-
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。
-
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。
-
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。
-
4.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。
-
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。
-
6.发明授权Light emitting diode driving device with a simple structure and an enhanced efficiency 有权发光二极管驱动装置结构简单，效率提高公开(公告)号：US08427071B2
公开(公告)日：2013-04-23
申请号：US12942245
申请日：2010-11-09
IPC分类号： G05F1/00 , H05B37/02 , H05B39/04 , H05B41/36 , H05B37/00 , H05B39/00 , H05B41/14 , H05B41/16 , H05B41/24
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。
-
公开(公告)号：US08374000B2
公开(公告)日：2013-02-12
申请号：US12929772
申请日：2011-02-15
CPC分类号： H02M3/285 , H02M3/33569 , H02M2001/0074 , H02M2001/009
摘要： An interleaved flyback converter device with leakage energy recycling includes: two flyback converters and an input power. Each flyback converter includes a capacitor, a switch, two diodes, and a transformer. The input power is connected to the capacitors of the two flyback converters respectively. By using the capacitors as input voltage, the two flyback converters are provided with lower voltage rating. The diodes are used to recycle leakage energy directly, and to clamp voltage on power components. Therefore, in addition to enhancing efficiency via recycling leakage energy, the two flyback converters have lower switching losses due to lower switching voltage.
摘要翻译： 具有泄漏能量回收的交错反激转换器装置包括：两个反激转换器和输入功率。 每个反激转换器包括电容器，开关，两个二极管和变压器。 输入功率分别连接到两个反激式转换器的电容器。 通过使用电容器作为输入电压，两个反激式转换器的额定电压较低。 二极管用于直接回收泄漏能量，并将功率元件上的电压钳位。 因此，除了通过再循环泄漏能量提高效率之外，两个反激式转换器由于较低的开关电压而具有较低的开关损耗。
-
公开(公告)号：US20120113688A1
公开(公告)日：2012-05-10
申请号：US12929772
申请日：2011-02-15
IPC分类号： H02M3/335
CPC分类号： H02M3/285 , H02M3/33569 , H02M2001/0074 , H02M2001/009
摘要： An interleaved flyback converter device with leakage energy recycling includes: two flyback converters and an input power. Each flyback converter includes a capacitor, a switch, two diodes, and a transformer. The input power is connected to the capacitors of the two flyback converters respectively. By using the capacitors as input voltage, the two flyback converters are provided with lower voltage rating. The diodes are used to recycle leakage energy directly, and to clamp voltage on power components. Therefore, in addition to enhancing efficiency via recycling leakage energy, the two flyback converters have lower switching losses due to lower switching voltage.
摘要翻译： 具有泄漏能量回收的交错反激转换器装置包括：两个反激转换器和输入功率。 每个反激转换器包括电容器，开关，两个二极管和变压器。 输入功率分别连接到两个反激式转换器的电容器。 通过使用电容器作为输入电压，两个反激式转换器的额定电压较低。 二极管用于直接回收泄漏能量，并将功率元件上的电压钳位。 因此，除了通过再循环泄漏能量提高效率之外，两个反激式转换器由于较低的开关电压而具有较低的开关损耗。
-
公开(公告)号：US07339447B2
公开(公告)日：2008-03-04
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： H01P3/00
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。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.015 秒)
