Bypass protection circuit and light emitting diode driving device using the same
    1.
    发明授权
    Bypass protection circuit and light emitting diode driving device using the same 失效
    旁路保护电路和使用其的发光二极管驱动装置

    公开(公告)号:US08283870B2

    公开(公告)日:2012-10-09

    申请号:US12702226

    申请日:2010-02-08

    IPC分类号: H05B37/00

    摘要: A bypass protection circuit connected to a light emitting diode (LED) group in parallel, comprises a switch circuit and a capacitor. The switch circuit comprises a plurality of switch components, an abnormal detection module and a switch control module. The abnormal detection module detects voltage of the LEDs respectively, and determines which one is broken and outputs an abnormal signal. The switch control module controls a switch component connected to the broken LED in parallel on/off according to the abnormal signal. The capacitor is charged by driving signals of the LEDs when the LEDs are operated according to a normal working mode or a first status of a burst dimming mode, and is discharged to maintain an operating power of the switch circuit when the LEDs are operated according to a second status of the burst dimming mode.

    摘要翻译: 并联连接到发光二极管(LED)组的旁路保护电路包括开关电路和电容器。 开关电路包括多个开关元件,异常检测模块和开关控制模块。 异常检测模块分别检测LED的电压,并确定哪个LED被断开并输出异常信号。 开关控制模块根据异常信号并联开/关控制断开的LED连接的开关元件。 当LED根据正常工作模式或突发调光模式的第一状态操作时,通过驱动LED的信号来对电容器进行充电,并且当LED根据触发器操作时,放电以保持开关电路的工作电源 突发调光模式的第二个状态。

    Fault detection circuit
    2.
    发明授权
    Fault detection circuit 失效
    故障检测电路

    公开(公告)号:US07969157B2

    公开(公告)日:2011-06-28

    申请号:US12477129

    申请日:2009-06-03

    IPC分类号: G01R31/28 G01R31/00 H01H31/02

    CPC分类号: G01R31/42 G01R15/183

    摘要: A fault detection circuit connects to and determines the occurrence of failure in an inverter circuit. The inverter circuit comprises three outputs to connect three groups of lamps respectively, and the fault detection circuit comprises a magnetic unit and a signal detection unit. The magnetic unit comprises first, second and third flux generating windings electrically connected to the three outputs of the inverter circuit, and a flux detection winding. If no fault occurs on the outputs of the inverter circuit, total flux generated by the flux generating windings is cancelled out. As long as any fault occurs on the outputs of the inverter circuit, flux generated by the flux generating windings cannot be canceled out, and the flux detection winding is electromagnetically coupled accordingly and driven by the generated flux to output a coupling signal, based on which the signal detection unit generates an alert signal accordingly.

    摘要翻译: 故障检测电路连接并确定逆变器电路中的故障的发生。 逆变器电路包括三个输出,分别连接三组灯,故障检测电路包括磁单元和信号检测单元。 磁性单元包括电连接到逆变器电路的三个输出的第一,第二和第三通量产生绕组以及磁通检测绕组。 如果逆变器电路的输出没有发生故障,则消除由磁通发生绕组产生的总通量。 只要在逆变器电路的输出上发生任何故障,则不能消除由磁通发生绕组产生的磁通,并且磁通检测绕组被相应地电磁耦合并由所产生的磁通驱动以输出耦合信号,基于该耦合信号 信号检测单元相应地生成报警信号。

    System for driving a plurality of lamps
    4.
    发明授权
    System for driving a plurality of lamps 失效
    用于驱动多个灯的系统

    公开(公告)号:US07830099B2

    公开(公告)日:2010-11-09

    申请号:US12011886

    申请日:2008-01-30

    IPC分类号: G05F1/00

    CPC分类号: H05B41/2855 G02F1/133604

    摘要: A system for driving a plurality of lamps comprises a lamp module, an inverter circuit providing currents to the lamp module, an interface for conveying the currents, a splitter, a balance unit, and a fault detecting circuit. The splitter receives the currents provided by the inverter circuit through the interface and distributing the currents to the plurality of lamps. The balance unit balances the currents provided to the plurality of lamps in the lamp module. The fault detecting circuit detects and reports a condition of at least one of the lamps by detecting signals generated from the inverter circuit. The fault detecting circuit receives the signal from a point in the system, such that the fault detecting circuit can detects the signals before the signal undergoes the distributing by the splitter.

