DRIVING DEVICE FOR LED MODULE
    1.
    发明申请
    DRIVING DEVICE FOR LED MODULE 有权
    LED模组驱动装置

    公开(公告)号:US20120146515A1

    公开(公告)日:2012-06-14

    申请号:US12962657

    申请日:2010-12-08

    IPC分类号: H05B37/03

    CPC分类号: H05B33/0815 Y02B20/346

    摘要: A driving device for a LED module is provided. The driving device for the LED module includes a voltage converting unit, a LED module voltage detecting unit, and a switching signal generation unit. The voltage converting unit produces a driving voltage to drive the LED module according to a switching signal. The LED module voltage detecting unit divides the driving voltage to produce a comparison voltage. The switching signal generation unit receives the comparison voltage by a fault detection pin and compares a reference voltage and the comparison voltage to enable or disable the switching signal. After the switching signal is disabled, the switching signal generation unit further pulls up a voltage level of the fault detection pin to a logic high level voltage, so as to produce a fault notification signal to let the fault detection pin also have a function for fault notification.

    摘要翻译: 提供了一种用于LED模块的驱动装置。 LED模块的驱动装置包括电压转换单元,LED模块电压检测单元和开关信号生成单元。 电压转换单元根据开关信号产生驱动电压以驱动LED模块。 LED模块电压检测单元分压驱动电压以产生比较电压。 开关信号发生单元通过故障检测引脚接收比较电压,并比较基准电压和比较电压,以使能或禁止开关信号。 开关信号禁止后,开关信号发生单元进一步将故障检测引脚的电压电平升高到逻辑高电平电压,以产生故障通知信号,使故障检测引脚也具有故障功能 通知。

    POWER CONVERSION APPARATUS
    2.
    发明申请
    POWER CONVERSION APPARATUS 有权
    功率转换装置

    公开(公告)号:US20140029310A1

    公开(公告)日:2014-01-30

    申请号:US13559611

    申请日:2012-07-27

    IPC分类号: H02M3/335

    CPC分类号: H02M3/33507 H02M2001/327

    摘要: A power conversion apparatus is disclosed. The power conversion apparatus includes a power transistor, a thermal resistor and a temperature detection circuit. A control terminal of the power transistor receives a control signal. The power transistor converts an input voltage into an output voltage according to the control signal. The thermal resistor has a negative temperature coefficient. The temperature detection circuit generates the control signal and provides a driving current to the control terminal of the power transistor according to the control signal. The temperature detection circuit further generates an over temperature protection signal according to the driving current.

    摘要翻译: 公开了电力转换装置。 功率转换装置包括功率晶体管,热电阻和温度检测电路。 功率晶体管的控制端接收控制信号。 功率晶体管根据控制信号将输入电压转换为输出电压。 热敏电阻具有负温度系数。 温度检测电路产生控制信号,并根据控制信号向功率晶体管的控制端提供驱动电流。 温度检测电路还根据驱动电流产生过温保护信号。

    FLY-BACK POWER CONVERTING APPARATUS
    3.
    发明申请
    FLY-BACK POWER CONVERTING APPARATUS 有权
    飞回功率转换装置

    公开(公告)号:US20140071718A1

    公开(公告)日:2014-03-13

    申请号:US13610874

    申请日:2012-09-12

    IPC分类号: H02M3/335

    CPC分类号: H02M1/32 H02M3/33523

    摘要: A structure of a fly-back power converting apparatus is disclosed. The structure includes a power transistor, a current detector, a pulse width modulation (PWM) signal generator and a current limiter. The power transistor is coupled to an input voltage and receives a PWM signal. The current detector detects a current output from the power transistor and generates a detecting voltage according to the current. The PWM signal generator generates the PWM signal according to a comparing result by comparing the detecting voltage and a standard voltage. The current limiter generates the standard voltage according to a turn-on time of the power transistor.

