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1. 发明授权

US08368375B2 Switching regulator with transient control function and control circuit and method therefor 失效
标题翻译：具有瞬态控制功能的开关稳压器及其控制电路及其方法
公开(公告)号：US08368375B2
公开(公告)日：2013-02-05
申请号：US12803140
申请日：2010-06-18
申请人： Kuo-Chi Liu , Heng-Sheng Chao
发明人： Kuo-Chi Liu , Heng-Sheng Chao
IPC分类号： G05F1/44
CPC分类号： H02M3/158
摘要： The present invention discloses a switching regulator with transient control function, and a control circuit and a method for controlling the switching regulator. The switching regulator with transient control function includes: a power conversion circuit for receiving an input voltage and converting the input voltage to an output voltage; a feedback circuit for detecting the output voltage and generating a feedback signal representing the output voltage; an output capacitor coupled to an output terminal of the power conversion circuit; and a control circuit for receiving the feedback signal and generating a control signal to control the conversion operation by the power conversion circuit accordingly, wherein the control circuit includes a voltage balancing circuit which discharges the output capacitor when the output voltage is higher than a first predetermined threshold, and charges the output capacitor when the output voltage is lower than a second predetermined threshold.
摘要翻译：本发明公开了一种具有瞬态控制功能的开关调节器，以及用于控制开关调节器的控制电路和方法。具有瞬态控制功能的开关调节器包括：电源转换电路，用于接收输入电压并将输入电压转换成输出电压; 反馈电路，用于检测输出电压并产生表示输出电压的反馈信号; 耦合到所述电力转换电路的输出端的输出电容器; 以及控制电路，用于接收所述反馈信号并产生控制信号以控制所述功率转换电路的转换操作，其中所述控制电路包括电压平衡电路，当所述输出电压高于第一预定值时，对所述输出电容器进行放电阈值，并且当输出电压低于第二预定阈值时对输出电容器充电。

2. 发明授权

US08836309B2 Control device for buck-boost converter 有权
标题翻译：降压 - 升压转换器的控制装置
公开(公告)号：US08836309B2
公开(公告)日：2014-09-16
申请号：US13439240
申请日：2012-04-04
申请人： Wen-Wei Chen , Kuo-Chi Liu
发明人： Wen-Wei Chen , Kuo-Chi Liu
IPC分类号： G05F1/00 , H02M3/158 , G05F1/24
CPC分类号： H02M3/1582
摘要： A control device is disclosed, having a signal generating circuit and a mode decision circuit. The signal generating circuit is used to generate a first control signal and a second control signal according to an output voltage of a buck-boost converter. The first control signal is used to conduct a first switch and a second switch of the buck-boost converter. The second control signal is used to conduct a third switch and a fourth switch of the buck-boost converter. When the duty cycle of the first control signal is greater than a first predetermined value and the duty cycle of the second control signal is less than a second predetermined value, the mode decision circuit configures the signal generating circuit to generate the first control signal and the second control signal with substantially the same duty cycle.
摘要翻译：公开了具有信号发生电路和模式判定电路的控制装置。信号发生电路用于根据降压 - 升压转换器的输出电压产生第一控制信号和第二控制信号。第一控制信号用于导通降压 - 升压转换器的第一开关和第二开关。第二控制信号用于导通降压 - 升压转换器的第三开关和第四开关。当第一控制信号的占空比大于第一预定值并且第二控制信号的占空比小于第二预定值时，模式判定电路将信号发生电路配置为产生第一控制信号，第二控制信号具有基本上相同的占空比。

