| 摘要 |
<p>PURPOSE: A LED sensor for real time and emergency is provided to improve the efficiency by automatically turning on the LED at the set-up time. CONSTITUTION: A rectifying unit rectifies the AC power source to the DC power source. The current control unit controls the brightness of the light emitting unit. The cordon input unit supplies emergency power source. The bridge cooperation unit equally divides the power source. The detector senses the normal state or emergency state of the light emitting unit.</p> |
