Light emitting diode driving system
    1.
    发明授权
    Light emitting diode driving system 失效
    发光二极管驱动系统

    公开(公告)号:US08446106B2

    公开(公告)日:2013-05-21

    申请号:US13165774

    申请日:2011-06-21

    IPC分类号: H05B41/36 H05B37/02

    摘要: A light emitting diode (LED) driving system comprises a plurality of current limitation circuits and a plurality of over-voltage protection circuits to driving a plurality of LED strings. Each of the current limitation circuits comprises a first switch comprising a control pole receiving a reference voltage, a first pole correspondingly connected to a LED string, and a second pole connected to the ground via a first resistor and a second switch comprising a control pole connected to the second pole of the first switch via a second resistor, a first pole receiving the reference voltage, and a second pole grounded. Each of the over-voltage protection circuits comprises a zener diode, a third switch and a first capacitor.

    摘要翻译: 发光二极管(LED)驱动系统包括多个电流限制电路和多个过电压保护电路以驱动多个LED串。 每个电流限制电路包括第一开关,其包括接收参考电压的控制极,相应地连接到LED串的第一极和经由第一电阻连接到地的第二极和包括连接到控制极的控制极的第二开关 经由第二电阻到第一开关的第二极,接收参考电压的第一极和接地的第二极。 每个过电压保护电路包括齐纳二极管,第三开关和第一电容器。

    Low cost high efficiency high power solar power conversion system circuit and solar power supply system
    2.
    发明授权
    Low cost high efficiency high power solar power conversion system circuit and solar power supply system 失效
    低成本高效率大功率太阳能转换电路和太阳能供电系统

    公开(公告)号:US08335090B2

    公开(公告)日:2012-12-18

    申请号:US12649558

    申请日:2009-12-30

    IPC分类号: H02M3/335

    摘要: A solar power supply system includes at least one solar power conversion circuit and an inverter circuit. Each solar power conversion circuit comprises a solar module and a direct current (DC) module. The solar module converts the solar power into the DC signals. The DC module with two-stage conversion comprises a DC transformer circuit and a maximum power point tracking circuit, to boost the DC signals and adjust output power of the solar module to a maximum value. The inverter circuit converts the boosted DC signals output from the solar power conversion circuits into AC signals and combines the AC signals into the AC utility network.

    摘要翻译: 太阳能供电系统包括至少一个太阳能转换电路和逆变器电路。 每个太阳能转换电路包括太阳能模块和直流(DC)模块。 太阳能模块将太阳能转换为直流信号。 具有两级转换的直流模块包括直流变压器电路和最大功率点跟踪电路,用于升压直流信号并将太阳能模块的输出功率调整到最大值。 逆变器电路将从太阳能转换电路输出的升压直流信号转换为交流信号,并将交流信号组合到交流电力网络中。

    IONIC THERMAL DISSIPATION DEVICE
    3.
    发明申请
    IONIC THERMAL DISSIPATION DEVICE 失效
    离子热释放装置

    公开(公告)号:US20110308769A1

    公开(公告)日:2011-12-22

    申请号:US12869776

    申请日:2010-08-27

    IPC分类号: F28F13/16 H02M7/00 F28D15/00

    CPC分类号: H02M3/33561 H02M3/33569

    摘要: An ionic thermal dissipation device includes an ionic wind generation system and a power system. The power system first converts external direct current (DC) power signals into first alternating current (AC) power signals, and boosts, increases voltage, and rectifies the first AC power signals to generate high voltage DC power signals to drive the ionic wind generation system. The power system also detects current signals generated by ion excitation of the ionic wind generation system and voltage signals of the high voltage DC power signals, and regulates the high voltage DC power signals and time of driving the ionic wind generation system according to a first PWM signal and a first analog signal from an electronic device and the detected current signals and voltage signals.

