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1. 发明授权

US08450948B2 Thermal foldback control for a light-emitting diode 有权
标题翻译：用于发光二极管的热折返控制
公开(公告)号：US08450948B2
公开(公告)日：2013-05-28
申请号：US12977775
申请日：2010-12-23
申请人： Pei-Cheng Huang , Jing-Meng Liu
发明人： Pei-Cheng Huang , Jing-Meng Liu
IPC分类号： G05F1/00
CPC分类号： H05B33/0845 , Y02B20/341
摘要： By monitoring the temperature of an LED and the temperature of a controller chip for the LED, a thermal foldback control is employed to gradually decrease the driving current of the LED before the LED or the controller chip is over heated, so as to prevent an over temperature protection from being triggered to shutdown the controller chip to cause the LED to undesirably flicker.
摘要翻译：通过监测LED的温度和LED的控制器芯片的温度，采用热折返控制来逐渐降低LED在LED或控制器芯片过热之前的驱动电流，以防止过度温度保护不被触发以关闭控制器芯片，导致LED不期望地闪烁。

2. 发明申请

US20100066266A1 Led bulb, light emitting device control method, and light emitting device controller circuit with dimming function adjustable by AC signal 有权
标题翻译： LED灯泡，发光装置控制方式以及具有调光功能的发光装置控制电路，可通过交流信号调节
公开(公告)号：US20100066266A1
公开(公告)日：2010-03-18
申请号：US12584149
申请日：2009-09-01
申请人： Pei-Cheng Huang , Ching-Jung Tseng , Jing-Meng Liu
发明人： Pei-Cheng Huang , Ching-Jung Tseng , Jing-Meng Liu
IPC分类号： H05B41/36
CPC分类号： H05B37/02 , F21K9/232 , H05B33/0848 , Y02B20/348
摘要： The present invention discloses a light emitting device control method for adjusting the brightness of the light emitting device by an AC signal, comprising: receiving a signal having a turn ON angle and converting the signal to a DC signal; obtaining an average of the DC signal level, the average being a function of the turn ON angle; determining a reference voltage of a current source circuit according to the average of the DC signal level; and controlling a current flow through the light emitting device by the current source circuit.
摘要翻译：本发明公开了一种用于通过AC信号调节发光装置的亮度的发光装置控制方法，包括：接收具有转角的信号并将该信号转换成DC信号; 获得DC信号电平的平均值，平均值是转向ON角度的函数; 根据DC信号电平的平均值确定电流源电路的参考电压; 以及通过电流源电路控制通过发光器件的电流。

3. 发明授权

US08513894B2 LED bulb, light emitting device control method, and light emitting device controller circuit with dimming function adjustable by AC signal 有权
标题翻译： LED灯泡，发光装置控制方式以及具有调光功能的发光装置控制电路，可通过交流信号调节
公开(公告)号：US08513894B2
公开(公告)日：2013-08-20
申请号：US12584149
申请日：2009-09-01
申请人： Pei-Cheng Huang , Ching-Jung Tseng , Jing-Meng Liu
发明人： Pei-Cheng Huang , Ching-Jung Tseng , Jing-Meng Liu
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , F21K9/232 , H05B33/0848 , Y02B20/348
摘要： The present invention discloses a light emitting device control method for adjusting the brightness of the light emitting device by an AC signal, comprising: receiving a signal having a turn ON angle and converting the signal to a DC signal; obtaining an average of the DC signal level, the average being a function of the turn ON angle; determining a reference voltage of a current source circuit according to the average of the DC signal level; and controlling a current flow through the light emitting device by the current source circuit.
摘要翻译：本发明公开了一种用于通过AC信号调节发光装置的亮度的发光装置控制方法，包括：接收具有转角的信号并将该信号转换成DC信号; 获得DC信号电平的平均值，平均值是转向ON角度的函数; 根据DC信号电平的平均值确定电流源电路的参考电压; 以及通过电流源电路控制通过发光器件的电流。

4. 发明授权

US08400072B2 Light emitting device driver circuit driving light emitting device by positive and negative voltages and method for driving light emitting device by positive and negative voltages 有权
标题翻译：通过正负电压驱动发光装置的发光装置驱动电路和通过正，负电压驱动发光装置的方法
公开(公告)号：US08400072B2
公开(公告)日：2013-03-19
申请号：US12942179
申请日：2010-11-09
申请人： Pei-Cheng Huang , Jing-Meng Liu , Roland Van Roy
发明人： Pei-Cheng Huang , Jing-Meng Liu , Roland Van Roy
IPC分类号： H05B41/16 , H05B41/24 , H05B37/00 , H05B39/00 , H05B41/00 , H05B37/02 , H05B39/04 , G05F1/00
CPC分类号： H05B33/0818
摘要： The present invention discloses a light emitting device driver circuit and a method for driving a light emitting device. In the present invention, the secondary windings of a transformer provide positive and negative secondary voltages, so as to generate positive and negative output voltages. A light emitting device circuit is coupled between the positive and negative output voltages. As such, the specification to withstand high voltage for a device in the circuit is reduced.
摘要翻译：本发明公开了一种发光器件驱动电路和驱动发光器件的方法。在本发明中，变压器的次级绕组提供正和负二次电压，从而产生正和负的输出电压。发光器件电路耦合在正和负输出电压之间。因此，降低了用于承受电路中器件的高电压的规范。

