公开(公告)号：US09075423B2

公开(公告)日：2015-07-07

申请号：US12859478

申请日：2010-08-19

Applicant: Liang Zhu ,  Jun Liu ,  Hai Bo Zhang

Inventor： Liang Zhu ,  Jun Liu ,  Hai Bo Zhang

IPC: G05F1/577 ,  G05F1/575 ,  H02M3/145

CPC classification number: G05F1/575

Abstract: An embodiment of a method includes generating a regulated output signal from a regulated intermediate signal in response to a reference signal and the regulated output signal, and generating the regulated intermediate signal from an input signal in response to the regulated output signal and the regulated intermediate signal. By generating one regulated signal (e.g., a regulated output voltage) from another regulated signal (e.g., a regulated intermediate voltage), the magnitude of the ripple component of the one regulated signal may be reduced. Furthermore, by generating the regulated intermediate signal in response to the regulated output signal, the efficiency of the regulation may be increased.

Abstract translation: 一种方法的实施例包括响应于参考信号和调节的输出信号从调节的中间信号产生调节的输出信号，以及响应于调节的输出信号和调节的中间信号从输入信号产生调节的中间信号 。 通过从另一调节信号（例如，调节中间电压）产生一个调节信号（例如，调节输出电压），可以减小一个调节信号的纹波分量的幅度。 此外，通过响应于调节的输出信号产生调节的中间信号，可以提高调节的效率。

公开(公告)号：US20150185747A1

公开(公告)日：2015-07-02

申请号：US14543294

申请日：2014-11-17

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd

Inventor： Yong Feng Liu

IPC: G05F1/565 ,  G05F1/59 ,  G05F1/575

CPC classification number: G05F1/575 ,  G05F1/565 ,  G05F1/59 ,  G05F3/30

Abstract: A voltage regulator includes a feedback regulation loop and a drive transistor configured to source current to a regulated output. A transient recovery circuit is coupled to the voltage regulator circuit and includes a first transistor coupled to source current into a control terminal of the drive transistor, wherein the source current is in addition to current sourced in response to operation of the feedback regulation loop. The first transistor is selectively actuated in response to a drop in voltage at the regulated output. The transient recovery circuit further includes a second transistor coupled to sink current from the regulated output. The sink current has a first non-zero magnitude in the quiescent operating mode of the regulator circuit. In response to an increase in voltage at the regulated output, the operation of the second transistor is modified to increase the sink current to a second, greater, non-zero magnitude.

Abstract translation: 电压调节器包括反馈调节环路和驱动晶体管，其被配置为将电流输出到调节输出端。 瞬态恢复电路耦合到电压调节器电路，并且包括耦合到源极电流到驱动晶体管的控制端的第一晶体管，其中源电流除了响应于反馈调节环的操作而产生的电流之外。 第一晶体管响应于调节输出处的电压下降而选择性地致动。 瞬态恢复电路还包括耦合到从调节输出吸收电流的第二晶体管。 灌电流在调节器电路的静态工作模式下具有第一个非零幅值。 响应于调节输出处的电压增加，第二晶体管的操作被修改以将吸收电流增加到第二，更大，非零的幅度。

公开(公告)号：US08907641B2

公开(公告)日：2014-12-09

申请号：US13313688

申请日：2011-12-07

Applicant: HaiBo Zhang ,  GuangFeng Wang ,  Jin Li

Inventor： HaiBo Zhang ,  GuangFeng Wang ,  Jin Li

IPC: H02H3/24 ,  G05F1/613 ,  H02M3/158 ,  H02M1/32

CPC classification number: H02M1/32 ,  H02M3/158

Abstract: A boost converter includes an input terminal and an output terminal. A first switch is connected between a first intermediate node and a reference potential node. An inductive component is connected between the input terminal and the first intermediate node. A rectifying component is connected between the first intermediate node and a second intermediate node. A multi-state module is connected between the second intermediate node and the output terminal, and has at least a low resistance state and a high resistance state. A control module is coupled to the output terminal, the first switch and the multi-state module, and is operable in response to an output voltage to control the first switch and the multi-state module so that the first switch is open and the multi-state module is in the high resistance state if the output voltage is lower than a threshold value.

