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公开(公告)号：US20110273099A1
公开(公告)日：2011-11-10
申请号：US13110204
申请日：2011-05-18
IPC分类号： H05B37/02
CPC分类号： H05B33/0812 , H05B33/0809 , Y02B20/343
摘要： An LED driving device includes a rectifier circuit, a first LED module, a first switch, a second LED module, a second switch, and a diode module. The rectifier circuit includes a pair of input terminals and first and second output terminals for receiving an AC voltage and rectifying the AC voltage to output a pulsed rectified voltage. The first LED module and first switch connected in series are electrically connected between the first and second output terminals of the rectifier circuit. The second LED module and second switch connected in series are electrically connected between the first and second output terminals of the rectifier circuit. The diode module is connected between a common node of the first LED module and the first switch and a common node of the second LED module and the second switch.
摘要翻译： LED驱动装置包括整流电路，第一LED模块，第一开关，第二LED模块，第二开关和二极管模块。 整流电路包括一对输入端子和用于接收AC电压并整流AC电压以输出脉冲整流电压的第一和第二输出端子。 串联连接的第一LED模块和第一开关电连接在整流电路的第一和第二输出端子之间。 串联连接的第二LED模块和第二开关电连接在整流电路的第一和第二输出端子之间。 二极管模块连接在第一LED模块的公共节点与第一开关和第二LED模块和第二开关的公共节点之间。
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公开(公告)号：US20070126530A1
公开(公告)日：2007-06-07
申请号：US11290583
申请日：2005-12-01
申请人： Jiann-Fuh Chen , Cheng-Chi Tai , Tsorng-Juu Liang , Ching-Chau Su , Ching-Shun Yi , Chien-Yi Chen
发明人： Jiann-Fuh Chen , Cheng-Chi Tai , Tsorng-Juu Liang , Ching-Chau Su , Ching-Shun Yi , Chien-Yi Chen
IPC分类号： H03H9/00
CPC分类号： H01F27/33 , H01F27/2847 , H01F27/2852
摘要： The present invention relates to a high-voltage transformer coil with acoustic wave guiding function, which comprises a plurality of wound wires, an insulated material for packaging said wound wires to form a coil, a high-voltage connector formed on a side of said coil, and at least one wave guide formed on the other side of said coil to transmit acoustic waves generated due to discharge. The high-voltage coil for transmitting acoustic wave of the present invention is particularly suitable for cast resin transformers.
摘要翻译： 本发明涉及一种具有声波引导功能的高压变压器线圈，其包括多条缠绕线，用于封装所述绕线的绝缘材料以形成线圈，形成在所述线圈一侧的高压连接器 以及形成在所述线圈的另一侧上的至少一个波导，以传输由于放电而产生的声波。 本发明的用于传播声波的高压线圈特别适用于铸塑树脂变压器。
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公开(公告)号：US06856102B1
公开(公告)日：2005-02-15
申请号：US10845174
申请日：2004-05-14
申请人： Tsai-Fu Lin , Tsorng-Juu Liang , Hau-Chen Yen
发明人： Tsai-Fu Lin , Tsorng-Juu Liang , Hau-Chen Yen
IPC分类号： H05B41/288 , G05F1/00
CPC分类号： H05B41/2886
摘要： A three-stage electronic ballast for metal halide lamps mainly comprises a step-up converter, a step-down converter and a full-bridge DC-AC converter, wherein the step-down converter operates an inductor in a continuous boundary current mode to achieve reducing power loss and enhancing efficiency. Equipped with a micro processor, the electronic ballast further possesses the function of power regulation. The electronic ballast can be added with various protective functions without complex control circuits and sensing elements, thereby becoming a high-quality and low-cost electronic ballast for metal halide lamps.
摘要翻译： 金属卤化物灯的三级电子镇流器主要包括升压转换器，降压转换器和全桥DC-AC转换器，其中降压转换器以连续边界电流模式操作电感器以实现 降低功率损耗并提高效率。 配有微处理器，电子镇流器还具有功率调节功能。 电子镇流器可以添加各种保护功能，无需复杂的控制电路和感应元件，从而成为金属卤化物灯的高质量和低成本电子镇流器。
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公开(公告)号：US20110292690A1
公开(公告)日：2011-12-01
申请号：US13064650
申请日：2011-04-06
IPC分类号： H02M3/335
CPC分类号： H02M3/155
摘要： A multi-winding high step-up DC-DC converter includes a three-winding transformer to transform a low DC voltage to a high DC voltage; a power switch to control the energy flux of the primary winding of the three-winding transformer based on turning on/off the power switch; a first diode to control the current of the first secondary winding of the three-winding transformer; a second diode to control the current of the second secondary winding of the three-winding transformer; and a third diode to control the current of the primary winding. When the DC-DC converter is in the first operation state, the switch and the second diode are in on state, and the first and the third diodes are in off state. When the DC-DC converter is in the second operation state, the switch and the second diode are in off state, and the first and the third diodes are in on state.