5. 发明申请

US20120293082A1 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：US20120293082A1
公开(公告)日：2012-11-22
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。

6. 发明授权

US08064620B2 Driver circuit and driving method for electrostatic loudspeaker 失效
标题翻译：静电扬声器的驱动电路和驱动方法
公开(公告)号：US08064620B2
公开(公告)日：2011-11-22
申请号：US12229369
申请日：2008-08-22
申请人： Pei-Cheng Huang , Jwin-Yen Guo , Kuo-Chi Liu
发明人： Pei-Cheng Huang , Jwin-Yen Guo , Kuo-Chi Liu
IPC分类号： H04R3/00
CPC分类号： H04S3/008 , H04R5/04 , H04R19/02 , H04R2420/03
摘要： The present invention discloses a driver circuit for an electrostatic loudspeaker, comprising: a digital modulation encoder for receiving a digital audio signal and a fixed frequency pulse signal, and mixing them by modulation; a digital to analog converter for converting the output of the digital modulation encoder to an analog signal; a transformer for adjusting the voltage amplitude of the analog signal; and a demodulator for demodulating the adjusted analog signal to driver a speaker.
摘要翻译：本发明公开了一种用于静电扬声器的驱动电路，包括：数字调制编码器，用于接收数字音频信号和固定频率脉冲信号，并通过调制进行混频; 数模转换器，用于将数字调制编码器的输出转换为模拟信号; 用于调整模拟信号的电压幅度的变压器; 以及用于将调整后的模拟信号解调为扬声器的解调器。

7. 发明申请

US20120326647A1 ZERO-CROSSING DETECTION CIRCUIT AND COMMUTATION DEVICE USING THE ZERO-CROSSING DETECTION CIRCUIT 有权
标题翻译：使用零交叉检测电路的零交叉检测电路和传感器件
公开(公告)号：US20120326647A1
公开(公告)日：2012-12-27
申请号：US13232086
申请日：2011-09-14
申请人： Wei-Hsu Chang , Pei-Cheng Huang , Hao-Yu Chang , Yen-Shin Lai , Kuo-Chung Lee , Jo-Yu Wang , Yu-Kuang Wu , Chih-Chang Chen , Shiue-Shr Jiang , Jen-Hung Chi
发明人： Wei-Hsu Chang , Pei-Cheng Huang , Hao-Yu Chang , Yen-Shin Lai , Kuo-Chung Lee , Jo-Yu Wang , Yu-Kuang Wu , Chih-Chang Chen , Shiue-Shr Jiang , Jen-Hung Chi
IPC分类号： H02P6/18
CPC分类号： H02P6/182
摘要： A zero-crossing detection circuit and a commutation device using the zero-crossing detection circuit are provided. The zero-crossing detection circuit is adapted into a three-phase brushless DC (direct current) motor with first to third coils. One terminal of each of the first to third coils is electrically coupled together with each other. The detection circuit comprises a first selection circuit, a second selection circuit and a comparator. The first selection circuit and the second selection circuit are both electrically coupled to another terminals of the first to third coils, to obtain first to third terminal voltages, and output one of the first to third terminal voltages according to a selection signal. The comparator is configured for comparing an output of the first selection circuit and an output of the second selection circuit, to output a comparing result.
摘要翻译：提供过零检测电路和使用过零检测电路的换向装置。过零检测电路适用于具有第一至第三线圈的三相无刷直流（直流）电动机。第一至第三线圈中的每一个的一个端子彼此电耦合。检测电路包括第一选择电路，第二选择电路和比较器。第一选择电路和第二选择电路都电耦合到第一至第三线圈的另一个端子，以获得第一至第三端子电压，并根据选择信号输出第一至第三端子电压中的一个。比较器被配置为比较第一选择电路的输出和第二选择电路的输出，以输出比较结果。

