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    • 8. 发明申请
    • HIGH POWER DIRECT DRIVE CIRCUIT
    • 高功率直流驱动电路
    • US20130307417A1
    • 2013-11-21
    • US13473559
    • 2012-05-16
    • Timothy ChenHaiyan Wang
    • Timothy ChenHaiyan Wang
    • H05B37/02
    • H05B33/0809
    • A driver circuit for driving an LED includes a rectifier circuit to receive AC voltage and to convert the AC voltage to DC voltage. The driver circuit further includes a filter circuit for filtering the DC voltage. The driver circuit further includes a detection circuit for determining a change in the filtered DC voltage over a predetermined time interval. The driver circuit further includes a dampening circuit for dampening the filtered DC voltage responsive to the detection circuit determining that the change in filtered DC voltage over the predetermined time interval exceeds a predetermined threshold.
    • 用于驱动LED的驱动器电路包括用于接收AC电压并将AC电压转换为DC电压的整流器电路。 驱动器电路还包括用于对直流电压进行滤波的滤波电路。 驱动器电路还包括用于在预定时间间隔内确定经滤波的DC电压的变化的检测电路。 驱动器电路还包括用于衰减滤波后的DC电压的阻尼电路,该阻尼电路响应于检测电路确定在预定时间间隔内滤波的直流电压的变化超过预定阈值。