摘要翻译： 多绕组高升压DC-DC转换器包括一个三绕组变压器，用于将低直流电压转换成高直流电压; 电源开关，用于控制三绕组变压器的初级绕组的能量通量，其基于电源开关的接通/断开; 用于控制三绕组变压器的第一次级绕组的电流的第一二极管; 用于控制三绕组变压器的第二次级绕组的电流的第二二极管; 以及用于控制初级绕组的电流的第三二极管。 当DC-DC转换器处于第一操作状态时，开关和第二二极管处于导通状态，第一和第三二极管处于断开状态。 当DC-DC转换器处于第二操作状态时，开关和第二二极管处于截止状态，第一和第三二极管处于导通状态。
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公开(公告)号：US20110156602A1
公开(公告)日：2011-06-30
申请号：US12942245
申请日：2010-11-09
CPC分类号： H05B33/0806
摘要： An LED driving device includes: an LED circuit having an input side for receiving a driving current corresponding to an AC input voltage from an external power source when the magnitude of a driving voltage across the input side is greater than a predetermined value; and a clamp circuit coupled between the input side of the LED circuit and the external power source, and permitting the driving current to pass through for clamping the magnitude of the driving current to a predetermined current level and for clamping the magnitude of the driving voltage to a predetermined voltage level.
摘要翻译： LED驱动装置包括：LED电路，其具有输入侧，用于当输入侧的驱动电压的大小大于预定值时从外部电源接收与AC输入电压相对应的驱动电流; 以及钳位电路，其耦合在LED电路的输入侧和外部电源之间，并且允许驱动电流通过，以将驱动电流的幅度钳位到预定电流电平并将驱动电压的幅度钳位到 预定的电压电平。
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公开(公告)号：US20100308743A1
公开(公告)日：2010-12-09
申请号：US12630268
申请日：2009-12-03
IPC分类号： H05B41/16
CPC分类号： H05B33/0809 , H05B33/0821 , Y02B20/341
摘要： An LED driving device includes: an LED unit outputting a driving current corresponding to an external AC input voltage; and a current limiting unit receiving the driving current from the LED unit, including a parallel connection of a bypass switch and a current limiting circuit, and operable so as to permit flow of the driving current through one of the bypass switch and the current limiting circuit such that the current limiting unit has a first conduction impedance when the bypass switch is in an ON-state, and a second conduction impedance larger than the first conduction impedance when the bypass switch is in an OFF-state.
摘要翻译： LED驱动装置包括：LED单元，其输出与外部AC输入电压对应的驱动电流; 以及电流限制单元，其接收来自LED单元的驱动电流，包括旁路开关和限流电路的并联连接，并且可操作以允许驱动电流流过旁路开关和限流电路之一 使得当旁路开关处于导通状态时，限流单元具有第一导通阻抗，并且当旁路开关处于断开状态时具有大于第一导通阻抗的第二导通阻抗。
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公开(公告)号：US08836229B2
公开(公告)日：2014-09-16
申请号：US13332942
申请日：2011-12-21
CPC分类号： H05B33/0812 , H05B33/0818 , Y02B20/348
摘要： An LED driver circuit includes: a bridge rectifier, a first compensation capacitor, a second compensation capacitor, and an LED module. The bridge rectifier is connected to an AC input power for producing a rectification output power. The first compensation capacitor is connected to a first rectification output terminal and an AC input terminal of the bridge rectifier. The second compensation capacitor is connected to a second rectification terminal and the AC input terminal of the bridge rectifier. The LED module is connected to the first rectification output terminal and the second rectification output terminal of the bridge rectifier. The first and second compensation capacitors in the present invention can effectively improve the total current harmonic distortion of the LED module and its utilization.
