公开(公告)号：US09935595B2

公开(公告)日：2018-04-03

申请号：US15306340

申请日：2014-10-08

Applicant: SANECHIPS TECHNOLOGY CO., LTD.

Inventor： Dong Wei ,  Weisheng Geng

IPC: H03F3/217 ,  H02M3/155 ,  H02M1/14 ,  H03F1/30 ,  H03F3/00 ,  H02M1/00

CPC classification number: H03F3/2171 ,  H02M1/14 ,  H02M3/155 ,  H02M2001/0025 ,  H03F1/303 ,  H03F3/005 ,  H03F3/2178 ,  H03F2200/351 ,  H03F2200/78

Abstract: Disclosed is a switch control circuit, including an error amplifier, a compensation network and a control circuit, wherein the compensation network is connected to an output end of the error amplifier; and the control circuit includes switches from a first switch to a fifth switch and is configured to control operating states of the error amplifier and the compensation network by controlling on/off states of switches from the first switch to the fifth switch. Further disclosed are switch control method, a regulator including the above switch control circuit as well as a computer storage medium.

公开(公告)号：US20170047902A1

公开(公告)日：2017-02-16

申请号：US15306340

申请日：2014-10-08

Applicant: SANECHIPS TECHNOLOGY CO., LTD.

Inventor： Dong Wei ,  Weisheng Geng

IPC: H03F3/217

CPC classification number: H03F3/2171 ,  H02M1/14 ,  H02M3/155 ,  H02M2001/0025 ,  H03F1/303 ,  H03F3/005 ,  H03F3/2178 ,  H03F2200/351 ,  H03F2200/78

Abstract: Disclosed is a switch control circuit, including an error amplifier, a compensation network and a control circuit, wherein the compensation network is connected to an output end of the error amplifier; and the control circuit includes switches from a first switch to a fifth switch and is configured to control operating states of the error amplifier and the compensation network by controlling on/off states of switches from the first switch to the fifth switch. Further disclosed are switch control method, a regulator including the above switch control circuit as well as a computer storage medium.

Abstract translation: 公开了一种开关控制电路，包括误差放大器，补偿网络和控制电路，其中补偿网络连接到误差放大器的输出端; 并且控制电路包括从第一开关到第五开关的开关，并且被配置为通过控制从第一开关到第五开关的开关的接通/断开状态来控制误差放大器和补偿网络的操作状态。 还公开了开关控制方法，包括上述开关控制电路的调节器以及计算机存储介质。

公开(公告)号：US09876424B2

公开(公告)日：2018-01-23

申请号：US15311371

申请日：2014-09-22

Applicant: SANECHIPS TECHNOLOGY CO., LTD.

Inventor： Dong Wei ,  Weisheng Geng

IPC: G05F1/00 ,  H02M3/156 ,  H02M3/04 ,  H02M1/44

CPC classification number: H02M3/156 ,  G05F1/10 ,  G05F1/575 ,  H02M1/44 ,  H02M3/04 ,  H02M2001/0003 ,  H03F1/083 ,  H03F3/45475 ,  H03F2203/45526

Abstract: Disclosed are a compensation network, switching power supply circuit and a circuit compensation method; in the compensation network: an output end of the resistance capacitance network is cascaded to an input end of the unity gain amplifier network, and an output end of the unity gain amplifier network is cascaded to an input end of the error amplifier network; the resistance capacitance network is configured to provide a voltage dividing resistor, and generate a zero and a pole which are mutually canceled; the unity gain amplifier network is configured to generate a zero for canceling a pole in a low pass filter network, and a pole for suppressing a high-frequency noise and improving a phase margin of a switching power supply circuit; and the error amplifier network is configured to generate a pole for increasing low-frequency gain and a zero for canceling another pole in the low pass filter network.

公开(公告)号：US20170077802A1

公开(公告)日：2017-03-16

申请号：US15311371

申请日：2014-09-22

Applicant: SANECHIPS TECHNOLOGY CO., LTD.

Inventor： Dong Wei ,  Weisheng Geng

IPC: H02M3/04 ,  H02M1/44

CPC classification number: H02M3/156 ,  G05F1/10 ,  G05F1/575 ,  H02M1/44 ,  H02M3/04 ,  H02M2001/0003 ,  H03F1/083 ,  H03F3/45475 ,  H03F2203/45526

Abstract: Disclosed are a compensation network, switching power supply circuit and a circuit compensation method; in the compensation network: an output end of the resistance capacitance network is cascaded to an input end of the unity gain amplifier network, and an output end of the unity gain amplifier network is cascaded to an input end of the error amplifier network; the resistance capacitance network is configured to provide a voltage dividing resistor, and generate a zero and a pole which are mutually canceled; the unity gain amplifier network is configured to generate a zero for canceling a pole in a low pass filter network, and a pole for suppressing a high-frequency noise and improving a phase margin of a switching power supply circuit; and the error amplifier network is configured to generate a pole for increasing low-frequency gain and a zero for canceling another pole in the low pass filter network.

Abstract translation: 公开了补偿网络，开关电源电路和电路补偿方法; 在补偿网络中：电阻电容网络的输出端级联到单位增益放大器网络的输入端，单位增益放大器网络的输出端级联到误差放大器网络的输入端; 电阻电容网络被配置为提供分压电阻器，并且生成相互抵消的零和极; 单位增益放大器网络被配置为产生用于消除低通滤波器网络中的极点的零点，以及用于抑制高频噪声并提高开关电源电路的相位裕度的极点; 并且误差放大器网络被配置为产生用于增加低频增益的极点和用于抵消低通滤波器网络中的另一极点的零点。