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。

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。

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。

公开(公告)号：US08742670B2

公开(公告)日：2014-06-03

申请号：US13530380

申请日：2012-06-22

申请人： Yan Zhong ,  Weiqiang Zhang ,  JianPing Ying

发明人： Yan Zhong ,  Weiqiang Zhang ,  JianPing Ying

IPC分类号： H05B41/36 ,  H01J61/52

CPC分类号： H05B41/2828 ,  H05B41/3927

摘要： The electronic ballast includes: a square wave generator that includes a plurality of switching elements to convert a DC input voltage to an AC square wave output voltage; a transformer that includes a driving winding, a plurality of control windings, at least one inductive winding and at least one control driving circuit. The control windings controls the plurality of switching elements to turn on alternately; a resonant circuit that constitutes a resonant loop together with the driving winding is electrically connected with an output terminal of the square wave generator to drive the light emitting element. The control driving circuit is connected with two terminals of the inductive winding in parallel and receives a control signal to control a voltage across the inductive winding so as to control conducting time of at least one of the switching elements.

摘要翻译： 电子镇流器包括：方波发生器，其包括将DC输入电压转换为AC方波输出电压的多个开关元件; 包括驱动绕组，多个控制绕组，至少一个感应绕组和至少一个控制驱动电路的变压器。 控制绕组控制多个开关元件交替地接通; 与驱动绕组一起构成谐振回路的谐振电路与方波发生器的输出端电连接，驱动发光元件。 控制驱动电路并联连接电感线圈的两个端子，并接收控制信号以控制感应绕组两端的电压，以控制至少一个开关元件的导通时间。

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。

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。

公开(公告)号：US08994284B2

公开(公告)日：2015-03-31

申请号：US13339063

申请日：2011-12-28

申请人： Qi Zhang ,  Weiqiang Zhang ,  Jianping Ying

发明人： Qi Zhang ,  Weiqiang Zhang ,  Jianping Ying

IPC分类号： H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B41/288 ,  H05B41/282

CPC分类号： H05B41/288 ,  H05B41/2827 ,  H05B41/2881 ,  H05B41/2887

摘要： A high intensity discharge lamp (HID) control circuit and method are provided in the present invention. The circuit includes a first winding and a second winding, both of which are coupled with a series-connected inductor of an HID lamp circuit; a current zero point detector for detecting an inductor current zero crossing signal in the HID lamp circuit; an inductor current signal generator for generating an inductor current signal in the circuit to indicate a current value of the HID lamp; a modulator having input terminals connected to the current zero point detector and the inductor current signal generator, respectively, and an output terminal connected to a driving circuit for the HID lamp; and the driving circuit for driving switches in the HID lamp control circuit.

摘要翻译： 在本发明中提供了高强度放电灯（HID）控制电路和方法。 电路包括第一绕组和第二绕组，它们都与HID灯电路的串联连接的电感耦合; 用于检测HID灯电路中的电感器电流过零信号的电流零点检测器; 电感器电流信号发生器，用于在电路中产生电感器电流信号以指示HID灯的电流值; 分别具有连接到电流零点检测器和电感器电流信号发生器的输入端子的调制器和连接到HID灯的驱动电路的输出端子; 以及用于驱动HID灯控制电路中的开关的驱动电路。

公开(公告)号：US08917033B2

公开(公告)日：2014-12-23

申请号：US13688703

申请日：2012-11-29

申请人： Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying

发明人： Lizhi Xu ,  Weiqiang Zhang ,  Jianping Ying

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B37/02 ,  H05B33/089 ,  Y02B20/341

摘要： The present application discloses an open circuit protecting circuit, an open circuit protecting method and an illuminating apparatus. The open circuit protecting circuit is configured in an apparatus with a LED load being supplied with power by a current source, and comprises: a switch circuit, a timer circuit and a detecting circuit. When the LED load malfunctions, the open circuit protecting circuit carries out the following operations: the detecting circuit sends an enabling signal to the timer circuit, the timer circuit sends a driving signal with a set time to the switch circuit and the switch circuit is in the on-state during the set time, so as to make the LED load be short circuited to protect the circuit from being damaged. The open circuit protecting circuit can also resume to normal work automatically after the open circuited malfunction is cleared, and thus a hot-plugging function can be realized.

摘要翻译： 本申请公开了一种开路保护电路，开路保护方法和照明装置。 开路保护电路配置在LED负载由电流源供电的装置中，包括：开关电路，定时器电路和检测电路。 当LED负载发生故障时，开路保护电路进行以下操作：检测电路向定时器电路发送使能信号，定时器电路向开关电路发送设定时间的驱动信号，开关电路处于 在设定时间内的导通状态，以使LED负载短路，以保护电路免受损坏。 开路保护电路也可以在断路故障后自动恢复正常工作，从而实现热插拔功能。

公开(公告)号：US08816609B2

公开(公告)日：2014-08-26

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： G05F1/00 ,  H05B37/02 ,  H05B39/04 ,  H05B41/36 ,  H05B41/285 ,  H05B39/02 ,  H05B41/16 ,  H05B41/24 ,  H01J13/48 ,  H01J15/04 ,  H01J17/36 ,  H05B37/00 ,  H05B39/00 ,  H05B41/00 ,  H05B41/282

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。

公开(公告)号：US20120098452A1

公开(公告)日：2012-04-26

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

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。