公开(公告)号：US07501805B2

公开(公告)日：2009-03-10

申请号：US11487388

申请日：2006-07-17

申请人： Isaac Y. Chen ,  An-Tung Chen ,  Liang-Pin Tai

发明人： Isaac Y. Chen ,  An-Tung Chen ,  Liang-Pin Tai

IPC分类号： H02M3/158

CPC分类号： H02M1/36 ,  H02M3/156 ,  H02M2001/0025 ,  Y10S323/901

摘要： A circuit and method for soft start of a system compare a feedback signal produced from an output voltage of the system with a ramp signal to generate a comparison signal, and enables the system once the comparison signal indicating the ramp signal reaches the feedback signal, such that the output voltage becomes active from a residual voltage toward a target level.

摘要翻译： 用于软启动的系统的电路和方法将从系统的输出电压产生的反馈信号与斜坡信号进行比较，以产生比较信号，并且一旦指示斜坡信号的比较信号达到反馈信号，使能系统， 输出电压从残余电压向目标电平变为有效。

公开(公告)号：US20150173145A1

公开(公告)日：2015-06-18

申请号：US14567825

申请日：2014-12-11

申请人： Yi-Wei Lee ,  Isaac Y. Chen ,  Tong-Cheng Jao ,  Chien-Yang Chen

发明人： Yi-Wei Lee ,  Isaac Y. Chen ,  Tong-Cheng Jao ,  Chien-Yang Chen

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0809 ,  H05B33/0845 ,  Y02B20/347

摘要： The present invention provides a light emitting device power supply circuit with dimming function and a control circuit thereof. The light emitting device power supply circuit includes: a phase-cut dimming circuit, a rectifier circuit, a transformer circuit, and a control circuit. The transformer circuit includes an auxiliary winding, which is coupled to a primary winding, for generating a bleeder current to keep a conduction current higher than a holding current and prevent the phase-cut dimming circuit from turning OFF when the phase-cut dimming circuit operates in conductive phase. The control circuit includes a waveform analysis circuit, a bleeder current control circuit, and a bleeder current source. The bleeder current source includes a linear regulator or a variable current source. The bleeder current source controls the bleeder current so that the bleeder current is generated in a continuous and non-switching manner within the conductive phase.

摘要翻译： 本发明提供一种具有调光功能的发光装置电源电路及其控制电路。 发光器件电源电路包括：相位调光电路，整流电路，变压器电路和控制电路。 变压器电路包括耦合到初级绕组的辅助绕组，用于产生放电电流以保持导通电流高于保持电流，并且当相切割调光电路工作时防止相位调光电路断开 导电相。 控制电路包括波形分析电路，泄放电流控制电路和泄放电流源。 泄放电流源包括线性调节器或可变电流源。 泄放电流源控制泄放电流，使得泄放电流在导电阶段内以连续和非切换的方式产生。

公开(公告)号：US08203321B2

公开(公告)日：2012-06-19

申请号：US12461106

申请日：2009-07-31

申请人： Nai-Yuan Liang ,  Isaac Y. Chen ,  Shao-Hung Lu

发明人： Nai-Yuan Liang ,  Isaac Y. Chen ,  Shao-Hung Lu

IPC分类号： G05F1/613

CPC分类号： H02M3/1584 ,  H03K17/6871 ,  Y10S323/907

摘要： A DrMOS combines a high side power MOSFET, a low side power MOSFET and a driver circuit for driving the power MOSFETs with current balance and thermal balance mechanism and variable phase control circuit on a single chip.

摘要翻译： DrMOS结合了高边功率MOSFET，低功率MOSFET和驱动电路，用于在单个芯片上驱动具有电流平衡和热平衡机制的功率MOSFET以及可变相位控制电路。

公开(公告)号：US07741901B2

公开(公告)日：2010-06-22

申请号：US12068253

申请日：2008-02-05

申请人： Sao-Hung Lu ,  Isaac Y. Chen

发明人： Sao-Hung Lu ,  Isaac Y. Chen

IPC分类号： H02M3/07 ,  G05F1/613

CPC分类号： H03K17/6871 ,  H03K17/162

摘要： For charging a bootstrap capacitor in a voltage converter, a circuit is provided for wider bandwidth to eliminate the feedback stability issue and pin out for compensation circuit. A pair of transistors are connected in series between a power input and the bootstrap capacitor, the first transistor is switched synchronously with a low-side transistor of the voltage converter, and a comparator compares a feedback voltage drawn from a feedback node between the pair of transistors with a reference voltage, to control the second transistor to determine to charge the bootstrap capacitor.

