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    • 31. 发明授权
    • Protection circuit and discharge lamp driving device employing the same
    • 采用该保护电路和放电灯驱动装置的保护电路和放电灯驱动装置
    • US07986106B2
    • 2011-07-26
    • US12277228
    • 2008-11-24
    • Hung-Yi ChenChi-Hsiung LeeYu-Hsiao Chao
    • Hung-Yi ChenChi-Hsiung LeeYu-Hsiao Chao
    • H05B41/36
    • H05B41/2828
    • A discharge lamp driving device includes a power stage circuit, a transformer circuit, a control circuit, a feedback circuit and a lamp protection circuit. The lamp protection circuit includes a current sensing circuit, a reference voltage selecting circuit, a comparing circuit and a protection signal generating circuit. The current sensing circuit senses current signals flowing through the lamps, and transforms the current signals to voltage signals. The reference voltage selecting circuit is connected to the current sensing circuit. The comparing circuit is connected to the current sensing circuit and the comparing circuit. The protection signal generating circuit is connected between the comparing circuit and the control circuit. The control circuit is connected to the comparing circuit.
    • 放电灯驱动装置包括功率级电路,变压器电路,控制电路,反馈电路和灯保护电路。 灯保护电路包括电流检测电路,参考电压选择电路,比较电路和保护信号发生电路。 电流感测电路感测流过灯的电流信号,并将电流信号转换成电压信号。 参考电压选择电路连接到电流检测电路。 比较电路连接到电流检测电路和比较电路。 保护信号发生电路连接在比较电路和控制电路之间。 控制电路连接到比较电路。
    • 32. 发明授权
    • Apparatus for driving a plurality of lamps
    • 用于驱动多个灯的装置
    • US07443108B2
    • 2008-10-28
    • US11309108
    • 2006-06-23
    • Tien-Hsiang MengChi-Hsiung Lee
    • Tien-Hsiang MengChi-Hsiung Lee
    • H05B41/16
    • H05B41/2822H05B41/245
    • A power system for driving a plurality of lamps includes a transformer circuit, a current balancing circuit, and a light source. The transformer circuit includes a plurality of transformers in a quantity denoted by N, and each of the transformers has a first, a second, a third, and a fourth output ends. The current balancing circuit includes a plurality of current balancing units each having two output ends. The 2Nth current balancing unit is connected to a fourth output end of the Nth transformer, and the (2N−1)th current balancing unit is connected to a first output end of the Nth transformer. The light source has a plurality of lamps each having one end connected to a respective output end of the current balancing units and another end grounded. The numbers of the current balancing units and the lamps are respectively twice and four times the quantity N of the transformers.
    • 用于驱动多个灯的电力系统包括变压器电路,电流平衡电路和光源。 变压器电路包括由N表示的量的多个变压器,并且每个变压器具有第一,第二,第三和第四输出端。 电流平衡电路包括多个电流平衡单元,每个电流平衡单元具有两个输出端。 第2N电流平衡单元连接到第N变压器的第四输出端,并且第(2N-1)电流平衡单元连接到第N变压器的第一输出端。 光源具有多个灯,每个灯的一端连接到电流平衡单元的相应输出端,另一端接地。 电流平衡单元和灯的数量分别是变压器数量N的两倍和四倍。
    • 35. 发明授权
    • Device for driving light sources
    • 驱动光源的装置
    • US07365502B2
    • 2008-04-29
    • US11473789
    • 2006-06-23
    • Tien-Hsiang MengChi-Hsiung LeeChe-Chen Fan ChiangKuo-Chi Liu
    • Tien-Hsiang MengChi-Hsiung LeeChe-Chen Fan ChiangKuo-Chi Liu
    • H05B37/02
    • H05B41/2827
    • A device for driving a light source (L11) including a first lamp (a1) and a second lamp (a2) includes two power supply circuits, two transformers (12, 12′), and two current balancing components (13, 13′). Each power supply circuit includes a direct current (DC) power source (10 or 10′) and a DC to alternating current (AC) converter (11 or 11′). The DC/AC converters convert DC signals received from the corresponding DC power sources to AC signals. The transformers correspondingly convert the AC signals to other AC signals. The current balancing components are respectively connected between the transformers and the lamps. The feedback circuits correspondingly feed back current flowing through the lamps to the DC/AC converters.
