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1. 发明授权

US08582324B2 Pulse width modulation controller and method for output ripple reduction of a jittering frequency switching power supply 有权
标题翻译：脉宽调制控制器和抖动频率开关电源输出纹波降低的方法
公开(公告)号：US08582324B2
公开(公告)日：2013-11-12
申请号：US13361412
申请日：2012-01-30
申请人： Kun-Yu Lin , Tzu-Chen Lin , Pei-Lun Huang
发明人： Kun-Yu Lin , Tzu-Chen Lin , Pei-Lun Huang
IPC分类号： H02M1/12 , H02M3/335
CPC分类号： H02M3/33507 , H02M1/14 , H02M2001/0025
摘要： A pulse width modulation controller and method for output ripple reduction of a jittering frequency switching power supply detect the current of a power switch of the switching power supply to generate a current sense signal, and adjust the gain or the level of the current sense signal according to the switching frequency of the power switch to adjust the on time of the power switch, to reduce the output ripple of the switching power supply caused by the jittering frequency of the switching power supply.
摘要翻译：用于抖动频率开关电源的输出纹波降低的脉宽调制控制器和方法检测开关电源的电源开关的电流以产生电流检测信号，并根据电流检测信号的电平来调整电流检测信号的增益或电平到开关频率的电源开关调节电源开关的导通时间，降低开关电源的输出纹波，由开关电源的抖动频率引起。

2. 发明申请

US20120194162A1 PULSE WIDTH MODULATION CONTROLLER AND METHOD FOR OUTPUT RIPPLE REDUCTION OF A JITTERING FREQUENCY SWITCHING POWER SUPPLY 有权
标题翻译：脉冲宽度调制控制器和输出纹波减少抖动频率切换电源的方法
公开(公告)号：US20120194162A1
公开(公告)日：2012-08-02
申请号：US13361412
申请日：2012-01-30
申请人： Kun-Yu LIN , Tzu-Chen LIN , Pei-Lun HUANG
发明人： Kun-Yu LIN , Tzu-Chen LIN , Pei-Lun HUANG
IPC分类号： G05F3/02
CPC分类号： H02M3/33507 , H02M1/14 , H02M2001/0025
摘要： A pulse width modulation controller and method for output ripple reduction of a jittering frequency switching power supply detect the current of a power switch of the switching power supply to generate a current sense signal, and adjust the gain or the level of the current sense signal according to the switching frequency of the power switch to adjust the on time of the power switch, to reduce the output ripple of the switching power supply caused by the jittering frequency of the switching power supply.
摘要翻译：用于抖动频率开关电源的输出纹波降低的脉宽调制控制器和方法检测开关电源的电源开关的电流以产生电流检测信号，并根据电流检测信号的电平来调整电流检测信号的增益或电平到开关频率的电源开关调节电源开关的导通时间，降低开关电源的输出纹波，由开关电源的抖动频率引起。

3. 发明申请

US20110169456A1 SWITCH EMBEDDED INTEGRATED CIRCUIT AND METHOD FOR BATTERY PROTECTION 失效
标题翻译：开关嵌入式集成电路和电池保护方法
公开(公告)号：US20110169456A1
公开(公告)日：2011-07-14
申请号：US12978734
申请日：2010-12-27
申请人： CHIN-HUI WANG , ZHENG-LIN PU , YING-JIE HAN , HUI WANG
发明人： CHIN-HUI WANG , ZHENG-LIN PU , YING-JIE HAN , HUI WANG
IPC分类号： H02J7/00
CPC分类号： H02J7/0031 , H02J2007/0037 , H02J2007/004
摘要： A switch embedded integrated circuit for battery protection includes a MOSFET having a body diode, and a control logic circuit for switching the MOSFET and the direction of the body diode to control the charge current to and the discharge current from a battery. The control logic circuit turns off the MOSFET once any abnormal operation such as over-voltage and under-voltage happens, and turns on the MOSFET according to an OVPR threshold, an OVPR delay time, an UVPR threshold and an UVPR delay time. The OVPR threshold and the OVPR delay time are determined depending on the battery being coupled to a load or a charger, or floating.
摘要翻译：用于电池保护的开关式嵌入式集成电路包括具有体二极管的MOSFET，以及用于切换MOSFET和体二极管的方向的控制逻辑电路，以控制来自电池的充电电流和放电电流。一旦发生过电压和欠压等异常操作，控制逻辑电路会关断MOSFET，并根据OVPR阈值，OVPR延迟时间，UVPR阈值和UVPR延迟时间打开MOSFET。 OVPR阈值和OVPR延迟时间取决于耦合到负载或充电器的电池或浮动。