8. 发明申请

US20120256892A1 MULTI-MODE DISPLAY DEVICE AND POWER-SAVING METHOD OF THE SAME 有权
标题翻译：多模式显示装置及其省电方法
公开(公告)号：US20120256892A1
公开(公告)日：2012-10-11
申请号：US13164159
申请日：2011-06-20
申请人： Chi-Ming HUNG , Chih-Ming Ma , Pei-Cheng Huang , Jun-Lin Huang
发明人： Chi-Ming HUNG , Chih-Ming Ma , Pei-Cheng Huang , Jun-Lin Huang
IPC分类号： G09G5/10
CPC分类号： G09G3/3406 , G09G2300/0456 , G09G2330/021 , G09G2360/144
摘要： A power-saving method adapted in a multi-mode display device is provided. The power-saving method comprises the steps as follows. A brightness of an ambient light is detected. When the brightness of the ambient light lies within a transmissive range, the multi-mode display device is operated in a transmissive mode and enables the backlight module of the multi-mode display. When the brightness of the ambient light lies within a transflective range, the multi-mode display device is operated in a transflective mode and the brightness of the backlight module is dynamically adjusted according to a compensation method. When the brightness of the ambient light lies within a reflective range, the multi-mode display device is operated in a reflective mode and turns off the backlight module.
摘要翻译：提供了一种适用于多模式显示装置的省电方法。省电方法包括以下步骤。检测到环境光的亮度。当环境光的亮度处于透射范围内时，多模式显示装置以透射模式工作，并使得多模式显示器的背光模块成为可能。当环境光的亮度处于半透反射范围内时，多模式显示装置以透反射模式操作，并且根据补偿方法动态地调整背光模块的亮度。当环境光的亮度处于反射范围内时，多模式显示装置以反射模式操作并且关闭背光模块。

9. 发明授权

US07944289B2 Minimum pulse generation in a class-D amplifier 失效
标题翻译： D类放大器中的最小脉冲产生
公开(公告)号：US07944289B2
公开(公告)日：2011-05-17
申请号：US12585917
申请日：2009-09-29
申请人： Pei-Cheng Huang , Jwin-Yen Guo
发明人： Pei-Cheng Huang , Jwin-Yen Guo
IPC分类号： H03F3/38
CPC分类号： H03F1/26 , H03F3/2173 , H03F2200/03 , H03F2200/351
摘要： For minimum pulse generation in a class-D amplifier, a trapezoid switching waveform shape is used to replace the tradition triangle type to generate PWM pulses. Two voltages are compared with a sawtooth wave signal to generate the trapezoid waveform signal and a constant pulse width signal. An audio input signal is compared with the trapezoid waveform signal to generate a pulse width modulation signal, and either the pulse width modulation signal or the constant pulse width signal is used for driving a load at an output of the class-D amplifier. Flexible minimum pulse width could be obtained by offsetting one of the two voltages in generation of the constant pulse width signal.
摘要翻译：为了在D类放大器中产生最小的脉冲，采用梯形切换波形来替代传统的三角形类型以产生PWM脉冲。将两个电压与锯齿波信号进行比较，以产生梯形波形信号和恒定的脉冲宽度信号。将音频输入信号与梯形波形信号进行比较以产生脉宽调制信号，并且使用脉宽调制信号或恒定脉冲宽度信号来驱动D类放大器的输出端的负载。可以通过在产生恒定脉冲宽度信号时抵消两个电压中的一个来获得灵活的最小脉冲宽度。

10. 发明授权

US08779690B2 Direct current light emitting device control circuit with dimming function and method thereof 有权
标题翻译：具有调光功能的直流发光器件控制电路及其方法
公开(公告)号：US08779690B2
公开(公告)日：2014-07-15
申请号：US13134995
申请日：2011-06-22
申请人： Fu-Sheng Tsai , Pei-Cheng Huang
发明人： Fu-Sheng Tsai , Pei-Cheng Huang
IPC分类号： G05F1/00
CPC分类号： H05B33/0827 , H05B33/0851
摘要： The present invention discloses a direct current (DC) light emitting device control circuit with dimming function, and a method thereof, wherein the dimming function is provided in a feedback loop for feeding back a feedback signal from an output terminal to a power switch control circuit; the feedback signal relates to an output current supplied to the DC light emitting device. The present invention adjusts the feedback signal according to the desired brightness of the DC light emitting device. The present invention controls a power switch according to the adjusted feedback signal, such that the output current supplied to the DC light emitting device is adjusted, and accordingly the brightness of the DC light emitting device is adjusted below the full brightness.
摘要翻译：本发明公开了一种具有调光功能的直流（DC）发光器件控制电路及其方法，其中调光功能设置在用于将反馈信号从输出端子反馈到电源开关控制电路的反馈环路中 ; 反馈信号与提供给DC发光器件的输出电流有关。本发明根据DC发光装置的期望亮度来调整反馈信号。本发明根据调整后的反馈信号控制电源开关，使得提供给DC发光装置的输出电流被调节，因此将DC发光装置的亮度调整到全亮度以下。

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