专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20120146608A1 VOLTAGE REGULATOR AND PULSE WIDTH MODULATION SIGNAL GENERATION METHOD THEREOF 有权
标题翻译：电压调节器及其脉宽调制信号发生方法
公开(公告)号：US20120146608A1
公开(公告)日：2012-06-14
申请号：US13038660
申请日：2011-03-02
申请人： Yi-Cheng WAN , Jian-Rong HUANG , Chien-Hui WANG , Cheng-Feng CHUNG
发明人： Yi-Cheng WAN , Jian-Rong HUANG , Chien-Hui WANG , Cheng-Feng CHUNG
IPC分类号： G05F1/618
CPC分类号： H02M3/156
摘要： In a PWM signal generation method of a voltage regulator, an output sense signal, a first ramp signal and a second ramp signal are provided. A first time point of the first ramp signal crossing with the output sense signal is used to determine a start point of an ON-time of a PWM signal, and a second time point of the second ramp signal crossing with the output sense signal is used to determine an end point of the ON-time of the PWM signal. Moreover, the first ramp signal is reset to a reference voltage at the first time point and then maintained at the reference voltage, and further ramps down starting from the end point of the ON-time. The second ramp signal ramps up starting from the start point of the ON-time, and then is reset to a preset voltage at the second time point.
摘要翻译：在电压调节器的PWM信号生成方法中，提供输出检测信号，第一斜坡信号和第二斜坡信号。使用与输出感测信号交叉的第一斜坡信号的第一时间点来确定PWM信号的导通时间的起始点，并且使用与输出感测信号交叉的第二斜坡信号的第二时间点以确定PWM信号的接通时间的终点。此外，第一斜坡信号在第一时间点被复位到参考电压，然后保持在参考电压，并且进一步从导通时间的终点开始下降。第二斜坡信号从接通时间的起点开始上升，然后在第二时间点被复位到预设电压。

2. 发明授权

US08917072B2 Control circuit and method for providing a signal for a PWM voltage regulator to convert an input voltage into an output voltage 有权
标题翻译：用于为PWM电压调节器提供信号以将输入电压转换为输出电压的控制电路和方法
公开(公告)号：US08917072B2
公开(公告)日：2014-12-23
申请号：US13486344
申请日：2012-06-01
申请人： Yi-Cheng Wan , Jian-Rong Huang , Wen-Wei Chen
发明人： Yi-Cheng Wan , Jian-Rong Huang , Wen-Wei Chen
IPC分类号： G05F1/00 , H02M3/156
CPC分类号： H02M3/156 , H02M2003/1566
摘要： A control circuit and method for a PWM voltage regulator combine a high frequency feedback technique with a constant on-time or constant off-time topology to improve the transient performance of the PWM voltage regulator. The PWM voltage regulator generates a constant on-time or constant off-time depending on a current for generating a PWM signal, and dynamically adjusts the current according to the droop-voltage at its output during a transient period. Therefore, the PWM voltage regulator boosts its transient response without any threshold for load step detection.
摘要翻译：用于PWM电压调节器的控制电路和方法将高频反馈技术与恒定的导通时间或恒定关断时间拓扑结合起来，以改善PWM电压调节器的瞬态性能。 PWM电压调节器根据用于产生PWM信号的电流产生恒定的导通时间或恒定关断时间，并且在瞬态期间根据其输出端的下垂电压来动态调整电流。因此，PWM电压调节器可以提高其瞬态响应，而无需任何负载阶跃检测阈值。