    摘要翻译: 用于驱动多个灯的系统包括灯模块,向灯模块提供电流的逆变器电路,用于传送电流的接口,分路器,平衡单元和故障检测电路。 分路器通过接口接收由逆变器电路提供的电流,并将电流分配给多个灯。 平衡单元平衡灯模块中提供给多个灯的电流。 故障检测电路通过检测从逆变器电路产生的信号来检测和报告至少一个灯的状态。 故障检测电路从系统中的点接收信号,使得故障检测电路可以在信号经过分路器分配之前检测信号。

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

    公开(公告)号:US20080129300A1

    公开(公告)日:2008-06-05

    申请号:US12011886

    申请日:2008-01-30

    IPC分类号: G01R31/24 H05B37/00

    CPC分类号: H05B41/2855 G02F1/133604

    摘要: A system for driving a plurality of lamps comprises a lamp module, an inverter circuit providing currents to the lamp module, an interface for conveying the currents, a splitter, a balance unit, and a fault detecting circuit. The splitter receives the currents provided by the inverter circuit through the interface and distributing the currents to the plurality of lamps. The balance unit balances the currents provided to the plurality of lamps in the lamp module. The fault detecting circuit detects and reports a condition of at least one of the lamps by detecting signals generated from the inverter circuit. The fault detecting circuit receives the signal from a point in the system, such that the fault detecting circuit can detects the signals before the signal undergoes the distributing by the splitter.

    摘要翻译: 用于驱动多个灯的系统包括灯模块,向灯模块提供电流的逆变器电路,用于传送电流的接口,分路器,平衡单元和故障检测电路。 分路器通过接口接收由逆变器电路提供的电流,并将电流分配给多个灯。 平衡单元平衡灯模块中提供给多个灯的电流。 故障检测电路通过检测从逆变器电路产生的信号来检测和报告至少一个灯的状态。 故障检测电路从系统中的点接收信号,使得故障检测电路可以在信号经过分路器分配之前检测信号。

    SYSTEM FOR DRIVING A PLURALITY OF LAMPS AND FAULT DETECTING CIRCUIT THEREOF
    7.
    发明申请
    SYSTEM FOR DRIVING A PLURALITY OF LAMPS AND FAULT DETECTING CIRCUIT THEREOF 失效
    用于驱动大量光束和故障检测电路的系统

    公开(公告)号:US20070115001A1

    公开(公告)日:2007-05-24

    申请号:US11308745

    申请日:2006-04-28

    IPC分类号: G01R31/00

    CPC分类号: H05B41/2855

    摘要: A system for driving a plurality of lamps includes an inverter circuit (20) and a fault detecting circuit (30). The inverter circuit includes a plurality of outputs divided into a first output part and a second output part. The fault detecting circuit is used for detecting whether one or more of the plurality of outputs of the inverter circuit is faulty, and includes a magnetic element circuit (300) and a signal detecting circuit (310). The magnetic element circuit is used for generating an induction signal according to flux changes of the magnetic element circuit when one of the plurality of outputs is faulty. The signal detecting circuit is used for generating a fault signal according to the induction signal.

