| 摘要 |
<p>A stabilization device for an LED light, composed of an AC filter and an AC/DC converter, comprises: a temperature stabilizer including a temperature sensor (TP1) which is provided between the AC filter and the AC/DC converter, is connected to one input line (ACIN1) of a power source in series, and has a bimetallic temperature sensor (β) provided between the one input line (ACIN1) of the power source and a condenser (C1) provided in parallel; a plurality of condensers (C1, C2) which is connected to the one input line (ACIN1) of the power source in parallel; and a resistor (R1) which is connected to the one input line (ACIN1) of the power source in series and is connected to the condensers (C1, C2) in parallel. When an external or internal temperature of a bulb for the LED light or the device for the LED light rises, a current of the condenser (C1) is blocked so as to reduce a current of a bridge rectifier circuit (DMI). When inrush instantaneous overcurrent is inputted, the current of the condenser (C1) is blocked so as to protect a circuit at the back of the AC/DC converter. The bimetallic temperature sensor appropriately supplements a delay type fuse (FUSE1) which cannot respond immediately to an overcurrent. Power off and back are possible in case of fire caused by abnormal power, and automatic dimming and return are possible caused by external fire and high temperature.</p> |