    摘要翻译: 离子散热装置包括离子风生成系统和电力系统。 电力系统首先将外部直流(DC)功率信号转换为第一交流(AC)功率信号,并升压,增加电压,并对第一交流电源信号进行整流,产生高压直流电源信号,驱动离子风系统 。 电力系统还检测离子风发电系统的离子激发产生的电流信号和高压直流电力信号的电压信号,并根据第一个PWM调节高压直流电力信号和驱动离子风力发电系统的时间 信号和来自电子设备的第一模拟信号和检测到的电流信号和电压信号。

    BACKLIGHT MODULE
    4.
    发明申请
    BACKLIGHT MODULE 审中-公开
    背光模组

    公开(公告)号:US20090315472A1

    公开(公告)日:2009-12-24

    申请号:US12417600

    申请日:2009-04-02

    IPC分类号: H05B41/16

    CPC分类号: H05B41/282

    摘要: A backlight module positioned on a printed circuit board (PCB) includes a power control circuit, a transformer, and a voltage detection component. The power control circuit outputs power signals. The transformer has a primary winding and at least one secondary winding. The primary winding is connected to the power control circuit and receives the power signals. The voltage detection component is positioned on a high voltage terminal of the secondary winding of the transformer, detecting voltage variations in the high voltage terminal of the secondary winding of the transformer, and outputting the detected voltage variation to the power control circuit. The power control circuit adjusts the output power signals according to the detected voltage variation.

    摘要翻译: 位于印刷电路板(PCB)上的背光模块包括功率控制电路,变压器和电压检测部件。 功率控制电路输出功率信号。 变压器具有初级绕组和至少一个次级绕组。 初级绕组连接到电源控制电路并接收电源信号。 电压检测部件位于变压器的次级绕组的高电压端子上,检测变压器的次级绕组的高电压端子的电压变化,并将检测到的电压变化输出到功率控制电路。 功率控制电路根据检测到的电压变化来调整输出功率信号。

    System for driving plural lamps
    5.
    发明申请
    System for driving plural lamps 失效
    用于驱动多个灯的系统

    公开(公告)号:US20060145637A1

    公开(公告)日:2006-07-06

    申请号:US11314050

    申请日:2005-12-20

    IPC分类号: H05B39/00

    摘要: A system for driving a lamp module (13) includes a converter (11), a driving circuit (12), and a pulse width modulation (PWM) controller (14). The lamp module includes a plurality of lamps. The converter converts a received voltage to a direct current (DC) voltage. The driving circuit converts the DC voltage to an alternating current (AC) voltage. The PWM controller is connected between the converter and the lamp module, for regulating the DC voltages outputted from the converter according to current flowing through the lamps of the lamp module. In one embodiment, the system includes a bus inverter controller. The bus inverter controller is connected between the driving circuit and the lamp module, for regulating a working frequency thereof and controlling the AC voltage outputted from the driving circuit when the lamps are turned on. The system has a reduced number of PWM controllers and a relatively low cost.

    摘要翻译: 用于驱动灯模块(13)的系统包括转换器(11),驱动电路(12)和脉宽调制(PWM)控制器(14)。 灯模块包括多个灯。 转换器将接收的电压转换为直流(DC)电压。 驱动电路将DC电压转换成交流(AC)电压。 PWM控制器连接在转换器和灯模块之间,用于根据流经灯模块灯的电流来调节转换器输出的直流电压。 在一个实施例中,该系统包括总线逆变器控制器。 总线逆变器控制器连接在驱动电路和灯模块之间,用于调节其工作频率并控制当灯打开时从驱动电路输出的AC电压。 该系统的PWM控制器数量减少,成本相对较低。

    MULTI-STAGE ION AIRFLOW GENERATING DEVICE
    6.
    发明申请
    MULTI-STAGE ION AIRFLOW GENERATING DEVICE 失效
    多阶段气流发生装置

    公开(公告)号:US20120049083A1

    公开(公告)日:2012-03-01

    申请号:US12906288

    申请日:2010-10-18

    IPC分类号: H01J27/00

    CPC分类号: H01T23/00 H01T19/04

    摘要: An ion airflow generating device includes a number of generator stages, each of which includes a number of generators. Each generator includes a needle-shaped emitter and a ring-shaped receiver. The receivers in the same stage are arranged in an array. Each receiver defines a groove in an outer circumferential surface thereof along a direction parallel to the central axis thereof. Each two adjacent receivers in a former generator stage connect with each other, and the grooves thereof cooperatively define a hole for holding an emitter in a next generator stage. The receivers in the next generator stage symmetrically offset from the receivers in the former generator stage such that each emitter aligns to the center of a corresponding receiver.

