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11. 发明授权

US08576595B2 Method and apparatus of providing a biased current limit for limiting maximum output power of power converters 有权
标题翻译：提供用于限制功率转换器的最大输出功率的偏置电流限制的方法和装置
公开(公告)号：US08576595B2
公开(公告)日：2013-11-05
申请号：US13237957
申请日：2011-09-21
申请人： Shao-Chun Huang , Chien-Tsun Hsu , Jian-Ming Fu , Wei-Hsuan Huang , Ta-Yung Yang
发明人： Shao-Chun Huang , Chien-Tsun Hsu , Jian-Ming Fu , Wei-Hsuan Huang , Ta-Yung Yang
IPC分类号： H02M3/24
CPC分类号： H02M3/33507
摘要： A biased current-limit circuit for limiting a maximum output power of a power converter includes an oscillator for generating a pulse signal and an oscillation signal. A waveform generator generates a waveform signal in response to the oscillation signal. A sample-hold circuit is used to sample the waveform signal to generate a hold signal in response to a switching signal. The sample-hold circuit further samples the hold signal to generate a current-limit threshold in response to a second-sampling signal. A current comparator is utilized to compare a current-sensing signal with the current-limit threshold to limit a maximum on-time of the switching signal.
摘要翻译：用于限制功率转换器的最大输出功率的偏置限流电路包括用于产生脉冲信号和振荡信号的振荡器。波形发生器响应于振荡信号产生波形信号。采样保持电路用于对波形信号进行采样以产生响应于开关信号的保持信号。采样保持电路还对保持信号采样，以响应于第二采样信号产生限流阈值。利用电流比较器将电流感测信号与限流阈值进行比较，以限制开关信号的最大导通时间。

12. 发明授权

US08559196B2 Output voltage control circuit of power converter for light-load power saving 有权
标题翻译：电源转换器输出电压控制电路，轻载省电
公开(公告)号：US08559196B2
公开(公告)日：2013-10-15
申请号：US12720096
申请日：2010-03-09
申请人： Ta-Yung Yang , Wei-Hsuan Huang , Chuh-Ching Li , Rui-Hong Lu , Jenn-Yu G. Lin
发明人： Ta-Yung Yang , Wei-Hsuan Huang , Chuh-Ching Li , Rui-Hong Lu , Jenn-Yu G. Lin
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M2001/0032 , Y02B70/16
摘要： A control circuit of a power converter for light-load power saving according to the present invention comprises a first feedback circuit coupled to an output voltage of the power converter to receive a first feedback signal. A second feedback circuit is coupled to the output voltage to receive a second feedback signal. A control circuit generates a switching signal for switching a transformer of the power converter and regulating the output voltage of the power converter in response to the first feedback signal and the second feedback signal. The switching signal is generated in accordance with the first feedback signal when an output load is high. The switching signal is generated in accordance with the second feedback signal during a light-load condition.
摘要翻译：根据本发明的用于轻载省电的功率转换器的控制电路包括耦合到功率转换器的输出电压的第一反馈电路以接收第一反馈信号。第二反馈电路耦合到输出电压以接收第二反馈信号。控制电路响应于第一反馈信号和第二反馈信号产生用于切换功率转换器的变压器的开关信号并调节功率转换器的输出电压。当输出负载高时，根据第一反馈信号产生开关信号。在轻负载状态期间根据第二反馈信号产生开关信号。