Abstract translation: 升压转换器包括输入端子和输出端子。 第一开关连接在第一中间节点和参考电位节点之间。 电感元件连接在输入端和第一中间节点之间。 整流部件连接在第一中间节点和第二中间节点之间。 多状态模块连接在第二中间节点和输出端子之间，并具有至少低电阻状态和高电阻状态。 控制模块耦合到输出端子，第一开关和多状态模块，并且可响应于输出电压来操作以控制第一开关和多状态模块，使得第一开关断开，并且多 如果输出电压低于阈值，则状态模块处于高电阻状态。

公开(公告)号：US20140184345A1

公开(公告)日：2014-07-03

申请号：US14073198

申请日：2013-11-06

Applicant: STMicroelectronics (Shenzhen) R& D Co. Ltd.

Inventor： Hong Wu LIN

IPC: H03B5/02

CPC classification number: H03K3/0231

Abstract: An oscillator module includes a first MOS transistor and a capacitor. The capacitor is coupled between a gate and source of the first MOS transistor. The drain of the first MOS transistor receives a first bias current and generates an oscillating output signal. A switching circuit operates in response to the oscillating output signal to selective charge and discharge the capacitor. A current sourcing circuit is configured to generate the bias current. The current sourcing circuit includes a second MOS transistor which has an identical layout to the first MOS transistor and receives a second bias current. A resistor is coupled between a gate and source of the second MOS transistor. The current sourcing circuit further includes a current mirror having an input configured to receive a reference current passing through the resistor and generate the first and second bias currents.

Abstract translation: 振荡器模块包括第一MOS晶体管和电容器。 电容器耦合在第一MOS晶体管的栅极和源极之间。 第一MOS晶体管的漏极接收第一偏置电流并产生振荡输出信号。 开关电路响应于振荡输出信号而工作以对电容器进行选择性充电和放电。 电流源电路被配置为产生偏置电流。 电流源电路包括与第一MOS晶体管具有相同布局并接收第二偏置电流的第二MOS晶体管。 电阻器耦合在第二MOS晶体管的栅极和源极之间。 电流源电路还包括电流镜，其具有被配置为接收通过电阻器的参考电流并产生第一和第二偏置电流的输入。

公开(公告)号：US08595598B2

公开(公告)日：2013-11-26

申请号：US12798767

申请日：2010-04-09

Applicant: Zhi Gao

Inventor： Zhi Gao

IPC: H03M13/00 ,  G06F11/00

CPC classification number: H04L1/0009

Abstract: A system and method for error correction coding is configured to dynamically implement one of a number of error correction coding methods during a transmission of data. The error correction coding method is selected based on a measured bit error rate during the transmission of data. The implementation of the error correction coding method is performed without interrupting the data transmission.

Abstract translation: 用于纠错编码的系统和方法被配置为在数据传输期间动态地实现多个纠错编码方法之一。 基于在传输数据期间测量的比特误码率来选择纠错编码方法。 在不中断数据传输的情况下执行纠错编码方法。

公开(公告)号：US08587216B2

公开(公告)日：2013-11-19

申请号：US13300219

申请日：2011-11-18

Applicant: Guojun Li ,  Wei Song

Inventor： Guojun Li ,  Wei Song

IPC: H05B37/02

CPC classification number: G05F3/08 ,  H05B33/0812 ,  H05B37/02

Abstract: A device includes a positive power supply voltage node; and a first operational amplifier including a first input, a second input, and an output coupled to the second input. The device further includes a first resistor coupled between the second input of the first operational amplifier and the positive power supply voltage node; a second resistor coupled between the output of the first operational amplifier and an electrical ground, and is configured to receive a same current flowing through the first resistor; a second operational amplifier including a first input coupled to the second resistor, and an output coupled to an output node; and a third resistor coupled between the electrical ground and a second input of the second operational amplifier.

Abstract translation: 一个装置包括一个正电源电压节点; 以及包括第一输入，第二输入和耦合到第二输入的输出的第一运算放大器。 该装置还包括耦合在第一运算放大器的第二输入端和正电源电压节点之间的第一电阻器; 耦合在所述第一运算放大器的输出端和电接地之间的第二电阻器，并且被配置为接收流过所述第一电阻器的相同电流; 第二运算放大器，包括耦合到第二电阻器的第一输入端和耦合到输出节点的输出端; 以及耦合在所述电接地和所述第二运算放大器的第二输入端之间的第三电阻器。

公开(公告)号：US08525593B2

公开(公告)日：2013-09-03

申请号：US13313328

申请日：2011-12-07

Applicant: QiYu Liu

Inventor： QiYu Liu

IPC: H03F3/217

CPC classification number: H03F1/34 ,  H03F1/301 ,  H03F3/2173 ,  H03F2200/459

Abstract: An amplifier circuit includes an amplifier unit that is configured to receive an input signal and generate a switching output signal. A level shifter is configured to shift the amplitude of the input signal to have a shifted amplitude that is proportional to a peak-to-peak amplitude of the switching output signal.