3. 发明申请

US20120306586A1 CONTROL CIRCUIT AND METHOD FOR A PWM VOLTAGE REGULATOR 有权
标题翻译： PWM电压调节器的控制电路和方法
公开(公告)号：US20120306586A1
公开(公告)日：2012-12-06
申请号：US13486344
申请日：2012-06-01
申请人： Yi-Cheng WAN , Jian-Rong Huang , Wen-Wei Chen
发明人： Yi-Cheng WAN , Jian-Rong Huang , Wen-Wei Chen
IPC分类号： H03K7/08
CPC分类号： H02M3/156 , H02M2003/1566
摘要： A control circuit and method for a PWM voltage regulator combine a high frequency feedback technique with a constant on-time or constant off-time topology to improve the transient performance of the PWM voltage regulator. The PWM voltage regulator generates a constant on-time or constant off-time depending on a current for generating a PWM signal, and dynamically adjusts the current according to the droop-voltage at its output during a transient period. Therefore, the PWM voltage regulator boosts its transient response without any threshold for load step detection.
摘要翻译：用于PWM电压调节器的控制电路和方法将高频反馈技术与恒定的导通时间或恒定关断时间拓扑结合起来，以改善PWM电压调节器的瞬态性能。 PWM电压调节器根据用于产生PWM信号的电流产生恒定的导通时间或恒定关断时间，并且在瞬态期间根据其输出端的下垂电压来动态调整电流。因此，PWM电压调节器可以提高其瞬态响应，而无需任何负载阶跃检测阈值。

4. 发明申请

US20110304308A1 Adaptive constant on time adjustment circuit and mathod for adaptively adjusting constant on time 有权
标题翻译：自适应恒定时间调节电路和自适应调整恒定导通时间的方法
公开(公告)号：US20110304308A1
公开(公告)日：2011-12-15
申请号：US12928097
申请日：2010-12-03
申请人： Yi-Cheng Wan , Hung-Chun Peng , Jian-Rong Huang , Kuo-Lung Tseng
发明人： Yi-Cheng Wan , Hung-Chun Peng , Jian-Rong Huang , Kuo-Lung Tseng
IPC分类号： G05F1/10
CPC分类号： H02M3/1588 , H02M2001/0003 , Y02B70/1466
摘要： The present invention discloses an adaptive constant ON time adjustment circuit, which generates a square wave signal having a constant normal ON time during normal operation, for controlling a power stage circuit to convert an input voltage to an output voltage. When the output voltage is shifted from low to high, during the transient period, the ON time is adjusted longer; and when the output voltage is shifted from high to low, during the transient period, the ON time is adjusted shorter.
摘要翻译：本发明公开了一种自适应常数导通时间调整电路，其在正常操作期间产生具有恒定正常导通时间的方波信号，用于控制功率级电路将输入电压转换为输出电压。当输出电压从低电平变化到高电平时，在过渡期间，ON时间被调整得更长; 并且当输出电压从高电平变为低电平时，在过渡期间，导通时间被调整得较短。

5. 发明授权

US08766617B2 Method for improving voltage identification transient response and voltage regulator 有权
标题翻译：改善电压识别瞬态响应和电压调节器的方法
公开(公告)号：US08766617B2
公开(公告)日：2014-07-01
申请号：US13025977
申请日：2011-02-11
申请人： Yi-Cheng Wan , Jian-Rong Huang , Cheng-Feng Chung , Hung-Chun Peng
发明人： Yi-Cheng Wan , Jian-Rong Huang , Cheng-Feng Chung , Hung-Chun Peng
IPC分类号： G05F1/00 , H02M3/158 , H02M3/156 , H02M1/00
CPC分类号： H02M3/1588 , H02M2001/0009 , H02M2003/1566 , Y02B70/1466
摘要： An exemplary method for improving voltage identification (VID) transient response is adapted to a voltage regulator and includes steps of: continuously sensing an inductor current of the voltage regulator to thereby output a current sense signal; during a steady state operation period, sampling the current sense signal to thereby obtain a sampling result for providing a droop control signal; after entering a VID transient period from the steady state operation period, holding the sampling result for providing the droop control signal; and taking the droop control signal as a consideration factor of producing a pulse width modulation signal to regulate an output voltage of the voltage regulator.
摘要翻译：用于改善电压识别（VID）瞬态响应的示例性方法适用于电压调节器，并且包括以下步骤：连续感测电压调节器的电感器电流，从而输出电流感测信号; 在稳态运行期间，对电流检测信号进行采样，从而获得用于提供下垂控制信号的采样结果; 在从稳态运行期间进入VID暂态期后，保持用于提供下降控制信号的采样结果; 并且采用下垂控制信号作为产生脉宽调制信号的一个考虑因素，以调节电压调节器的输出电压。