13. 发明授权

US08513895B2 High efficiency LED driver with current source regulations 有权
标题翻译：高效LED驱动器，具有电流源规范
公开(公告)号：US08513895B2
公开(公告)日：2013-08-20
申请号：US12762386
申请日：2010-04-19
申请人： Ta-Yung Yang , Byung-Hak Ahn , Jin-Hwa Chung , Chun-Chi Chen
发明人： Ta-Yung Yang , Byung-Hak Ahn , Jin-Hwa Chung , Chun-Chi Chen
IPC分类号： H05B37/02
CPC分类号： H05B33/0815 , H05B33/0827 , Y02B20/347
摘要： The present invention provides a control circuit for LED driver. A voltage-feedback circuit is coupled to LEDs to sense a voltage-feedback signal for generating a voltage loop signal. Current sources are coupled to the LEDs to control LED currents. A detection circuit is connected to sense voltages of current sources for generating a current-source loop signal in response to a minimum voltage of the current sources. Furthermore, a buffer circuit generates a feedback signal in accordance with the voltage loop signal and the current-source loop signal. The feedback signal is coupled to limit a maximum voltage of the LEDs and regulate the minimum voltage across the current sources.
摘要翻译：本发明提供一种LED驱动器的控制电路。电压反馈电路耦合到LED以感测用于产生电压环路信号的电压反馈信号。电流源耦合到LED以控制LED电流。连接检测电路以响应于电流源的最小电压来感测用于产生电流 - 源极环路信号的电流源的电压。此外，缓冲电路根据电压环路信号和电流 - 源极环路信号产生反馈信号。耦合反馈信号以限制LED的最大电压并调节跨过电流源的最小电压。

14. 发明授权

US08492801B2 Semiconductor structure with high breakdown voltage and resistance 有权
标题翻译：半导体结构具有高击穿电压和电阻
公开(公告)号：US08492801B2
公开(公告)日：2013-07-23
申请号：US11798206
申请日：2007-05-11
申请人： Chiu-Chih Chiang , Chih-Feng Huang
发明人： Chiu-Chih Chiang , Chih-Feng Huang
IPC分类号： H01L29/66
CPC分类号： H01L28/20
摘要： A semiconductor structure with high breakdown voltage and high resistance and method for manufacturing the same. The semiconductor structure at least comprises a substrate having a first conductive type; a deep well having a second conductive type formed in the substrate; two first wells having the first conductive type and formed within the deep well; a second well having the first conductive type and formed between the two first wells within the deep well, and an implant dosage of the second well lighter than an implant dosage of each of the two first wells; and two first doping regions having the first conductive type and respectively formed within the two first wells.
摘要翻译：具有高击穿电压和高电阻的半导体结构及其制造方法。半导体结构至少包括具有第一导电类型的衬底; 在衬底中形成有第二导电类型的深阱; 具有第一导电类型并形成在深井内的两个第一阱; 具有第一导电类型并形成在深井内的两个第一阱之间的第二阱，以及比两个第一孔中的每一个的植入物剂量轻的第二阱的植入剂量; 和具有第一导电类型并分别形成在两个第一阱内的两个第一掺杂区域。

15. 发明申请

US20130182476A1 ADAPTIVE SAMPLING CIRCUIT FOR DETECTING THE DEMAGNETIZED VOLTAGE OF THE TRANSFORMER 有权
标题翻译：用于检测变压器脱扣电压的自适应采样电路
公开(公告)号：US20130182476A1
公开(公告)日：2013-07-18
申请号：US13742529
申请日：2013-01-16
申请人： System General Corp.
发明人： TA-YUNG YANG , LI LIN , JUNG-SHENG CHEN , CHIH-HSIEN HSIEH
IPC分类号： H02M7/48
CPC分类号： H02M7/48 , G01R31/42 , H02M3/33523
摘要： An adaptive sampling circuit of the power converter according to the present invention comprises a sample-and-hold unit and a signal-generation circuit. The sample-and-hold unit is coupled to a transformer to generate a feedback signal by sampling a demagnetized voltage of the transformer in response to a sample signal. The signal-generation circuit generates the sample signal in response to a magnetized voltage of the transformer, the demagnetized voltage of the transformer, a switching signal and a code. The sample signal is used for sampling the demagnetized voltage. The feedback signal is correlated to an output voltage of the power converter. The switching signal is generated in response to the feedback signal for switching the transformer and regulating the output of the power converter. The adaptive sampling circuit is used to precisely measure the demagnetized voltage of the transformer without the limitation of the transformer design.
摘要翻译：根据本发明的功率转换器的自适应采样电路包括采样保持单元和信号发生电路。采样和保持单元耦合到变压器以通过响应于采样信号对变压器的退磁电压进行采样来产生反馈信号。信号发生电路响应于变压器的磁化电压，变压器的退磁电压，开关信号和代码产生采样信号。采样信号用于对退磁电压进行采样。反馈信号与功率转换器的输出电压相关。响应于用于切换变压器的反馈信号和调节功率转换器的输出而产生开关信号。自适应采样电路用于精确测量变压器的退磁电压，而不受变压器设计的限制。