4. 发明授权

US09006991B2 State cycling apparatus and method, and control circuit for a lamp 有权
公开(公告)号：US09006991B2
公开(公告)日：2015-04-14
申请号：US13610194
申请日：2012-09-11
申请人： Chin-Hui Wang , Peng-Ju Lan , Chen-Jie Ruan
发明人： Chin-Hui Wang , Peng-Ju Lan , Chen-Jie Ruan
IPC分类号： H05B33/08 , H05B37/02
CPC分类号： H05B33/0842 , H05B37/029
摘要： A state cycling apparatus uses a capacitor instead of complicated and expensive microcontroller to fulfill a state cycling function of a system. The state cycling apparatus includes an internal circuit in the system connected to the capacitor. In a first embodiment, the internal circuit reads the voltage level on the capacitor at power on to determine a current state for the system, and writes the voltage level corresponding to a next state of the system to the capacitor. In a second embodiment, the system reads the state data stored in the internal circuit to determine a current state for the system at power on, the capacitor is charged during the system is under power on, and the capacitor provides power for the internal circuit to store a state data after the system is powered off.

5. 发明授权

US09000682B2 Dimming circuit and method for LEDs 有权
标题翻译： LED调光电路及方法
公开(公告)号：US09000682B2
公开(公告)日：2015-04-07
申请号：US13827279
申请日：2013-03-14
申请人： Richpower Microelectronics Corporation
发明人： Chen-Jie Ruan , Chin-Hui Wang , Peng-Ju Lan
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36 , H05B33/08
CPC分类号： H05B37/02 , H05B33/0809 , H05B33/0815
摘要： A dimming circuit and method for a LED provide a first driving voltage or a second driving voltage according to a dimming signal provided by a functional IC to enable or disable the LED. The values of the first and second driving voltages are controlled so that overstressing of the LED is avoided while the functional IC is capable of working even when the LED is off. The LED's life time is thus prolonged.
摘要翻译：用于LED的调光电路和方法根据由功能IC提供的调光信号提供第一驱动电压或第二驱动电压以启用或禁用LED。控制第一和第二驱动电压的值，使得即使当LED熄灭时功能IC也能够工作，避免了LED的过应力。 LED的使用寿命因此延长。

6. 发明授权

US08824172B2 Apparatus and method for standby power reduction of a flyback power converter 有权
标题翻译：反激式功率转换器的待机功率降低的装置和方法
公开(公告)号：US08824172B2
公开(公告)日：2014-09-02
申请号：US12852628
申请日：2010-08-09
申请人： Sheng-Hua Chen , Tzu-Chen Lin , Pei-Lun Huang
发明人： Sheng-Hua Chen , Tzu-Chen Lin , Pei-Lun Huang
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： An apparatus and method for a flyback power converter reduce the standby output voltage of the flyback power converter by switching the reference voltage provided by a shunt regulator of the flyback power converter or the ratio of voltage divider resistors of the shunt regulator, to reduce the standby power consumption by an output feedback circuit of the flyback power converter, the shunt regulator, and the voltage divider resistors, and thereby improve the power loss of the flyback power converter in standby mode.
摘要翻译：用于回扫功率转换器的装置和方法通过切换由回扫功率转换器的并联调节器提供的参考电压或分流调节器的分压电阻器的比例来减小反激式功率转换器的备用输出电压，以减少待机反激式功率转换器的输出反馈电路，分流调节器和分压电阻器的功耗，从而提高回扫功率转换器在待机模式下的功率损耗。

7. 发明授权

US08710870B2 Power supply input voltage detection circuit 失效
标题翻译：电源输入电压检测电路
公开(公告)号：US08710870B2
公开(公告)日：2014-04-29
申请号：US13373271
申请日：2011-11-09
申请人： Hsin-Yi Wu , Chih-Feng Huang
发明人： Hsin-Yi Wu , Chih-Feng Huang
IPC分类号： H03K5/22
CPC分类号： H03K5/153
摘要： The present invention discloses a power supply input voltage detection circuit. The power supply converts an input voltage to an output voltage by a transformer which includes a primary winding and a secondary winding. The primary winding is coupled to a power switch, which receives a switching signal to adjust the output voltage. The power switch is coupled to a sensing circuit; when the power switch turns ON, the sensing circuit generates a current sense signal according to current through the primary winding. The input voltage detection circuit includes: a rising time detection circuit, which detects a period, of time during which the current sense signal rises from a low reference level to a high reference level to generate a timing signal; and a determination circuit, which generates a determination signal according to the timing signal for determining whether the input signal is a high voltage or a low voltage.
摘要翻译：本发明公开了一种电源输入电压检测电路。电源通过包括初级绕组和次级绕组的变压器将输入电压转换为输出电压。初级绕组耦合到电源开关，其接收切换信号以调节输出电压。电源开关耦合到感测电路; 当电源开关接通时，感测电路根据通过初级绕组的电流产生电流检测信号。输入电压检测电路包括：上升时间检测电路，其检测电流检测信号从低参考电平上升到高参考电平的时间段，以产生定时信号; 以及确定电路，其根据用于确定输入信号是高电压还是低电压的定时信号产生确定信号。

