公开(公告)号：US20120074866A1

公开(公告)日：2012-03-29

申请号：US13046165

申请日：2011-03-11

申请人： Wei-Qiang ZHANG ,  Li-Zhi Xu ,  Qi Zhang ,  Jian-Ping Ying

发明人： Wei-Qiang ZHANG ,  Li-Zhi Xu ,  Qi Zhang ,  Jian-Ping Ying

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0824 ,  Y02B20/347

摘要： A lighting apparatus includes a lighting unit, a converting circuit, a sensing circuit, and a current control circuit. The lighting unit includes at least one light emitting diode and a switching device connected with each other in series. The converting circuit has an output end electrically connected to the lighting unit for driving it. The sensing circuit includes a sensing element capable of indirectly detecting the current flowing through the light emitting diode and outputting a feedback signal. The current control circuit receives a reference current, the feedback signal and a dimming command, and sends a dimming control signal to the lighting unit and a current control signal to the converting circuit, capable of controlling the amplitude of the current flowing through the light emitting diode.

摘要翻译： 照明装置包括照明单元，转换电路，感测电路和电流控制电路。 照明单元包括至少一个串联连接的发光二极管和开关装置。 转换电路具有电连接到照明单元用于驱动它的输出端。 感测电路包括能够间接检测流过发光二极管的电流并输出反馈信号的感测元件。 电流控制电路接收参考电流，反馈信号和调光命令，并向调光电路发送调光控制信号和向转换电路发送的电流控制信号，该电流控制信号能够控制流经发光的电流的振幅 二极管。

公开(公告)号：US20120262081A1

公开(公告)日：2012-10-18

申请号：US13241233

申请日：2011-09-23

申请人： Wei-Qiang ZHANG ,  Li-Zhi XU ,  Jian-Ping YING

发明人： Wei-Qiang ZHANG ,  Li-Zhi XU ,  Jian-Ping YING

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H02M3/33561 ,  Y02B70/1433

摘要： The invention discloses a driving circuit structure for driving light-emitting loads. The driving circuit structure may include a power supplying device, a signal processing device and an impedance balancing device and a dimming control unit. The power supplying device is used for supplying an alternating current power supply. The signal processing device is used for converting the alternating current power supply into a direct current power supply, so as to drive the light-emitting loads. The impedance balancing device is used for balancing an alternating current magnitude of the alternating current power supply, so as to stabilize a direct current magnitude of the direct current power supply for driving the light-emitting loads. The dimming control unit is capable of controlling output luminance of the light-emitting loads.

摘要翻译： 本发明公开了一种用于驱动发光负载的驱动电路结构。 驱动电路结构可以包括供电装置，信号处理装置和阻抗平衡装置以及调光控制装置。 供电装置用于提供交流电源。 信号处理装置用于将交流电源转换为直流电源，以驱动发光负载。 阻抗平衡装置用于平衡交流电源的交流电流大小，以便稳定用于驱动发光负载的直流电源的直流电流幅值。 调光控制单元能够控制发光负载的输出亮度。

公开(公告)号：US20130020954A1

公开(公告)日：2013-01-24

申请号：US13241321

申请日：2011-09-23

申请人： Jian-Ping YING ,  Qi ZHANG ,  Wei-Qiang ZHANG ,  Zi-Ying ZHOU

发明人： Jian-Ping YING ,  Qi ZHANG ,  Wei-Qiang ZHANG ,  Zi-Ying ZHOU

IPC分类号： H05B41/36

CPC分类号： H05B41/2886 ,  H05B33/0815 ,  H05B41/38 ,  Y02B20/202

摘要： A discharge lamp system includes an AC power source, a rectifier, a power factor correction (PFC) circuit, a half-bridge circuit, and a controller. The AC power source provides an AC power. The rectifier converts the AC power into a DC power. The PFC circuit is electrically coupled to the rectifier and is configured for generating an output voltage. The half-bridge circuit is electrically coupled to the PFC circuit and a discharge lamp, and is configured for converting the output voltage into a voltage required by the discharge lamp. The controller is electrically coupled to the PFC circuit and the half-bridge circuit, and includes a timer for counting time, in which the controller controls the output voltage of the PFC circuit in accordance with a time period counted by the timer.

摘要翻译： 放电灯系统包括AC电源，整流器，功率因数校正（PFC）电路，半桥电路和控制器。 交流电源提供交流电源。 整流器将交流电转换成直流电源。 PFC电路电耦合到整流器并被配置为产生输出电压。 半桥电路电耦合到PFC电路和放电灯，并且被配置为将输出电压转换成放电灯所需的电压。 控制器电耦合到PFC电路和半桥电路，并且包括用于计数时间的定时器，其中控制器根据由定时器计数的时间段来控制PFC电路的输出电压。

公开(公告)号：US20130026938A1

公开(公告)日：2013-01-31

申请号：US13241318

申请日：2011-09-23

申请人： Qi ZHANG ,  Wei-Qiang ZHANG ,  Jian-Ping YING

发明人： Qi ZHANG ,  Wei-Qiang ZHANG ,  Jian-Ping YING

IPC分类号： H05B41/36 ,  H05B41/30

CPC分类号： H05B41/288 ,  H05B41/38

摘要： A discharge lamp system includes a discharge lamp, a power source, a converter, a lamp state signal detection module and a controller. The power source provides a DC power. The converter converts the DC power into a current required by the discharge lamp. The lamp state signal detection module receives a lamp state signal and outputs a lamp state detection signal. The controller processes the lamp state detection signal and a given synchronization signal to generate an average lamp current signal and a pulse current signal, and then processes the average lamp current signal and the pulse current signal to generate a control signal. The controller performs current control of the discharge lamp through the converter according to the control signal. Furthermore, a method for controlling a discharge lamp is also disclosed herein.