3. 发明申请

US20130335038A1 BLEEDING CIRCUIT AND METHOD FOR REDUCING POWER CONSUMPTION OF AN EMI FILTER 有权
标题翻译：用于降低EMI滤波器功率消耗的电路和方法
公开(公告)号：US20130335038A1
公开(公告)日：2013-12-19
申请号：US13611416
申请日：2012-09-12
申请人： YEN-TE LEE , KUO-CHI LIU , FU-SHENG TSAI , KUANG-FENG LI , CHUNG-CHENG CHANG , JIUN-HUNG PAN , CHIEN-FU TANG , ISAAC Y. CHEN
发明人： YEN-TE LEE , KUO-CHI LIU , FU-SHENG TSAI , KUANG-FENG LI , CHUNG-CHENG CHANG , JIUN-HUNG PAN , CHIEN-FU TANG , ISAAC Y. CHEN
IPC分类号： H02M1/36
CPC分类号： H02M1/126 , H02M2001/0048 , H02M2001/322 , Y02B70/1491
摘要： A bleeding circuit and method for an electromagnetic interference filter detect whether or not an AC power source connected to the electromagnetic interference filter is removed, establish a discharge path for discharging a capacitor of the electromagnetic interference filter once the connected AC power source is removed, and cut off the discharge path during the AC power source is in connection to the electromagnetic interference filter for decreasing power consumption of the electromagnetic interference filter.
摘要翻译：一种用于电磁干扰滤波器的泄放电路和方法，检测连接到电磁干扰滤波器的AC电源是否被去除，一旦连接的AC电源被去除，建立用于放电电磁干扰滤波器的电容器的放电路径，以及在交流电源期间切断放电路径与电磁干扰滤波器相连，以降低电磁干扰滤波器的功耗。

4. 发明申请

US20130051085A1 POWER SUPPLY, CONTROLLER THEREOF AND CONTROL METHOD THEREOF 有权
标题翻译：电源及其控制器及其控制方法
公开(公告)号：US20130051085A1
公开(公告)日：2013-02-28
申请号：US13477054
申请日：2012-05-22
申请人： Kuang Feng Li , Kuo Chi Liu , I-Fan Chen , Yen-Te Lee
发明人： Kuang Feng Li , Kuo Chi Liu , I-Fan Chen , Yen-Te Lee
IPC分类号： H02M3/335
CPC分类号： H02M1/4225 , H02M3/33523 , H02M2001/0003 , H02M2001/007 , Y02B70/126 , Y02P80/112
摘要： A power supply includes a first circuit, a second circuit, a feedback circuit and a controller. The first circuit has a first switch, and the second circuit has a second switch. The first circuit transforms an input voltage to a middle voltage, and the second circuit transforms the middle voltage to an output voltage. The feedback circuit electrically connects to the controller and the output voltage respectively. The controller includes a first sub-control unit and a second sub-control unit. The first sub-control unit electrically connects to the first switch and the second sub-control unit electrically connects to the second switch. The controller generates a compensation voltage signal for the first sub-control unit and the second sub-control unit to control the first switch and the second switch.
摘要翻译：电源包括第一电路，第二电路，反馈电路和控制器。第一电路具有第一开关，第二电路具有第二开关。第一电路将输入电压转换为中间电压，第二电路将中间电压转换为输出电压。反馈电路分别电连接到控制器和输出电压。控制器包括第一子控制单元和第二子控制单元。第一子控制单元电连接到第一开关，第二子控制单元电连接到第二开关。控制器为第一子控制单元和第二子控制单元生成补偿电压信号，以控制第一开关和第二开关。

5. 发明申请

US20120262142A1 CONTROL DEVICE FOR BUCK-BOOST CONVERTER 有权
标题翻译：用于升压转换器的控制装置
公开(公告)号：US20120262142A1
公开(公告)日：2012-10-18
申请号：US13439240
申请日：2012-04-04
申请人： Wen-Wei Chen , Kuo-Chi Liu
发明人： Wen-Wei Chen , Kuo-Chi Liu
IPC分类号： G05F1/10
CPC分类号： H02M3/1582
摘要： A control device is disclosed, having a signal generating circuit and a mode decision circuit. The signal generating circuit is used to generate a first control signal and a second control signal according to an output voltage of a buck-boost converter. The first control signal is used to conduct a first switch and a second switch of the buck-boost converter. The second control signal is used to conduct a third switch and a fourth switch of the buck-boost converter. When the duty cycle of the first control signal is greater than a first predetermined value and the duty cycle of the second control signal is less than a second predetermined value, the mode decision circuit configures the signal generating circuit to generate the first control signal and the second control signal with substantially the same duty cycle.
摘要翻译：公开了具有信号发生电路和模式判定电路的控制装置。信号发生电路用于根据降压 - 升压转换器的输出电压产生第一控制信号和第二控制信号。第一控制信号用于导通降压 - 升压转换器的第一开关和第二开关。第二控制信号用于导通降压 - 升压转换器的第三开关和第四开关。当第一控制信号的占空比大于第一预定值并且第二控制信号的占空比小于第二预定值时，模式判定电路将信号发生电路配置为产生第一控制信号，第二控制信号具有基本上相同的占空比。

