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1. 发明授权

US09013106B2 Lamp ballast having filament heating apparatus for gas discharge lamp 有权
标题翻译：具有气体放电灯灯丝加热装置的灯具镇流器
公开(公告)号：US09013106B2
公开(公告)日：2015-04-21
申请号：US13242170
申请日：2011-09-23
申请人： Weiqiang Zhang , Qi Zhang , Yan Zhong , Ching-Ho Chou , Jianping Ying
发明人： Weiqiang Zhang , Qi Zhang , Yan Zhong , Ching-Ho Chou , Jianping Ying
IPC分类号： H01J13/32 , H05B41/295
CPC分类号： H05B41/295
摘要： Provided is a lamp ballast having a filament heating apparatus for gas discharge lamp, including a PFC converter for receiving an AC input voltage and converting the AC input voltage into a DC bus voltage; an inverter connected to an output end of the PFC converter for converting the DC bus voltage into an AC output voltage for driving gas discharge lamps; and a filament heating apparatus connected to the output end of the PFC converter. The filament heating apparatus includes an auxiliary heating circuit for converting the DC bus voltage into a heating power for pre-heating the filaments of the gas discharge lamps; and a control circuit connected to the inverter and the auxiliary heating circuit for generating an auxiliary voltage according to the heating power to activate the PFC converter. After the auxiliary heating circuit has been operating for a predetermined period of time, the auxiliary heating circuit is turned off first and then the inverter is turned on; or otherwise the inverter is turned on first and then the auxiliary heating circuit is turned off.
摘要翻译：提供一种具有用于气体放电灯的灯丝加热装置的灯镇流器，包括用于接收AC输入电压并将AC输入电压转换成DC总线电压的PFC转换器; 连接到PFC转换器的输出端的逆变器，用于将DC总线电压转换成用于驱动气体放电灯的AC输出电压; 以及连接到PFC转换器的输出端的灯丝加热装置。灯丝加热装置包括辅助加热电路，用于将直流母线电压转换成用于对气体放电灯的细丝进行预热的加热功率; 以及连接到逆变器和辅助加热电路的控制电路，用于根据加热功率产生辅助电压以激活PFC转换器。在辅助加热电路已经运行预定时间段之后，首先关闭辅助加热电路，然后使逆变器接通; 否则逆变器首先接通，然后辅助加热电路关闭。

2. 发明申请

US20120313527A1 LAMP BALLAST HAVING FILAMENT HEATING APPARATUS FOR GAS DISCHARGE LAMP 有权
标题翻译：具有气体放电灯的灯泡加热装置的灯管
公开(公告)号：US20120313527A1
公开(公告)日：2012-12-13
申请号：US13242170
申请日：2011-09-23
申请人： Weiqiang Zhang , Qi Zhang , Yan Zhong , Ching-Ho Chou , Jianping Ying
发明人： Weiqiang Zhang , Qi Zhang , Yan Zhong , Ching-Ho Chou , Jianping Ying
IPC分类号： H05B41/08
CPC分类号： H05B41/295
摘要： Provided is a lamp ballast having a filament heating apparatus for gas discharge lamp, including a PFC converter for receiving an AC input voltage and converting the AC input voltage into a DC bus voltage; an inverter connected to an output end of the PFC converter for converting the DC bus voltage into an AC output voltage for driving gas discharge lamps; and a filament heating apparatus connected to the output end of the PFC converter. The filament heating apparatus includes an auxiliary heating circuit for converting the DC bus voltage into a heating power for pre-heating the filaments of the gas discharge lamps; and a control circuit connected to the inverter and the auxiliary heating circuit for generating an auxiliary voltage according to the heating power to activate the PFC converter. After the auxiliary heating circuit has been operating for a predetermined period of time, the auxiliary heating circuit is turned off first and then the inverter is turned on; or otherwise the inverter is turned on first and then the auxiliary heating circuit is turned off.
摘要翻译：提供一种具有用于气体放电灯的灯丝加热装置的灯镇流器，包括用于接收AC输入电压并将AC输入电压转换成DC总线电压的PFC转换器; 连接到PFC转换器的输出端的逆变器，用于将DC总线电压转换成用于驱动气体放电灯的AC输出电压; 以及连接到PFC转换器的输出端的灯丝加热装置。灯丝加热装置包括辅助加热电路，用于将直流母线电压转换成用于对气体放电灯的细丝进行预热的加热功率; 以及连接到逆变器和辅助加热电路的控制电路，用于根据加热功率产生辅助电压以激活PFC转换器。在辅助加热电路已经运行预定时间段之后，首先关闭辅助加热电路，然后使逆变器接通; 否则逆变器首先接通，然后辅助加热电路关闭。