    摘要翻译: 用于驱动多个灯的系统包括逆变器电路(20)和故障检测电路(30)。 逆变器电路包括被分成第一输出部分和第二输出部分的多个输出。 故障检测电路用于检测逆变器电路的多个输出中的一个或多个是否有故障,并且包括磁性元件电路(300)和信号检测电路(310)。 当多个输出中的一个输出有故障时,磁元件电路用于根据磁性元件电路的磁通变化产生感应信号。 信号检测电路用于根据感应信号产生故障信号。

    Power supply device with low standby power consumption
    8.
    发明授权
    Power supply device with low standby power consumption 失效
    电源设备待机功耗低

    公开(公告)号:US08242628B2

    公开(公告)日:2012-08-14

    申请号:US12541669

    申请日:2009-08-14

    IPC分类号: H02J3/00 H02J3/22

    摘要: A power device transforms input power into power for output, and includes an input unit, a power factor unit, a first electronic switch, an output unit, and a control signal port. The power factor unit includes a power factor correction circuit and a first detection circuit connected to an output end of the power factor unit and the power factor correction circuit. The first electronic switch is connected to the first detection circuit, and is under control of the control signal port.

    摘要翻译: 功率器件将输入功率变换为输出功率,并且包括输入单元,功率因数单元,第一电子开关,输出单元和控制信号端口。 功率因数单元包括功率因数校正电路和连接到功率因数单元和功率因数校正电路的输出端的第一检测电路。 第一个电子开关连接到第一个检测电路,并在控制信号端口的控制下。

    Power supply device with low standby power consumption
    9.
    发明授权
    Power supply device with low standby power consumption 失效
    电源设备待机功耗低

    公开(公告)号:US08247922B2

    公开(公告)日:2012-08-21

    申请号:US12538258

    申请日:2009-08-10

    IPC分类号: H02J3/00 H02M3/335

    摘要: A power device transforms input power into power for output, and includes an input unit, a power factor unit, an output unit, a power saving unit, and a control signal port. The power saving unit includes a first electronic switch, a first diode and a single-direction switch. The first electronic switch is connected between the input unit and the power factor unit. An anode of the first diode is connected to the input unit, and a cathode of the first diode is connected to the output unit. The single-direction switch is connected to the power factor unit and the output unit to block current from the output unit to the power factor unit. The control signal port controls an on/off state of the first electronic switch.

    摘要翻译: 功率器件将输入功率变换为输出功率,并且包括输入单元,功率因数单元,输出单元,功率节省单元和控制信号端口。 省电单元包括第一电子开关,第一二极管和单向开关。 第一个电子开关连接在输入单元和功率因数单元之间。 第一二极管的阳极连接到输入单元,第一二极管的阴极连接到输出单元。 单向开关连接到功率因数单元和输出单元,以阻断从输出单元到功率因数单元的电流。 控制信号端口控制第一电子开关的开/关状态。

    System for driving a plurality of lamps and fault detecting circuit thereof
    10.
    发明授权
    System for driving a plurality of lamps and fault detecting circuit thereof 失效
    用于驱动多个灯的系统及其故障检测电路

    公开(公告)号:US07362103B2

    公开(公告)日:2008-04-22

    申请号:US11308745

    申请日:2006-04-28

    IPC分类号: G01R31/00 G01R33/02

    CPC分类号: H05B41/2855

    摘要: A system for driving a plurality of lamps includes an inverter circuit (20) and a fault detecting circuit (30). The inverter circuit includes a plurality of outputs divided into a first output part and a second output part. The fault detecting circuit is used for detecting whether one or more of the plurality of outputs of the inverter circuit is faulty, and includes a magnetic element circuit (300) and a signal detecting circuit (310). The magnetic element circuit is used for generating an induction signal according to flux changes of the magnetic element circuit when one of the plurality of outputs is faulty. The signal detecting circuit is used for generating a fault signal according to the induction signal.

    摘要翻译: 用于驱动多个灯的系统包括逆变器电路(20)和故障检测电路(30)。 逆变器电路包括被分成第一输出部分和第二输出部分的多个输出。 故障检测电路用于检测逆变器电路的多个输出中的一个或多个是否有故障,并且包括磁性元件电路(300)和信号检测电路(310)。 当多个输出中的一个输出有故障时,磁元件电路用于根据磁性元件电路的磁通变化产生感应信号。 信号检测电路用于根据感应信号产生故障信号。