07

CPC classification number: H02M3/07 ,  G05F1/565 ,  H02M3/073 ,  H02M2001/0045 ,  H02M2003/072

Abstract: A switching-capacitor regulator with a charge injection mode for a high loading current is provided, where the switching-capacitor regulator is used to generate an output voltage at an output node, and the switching-capacitor regulator includes a storage capacitor, a switch module, a current source and a control unit. The switch module is coupled between the storage capacitor, a first supply voltage, a second supply voltage and the output node. The current source is coupled to the output node, and is used for selectively providing a current to the output node. The control unit is coupled to the switch module and the output node, and is used for controlling the switch module to selectively charge or discharge the storage capacitor, and for controlling the current source to selectively provide the current to the output node, to adjust a voltage level of the output voltage.

Abstract translation: 提供了一种具有高负载电流的电荷注入模式的开关电容调节器，其中开关电容调节器用于在输出节点处产生输出电压，开关电容调节器包括存储电容器，开关模块 ，电流源和控制单元。 开关模块耦合在存储电容器，第一电源电压，第二电源电压和输出节点之间。 电流源耦合到输出节点，并用于选择性地向输出节点提供电流。 控制单元耦合到开关模块和输出节点，并且用于控制开关模块以选择性地对存储电容器进行充电或放电，并且用于控制电流源以选择性地向输出节点提供电流，以调整 输出电压的电压电平。

公开(公告)号：US09859792B2

公开(公告)日：2018-01-02

申请号：US15429178

申请日：2017-02-10

Applicant: Silicon Motion Inc.

Inventor： Tsun-Hsin Wang

IPC: H02M3/07 ,  H02M1/00 ,  G05F1/565

CPC classification number: H02M3/07 ,  G05F1/565 ,  H02M3/073 ,  H02M2001/0045 ,  H02M2003/072

Abstract: A switching-capacitor regulator with a charge injection mode for a high loading current is used to generate an output voltage at an output node, where the switching-capacitor regulator includes a storage capacitor, a switch module, a current source and a control unit. The switch module is coupled between the storage capacitor, a first supply voltage, a second supply voltage and the output node. The current source is coupled to the output node, and is used for selectively providing a current to the output node. The control unit is coupled to the switch module and the output node, and is used for controlling the switch module to selectively charge or discharge the storage capacitor, and for controlling the current source to selectively provide the current to the output node, to adjust a voltage level of the output voltage

公开(公告)号：US20140285165A1

公开(公告)日：2014-09-25

申请号：US14205395

申请日：2014-03-12

Applicant: Silicon Motion Inc.

Inventor： Tsun-Hsin Wang ,  Chiao-Hsing Wang

IPC: G05F1/56

CPC classification number: G05F1/56 ,  G05F1/575

Abstract: A low-dropout voltage regulator apparatus includes a voltage source circuit, an error amplifier, an output transistor, a resistor-capacitor circuit, a detection circuit, and a current adjusting circuit. The voltage source circuit generates a reference voltage signal and at least one threshold voltage signal. The error amplifier receives the reference voltage signal and a feedback voltage signal to generate an output control signal. The output transistor provides an output current for the output terminal according to the output control signal. The resistor-capacitor circuit generates the feedback voltage signal using voltage dividing according to a voltage corresponding to the output current. The detection circuit compares at least one threshold voltage signal with the output voltage to generate at least one control voltage signal. The current adjusting circuit adaptively adjusts the current passing though the output transistor to decrease the transient response time according to the at least one control voltage signal.

Abstract translation: 低压差稳压器装置包括电压源电路，误差放大器，输出晶体管，电阻 - 电容电路，检测电路和电流调节电路。 电压源电路产生参考电压信号和至少一个阈值电压信号。 误差放大器接收参考电压信号和反馈电压信号以产生输出控制信号。 输出晶体管根据输出控制信号为输出端提供输出电流。 电阻电容电路根据与输出电流对应的电压进行分压，生成反馈电压信号。 检测电路将至少一个阈值电压信号与输出电压进行比较以产生至少一个控制电压信号。 电流调节电路根据至少一个控制电压信号自适应地调节通过输出晶体管的电流以减小瞬态响应时间。

公开(公告)号：US20170155317A1

公开(公告)日：2017-06-01

申请号：US15429178

申请日：2017-02-10

Applicant: Silicon Motion Inc.

Inventor： Tsun-Hsin Wang

IPC: H02M3/07

CPC classification number: H02M3/07 ,  G05F1/565 ,  H02M3/073 ,  H02M2001/0045 ,  H02M2003/072

Abstract: A switching-capacitor regulator with a charge injection mode for a high loading current is used to generate an output voltage at an output node, where the switching-capacitor regulator includes a storage capacitor, a switch module, a current source and a control unit. The switch module is coupled between the storage capacitor, a first supply voltage, a second supply voltage and the output node. The current source is coupled to the output node, and is used for selectively providing a current to the output node. The control unit is coupled to the switch module and the output node, and is used for controlling the switch module to selectively charge or discharge the storage capacitor, and for controlling the current source to selectively provide the current to the output node, to adjust a voltage level of the output voltage

公开(公告)号：US09261892B2

公开(公告)日：2016-02-16

申请号：US14205395

申请日：2014-03-12

Applicant: Silicon Motion Inc.

Inventor： Tsun-Hsin Wang ,  Chiao-Hsing Wang

IPC: G05F1/56 ,  G05F1/575

CPC classification number: G05F1/56 ,  G05F1/575

Abstract: A low-dropout voltage regulator apparatus includes a voltage source circuit, an error amplifier, an output transistor, a resistor-capacitor circuit, a detection circuit, and a current adjusting circuit. The voltage source circuit generates a reference voltage signal and at least one threshold voltage signal. The error amplifier receives the reference voltage signal and a feedback voltage signal to generate an output control signal. The output transistor provides an output current for the output terminal according to the output control signal. The resistor-capacitor circuit generates the feedback voltage signal using voltage dividing according to a voltage corresponding to the output current. The detection circuit compares at least one threshold voltage signal with the output voltage to generate at least one control voltage signal. The current adjusting circuit adaptively adjusts the current passing though the output transistor to decrease the transient response time according to the at least one control voltage signal.

Abstract translation: 低压差稳压器装置包括电压源电路，误差放大器，输出晶体管，电阻 - 电容电路，检测电路和电流调节电路。 电压源电路产生参考电压信号和至少一个阈值电压信号。 误差放大器接收参考电压信号和反馈电压信号以产生输出控制信号。 输出晶体管根据输出控制信号为输出端提供输出电流。 电阻电容电路根据与输出电流对应的电压进行分压，生成反馈电压信号。 检测电路将至少一个阈值电压信号与输出电压进行比较以产生至少一个控制电压信号。 电流调节电路根据至少一个控制电压信号自适应地调节通过输出晶体管的电流以减小瞬态响应时间。