    摘要翻译: 公开了一种回扫功率转换装置的结构。 该结构包括功率晶体管,电流检测器,脉宽调制(PWM)信号发生器和限流器。 功率晶体管耦合到输入电压并接收PWM信号。 电流检测器检测来自功率晶体管的电流输出,并根据电流产生检测电压。 根据比较结果,PWM信号发生器通过比较检测电压和标准电压来生成PWM信号。 电流限制器根据功率晶体管的导通时间产生标准电压。

    Power conversion apparatus
    4.
    发明授权
    Power conversion apparatus 有权
    电力转换装置

    公开(公告)号:US09118249B2

    公开(公告)日:2015-08-25

    申请号:US13559611

    申请日:2012-07-27

    CPC分类号: H02M3/33507 H02M2001/327

    摘要: A power conversion apparatus is disclosed. The power conversion apparatus includes a power transistor, a thermal resistor and a temperature detection circuit. A control terminal of the power transistor receives a control signal. The power transistor converts an input voltage into an output voltage according to the control signal. The thermal resistor has a negative temperature coefficient. The temperature detection circuit generates the control signal and provides a driving current to the control terminal of the power transistor according to the control signal. The temperature detection circuit further generates an over temperature protection signal according to the driving current.

    摘要翻译: 公开了电力转换装置。 功率转换装置包括功率晶体管,热电阻和温度检测电路。 功率晶体管的控制端子接收控制信号。 功率晶体管根据控制信号将输入电压转换为输出电压。 热敏电阻具有负温度系数。 温度检测电路产生控制信号,并根据控制信号向功率晶体管的控制端提供驱动电流。 温度检测电路还根据驱动电流产生过温保护信号。

    Fly-back power converting apparatus
    5.
    发明授权
    Fly-back power converting apparatus 有权
    反光电力转换装置

    公开(公告)号:US09025346B2

    公开(公告)日:2015-05-05

    申请号:US13610874

    申请日:2012-09-12

    IPC分类号: H02M7/00 H02M3/335 H02M1/32

    CPC分类号: H02M1/32 H02M3/33523

    摘要: A structure of a fly-back power converting apparatus is disclosed. The structure includes a power transistor, a current detector, a pulse width modulation (PWM) signal generator and a current limiter. The power transistor is coupled to an input voltage and receives a PWM signal. The current detector detects a current output from the power transistor and generates a detecting voltage according to the current. The PWM signal generator generates the PWM signal according to a comparing result by comparing the detecting voltage and a standard voltage. The current limiter generates the standard voltage according to a turn-on time of the power transistor.

    摘要翻译: 公开了一种回扫功率转换装置的结构。 该结构包括功率晶体管,电流检测器,脉宽调制(PWM)信号发生器和限流器。 功率晶体管耦合到输入电压并接收PWM信号。 电流检测器检测来自功率晶体管的电流输出,并根据电流产生检测电压。 根据比较结果,PWM信号发生器通过比较检测电压和标准电压来生成PWM信号。 电流限制器根据功率晶体管的导通时间产生标准电压。

    Driving device for LED module
    6.
    发明授权
    Driving device for LED module 有权
    LED模块驱动装置

    公开(公告)号:US08476842B2

    公开(公告)日:2013-07-02

    申请号:US12962657

    申请日:2010-12-08

    IPC分类号: H05B37/02

    CPC分类号: H05B33/0815 Y02B20/346

    摘要: A driving device for a LED module is provided. The driving device for the LED module includes a voltage converting unit, a LED module voltage detecting unit, and a switching signal generation unit. The voltage converting unit produces a driving voltage to drive the LED module according to a switching signal. The LED module voltage detecting unit divides the driving voltage to produce a comparison voltage. The switching signal generation unit receives the comparison voltage by a fault detection pin and compares a reference voltage and the comparison voltage to enable or disable the switching signal. After the switching signal is disabled, the switching signal generation unit further pulls up a voltage level of the fault detection pin to a logic high level voltage, so as to produce a fault notification signal to let the fault detection pin also have a function for fault notification.