6. 发明申请

US20140021929A1 MULTI-PHASE SWITCHING REGULATOR AND DROOP CIRCUIT THEREFOR 有权
标题翻译：多相开关稳压器及其驱动电路
公开(公告)号：US20140021929A1
公开(公告)日：2014-01-23
申请号：US13938154
申请日：2013-07-09
申请人： Yu-Ta Lin , Jian-Rong Huang , Yi-Cheng Wan , Chien-Hui Wang , Yuan-Wen Hsiao
发明人： Yu-Ta Lin , Jian-Rong Huang , Yi-Cheng Wan , Chien-Hui Wang , Yuan-Wen Hsiao
IPC分类号： G05F1/10
CPC分类号： G05F1/10 , H02M3/1584 , H02M2001/0009
摘要： The present invention provides a multi-phase switching regulator and a droop circuit for use in the multi-phase switching regulator. The multi-phase switching regulator generates pulse width modulation (PWM) signals according to an output voltage and a droop signal, to drive a plurality of switching sets to convert an input voltage to the output voltage. The droop circuit detects the sum of the currents generated by the plurality of switching sets and provides the droop signal which is related to the sum of the currents to the multi-phase switching regulator. The droop signal can be used for over current protection (OCP) or for the droop control.
摘要翻译：本发明提供一种用于多相开关调节器的多相开关调节器和下垂电路。多相开关调节器根据输出电压和下降信号产生脉冲宽度调制（PWM）信号，以驱动多个开关组以将输入电压转换为输出电压。下垂电路检测由多个开关组产生的电流的和，并提供与多相开关调节器的电流之和相关的下降信号。下垂信号可用于过流保护（OCP）或下垂控制。

7. 发明申请

US20130057237A1 MULTI-PHASE SWITCHING REGULATOR AND DROOP CIRCUIT THEREFOR 审中-公开
标题翻译：多相开关稳压器及其驱动电路
公开(公告)号：US20130057237A1
公开(公告)日：2013-03-07
申请号：US13226145
申请日：2011-09-06
申请人： An-Tung Chen , Yuan-Wen Hsiao , Yi-Cheng Wan
发明人： An-Tung Chen , Yuan-Wen Hsiao , Yi-Cheng Wan
IPC分类号： G05F1/00 , G05F1/10
CPC分类号： H02M3/1584 , H02M2001/0003
摘要： The present invention discloses a multi-phase switching regulator and a droop circuit therefor. The droop circuit includes: multiple first resistors, which are coupled to corresponding phase nodes respectively to sense current through the phase nodes; a second resistor, which is coupled to the multiple first resistors; an error amplifier circuit, which has an inverting input end and a non-inverting input end, wherein the inverting input end is coupled to the second resistor and an output end of the error amplifier circuit, and the non-inverting input end is coupled to an output node; and a droop capacitor, which is coupled between the second resistor and the output node; wherein the droop circuit provides the droop signal according to a voltage drop across the second resistor or current through the second resistor.
摘要翻译：本发明公开了一种多相开关调节器及其下垂电路。下垂电路包括：多个第一电阻器，其分别耦合到对应的相位节点以感测通过相位节点的电流; 第二电阻器，其耦合到所述多个第一电阻器; 误差放大器电路，其具有反相输入端和非反相输入端，其中反相输入端耦合到第二电阻器和误差放大器电路的输出端，并且非反相输入端耦合到输出节点; 以及下降电容器，其耦合在所述第二电阻器和所述输出节点之间; 其中所述下降电路根据所述第二电阻器上的电压降或通过所述第二电阻器的电流来提供所述下降信号。