3. 发明授权

US08890424B2 Illumination device, illumination system, and lamp 有权
标题翻译：照明装置，照明系统和灯
公开(公告)号：US08890424B2
公开(公告)日：2014-11-18
申请号：US13547213
申请日：2012-07-12
申请人： Lizhi Xu , Weiqiang Zhang , Jianping Ying , Ching-Ho Chou , Hsiang-Chen Wu
发明人： Lizhi Xu , Weiqiang Zhang , Jianping Ying , Ching-Ho Chou , Hsiang-Chen Wu
IPC分类号： H05B37/00
CPC分类号： H05B33/0815 , H05B33/0851 , Y02B20/347
摘要： The present invention provides an illumination device, an illumination system, and a lamp. The illumination system includes the illumination device and a light modulation module. The illumination device includes a light emitting diode (LED) array, an alternating current (AC) current source, and an output power control module. The AC current source is electrically coupled to the LED array. The output power control module is electrically coupled to the LED array and the AC current source. The LED array, the AC current source, and the output power control module together form a closed-loop control loop. The light modulation module is electrically coupled to the closed-loop control loop for modulating illumination brightness of the LED.
摘要翻译：本发明提供一种照明装置，照明系统和灯。照明系统包括照明装置和光调制模块。照明装置包括发光二极管（LED）阵列，交流（AC）电流源和输出功率控制模块。 AC电流源电耦合到LED阵列。输出功率控制模块电耦合到LED阵列和AC电流源。 LED阵列，AC电流源和输出功率控制模块一起形成闭环控制回路。光调制模块电耦合到闭环控制环路，用于调制LED的照明亮度。

4. 发明授权

US08884542B2 Self-oscillating dimmable electronic ballast 有权
标题翻译：自调光电子镇流器
公开(公告)号：US08884542B2
公开(公告)日：2014-11-11
申请号：US13314820
申请日：2011-12-08
申请人： Weiqiang Zhang , Yan Zhong , Jianping Ying
发明人： Weiqiang Zhang , Yan Zhong , Jianping Ying
IPC分类号： H05B41/16 , H05B41/282 , H05B41/295
CPC分类号： H05B41/295 , H05B41/2828
摘要： An electronic ballast for driving a light-emitting device, includes a square wave generator having a plurality of switch elements for converting a DC input voltage into a square-wave AC voltage. A transformer has a driving winding and a plurality of inductive windings mutually connected with each other, in which at least a portion of the inductive windings are respectively connected to a control terminal of the switch element. A resonant circuit connects the driving winding and a light-emitting device and converts the square-wave voltage into an AC output voltage to drive the light-emitting device. An auxiliary control unit connected to the transformer regulates a voltage waveform of the driving winding or a voltage waveform of the inductive winding according to a control signal, thereby changing the voltage waveform of the inductive winding connected to the switch element to adjust the switching frequencies of the switch elements.
摘要翻译：一种用于驱动发光器件的电子镇流器，包括具有用于将DC输入电压转换为方波AC电压的多个开关元件的方波发生器。变压器具有彼此相互连接的驱动绕组和多个感应绕组，其中至少一部分感应绕组分别连接到开关元件的控制端子。谐振电路连接驱动绕组和发光装置，并将方波电压转换成AC输出电压以驱动发光装置。连接到变压器的辅助控制单元根据控制信号调节驱动绕组的电压波形或电感性绕组的电压波形，从而改变连接到开关元件的电感线圈的电压波形，以调节开关频率开关元件。

5. 发明申请

US20130049629A1 ELECTRONIC BALLAST 有权
标题翻译：电子镇流器
公开(公告)号：US20130049629A1
公开(公告)日：2013-02-28
申请号：US13314820
申请日：2011-12-08
申请人： Weiqiang Zhang , Yan Zhong , Jianping Ying
发明人： Weiqiang Zhang , Yan Zhong , Jianping Ying
IPC分类号： H05B41/16
CPC分类号： H05B41/295 , H05B41/2828
摘要： An electronic ballast for driving a light-emitting device, includes a square wave generator having a plurality of switch elements for converting a DC input voltage into a square-wave AC voltage. A transformer has a driving winding and a plurality of inductive windings mutually connected with each other, in which at least a portion of the inductive windings are respectively connected to a control terminal of the switch element. A resonant circuit connects the driving winding and a light-emitting device and converts the square-wave voltage into an AC output voltage to drive the light-emitting device. An auxiliary control unit connected to the transformer regulates a voltage waveform of the driving winding or a voltage waveform of the inductive winding according to a control signal, thereby changing the voltage waveform of the inductive winding connected to the switch element to adjust the switching frequencies of the switch elements.
摘要翻译：一种用于驱动发光器件的电子镇流器，包括具有用于将DC输入电压转换为方波AC电压的多个开关元件的方波发生器。变压器具有彼此相互连接的驱动绕组和多个感应绕组，其中至少一部分感应绕组分别连接到开关元件的控制端子。谐振电路连接驱动绕组和发光装置，并将方波电压转换成AC输出电压以驱动发光装置。连接到变压器的辅助控制单元根据控制信号调节驱动绕组的电压波形或电感性绕组的电压波形，从而改变连接到开关元件的电感线圈的电压波形，以调节开关频率开关元件。