摘要翻译： 放电灯系统包括放电灯，电源，转换器，灯状态信号检测模块和控制器。 电源提供直流电源。 该转换器将直流功率转换成放电灯所需的电流。 灯状态信号检测模块接收灯状态信号并输出​​灯状态检测信号。 控制器处理灯状态检测信号和给定的同步信号以产生平均灯电流信号和脉冲电流信号，然后处理平均灯电流信号和脉冲电流信号以产生控制信号。 控制器根据控制信号通过转换器对放电灯进行电流控制。 此外，本文还公开了一种用于控制放电灯的方法。

公开(公告)号：US20130020953A1

公开(公告)日：2013-01-24

申请号：US13241247

申请日：2011-09-23

申请人： Qi ZHANG ,  Wei-Qiang ZHANG ,  Jian-Ping YING

发明人： Qi ZHANG ,  Wei-Qiang ZHANG ,  Jian-Ping YING

IPC分类号： H05B41/36 ,  H05B41/26

CPC分类号： H05B41/2886 ,  H05B41/38 ,  Y02B20/202

摘要： A discharge lamp system includes a discharge lamp; a power supply device for providing DC input voltage and current; a converter connected to the discharge lamp and the power supply device for providing power for the discharge lamp; a DC input voltage detecting unit connected to the power supply device for detecting the DC input voltage; a DC input current detecting unit connected to the power supply device for detecting the DC input current; a lamp state detecting unit for detecting a signal responsive to the lamp state; a controller connected to the converter, the DC input voltage detecting unit, the DC input current detecting unit and the lamp state detecting unit for controlling the discharge lamp according to the signal responsive to the lamp state, the DC input voltage and the DC input current. A controlling method for the discharge lamp system is also disclosed herein.

摘要翻译： 放电灯系统包括放电灯; 用于提供直流输入电压和电流的电源装置; 连接到放电灯的转换器和用于为放电灯提供电力的电源装置; 连接到电源装置的DC输入电压检测单元，用于检测DC输入电压; 连接到电源装置的直流输入电流检测单元，用于检测直流输入电流; 灯状态检测单元，用于检测响应于灯状态的信号; 连接到转换器的控制器，直流输入电压检测单元，直流输入电流检测单元和灯状态检测单元，用于根据响应于灯状态的信号，直流输入电压和直流输入电流来控制放电灯 。 本文还公开了放电灯系统的控制方法。

公开(公告)号：US20130038231A1

公开(公告)日：2013-02-14

申请号：US13249272

申请日：2011-09-30

申请人： Qi ZHANG ,  Wei-Qiang ZHANG ,  Jian-Ping YING

发明人： Qi ZHANG ,  Wei-Qiang ZHANG ,  Jian-Ping YING

IPC分类号： H05B41/36

CPC分类号： H05B41/288

摘要： A method and a device for controlling a discharge Lamp, and a discharge lamp system are disclosed herein. The method includes the operations of: when the lamp current changes, determining a percentage of change of the lamp current according to a synchronous signal and obtaining a second lamp current after a discharge lamp current changes according to the percentage of change of the lamp current and a first lamp current; obtaining a modulating signal according to a current difference between the first lamp current and the second lamp current; and generating a pulse voltage signal according to the modulating signal. The pulse voltage signal transits from a first voltage to a second voltage during the time period when the lamp current is transited from a first lamp current to a second lamp current during a transition time.

摘要翻译： 本文公开了一种用于控制放电灯的方法和装置以及放电灯系统。 该方法包括以下操作：当灯电流变化时，根据同步信号确定灯电流的变化百分比，并且在放电灯电流根据灯电流的变化百分比变化后获得第二灯电流，并且 第一灯电流; 根据第一灯电流和第二灯电流之间的电流差获得调制信号; 并根据调制信号产生脉冲电压信号。 在灯电流在转换期间从第一灯电流转换到第二灯电流的时间段期间，脉冲电压信号从第一电压转换到第二电压。

公开(公告)号：US20120319608A1

公开(公告)日：2012-12-20

申请号：US13239399

申请日：2011-09-22

申请人： Li-Zhi XU ,  Wei-Qiang ZHANG ,  Qi ZHANG

发明人： Li-Zhi XU ,  Wei-Qiang ZHANG ,  Qi ZHANG

IPC分类号： H05B37/02

CPC分类号： H02M5/257 ,  H02M1/44 ,  H05B33/0815

摘要： A damper circuit is operable to dampen resonance of an electromagnetic interference filter when a phase dimmer activates. The damper circuit includes a capacitor and a bipolar junction transistor (BJT). The capacitor includes a first terminal and a second terminal. The BJT includes a control terminal, a collector terminal, and an emitter terminal. The control terminal of the BJT receives a control signal to make the BJT operate in the amplified area, and the collector terminal of the BJT is electrically connected to the second terminal of the capacitor. The first terminal of the capacitor receives the resonance generated to by the electromagnetic interference filter, and the BJT and the capacitor cooperate to dampen the resonance generated by the electromagnetic interference filter when the BJT operates in the amplified area.