8. 发明申请

US20130026943A1 STATE CYCLING APPARATUS AND METHOD, AND CONTROL CIRCUIT FOR A LAMP 审中-公开
公开(公告)号：US20130026943A1
公开(公告)日：2013-01-31
申请号：US13610176
申请日：2012-09-11
申请人： CHIN-HUI WANG , PENG-JU LAN , CHEN-JIE RUAN
发明人： CHIN-HUI WANG , PENG-JU LAN , CHEN-JIE RUAN
IPC分类号： H05B37/02
CPC分类号： H05B33/0842 , H05B37/029
摘要： A state cycling apparatus uses a capacitor instead of complicated and expensive microcontroller to fulfill a state cycling function of a system. The state cycling apparatus includes an internal circuit in the system connected to the capacitor. In a first embodiment, the internal circuit reads the voltage level on the capacitor at power on to determine a current state for the system, and writes the voltage level corresponding to a next state of the system to the capacitor. In a second embodiment, the system reads the state data stored in the internal circuit to determine a current state for the system at power on, the capacitor is charged during the system is under power on, and the capacitor provides power for the internal circuit to store a state data after the system is powered off.

9. 发明授权

US08320087B2 Switching regulator control circuit 有权
标题翻译：开关稳压器控制电路
公开(公告)号：US08320087B2
公开(公告)日：2012-11-27
申请号：US12928540
申请日：2010-12-14
申请人： Hung-Lin Lin
发明人： Hung-Lin Lin
IPC分类号： H02H9/02
CPC分类号： H02M1/32 , H02H7/12 , H02M3/33507
摘要： The present invention discloses a switching regulator control circuit which distinguishes the output short-circuit condition, which imposes immediate danger, from other mild over current conditions. The switching regulator control circuit includes: an over current judgment circuit comparing a current sense signal with a current limit to generate an over current indication signal; a time comparison circuit comparing the over current indication signal with a clock signal to generate an output short-circuit indication signal; and a timer receiving the over current indication signal and the output short-circuit indication signal, wherein when the output short-circuit indication signal does not indicate output short-circuit, the timer counts a first time period, and when the output short-circuit indication signal indicates output short-circuit, the timer counts a second time period shorter than the first time period, for better safety protection.
摘要翻译：本发明公开了一种开关调节器控制电路，其将来自其他轻度过电流条件的即时危险的输出短路状况区分开。开关稳压器控制电路包括：过电流判断电路，将电流检测信号与电流限制进行比较，以产生过电流指示信号; 时间比较电路，将过电流指示信号与时钟信号进行比较，生成输出短路指示信号; 以及接收过电流指示信号和输出短路指示信号的定时器，其中当输出短路指示信号不指示输出短路时，定时器计数第一时间段，并且当输出短路指示信号表示输出短路，定时器计数比第一个时间段短的第二个时间段，以便更好的安全保护。

10. 发明申请

US20110012554A1 APPARATUS AND METHOD FOR IMPROVING THE STANDBY EFFICIENCY OF A CHARGER, AND ULTRA LOW STANDBY POWER CHARGER 审中-公开
标题翻译：用于提高充电器的待机效率的装置和方法以及超低功耗充电器
公开(公告)号：US20110012554A1
公开(公告)日：2011-01-20
申请号：US12832441
申请日：2010-07-08
申请人： KUN-YU LIN , TZU-CHEN LIN , PEI-LUN HUANG
发明人： KUN-YU LIN , TZU-CHEN LIN , PEI-LUN HUANG
IPC分类号： H02J7/00
CPC分类号： H02M3/33507 , H02J7/0052 , H02J9/005 , H02J2007/0059 , H02M1/36 , H02M2001/0032 , Y02B70/16
摘要： A charger has two pins for connecting with a battery therebetween, and an apparatus and method are proposed to determine to wake up or turn off the charger according to a voltage or a current detected from the two pins, to reduce the standby power consumption of the charger.
摘要翻译：充电器具有用于与其间的电池连接的两个引脚，并且提出了根据从两个引脚检测到的电压或电流来确定唤醒或关闭充电器的装置和方法，以减少充电器。

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