6. 发明申请

US20130043808A1 MULTI-CHANNEL LED DRIVER CIRCUIT 有权
标题翻译：多通道LED驱动电路
公开(公告)号：US20130043808A1
公开(公告)日：2013-02-21
申请号：US13297460
申请日：2011-11-16
申请人： Weiqiang Zhang , Lizhi Xu , Qi Zhang , Jianping Ying
发明人： Weiqiang Zhang , Lizhi Xu , Qi Zhang , Jianping Ying
IPC分类号： H05B37/02
CPC分类号： H05B33/0815
摘要： Provided is a multi-channel LED driver circuit, including a power supply device for providing an independent voltage source; a plurality of regulating circuits connected to the power supply device and the light light-emitting diode arrays for receiving a voltage from the voltage source and providing a plurality of output currents to the light-emitting diode arrays, and thereby generating a plurality of error signals
摘要翻译：提供了一种多通道LED驱动器电路，包括用于提供独立电压源的电源装置; 连接到电源装置的多个调节电路和用于从电压源接收电压并向发光二极管阵列提供多个输出电流的发光二极管阵列，从而产生多个误差信号

7. 发明申请

US20130026936A1 DRIVING CIRCUIT SYSTEM FOR GAS DISCHARGE LAMP AND THE CONTROL METHOD THEREOF 有权
标题翻译：用于气体放电灯的驱动电路系统及其控制方法
公开(公告)号：US20130026936A1
公开(公告)日：2013-01-31
申请号：US13242094
申请日：2011-09-23
申请人： Qi Zhang , Weiqiang Zhang , Jianping Ying
发明人： Qi Zhang , Weiqiang Zhang , Jianping Ying
IPC分类号： H05B41/36
CPC分类号： H05B41/38
摘要： A driving circuit system for a gas discharge lamp includes a power circuit having a switch for converting an input voltage into a lamp voltage for driving the gas discharge lamp, a lamp current detecting circuit connected to the power circuit or the gas discharge lamp for detecting a lamp current, a feedback circuit connected to the lamp current detecting circuit for generating a lamp current feedback signal, a constant power control circuit for generating a corrected current reference signal, and a power control circuit connected to the feedback circuit, the constant power control circuit, and the switch of the power circuit for generating a first modulating signal in accordance with the lamp current feedback signal and the corrected current reference signal for driving the switch to turn on or off, thereby substantially maintaining a lamp power of the gas discharge lamp at a constant value.
摘要翻译：一种用于气体放电灯的驱动电路系统包括电源电路，其具有用于将输入电压转换为用于驱动气体放电灯的灯电压的开关，连接到电源电路的灯电流检测电路或用于检测气体放电灯的气体放电灯连接到用于产生灯电流反馈信号的灯电流检测电路的反馈电路，用于产生校正的电流参考信号的恒功率控制电路和连接到反馈电路的功率控制电路，恒功率控制电路以及用于根据灯电流反馈信号产生第一调制信号的电源电路的开关和用于驱动开关导通或关断的校正电流参考信号，从而基本上将气体放电灯的灯功率维持在恒定值。