8. 发明授权

US08917077B2 Multi-phase switching regulator and droop circuit therefor 有权
标题翻译：多相开关调节器及其下垂电路
公开(公告)号：US08917077B2
公开(公告)日：2014-12-23
申请号：US13938154
申请日：2013-07-09
申请人： Yu-Ta Lin , Jian-Rong Huang , Yi-Cheng Wan , Chien-Hui Wang , Yuan-Wen Hsiao
发明人： Yu-Ta Lin , Jian-Rong Huang , Yi-Cheng Wan , Chien-Hui Wang , Yuan-Wen Hsiao
IPC分类号： G05F1/00 , G05F1/10
CPC分类号： G05F1/10 , H02M3/1584 , H02M2001/0009
摘要： The present invention provides a multi-phase switching regulator and a droop circuit for use in the multi-phase switching regulator. The multi-phase switching regulator generates pulse width modulation (PWM) signals according to an output voltage and a droop signal, to drive a plurality of switching sets to convert an input voltage to the output voltage. The droop circuit detects the sum of the currents generated by the plurality of switching sets and provides the droop signal which is related to the sum of the currents to the multi-phase switching regulator. The droop signal can be used for over current protection (OCP) or for the droop control.
摘要翻译：本发明提供一种用于多相开关调节器的多相开关调节器和下垂电路。多相开关调节器根据输出电压和下降信号产生脉冲宽度调制（PWM）信号，以驱动多个开关组以将输入电压转换为输出电压。下垂电路检测由多个开关组产生的电流的和，并提供与多相开关调节器的电流之和相关的下降信号。下垂信号可用于过流保护（OCP）或下垂控制。

9. 发明授权

US08836307B2 Voltage regulator and pulse width modulation signal generation method thereof 有权
标题翻译：电压调节器及其脉宽调制信号的产生方法
公开(公告)号：US08836307B2
公开(公告)日：2014-09-16
申请号：US13038660
申请日：2011-03-02
申请人： Yi-Cheng Wan , Jian-Rong Huang , Chien-Hui Wang , Cheng-Feng Chung
发明人： Yi-Cheng Wan , Jian-Rong Huang , Chien-Hui Wang , Cheng-Feng Chung
IPC分类号： G05F1/00 , H02M3/156
CPC分类号： H02M3/156
摘要： In a PWM signal generation method of a voltage regulator, an output sense signal, a first ramp signal and a second ramp signal are provided. A first time point of the first ramp signal crossing with the output sense signal is used to determine a start point of an ON-time of a PWM signal, and a second time point of the second ramp signal crossing with the output sense signal is used to determine an end point of the ON-time of the PWM signal. Moreover, the first ramp signal is reset to a reference voltage at the first time point and then maintained at the reference voltage, and further ramps down starting from the end point of the ON-time. The second ramp signal ramps up starting from the start point of the ON-time, and then is reset to a preset voltage at the second time point.
摘要翻译：在电压调节器的PWM信号生成方法中，提供输出检测信号，第一斜坡信号和第二斜坡信号。使用与输出感测信号交叉的第一斜坡信号的第一时间点来确定PWM信号的导通时间的起始点，并且使用与输出感测信号交叉的第二斜坡信号的第二时间点以确定PWM信号的接通时间的终点。此外，第一斜坡信号在第一时间点被复位到参考电压，然后保持在参考电压，并且进一步从导通时间的终点开始下降。第二斜坡信号从接通时间的起点开始上升，然后在第二时间点被复位到预设电压。

10. 发明授权

US08508206B2 Adaptive constant on time adjustment circuit and method for adaptively adjusting constant on time 有权
标题翻译：自适应恒定时间调节电路及其自适应调整方法
公开(公告)号：US08508206B2
公开(公告)日：2013-08-13
申请号：US12928097
申请日：2010-12-03
申请人： Yi-Cheng Wan , Hung-Chun Peng , Jian-Rong Huang , Kuo-Lung Tseng
发明人： Yi-Cheng Wan , Hung-Chun Peng , Jian-Rong Huang , Kuo-Lung Tseng
IPC分类号： G05F1/40
CPC分类号： H02M3/1588 , H02M2001/0003 , Y02B70/1466
摘要： The present invention discloses an adaptive constant ON time adjustment circuit, which generates a square wave signal having a constant normal ON time during normal operation, for controlling a power stage circuit to convert an input voltage to an output voltage. When the output voltage is shifted from low to high, during the transient period, the ON time is adjusted longer; and when the output voltage is shifted from high to low, during the transient period, the ON time is adjusted shorter.
摘要翻译：本发明公开了一种自适应常数接通时间调整电路，其在正常操作期间产生具有恒定正常导通时间的方波信号，用于控制功率级电路将输入电压转换为输出电压。当输出电压从低电平变化到高电平时，在过渡期间，ON时间被调整得更长; 并且当输出电压从高电平变为低电平时，在过渡期间，导通时间被调整得较短。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式