16. 发明申请

US20130106488A1 SUCCESSIVE APPROXIMATION MULTIPLIER-DIVIDER FOR SIGNAL PROCESS AND METHOD FOR SIGNAL PROCESS 有权
标题翻译：用于信号处理的后续逼近乘法器和信号处理方法
公开(公告)号：US20130106488A1
公开(公告)日：2013-05-02
申请号：US13666080
申请日：2012-11-01
申请人： SYSTEM GENERAL CORP.
发明人： TA-YUNG YANG
IPC分类号： G06G7/16
CPC分类号： H03M1/66
摘要： A multiplier-divider circuit for signal process according to the present invention comprises a digital-to-analog converter, a first counter, a second counter, an oscillation circuit, and a control-logic apparatus. The digital-to-analog converter generates an output signal of the multiplier-divider circuit in accordance with the value of an input signal and a first signal. The first counter generates the first signal in response to a clock signal and the duty cycle of the input signal. The second counter generates a second signal in response to the clock signal and the period of the input signal. The oscillation circuit generates the clock signal in accordance with a third signal. The control-logic apparatus generates the third signal in response to the second signal and a constant. The first signal is correlated to the duty cycle of the input signal. The second signal is correlated to the period of the input signal.
摘要翻译：根据本发明的用于信号处理的乘法器分频器电路包括数模转换器，第一计数器，第二计数器，振荡电路和控制逻辑器件。数模转换器根据输入信号和第一信号的值产生乘法器 - 分频器电路的输出信号。第一计数器响应于时钟信号和输入信号的占空比产生第一信号。第二计数器响应于时钟信号和输入信号的周期产生第二信号。振荡电路根据第三信号产生时钟信号。控制逻辑装置响应于第二信号产生第三信号和常数。第一个信号与输入信号的占空比相关。第二信号与输入信号的周期相关。

17. 发明申请

US20130063990A1 PROTECTION CIRCUIT FOR POWER CONVERTER 有权
标题翻译：电源转换器保护电路
公开(公告)号：US20130063990A1
公开(公告)日：2013-03-14
申请号：US13606025
申请日：2012-09-07
申请人： Ta-Yung Yang
发明人： Ta-Yung Yang
IPC分类号： H02H7/122
CPC分类号： H02M1/32 , H02H7/1216 , H02M3/33523
摘要： A protection circuit of a power converter without an input capacitor is disclosed. The protection circuit comprises a high voltage switch, a detection circuit and a control circuit. The switch senses an input voltage of the power converter via a resistor for generating a first signal. The detection circuit coupled to a transformer senses the input voltage of the power converter for generating a second signal. The control circuit controls a switching signal in response to the first signal and the second signal. The switching signal is utilized to switching the transformer for regulating the power converter; and the level of the first signal and the second signal is correlated a level of the input voltage of the power converter.
摘要翻译：公开了一种没有输入电容器的电源转换器的保护电路。保护电路包括高压开关，检测电路和控制电路。开关通过用于产生第一信号的电阻感测功率转换器的输入电压。耦合到变压器的检测电路感测功率转换器的输入电压以产生第二信号。控制电路响应于第一信号和第二信号控制开关信号。切换信号用于切换用于调节功率转换器的变压器; 并且第一信号和第二信号的电平与功率转换器的输入电压的电平相关。

18. 发明授权

US08373253B2 Semiconductor structure 有权
标题翻译：半导体结构
公开(公告)号：US08373253B2
公开(公告)日：2013-02-12
申请号：US12875455
申请日：2010-09-03
申请人： Han-Chung Tai , Hsin-Chih Chiang
发明人： Han-Chung Tai , Hsin-Chih Chiang
IPC分类号： H01L29/861
CPC分类号： H01L27/0727 , H01L27/0255 , H01L27/0259
摘要： A semiconductor structure. The semiconductor comprises a substrate, a first deep well, a diode and a transistor. The first deep well is formed in the substrate. The diode is formed in the first deep well. The transistor is formed in the first deep well. The diode is connected to a first voltage, the transistor is connected to a second voltage, and the diode and the transistor are cascaded.
摘要翻译：半导体结构。半导体包括衬底，第一深阱，二极管和晶体管。第一个深孔在基底上形成。二极管形成在第一个深井中。晶体管形成在第一个深阱中。二极管连接到第一电压，晶体管连接到第二电压，并且二极管和晶体管级联。