8. 发明申请

US20130020966A1 METHOD AND CIRCUIT FOR IMPROVING CREST FACTOR OF GAS DISCHARGE LAMP 有权
标题翻译：改进气体放电灯的启动因子的方法和电路
公开(公告)号：US20130020966A1
公开(公告)日：2013-01-24
申请号：US13533671
申请日：2012-06-26
申请人： Qi Zhang , Weiqiang Zhang , Jianping Ying
发明人： Qi Zhang , Weiqiang Zhang , Jianping Ying
IPC分类号： H05B37/02
CPC分类号： H05B41/2858 , H05B41/2828
摘要： A method and circuit for improving the crest factor of the gas discharge lamp. The method includes: the signal of the gas discharge lamp can be sampled to get a status signal; whether the present stage of the gas discharge lamp is at warm up stage or constant power stage can be judged based on the result of comparison between the status signal and a preset value; preset parameters can be selected based on the stage of the gas discharge lamp, the first parameter can be selected when the gas discharge lamp is at a warm up stage, and the second parameter can be selected when the gas discharge lamp is at a constant power stage; a control signal can be outputted during the lamp current commutation based on the selected first or second parameter to improve the crest factor of the gas discharge lamp.
摘要翻译：一种用于改善气体放电灯的波峰因数的方法和电路。该方法包括：对气体放电灯的信号进行采样，得到状态信号; 可以基于状态信号和预设值之间的比较结果判断气体放电灯的当前阶段是处于预热阶段还是恒定功率阶段; 可以根据气体放电灯的阶段选择预设参数，当气体放电灯处于预热阶段时，可以选择第一个参数，而当气体放电灯处于恒定功率时可以选择第二个参数阶段; 可以基于所选择的第一或第二参数在灯电流换向期间输出控制信号，以改善气体放电灯的波峰因数。

9. 发明申请

US20120313539A1 BALLAST WITH CONTROL DEVICE FOR CONTROLLING THE OPEN-CIRCUIT VOLTAGE 有权
标题翻译：具有用于控制开路电压的控制装置的压力
公开(公告)号：US20120313539A1
公开(公告)日：2012-12-13
申请号：US13239072
申请日：2011-09-21
申请人： Qi Zhang , Weiqiang Zhang , Jianping Ying
发明人： Qi Zhang , Weiqiang Zhang , Jianping Ying
IPC分类号： H05B41/36
CPC分类号： H05B41/2886 , Y02B20/202
摘要： A ballast which controls the open-circuit voltage of the ballast. The ballast includes a power factor corrector (PFC) for receiving an AC input voltage and converting the AC input voltage into a power factor corrected DC voltage; a DC/DC converter connected to the PFC and having a switch placed at a low-voltage side of the DC/DC converter for converting the DC voltage of the PFC into a DC output voltage according to the switching operation of the switch; a controller connected to a control terminal of the switch of the DC/DC converter for sending a switching control signal to control the switch; and an open-circuit voltage controller for detecting a voltage associated with the open-circuit voltage of the ballast and regulating the duty ratio or pulse density or switching frequency of the switching control signal in response to the results of the detection, thereby controlling the open-circuit voltage.
摘要翻译：控制镇流器的开路电压的镇流器。镇流器包括用于接收AC输入电压并将AC输入电压转换成功率因数校正的DC电压的功率因数校正器（PFC）; DC / DC转换器，其连接到PFC并且具有放置在DC / DC转换器的低压侧的开关，用于根据开关的开关操作将PFC的DC电压转换为DC输出电压; 连接到DC / DC转换器的开关的控制端子的控制器，用于发送开关控制信号以控制开关; 以及开路电压控制器，用于检测与镇流器的开路电压相关联的电压，并响应于检测结果调节开关控制信号的占空比或脉冲密度或开关频率，从而控制开路电路电压。

10. 发明授权

US09006988B2 Method of controlling ignition circuit and ignition circuit using the same 有权
标题翻译：控制点火电路和使用其的点火电路的方法
公开(公告)号：US09006988B2
公开(公告)日：2015-04-14
申请号：US13168437
申请日：2011-06-24
申请人： Qi Zhang , Weiqiang Zhang , Jianping Ying
发明人： Qi Zhang , Weiqiang Zhang , Jianping Ying
IPC分类号： H05B41/36 , H05B41/04
CPC分类号： H05B41/042
摘要： A method of controlling an ignition circuit to output an excitation voltage is disclosed. The ignition circuit is used to excite a discharge lamp and includes a transformer and a switch element which is connected to a primary winding of the transformer. The method of controlling the ignition circuit comprises steps of: (a) receiving a control signal which is set in accordance with a waveform characteristic of a predetermined excitation voltage to control an impedance of the switch element; (b) controlling a primary current in the primary winding or a primary voltage across the primary winding of the transformer by controlling the impedance of the switch element; and (c) generating the excitation voltage by the secondary winding of the transformer in accordance with the primary current or the primary voltage so as to excite the discharge lamp.
摘要翻译：公开了一种控制点火电路输出激励电压的方法。点火电路用于激发放电灯，并包括变压器和与变压器的初级绕组连接的开关元件。控制点火电路的方法包括以下步骤：（a）接收根据预定激励电压的波形特性设定的控制信号，以控制开关元件的阻抗; （b）通过控制开关元件的阻抗来控制初级绕组中的初级电流或变压器的初级绕组两端的初级电压; 和（c）根据初级电流或初级电压通过变压器的次级绕组产生激励电压，以激励放电灯。

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