公开(公告)号：US07834606B2

公开(公告)日：2010-11-16

申请号：US11882485

申请日：2007-08-02

申请人： Kuo-Ping Liu ,  Ko-Cheng Wang ,  Liang-Pin Tai ,  Chung-Sheng Cheng

发明人： Kuo-Ping Liu ,  Ko-Cheng Wang ,  Liang-Pin Tai ,  Chung-Sheng Cheng

IPC分类号： G05F1/00

CPC分类号： H02M3/157 ,  H02M2001/0048 ,  Y02B70/1491

摘要： A control circuit provides a control signal for a constant on-time PWM switching converter to produce an output voltage, such that the converter operates with a constant on-time at a first state and operates with a variable on-time at a second state, so as to decrease the switching frequency and thereby the switching loss, to increase the efficiency of the converter, to improve the transient response, and to reduce the recovery time of the output voltage.

摘要翻译： 控制电路提供用于恒定导通时间PWM开关转换器的控制信号以产生输出电压，使得转换器在第一状态下以恒定导通时间工作，并且在第二状态下以可变导通时间操作， 从而降低开关频率，从而降低开关损耗，提高转换器的效率，改善瞬态响应，并减少输出电压的恢复时间。

公开(公告)号：US20050258813A1

公开(公告)日：2005-11-24

申请号：US10850164

申请日：2004-05-21

申请人： Liang-Pin Tai ,  Kent Hwang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Cheng-Hsuan Fan ,  Ko-Cheng Wang ,  Yu-Fan Liao

发明人： Liang-Pin Tai ,  Kent Hwang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Cheng-Hsuan Fan ,  Ko-Cheng Wang ,  Yu-Fan Liao

IPC分类号： G05F1/40 ,  G05F1/44 ,  H02M1/08

CPC分类号： H02M1/08

摘要： A pulse width modulator includes an amplifier module, a comparator module, and a filter module. The amplifier module receives a feedback voltage signal from a passive network, and generates first and second non-inverted voltage signals and first and second inverted voltage signals in response to the feedback voltage signal. The comparator module receives the first and second non-inverted voltage signals and the first and second inverted voltage signals, and provides first and second differential voltage signals corresponding to the first and second non-inverted voltage signals and the first and second inverted voltage signals. The filter module is coupled between the amplifier module and the comparator module, and is operable so as to attenuate high frequency components of the first and second non-inverted voltage signals. As such, the presence of noise in the feedback voltage signal does not affect differential operation of the comparator module.

摘要翻译： 脉冲宽度调制器包括放大器模块，比较器模块和滤波器模块。 放大器模块从无源网络接收反馈电压信号，并响应于反馈电压信号产生第一和第二非反相电压信号以及第一和第二反相电压信号。 比较器模块接收第一和第二非反相电压信号以及第一和第二反相电压信号，并提供对应于第一和第二非反相电压信号以及第一和第二反相电压信号的第一和第二差分电压信号。 滤波器模块耦合在放大器模块和比较器模块之间，并且可操作以便衰减第一和第二非反相电压信号的高频分量。 因此，反馈电压信号中的噪声的存在不会影响比较器模块的差分工作。

公开(公告)号：US06969980B1

公开(公告)日：2005-11-29

申请号：US10850164

申请日：2004-05-21

申请人： Liang-Pin Tai ,  Kent Hwang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Cheng-Hsuan Fan ,  Ko-Cheng Wang ,  Yu-Fan Liao

发明人： Liang-Pin Tai ,  Kent Hwang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Cheng-Hsuan Fan ,  Ko-Cheng Wang ,  Yu-Fan Liao

IPC分类号： G05F1/40 ,  G05F1/44 ,  H02M1/08

CPC分类号： H02M1/08

摘要： A pulse width modulator includes an amplifier module, a comparator module, and a filter module. The amplifier module receives a feedback voltage signal from a passive network, and generates first and second non-inverted voltage signals and first and second inverted voltage signals in response to the feedback voltage signal. The comparator module receives the first and second non-inverted voltage signals and the first and second inverted voltage signals, and provides first and second differential voltage signals corresponding to the first and second non-inverted voltage signals and the first and second inverted voltage signals. The filter module is coupled between the amplifier module and the comparator module, and is operable so as to attenuate high frequency components of the first and second non-inverted voltage signals. As such, the presence of noise in the feedback voltage signal does not affect differential operation of the comparator module.