6. 发明申请

US20120105030A1 CONTROL CIRCUIT AND METHOD FOR A CURRENT MODE CONTROLLED POWER CONVERTER 失效
标题翻译：电流模式控制电源转换器的控制电路和方法
公开(公告)号：US20120105030A1
公开(公告)日：2012-05-03
申请号：US13280471
申请日：2011-10-25
申请人： WEN-WEI CHEN , KUO-CHI LIU
发明人： WEN-WEI CHEN , KUO-CHI LIU
IPC分类号： G05F1/10
CPC分类号： H02M3/156 , H02M2001/0025
摘要： A control circuit and method for a current mode controlled power converter to convert an input voltage into an output voltage, dynamically adjust the peak or the valley of a ramp signal depending on either or both of the input voltage and the output voltage. Under different conditions of the input voltage and the output voltage, the current mode controlled power converter can generate stable output voltages with an invariant inductor and an invariant compensation circuit, without sub-harmonic which otherwise may happen.
摘要翻译：一种用于电流模式控制的功率转换器将输入电压转换为输出电压的控制电路和方法，根据输入电压和输出电压中的任一个或两者动态地调整斜坡信号的峰值或谷值。在输入电压和输出电压的不同条件下，电流模式受控功率转换器可以使用不变电感器和不变补偿电路产生稳定的输出电压，否则可能会发生次谐波。

7. 发明申请

US20110031951A1 FREQUENCY MODULATION CONTROL OF A BUCK-BOOST POWER CONVERTER 失效
标题翻译： BUCK-BOOST功率转换器的频率调制控制
公开(公告)号：US20110031951A1
公开(公告)日：2011-02-10
申请号：US12849173
申请日：2010-08-03
申请人： WEN-WEI CHEN , KUO-CHI LIU
发明人： WEN-WEI CHEN , KUO-CHI LIU
IPC分类号： G05F1/10
CPC分类号： H02M3/1582 , H02M2001/0032 , Y02B70/16
摘要： A control circuit and method are proposed to generate a control signal to operate a buck-boost power stage of a buck-boost power converter to convert an input voltage to an output voltage. The control circuit and method detect the output voltage to generate an error signal, control the frequency of two ramp signals according to the error signal, generate two pulse width modulation signals according to the error signal and the two ramp signals, and generate the control signal according to the two pulse width modulation signals. When the loading of the buck-boost power converter transits from heavy to light, the frequency of the two ramp signals is decreased to improve the efficiency of the buck-boost power converter. The peaks and valleys of the two ramp signals may be adjusted by signals related to the input voltage and the output voltage.
摘要翻译：提出了一种控制电路和方法来产生控制信号以操作降压 - 升压功率转换器的降压 - 升压功率级，以将输入电压转换为输出电压。控制电路和方法检测输出电压产生误差信号，根据误差信号控制两个斜坡信号的频率，根据误差信号和两个斜坡信号产生两个脉宽调制信号，并产生控制信号根据两个脉宽调制信号。当降压 - 升压功率转换器的负载从重到轻时，两个斜坡信号的频率降低，以提高降压 - 升压功率转换器的效率。可以通过与输入电压和输出电压相关的信号来调整两个斜坡信号的峰值和谷值。