Abstract translation: 放大器电路包括被配置为接收输入信号并产生开关输出信号的放大器单元。 电平移位器被配置为将输入信号的幅度移位成具有与开关输出信号的峰 - 峰幅度成比例的移位幅度。

公开(公告)号：US08487594B2

公开(公告)日：2013-07-16

申请号：US12902009

申请日：2010-10-11

Applicant: Zhenbiao Cai ,  Haibo Zhang

Inventor： Zhenbiao Cai ,  Haibo Zhang

IPC: G05F1/613 ,  G05F1/40

CPC classification number: H02M3/156 ,  G01R19/0092 ,  H02M2001/0009

Abstract: An integrated circuit includes a DC-DC converter, which includes an inductor; a first transistor coupled to the inductor and configured to pass an inductor current to the inductor; and a second transistor forming a current mirror with the first transistor. The integrated circuit further includes an operational amplifier. The operational amplifier includes a first input node and a second input node. The first input node is configured to couple to a drain of the first transistor when the first transistor is turned on, and decoupled from the drain of the first transistor when the first transistor is turned off. The second input node is coupled to a drain of the second transistor.

Abstract translation: 集成电路包括DC-DC转换器，其包括电感器; 耦合到所述电感器并被配置为将电感器电流传递到所述电感器的第一晶体管; 以及与第一晶体管形成电流镜的第二晶体管。 集成电路还包括运算放大器。 运算放大器包括第一输入节点和第二输入节点。 当第一晶体管导通时，第一输入节点被配置为耦合到第一晶体管的漏极，并且当第一晶体管截止时，第一输入节点与第一晶体管的漏极耦合。 第二输入节点耦合到第二晶体管的漏极。

公开(公告)号：US20130169362A1

公开(公告)日：2013-07-04

申请号：US13707350

申请日：2012-12-06

Applicant: STMicroelectronics (Shenzhen) R&D Co. Ltd.

Inventor： Mei YANG ,  YueHua WANG ,  Xaut ZHANG ,  Kelvin WEN ,  XiangSheng LI

IPC: H03F3/26

CPC classification number: H03F3/211 ,  H03F3/187 ,  H03F3/26 ,  H03F3/4508 ,  H03F3/45475 ,  H03F3/68 ,  H03F2200/03 ,  H03F2203/21131 ,  H03F2203/45102 ,  H03F2203/45154 ,  H03F2203/45244 ,  H03F2203/45528 ,  H03F2203/45552

Abstract: A clamping circuit for a class AB amplifier includes a reference voltage circuit, four NPN Darlington transistors having inputs coupled to the reference voltage circuit, and outputs for providing four clamped voltages, and a split NPN Darlington transistor having an input coupled to the reference voltage circuit, and four separate outputs for providing four AC ground voltages.

Abstract translation: 用于AB类放大器的钳位电路包括参考电压电路，具有耦合到参考电压电路的输入的四个NPN达林顿晶体管和用于提供四个钳位电压的输出，以及具有耦合到参考电压电路的输入的分离NPN达林顿晶体管 ，以及四个独立的输出，用于提供四个交流接地电压。

公开(公告)号：US20120313615A1

公开(公告)日：2012-12-13

申请号：US13590819

申请日：2012-08-21

Applicant: Jun Liu ,  Haibo Zhang

Inventor： Jun Liu ,  Haibo Zhang

IPC: G05F3/02

CPC classification number: H02M3/156

Abstract: An integrated circuit includes a saw-tooth generator including a saw tooth node configured to have a saw-tooth voltage generated thereon; and a first switch having a first end connected to the saw tooth node. The integrated circuit further includes a second switch coupled between an output node and an electrical ground, wherein the first switch and the second switch are configured to operate synchronously. A first current source is connected to the saw tooth node. A second current source is connected to the output node.

Abstract translation: 集成电路包括锯齿发生器，其包括被配置为具有在其上产生的锯齿电压的锯齿节点; 以及第一开关，其具有连接到锯齿节点的第一端。 集成电路还包括耦合在输出节点和电接地之间的第二开关，其中第一开关和第二开关被配置为同步地操作。 第一电流源连接到锯齿节点。 第二个电流源连接到输出节点。