摘要翻译： 为了对电压转换器中的自举电容器进行充电，为更宽的带宽提供电路，以消除反馈稳定性问题，并针对补偿电路进行引脚输出。 一对晶体管串联连接在电源输入和自举电容之间，第一晶体管与电压转换器的低侧晶体管同步地切换，比较器比较从一对 具有参考电压的晶体管，以控制第二晶体管确定对自举电容器充电。

公开(公告)号：US07672393B2

公开(公告)日：2010-03-02

申请号：US11497601

申请日：2006-08-02

申请人： Isaac Y. Chen

发明人： Isaac Y. Chen

IPC分类号： H04L25/49

CPC分类号： H04L25/4923 ,  H04L5/04 ,  H04L7/044

摘要： The present invention discloses a single-wire asynchronous serial interface, and a method for transmitting commands and data through one transmission wire, wherein the transmission wire is capable of transmitting signals of three level states. The disclosed interface comprises a signal level extraction circuit receiving signals transmitted through the wire and outputting logic or functional bits according to the received signals; a clock extraction circuit generating clock signals according to the functional bits, and a memory circuit controlled by the clock signals and storing the logic bits. The disclosed method comprises: using two of the level states to represent logic 0 and, logic 1, and the third of the states as a functional bit; and determining whether a group of signals is a command or data by the existence of a functional bit within the group.

摘要翻译： 本发明公开了一种单线异步串行接口，以及一种通过一条传输线传输命令和数据的方法，其中传输线能传输三电平状态信号。 所公开的接口包括：信号电平提取电路，接收通过线路传输的信号，并根据接收到的信号输出逻辑或功能位; 根据功能位产生时钟信号的时钟提取电路和由时钟信号控制并存储逻辑比特的存储器电路。 所公开的方法包括：使用两个电平状态来表示逻辑0，逻辑1和第三状态作为功能位; 以及通过所述组内的功能位的存在来确定一组信号是否是命令或数据。

公开(公告)号：US09912224B2

公开(公告)日：2018-03-06

申请号：US14735187

申请日：2015-06-10

申请人： Yi-Min Shiu ,  Isaac Y. Chen

发明人： Yi-Min Shiu ,  Isaac Y. Chen

IPC分类号： H02M1/32 ,  H02M3/156 ,  H02M7/217 ,  H02H7/10 ,  H02M3/335 ,  H02M1/00

CPC分类号： H02M1/32 ,  H02H7/10 ,  H02M3/156 ,  H02M3/33523 ,  H02M7/217 ,  H02M2001/0012 ,  H02M2001/0025

摘要： The present invention discloses a short circuit and/or bad connection detection method for use in a power supply system. The power supply system includes a power converter which converts an input voltage to an output voltage and supplies an output current to an electronic device. In the short circuit detection method, the conversion from the input voltage to the output voltage is disabled in a disable time period, and whether a short circuit occurs is determined according to the decreasing speed of the output voltage. In the bad connection detection method, an actual voltage and an actual current received by the electronic device are compared with the output voltage and the output current, to determine whether a bad connection occurs.

公开(公告)号：US09119254B2

公开(公告)日：2015-08-25

申请号：US14567825

申请日：2014-12-11

申请人： Yi-Wei Lee ,  Isaac Y. Chen ,  Tong-Cheng Jao ,  Chien-Yang Chen

发明人： Yi-Wei Lee ,  Isaac Y. Chen ,  Tong-Cheng Jao ,  Chien-Yang Chen

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0809 ,  H05B33/0845 ,  Y02B20/347

摘要： The present invention provides a light emitting device power supply circuit with dimming function and a control circuit thereof. The light emitting device power supply circuit includes: a phase-cut dimming circuit, a rectifier circuit, a transformer circuit, and a control circuit. The transformer circuit includes an auxiliary winding, which is coupled to a primary winding, for generating a bleeder current to keep a conduction current higher than a holding current and prevent the phase-cut dimming circuit from turning OFF when the phase-cut dimming circuit operates in conductive phase. The control circuit includes a waveform analysis circuit, a bleeder current control circuit, and a bleeder current source. The bleeder current source includes a linear regulator or a variable current source. The bleeder current source controls the bleeder current so that the bleeder current is generated in a continuous and non-switching manner within the conductive phase.