摘要翻译： LED驱动器电路包括：桥式整流器，第一补偿电容器，第二补偿电容器和LED模块。 桥式整流器连接到交流输入电源，用于产生整流输出功率。 第一补偿电容器连接到桥式整流器的第一整流输出端子和AC输入端子。 第二补偿电容器连接到桥式整流器的第二整流端子和AC输入端子。 LED模块连接到桥式整流器的第一整流输出端子和第二整流输出端子。 本发明的第一和第二补偿电容器可以有效地提高LED模块的总电流谐波失真及其利用。
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公开(公告)号：US08461765B2
公开(公告)日：2013-06-11
申请号：US13110204
申请日：2011-05-18
IPC分类号： H05B37/00
CPC分类号： H05B33/0812 , H05B33/0809 , Y02B20/343
摘要： An LED driving device includes a rectifier circuit, a first LED module, a first switch, a second LED module, a second switch, and a diode module. The rectifier circuit includes a pair of input terminals and first and second output terminals for receiving an AC voltage and rectifying the AC voltage to output a pulsed rectified voltage. The first LED module and first switch connected in series are electrically connected between the first and second output terminals of the rectifier circuit. The second LED module and second switch connected in series are electrically connected between the first and second output terminals of the rectifier circuit. The diode module is connected between a common node of the first LED module and the first switch and a common node of the second LED module and the second switch.
摘要翻译： LED驱动装置包括整流电路，第一LED模块，第一开关，第二LED模块，第二开关和二极管模块。 整流电路包括一对输入端子和用于接收交流电压并整流交流电压以输出脉冲整流电压的第一和第二输出端子。 串联连接的第一LED模块和第一开关电连接在整流电路的第一和第二输出端子之间。 串联连接的第二LED模块和第二开关电连接在整流电路的第一和第二输出端子之间。 二极管模块连接在第一LED模块的公共节点与第一开关和第二LED模块和第二开关的公共节点之间。
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公开(公告)号：US20120161650A1
公开(公告)日：2012-06-28
申请号：US13332942
申请日：2011-12-21
IPC分类号： H05B37/02
CPC分类号： H05B33/0812 , H05B33/0818 , Y02B20/348
摘要： An LED driver circuit includes: a bridge rectifier, a first compensation capacitor, a second compensation capacitor, and an LED module. The bridge rectifier is connected to an AC input power for producing a rectification output power. The first compensation capacitor is connected to a first rectification output terminal and an AC input terminal of the bridge rectifier. The second compensation capacitor is connected to a second rectification terminal and the AC input terminal of the bridge rectifier. The LED module is connected to the first rectification output terminal and the second rectification output terminal of the bridge rectifier. The first and second compensation capacitors in the present invention can effectively improve the total current harmonic distortion of the LED module and its utilization.
摘要翻译： LED驱动器电路包括：桥式整流器，第一补偿电容器，第二补偿电容器和LED模块。 桥式整流器连接到交流输入电源，用于产生整流输出功率。 第一补偿电容器连接到桥式整流器的第一整流输出端子和AC输入端子。 第二补偿电容器连接到桥式整流器的第二整流端子和AC输入端子。 LED模块连接到桥式整流器的第一整流输出端子和第二整流输出端子。 本发明的第一和第二补偿电容器可以有效地改善LED模块的总电流谐波失真及其利用。
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10.发明授权Simple partial discharge detector for power equipment using acoustic emission technique 失效使用声发射技术的电力设备的简单局部放电检测器公开(公告)号：US07180303B1
公开(公告)日：2007-02-20
申请号：US11290579
申请日：2005-12-01
申请人： Jiann-Fuh Chen , Chen-Chi Tai , Tsorng-Juu Liang , Ching-Chau Su , Ching-Shun Yi , Chien-Yi Chen
发明人： Jiann-Fuh Chen , Chen-Chi Tai , Tsorng-Juu Liang , Ching-Chau Su , Ching-Shun Yi , Chien-Yi Chen
IPC分类号： H01H9/50
CPC分类号： H01H9/50
摘要： The present invention relates to a simple detector for partial discharge with the acoustic emission technique, which provides essentially with an acoustic emission sensor being set on a power equipment. Still, the output of the acoustic emission sensor is connected with a preamplifier and a bandpass filter in turn and the output of the bandpass fitted up with a comparator. The signals of square waves generated by the comparator can be transmitted to a microprocessor as concurrently as a counter in the microprocessor can be used to count up times for partial discharge by seconds; then, the resulted times can be displayed. Consequently, it is convenient to determine whether the power equipment is necessarily maintained by means of counting up times for partial discharge.
摘要翻译： 本发明涉及一种使用声发射技术进行局部放电的简单检测器，其基本上提供设置在电力设备上的声发射传感器。 然而，声发射传感器的输出依次与前置放大器和带通滤波器连接，带通的输出装配有比较器。 由比较器产生的方波的信号可以与微处理器同时发送到微处理器中，可以用于在微处理器中计数次数以进行局部放电秒数; 那么，可以显示结果的时间。 因此，通过对局部放电的上升时间来确定电力设备是否必须保持是方便的。
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