8. 发明授权

US09899883B2 Wireless power transfer system having positioning function and positioning device and method therefor 有权
公开(公告)号：US09899883B2
公开(公告)日：2018-02-20
申请号：US14593181
申请日：2015-01-09
申请人： Kuo-Chi Liu
发明人： Kuo-Chi Liu
IPC分类号： H01F27/42 , H01F37/00 , H01F38/00 , H02J50/90 , H02J50/10
CPC分类号： H02J50/90 , H02J50/10
摘要： The present invention discloses a wireless power transfer system having positioning function, and a positioning device and a method therefor. In the positioning method, a power transmission side keeps generating a stable power; a power receiving side is moved relatively to the power transmission side and generates a corresponding induced voltage. An indication signal related to the induced voltage is generated by detecting the induced voltage, and the indication signal provides a suggestion to a user as to how the power receiving side should be moved relatively to the power transmission side to be closer to an optimal power transfer position.

9. 发明申请

US20160204616A1 WIRELESS POWER TRANSFER SYSTEM HAVING POSITIONING FUNCTION AND POSITIONING DEVICE AND METHOD THEREFOR 有权
标题翻译：具有定位功能和定位装置的无线电力传输系统及其方法
公开(公告)号：US20160204616A1
公开(公告)日：2016-07-14
申请号：US14593181
申请日：2015-01-09
申请人： Kuo-Chi Liu
发明人： Kuo-Chi Liu
IPC分类号： H02J5/00
CPC分类号： H02J50/90 , H02J50/10
摘要： The present invention discloses a wireless power transfer system having positioning function, and a positioning device and a method therefor. In the positioning method, a power transmission side keeps generating a stable power; a power receiving side is moved relatively to the power transmission side and generates a corresponding induced voltage. An indication signal related to the induced voltage is generated by detecting the induced voltage, and the indication signal provides a suggestion to a user as to how the power receiving side should be moved relatively to the power transmission side to be closer to an optimal power transfer position.
摘要翻译：本发明公开了一种具有定位功能的无线电力传送系统及其定位装置及其方法。在定位方法中，电力传输侧保持产生稳定的电力; 电力接收侧相对于电力传输侧移动并产生相应的感应电压。通过检测感应电压来产生与感应电压相关的指示信号，并且指示信号向用户提供关于如何将电力接收侧相对于电力传输侧移动以更接近于最佳电力传输的建议位置。

10. 发明授权

US08456094B2 Light emitting device open/short detection circuit 有权
标题翻译：发光装置开/短检测电路
公开(公告)号：US08456094B2
公开(公告)日：2013-06-04
申请号：US13136383
申请日：2011-07-29
申请人： Pei-Cheng Huang , Kuo-Chi Liu , Ming-Hsueh Lee , Shih-Hua Chien , Chao-Hua Wu
发明人： Pei-Cheng Huang , Kuo-Chi Liu , Ming-Hsueh Lee , Shih-Hua Chien , Chao-Hua Wu
IPC分类号： H05B37/00
CPC分类号： H05B33/089
摘要： The present invention discloses a light emitting device open/short detection circuit, which is used for detecting at least one light emitting device string open/short. Each light emitting device string has a first end and a second end, wherein the first end is coupled to a voltage supply circuit to supply electrical power to the light emitting devices. The open/short detection circuit includes: an abnormal voltage detection circuit coupled to the light emitting device strings for receiving voltages of the second ends respectively and generating an abnormal voltage detection signal; a voltage setting circuit coupled to the abnormal voltage detection circuit for setting an abnormal reference level; and a determination circuit coupled to the voltage setting circuit. When the abnormal voltage detection signal is equal to or over the abnormal reference level, the determination circuit generates an open/short detection signal for an abnormal condition detected.
摘要翻译：本发明公开了一种用于检测至少一个发光装置串开/短的发光装置开/短检测电路。每个发光器件串具有第一端和第二端，其中第一端耦合到电压供应电路以向发光器件供电。开/短检测电路包括：异常电压检测电路，耦合到发光器件串，用于分别接收第二端的电压并产生异常电压检测信号; 电压设定电路，与所述异常电压检测电路耦合，用于设定异常参考电平; 以及耦合到电压设置电路的确定电路。当异常电压检测信号等于或超过异常参考电平时，确定电路产生检测到的异常状态的开/短检测信号。

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