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    • 5. 发明申请
    • DRIVING DEVICE FOR LED MODULE
    • LED模组驱动装置
    • US20120146515A1
    • 2012-06-14
    • US12962657
    • 2010-12-08
    • Chao-Hsuan ChuangHung-Che ChouSheng-Chieh WuPao-Chuan Lin
    • Chao-Hsuan ChuangHung-Che ChouSheng-Chieh WuPao-Chuan Lin
    • H05B37/03
    • H05B33/0815Y02B20/346
    • 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.
    • 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。
    • 10. 发明申请
    • POWER CONVERSION APPARATUS
    • 功率转换装置
    • US20140029310A1
    • 2014-01-30
    • US13559611
    • 2012-07-27
    • Hung-Che ChouPao-Chuan Lin
    • Hung-Che ChouPao-Chuan Lin
    • H02M3/335
    • H02M3/33507H02M2001/327
    • 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.
    • 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。