    摘要翻译: 离子气流产生装置包括多个发生器级,每个发电机级包括多个发电机。 每个发生器包括针形发射器和环形接收器。 相同阶段的接收器被排列成阵列。 每个接收器在其外圆周表面中沿着平行于其中心轴线的方向限定凹槽。 前一发电机级中的每两个相邻的接收器彼此连接,并且其凹槽协作地限定用于在下一发电机级中保持发射极的孔。 下一个发电机级中的接收器对称地偏离前一发电机级中的接收器,使得每个发射器对准相应接收器的中心。

    PROTECTION CIRCUIT AND DISCHARGE LAMP DRIVING DEVICE EMPLOYING THE SAME
    7.
    发明申请
    PROTECTION CIRCUIT AND DISCHARGE LAMP DRIVING DEVICE EMPLOYING THE SAME 失效
    使用其的保护电路和放电灯驱动装置

    公开(公告)号:US20100019694A1

    公开(公告)日:2010-01-28

    申请号:US12277228

    申请日:2008-11-24

    IPC分类号: H05B41/36

    CPC分类号: H05B41/2828

    摘要: 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.

    摘要翻译: 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。

    MULTI-LAMP DRIVING SYSTEM
    8.
    发明申请
    MULTI-LAMP DRIVING SYSTEM 失效
    多灯驱动系统

    公开(公告)号:US20120256557A1

    公开(公告)日:2012-10-11

    申请号:US13167739

    申请日:2011-06-24

    IPC分类号: H05B41/16

    摘要: A multi-lamp driving system includes a power stage circuit, a pulse width modulation (PWM) controller, a plurality of transformer circuits, and an abnormal detection circuit. Each of the transformer circuits includes a first primary winding and a second primary winding connected in series and a first secondary winding and a second secondary winding respectively outputting AC power signals to drive at least one lamp. The abnormal detection circuit is connected to a junction of the first primary winding and the second primary winding of each of the transformer circuits, and determines if voltages of the junction of the first primary winding and the second primary winding of each of the transformer circuits are different to determine if the at least two lamps are normal. The abnormal detection circuit further generate control signals to control the PWM controller upon the condition that one of the at least two lamps are abnormal.

    摘要翻译: 多灯驱动系统包括功率级电路,脉宽调制(PWM)控制器,多个变压器电路和异常检测电路。 每个变压器电路包括串联连接的第一初级绕组和第二初级绕组,以及分别输出AC功率信号以驱动至少一个灯的第一次级绕组和第二次级绕组。 异常检测电路连接到每个变压器电路的第一初级绕组和第二初级绕组的结,并且确定每个变压器电路的第一初级绕组和第二初级绕组的结的电压是否为 不同以确定至少两个灯是否正常。 异常检测电路进一步产生控制信号以在至少两个灯中的一个异常的情况下控制PWM控制器。

    Ionic thermal dissipation device
    9.
    发明授权
    Ionic thermal dissipation device 失效
    离子散热装置

    公开(公告)号:US08248749B2

    公开(公告)日:2012-08-21

    申请号:US12869776

    申请日:2010-08-27

    IPC分类号: H01T23/00

    CPC分类号: H02M3/33561 H02M3/33569

    摘要: An ionic thermal dissipation device includes an ionic wind generation system and a power system. The power system first converts external direct current (DC) power signals into first alternating current (AC) power signals, and boosts, increases voltage, and rectifies the first AC power signals to generate high voltage DC power signals to drive the ionic wind generation system. The power system also detects current signals generated by ion excitation of the ionic wind generation system and voltage signals of the high voltage DC power signals, and regulates the high voltage DC power signals and time of driving the ionic wind generation system according to a first PWM signal and a first analog signal from an electronic device and the detected current signals and voltage signals.

    摘要翻译: 离子散热装置包括离子风生成系统和电力系统。 电力系统首先将外部直流(DC)功率信号转换为第一交流(AC)功率信号,并升压,增加电压,并对第一交流电源信号进行整流,产生高压直流电源信号,驱动离子风系统 。 电力系统还检测离子风发电系统的离子激发产生的电流信号和高压直流电力信号的电压信号,并根据第一个PWM调节高压直流电力信号和驱动离子风力发电系统的时间 信号和来自电子设备的第一模拟信号和检测到的电流信号和电压信号。

    Protection circuit and discharge lamp driving device employing the same
    10.
    发明授权
    Protection circuit and discharge lamp driving device employing the same 失效
    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

    公开(公告)号:US07986106B2

    公开(公告)日:2011-07-26

    申请号:US12277228

    申请日:2008-11-24

    IPC分类号: H05B41/36

    CPC分类号: H05B41/2828

    摘要: 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.

    摘要翻译: 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。