摘要翻译： 脉冲宽度调制器包括放大器模块，比较器模块和滤波器模块。 放大器模块从无源网络接收反馈电压信号，并响应于反馈电压信号产生第一和第二非反相电压信号以及第一和第二反相电压信号。 比较器模块接收第一和第二非反相电压信号以及第一和第二反相电压信号，并提供对应于第一和第二非反相电压信号以及第一和第二反相电压信号的第一和第二差分电压信号。 滤波器模块耦合在放大器模块和比较器模块之间，并且可操作以便衰减第一和第二非反相电压信号的高频分量。 因此，反馈电压信号中的噪声的存在不会影响比较器模块的差分工作。

公开(公告)号：US20070046358A1

公开(公告)日：2007-03-01

申请号：US11498240

申请日：2006-08-03

申请人： Ko-Cheng Wang ,  Liang-Pin Tai

发明人： Ko-Cheng Wang ,  Liang-Pin Tai

IPC分类号： H03K17/04

CPC分类号： H03K17/693 ,  H03K17/04123 ,  H03K17/0414

摘要： A quick turn on apparatus and method for a NMOSFET switch are used to maintain the gate voltage of the NMOSFET switch non-zero but not enough to turn on the NMOSFET switch, such that the NMOSFET switch turns on more quickly when it is to be turned on. Seamless transition can be further achieved in a single pole double throw switching circuit by using the quick turn on apparatus and method.

摘要翻译： 用于NMOSFET开关的快速启动装置和方法用于将NMOSFET开关的栅极电压保持为非零，但不足以导通NMOSFET开关，使得NMOSFET开关在其被转动时更快地接通 上。 通过使用快速打开设备和方法，可以在单刀双掷切换电路中进一步实现无缝转换。

公开(公告)号：US20090174461A1

公开(公告)日：2009-07-09

申请号：US12382258

申请日：2009-03-12

申请人： Ko-Cheng Wang ,  Liang-Pin Tai

发明人： Ko-Cheng Wang ,  Liang-Pin Tai

IPC分类号： H03K17/687

CPC分类号： H03K17/693 ,  H03K17/04123 ,  H03K17/0414

摘要： A quick turn on apparatus and method for a NMOSFET switch are used to maintain the gate voltage of the NMOSFET switch non-zero but not enough to turn on the NMOSFET switch, such that the NMOSFET switch turns on more quickly when it is to be turned on. Seamless transition can be further achieved in a single pole double throw switching circuit by using the quick turn on apparatus and method.

公开(公告)号：US07576588B2

公开(公告)日：2009-08-18

申请号：US11498240

申请日：2006-08-03

申请人： Ko-Cheng Wang ,  Liang-Pin Tai

发明人： Ko-Cheng Wang ,  Liang-Pin Tai

IPC分类号： H03K17/687 ,  H03K17/04 ,  G11C5/14

CPC分类号： H03K17/693 ,  H03K17/04123 ,  H03K17/0414

摘要： A quick turn on apparatus and method for a NMOSFET switch are used to maintain the gate voltage of the NMOSFET switch non-zero but not enough to turn on the NMOSFET switch, such that the NMOSFET switch turns on more quickly when it is to be turned on. Seamless transition can be further achieved in a single pole double throw switching circuit by using the quick turn on apparatus and method.