    • 用于驱动包括第一灯(1< 1>)和第二灯(1< 2> 2>)的光源(L 11)的装置包括两个 电源电路,两个变压器(12,12')和两个电流平衡组件(13,13')。 每个电源电路包括直流(DC)电源(10或10')和直流到交流(AC)转换器(11或11')。 DC / AC转换器将从相应直流电源接收的直流信号转换为交流信号。 变压器相应地将AC信号转换为其他AC信号。 电流平衡组件分别连接在变压器和灯之间。 反馈电路相应地将流过灯的电流反馈到DC / AC转换器。
    • 36. 发明申请
    • Device for driving a light source module
    • 用于驱动光源模块的装置
    • US20070188108A1
    • 2007-08-16
    • US11546660
    • 2006-10-11
    • Yu-Hsiao ChaoTsang-Chuan LinChi-Hsiung Lee
    • Yu-Hsiao ChaoTsang-Chuan LinChi-Hsiung Lee
    • H05B41/16
    • H05B41/2824Y02B20/186
    • A driving device for driving a light source module (32) includes a switch circuit (30), a transformer circuit (31), a voltage sensing circuit (34), a current sensing circuit (35), and a PWM controller (33). The switch circuit converts a received direct current (DC) power signal to an alternating current (AC) signal. The transformer circuit converts the AC signal to an appropriate signal to drive the light source module. The voltage sensing circuit receives the DC power signal and senses a voltage level of the DC power signal. The current sensing circuit receives the DC power signal and senses a current level of the DC power signal. The PWM controller controls the AC signal output from the switch circuit according to the sensed voltage and current levels.
    • 用于驱动光源模块(32)的驱动装置包括开关电路(30),变压器电路(31),电压感测电路(34),电流检测电路(35)和PWM控制器(33) 。 开关电路将接收的直流(DC)功率信号转换成交流(AC)信号。 变压器电路将AC信号转换成适当的信号以驱动光源模块。 电压检测电路接收直流电力信号并感测直流电力信号的电压电平。 电流检测电路接收直流电源信号并感测直流电源信号的电流电平。 PWM控制器根据感测到的电压和电流来控制从开关电路输出的交流信号。
    • 37. 发明申请
    • POWER SUPPLY SYSTEM
    • 电源系统
    • US20120049624A1
    • 2012-03-01
    • US12906129
    • 2010-10-17
    • CHI-HSIUNG LEECHIH-CHANG CHANGTA-CHANG WEI
    • CHI-HSIUNG LEECHIH-CHANG CHANGTA-CHANG WEI
    • H02M3/315
    • H02M3/33561Y10T307/406
    • A power supply system drives a plurality of loads, and includes a power stage circuit, a pulse width modulation controller, a first isolation transformer, at least two second transformers, and at least two rectifier circuits. The power supply system converts external power signals into first alternating current (AC) power signals, and converts the first AC power signals into second AC power signals. The second transformers either boost or buck the second AC power signals, and each has a primary winding connected to a secondary winding of the first isolation transformer in parallel and a center tap grounded. Each of the rectifier circuits is connected to two ends of a secondary winding of a corresponding one of the second transformers, and rectifies the boosted or bucked second AC power signals to output direct current (DC) power signals to a corresponding one of the plurality of loads.
    • 电源系统驱动多个负载,并且包括功率级电路,脉冲宽度调制控制器,第一隔离变压器,至少两个第二变压器和至少两个整流器电路。 电源系统将外部电力信号转换为第一交流电(AC)电力信号,并将第一交流电力信号转换为第二交流电力信号。 第二变压器升压或降压第二交流电力信号,并且每个变压器具有并联连接到第一隔离变压器的次级绕组的初级绕组和中心抽头接地。 每个整流电路连接到相应一个第二变压器的次级绕组的两端,并对升压或降压的第二AC电力信号进行整流,以将直流(DC)功率信号输出到多个 负载
    • 38. 发明授权
    • Multi-lamp driving circuit
    • 多灯驱动电路
    • US08120271B2
    • 2012-02-21
    • US12603661
    • 2009-10-22
    • Chi-Hsiung LeeYu-Hsiao ChaoHung-Yi Chen
    • Chi-Hsiung LeeYu-Hsiao ChaoHung-Yi Chen
    • H05B41/24
    • H05B41/282Y02B20/183
    • A multi-lamp driving circuit for driving a plurality of lamp groups includes an inversion circuit configured to drive the plurality of lamp groups and a current balance circuit electrically connected between the inversion circuit and the plurality of lamp groups. The current balance circuit includes a plurality of transformers, each including a first magnetic loop composed of a first primary winding and a first secondary winding and a second magnetic loop composed of a second primary winding and a second secondary winding. Numbers of turns of the second primary winding and the second secondary winding of each of the plurality of transformers are equivalent, and numbers of turns of the first primary winding and the first secondary winding of each of the plurality of transformers are equivalent.
    • 用于驱动多个灯组的多灯驱动电路包括:被配置为驱动多个灯组的反相电路和电连接在反转电路和多个灯组之间的电流平衡电路。 电流平衡电路包括多个变压器,每个变压器包括由第一初级绕组和第一次级绕组组成的第一磁环和由第二初级绕组和第二次级绕组组成的第二磁路。 多个变压器中的每一个的第二初级绕组和第二次级绕组的匝数相等,并且多个变压器中的每一个的第一初级绕组和第一次级绕组的匝数相等。