LIGHT-EMITTING DIODE DRIVER CIRCUIT AND LED LIGHT SOURCE
    1.
    发明公开
    LIGHT-EMITTING DIODE DRIVER CIRCUIT AND LED LIGHT SOURCE 审中-公开
    LEUCHTDIODEN-TREIBERSCHALTUNG UND LED-LICHTQUELLE

    公开(公告)号:EP2660881A4

    公开(公告)日:2017-06-28

    申请号:EP11853617

    申请日:2011-12-27

    摘要: Provided are a light-emitting diode driver circuit and an LED light source which are capable of reliably turning OFF an LED even when an input voltage having a value smaller than a predetermined value is supplied. A light-emitting diode driver circuit (1) for turning ON an LED (2) includes: an inverter (20) which outputs electric power for driving the LED (2); and an inverter control circuit (30) which controls an operation of the inverter (20), and when a DC voltage applied to the inverter control circuit (30) has a value smaller than the predetermined value, the inverter control circuit (30) stops the operation of the inverter (20).

    摘要翻译: 本发明提供一种发光二极管驱动电路以及LED光源,即使供给小于规定值的输入电压,也能够可靠地使LED熄灭。 用于使LED(2)导通的发光二极管驱动电路(1)包括:输出用于驱动LED(2)的电力的逆变器(20); 和逆变器控制电路(30),该逆变器控制电路(30)控制逆变器(20)的操作,并且当施加到逆变器控制电路(30)的DC电压具有小于预定值的值时,逆变器控制电路 逆变器(20)的操作。