摘要翻译： 本发明提供一种具有调光功能的发光装置电源电路及其控制电路。 发光器件电源电路包括：相位调光电路，整流电路，变压器电路和控制电路。 变压器电路包括耦合到初级绕组的辅助绕组，用于产生放电电流以保持导通电流高于保持电流，并且当相切割调光电路工作时防止相位调光电路断开 导电相。 控制电路包括波形分析电路，泄放电流控制电路和泄放电流源。 泄放电流源包括线性调节器或可变电流源。 泄放电流源控制泄放电流，使得泄放电流在导电阶段内以连续和非切换的方式产生。

公开(公告)号：US08436664B2

公开(公告)日：2013-05-07

申请号：US13287828

申请日：2011-11-02

申请人： Jo-Yu Wang ,  Isaac Y. Chen

发明人： Jo-Yu Wang ,  Isaac Y. Chen

IPC分类号： H03L7/00

CPC分类号： H03K19/1732 ,  G06F1/22 ,  G06F1/28 ,  H03K17/22

摘要： A first switch is switched to short a multi-functional pin of an integrated circuit to a ground terminal or let a current supplied to the multi-functional pin to flow to a second switch connected to the multi-functional pin. Before the integrated circuit is ready, the second switch is closed circuit and is detected its current to determine a first signal to enable or disable the integrated circuit. After the integrated circuit is ready, the second switch is open circuit, the voltage at the multi-functional pin is detected to determine a second signal to enable or disable the integrated circuit, and when the voltage at the multi-functional pin is higher than a threshold, a power good signal is triggered.

摘要翻译： 第一开关被切换成将集成电路的多功能引脚短接到接地端子，或者使提供给多功能引脚的电流流到连接到多功能引脚的第二开关。 在集成电路准备就绪之前，第二开关是闭合电路，并且检测其电流以确定第一信号以使能或禁用集成电路。 集成电路准备就绪后，第二开关断开，检测多功能引脚上的电压，确定第二个信号使能或禁止集成电路，并且当多功能引脚的电压高于 阈值，电源良好信号被触发。

公开(公告)号：US08269564B2

公开(公告)日：2012-09-18

申请号：US13087515

申请日：2011-04-15

申请人： Shao-Hung Lu ,  Isaac Y. Chen

发明人： Shao-Hung Lu ,  Isaac Y. Chen

IPC分类号： H03B1/00

CPC分类号： H03L7/099

摘要： A frequency setting circuit and method for an integrated circuit detect the voltage at a pin of the integrated circuit during a frequency setting period, and determine a frequency setting signal according to the detected voltage to set the frequency of a clock provided by an oscillator in the integrated circuit. After setting the frequency, the frequency setting circuit and method store the frequency setting signal and stop detecting the voltage at the pin. Thus the pin can be used for other functions.

摘要翻译： 用于集成电路的频率设定电路和方法在频率设定期间检测集成电路的引脚上的电压，并根据检测到的电压来确定频率设定信号，以将振荡器提供的时钟的频率设置在 集成电路。 设定频率后，频率设定电路和方法存储频率设定信号，停止检测引脚电压。 因此，该引脚可用于其他功能。

公开(公告)号：US20100033237A1

公开(公告)日：2010-02-11

申请号：US12461106

申请日：2009-07-31

申请人： Nai-Yuan Liang ,  Isaac Y. Chen ,  Shao-Hung Lu

发明人： Nai-Yuan Liang ,  Isaac Y. Chen ,  Shao-Hung Lu

IPC分类号： G05F1/10

CPC分类号： H02M3/1584 ,  H03K17/6871 ,  Y10S323/907

摘要： A DrMOS combines a high side power MOSFET, a low side power MOSFET and a driver circuit for driving the power MOSFETs with current balance and thermal balance mechanism and variable phase control circuit on a single chip.

摘要翻译： DrMOS结合了高边功率MOSFET，低功率MOSFET和驱动电路，用于在单个芯片上驱动具有电流平衡和热平衡机制的功率MOSFET以及可变相位控制电路。