    摘要翻译: 提供了一种用于LED模块的驱动装置。 LED模块的驱动装置包括电压转换单元,LED模块电压检测单元和开关信号生成单元。 电压转换单元根据开关信号产生驱动电压以驱动LED模块。 LED模块电压检测单元分压驱动电压以产生比较电压。 开关信号发生单元通过故障检测引脚接收比较电压,并比较基准电压和比较电压,以使能或禁止开关信号。 开关信号禁止后,开关信号发生单元进一步将故障检测引脚的电压电平升高到逻辑高电平电压,以产生故障通知信号,使故障检测引脚也具有故障功能 通知。

    Device for controlling single-phase power conditioner for renewable energy system
    7.
    发明授权
    Device for controlling single-phase power conditioner for renewable energy system 有权
    用于控制可再生能源系统的单相功率调节器的装置

    公开(公告)号:US07714463B2

    公开(公告)日:2010-05-11

    申请号:US11675106

    申请日:2007-02-15

    IPC分类号: H02J3/00

    摘要: A device for controlling a single-phase power conditioner for a renewable energy system is disclosed. The device comprises: a power system, providing alternating current (AC) utility power; a renewable energy system, using a natural resource so as to generate direct current (DC) power; a DC-to-DC converter, accepting the DC power generated by the renewable energy system so as to convert an input DC voltage of the DC power to an output DC voltage at a voltage level different from the DC input voltage; a grid-tied power conditioner, transforming voltage levels of the AC power and DC power; a controller, issuing a control signal for controlling the grid-tied power conditioner; and a load, consuming electricity by way of the grid-tied power conditioner.

    摘要翻译: 公开了一种用于控制可再生能源系统的单相功率调节器的装置。 该装置包括:提供交流(AC)公用电力的电力系统; 一个可再生能源系统,使用自然资源产生直流(DC)电力; 接收由可再生能源系统产生的直流电力,以将直流电力的输入直流电压转换为不同于直流输入电压的电压电平的输出直流电压的DC-DC转换器; 并网功率调节器,转换交流电源和直流电源的电压电平; 控制器,发出用于控制并网功率调节器的控制信号; 和负载,通过并网功率调节器消耗电力。

    Islanding detection and protection method

    公开(公告)号:US20070143044A1

    公开(公告)日:2007-06-21

    申请号:US11435750

    申请日:2006-05-18

    IPC分类号: G06F19/00

    CPC分类号: H02J3/38 H02J2003/388

    摘要: An islanding detection and protection method of a parallel-type power converter is proposed, which performs perturbation to a power system to detect the frequency of the system voltage and the variation of the magnitude of the negative-sequence voltage as the basis for deciding the occurrence of an islanding operation. When the system operates normally, the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage won't be affected by the perturbation. On the other hand, if an islanding operation occurs, this perturbation will cause an apparent drift of the frequency or phase and magnitude of the system voltage and the magnitude of the negative-sequence voltage. Through detection of this apparent drift, the perturbation can be amplified by means of positive feedback to quickly detect the islanding operation phenomenon and trigger the protection mechanism.

    Battery energy balance circuit and battery charging bypass circuit
    10.
    发明申请
    Battery energy balance circuit and battery charging bypass circuit 有权
    电池能量平衡电路和电池充电旁路电路

    公开(公告)号:US20050029987A1

    公开(公告)日:2005-02-10

    申请号:US10718545

    申请日:2003-11-24

    IPC分类号: H02J7/00

    CPC分类号: H02J7/0016

    摘要: A battery energy balance circuit and a battery charging bypass circuit is disclosed for batteries being charged at the same time to be charged equally. When the terminal voltages of the batteries are different, a controllable power device switch in the circuit switches on and off at a high frequency in order to reduce the input current to the batteries with higher terminal voltages and to increase the input current to the batteries with lower terminal voltages, achieving the goal of equal charging. The disclosed energy balance circuit can avoid damages to the batteries as a result of overcharging. When the number of batteries increases, one can expand the system in a modularized way to prevent inconvenience of circuit designs.

    摘要翻译: 公开了同时充电的电池同时充电的电池能量平衡电路和电池充电旁路电路。 当电池的端子电压不同时,电路中的可控功率器件开关以高频率接通和断开,以便降低具有较高端子电压的电池的输入电流并增加对电池的输入电流, 降低端电压,达到同等充电​​的目的。 公开的能量平衡电路可以避免由于过充电而导致的电池损坏。 当电池数量增加时,可以以模块化的方式扩展系统,以防止电路设计的不便。