摘要翻译： 用于NMOSFET开关的快速启动装置和方法用于将NMOSFET开关的栅极电压保持为非零，但不足以导通NMOSFET开关，使得NMOSFET开关在其被转动时更快地接通 上。 通过使用快速打开设备和方法，可以在单刀双掷切换电路中进一步实现无缝转换。

公开(公告)号：US20090039856A1

公开(公告)日：2009-02-12

申请号：US11905196

申请日：2007-09-28

申请人： Ko-Cheng Wang ,  Liang-Pin Tai

发明人： Ko-Cheng Wang ,  Liang-Pin Tai

IPC分类号： G05F1/44 ,  G05F1/02

CPC分类号： H02M3/156 ,  H02M2001/0009

摘要： A DCR detecting circuit is parallel connected to the inductor of a self-clocking PWM buck converter which performs a trigger control of a PWM signal by an output feedback, to detect the current signal on the inductor to provide a large enough ripple to be combined into the output feedback, so as to enhance the system stability, while remains the small output ripple, without additional power loss.

摘要翻译： DCR检测电路并联到自定时PWM降压转换器的电感器，其通过输出反馈执行PWM信号的触发控制，以检测电感器上的电流信号，以提供足够大的纹波以被组合 输出反馈，从而提高系统的稳定性，同时保持小输出纹波，无需额外的功率损耗。

公开(公告)号：US08525505B2

公开(公告)日：2013-09-03

申请号：US12766246

申请日：2010-04-23

申请人： Ko-Cheng Wang ,  Kuo-Ping Liu ,  Chih-Wei Tseng

发明人： Ko-Cheng Wang ,  Kuo-Ping Liu ,  Chih-Wei Tseng

IPC分类号： G05F1/575

CPC分类号： H02M3/1588 ,  H02M1/14 ,  Y02B70/1466

摘要： A PWM controller and control method for a DC-DC voltage converter filter the high-frequency component of the voltage at the phase node between high-side and low-side elements of the voltage converter to generate a signal synchronous and in phase or out-of-phase with the inductor current of the voltage converter, to achieve a low-ripple output voltage and stable loop control.

摘要翻译： 用于DC-DC电压转换器的PWM控制器和控制方法对电压转换器的高侧和低侧元件之间的相位节点处的电压的高频分量进行滤波，以产生同步和相位或相位的信号， 与电压转换器的电感电流相位，实现低纹波输出电压和稳定的环路控制。

公开(公告)号：US20100283441A1

公开(公告)日：2010-11-11

申请号：US12766246

申请日：2010-04-23

申请人： Ko-Cheng Wang ,  Kuo-Ping Liu ,  Chih-Wei Tseng

发明人： Ko-Cheng Wang ,  Kuo-Ping Liu ,  Chih-Wei Tseng

IPC分类号： G05F1/10

CPC分类号： H02M3/1588 ,  H02M1/14 ,  Y02B70/1466

摘要： A PWM controller and control method for a DC-DC voltage converter filter the high-frequency component of the voltage at the phase node between high-side and low-side elements of the voltage converter to generate a signal synchronous and in phase or out-of-phase with the inductor current of the voltage converter, to achieve a low-ripple output voltage and stable loop control.

摘要翻译： 用于DC-DC电压转换器的PWM控制器和控制方法对电压转换器的高侧和低侧元件之间的相位节点处的电压的高频分量进行滤波，以产生同步和相位或相位的信号， 与电压转换器的电感电流相位，实现低纹波输出电压和稳定的环路控制。

公开(公告)号：US20100066331A1

公开(公告)日：2010-03-18

申请号：US12585474

申请日：2009-09-16

申请人： Chao Chieh Chang ,  Ko-Cheng Wang

发明人： Chao Chieh Chang ,  Ko-Cheng Wang

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： A level-switching device is coupled to an output node of a PWM converter to switch the output voltage of the PWM converter between two levels by switching a MOS. An undershoot/overshoot eliminator is coupled to the MOS for the MOS changing from totally on state to totally off state or vice versa softly when switching the MOS. The feedback signal transition in the level-switching device becomes slower when switching the MOS to eliminate overshoot/undershoot on the output voltage.

摘要翻译： 电平切换装置耦合到PWM转换器的输出节点，通过切换MOS来切换两个电平之间的PWM转换器的输出电压。 下冲/过冲消除器耦合到MOS，用于MOS切换时从MOS完全断开状态或反之亦然。 当切换MOS以消除输出电压上的过冲/下冲时，电平切换装置中的反馈信号转变变慢。