摘要翻译： 当相位调光器激活时，阻尼器电路可用于抑制电磁干扰滤波器的谐振。 阻尼电路包括电容器和双极结型晶体管（BJT）。 电容器包括第一端子和第二端子。 BJT包括控制端子，集电极端子和发射极端子。 BJT的控制端子接收控制信号使BJT工作在放大区域，BJT的集电极端子与电容器的第二端子电连接。 电容器的第一端子接收由电磁干扰滤波器产生的谐振，并且当BJT在放大区域中工作时，BJT和电容器协调抑制由电磁干扰滤波器产生的谐振。

公开(公告)号：US20120320646A1

公开(公告)日：2012-12-20

申请号：US13237920

申请日：2011-09-20

申请人： Wei-Qiang ZHANG ,  Li-Zhi XU ,  Qi ZHANG

发明人： Wei-Qiang ZHANG ,  Li-Zhi XU ,  Qi ZHANG

IPC分类号： H02M7/06 ,  G05F1/00

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： A control system includes a detection circuit, a control circuit, and a dummy load system. The detection circuit is operable to detect a voltage level change of a direct-current voltage and output an activating signal when detecting the voltage level change of the DC voltage. The control circuit is operable to receive the activating signal. The dummy load system is electrically connected to the control circuit, and the control circuit controls the dummy load system by generating a turn-on signal in response to receiving the activating signal. A dimmer system and a control method thereof are further disclosed in herein.

摘要翻译： 控制系统包括检测电路，控制电路和虚拟负载系统。 检测电路可操作以检测直流电压的电压电平变化，并在检测到直流电压的电压电平变化时输出启动信号。 控制电路可操作以接收激活信号。 虚拟负载系统电连接到控制电路，并且控制电路响应于接收到激活信号而产生导通信号来控制虚拟负载系统。 本文进一步公开了一种调光系统及其控制方法。

公开(公告)号：US20130119874A1

公开(公告)日：2013-05-16

申请号：US13541680

申请日：2012-07-04

申请人： Wei-Qiang ZHANG ,  Yan ZHONG ,  Jian-Ping YING

发明人： Wei-Qiang ZHANG ,  Yan ZHONG ,  Jian-Ping YING

IPC分类号： H05B37/02

CPC分类号： H05B37/02 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0827 ,  Y02B20/345 ,  Y02B20/347

摘要： A voltage regulation circuit includes a voltage conversion module, an LED driving module and a control module. The voltage conversion module is operable to receive and convert the first voltage to a second voltage. Each LED driving loop of the LED driving module has a current regulator and an LED string. The control module is operable to output a control signal according to the received input signal which reflects the current flowing through the LED driving module. The voltage conversion module regulates the second voltage according to the control signal, such that the regulated second voltage still keeps the brightness of the LED string of each LED driving loop unchanged.

摘要翻译： 电压调节电路包括电压转换模块，LED驱动模块和控制模块。 电压转换模块可操作以接收第一电压并将其转换为第二电压。 LED驱动模块的每个LED驱动环路具有电流调节器和LED串。 控制模块可操作以根据接收到的反映流过LED驱动模块的电流的输入信号输出控制信号。 电压转换模块根据控制信号调节第二电压，使得调节的第二电压仍保持每个LED驱动环路的LED串的亮度不变。

公开(公告)号：US20130026952A1

公开(公告)日：2013-01-31

申请号：US13241220

申请日：2011-09-23

申请人： Wei-Qiang ZHANG ,  Jian-Ping YING

发明人： Wei-Qiang ZHANG ,  Jian-Ping YING

IPC分类号： H05B37/02

CPC分类号： H05B41/2828 ,  H05B41/391

摘要： An electronic ballast includes an inverter circuit, a variable inductor unit and a control circuit. The variable inductor unit is electrically coupled between the inverter circuit and an illumination device. The control circuit controls the variable inductor unit according to an operation mode of the inverter circuit such that an equivalent inductance of the variable inductor unit has a variation fed back to the inverter circuit, to further change the operation mode of the inverter circuit. An illumination apparatus and a method for protecting the electronic ballast are also disclosed.

摘要翻译： 电子镇流器包括逆变器电路，可变电感器单元和控制电路。 可变电感器单元电耦合在逆变器电路和照明装置之间。 控制电路根据逆变器电路的运行模式控制可变电感器单元，使得可变电感器单元的等效电感具有反馈到逆变器电路的变化，以进一步改变逆变器电路的操作模式。 还公开了一种用于保护电子镇流器的照明装置和方法。