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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。
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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。
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