19. 发明申请

US20120081039A1 METHOD AND APPARATUS FOR A LED DRIVER WITH HIGH POWER FACTOR 有权
标题翻译：用于具有高功率因数的LED驱动器的方法和装置
公开(公告)号：US20120081039A1
公开(公告)日：2012-04-05
申请号：US13073095
申请日：2011-03-28
申请人： TA-YUNG YANG , LI LIN , CHIH-HSIEN HSIEH , CHUH-CHING LI , CHI-YIN LO , KUO-HSIEM HUANG
发明人： TA-YUNG YANG , LI LIN , CHIH-HSIEN HSIEH , CHUH-CHING LI , CHI-YIN LO , KUO-HSIEM HUANG
IPC分类号： H05B37/02
CPC分类号： H05B33/0815
摘要： A control circuit of a LED driver according to the present invention comprises an output circuit, an input circuit and an input-voltage detection circuit. The output circuit generates a switching signal to produce an output current for driving at least one LED in response to a feedback signal. The switching signal is coupled to switch a transformer. The input circuit samples an input signal for generating the feedback signal. The input signal is correlated to the output current of the LED driver. The input-voltage detection circuit generates an input-voltage signal in response to an input voltage of the LED driver. The input circuit will not sample the input signal when the input-voltage signal is lower than a threshold. The control circuit can eliminate the need of the input capacitor for improving the reliability of the LED driver.
摘要翻译：根据本发明的LED驱动器的控制电路包括输出电路，输入电路和输入电压检测电路。输出电路产生开关信号以产生用于响应于反馈信号驱动至少一个LED的输出电流。开关信号被耦合以切换变压器。输入电路对输入信号进行采样以产生反馈信号。输入信号与LED驱动器的输出电流相关。输入电压检测电路根据LED驱动器的输入电压产生输入电压信号。当输入电压信号低于阈值时，输入电路不会对输入信号进行采样。控制电路可以消除输入电容器的需要，提高LED驱动器的可靠性。

20. 发明授权

US08054656B2 Switching control circuit for a switching power converter 有权
标题翻译：开关电源转换器的开关控制电路
公开(公告)号：US08054656B2
公开(公告)日：2011-11-08
申请号：US12232937
申请日：2008-09-26
申请人： Ying-Chieh Su , Chih-Chi Chang
发明人： Ying-Chieh Su , Chih-Chi Chang
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： A switching control circuit is coupled to a switching device and an auxiliary winding of a transformer, wherein a primary winding of the transformer is coupled to the switching device. The switching control circuit includes a voltage receiver, a comparing unit and a propagation delay circuit, wherein the voltage receiver is coupled to the auxiliary winding of the transformer for receiving a reflected voltage signal and transforming the reflected voltage signal into a peak voltage signal, while the switching device is turned off. The comparing unit is coupled to the voltage receiver for receiving the peak voltage signal and a first threshold voltage, and outputting a comparison result. The propagation delay circuit is coupled to the comparing unit for receiving the comparison result, and outputting a PWM signal to turn on the switching device after a delay time.
摘要翻译：开关控制电路耦合到变压器的开关装置和辅助绕组，其中变压器的初级绕组耦合到开关装置。开关控制电路包括电压接收器，比较单元和传播延迟电路，其中电压接收器耦合到变压器的辅助绕组，用于接收反射电压信号，并将反射的电压信号变换成峰值电压信号，同时切换装置关闭。比较单元耦合到电压接收器，用于接收峰值电压信号和第一阈值电压，并输出比较结果。传播延迟电路耦合到比较单元，用于接收比较结果，并输出PWM信号以在延迟时间之后导通开关装置。

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