| 摘要 |
PURPOSE: An electrostatic force type LED bulb power control device is provided to maximize the total lifetime of an LED bulb by composing a CRD(Current Regulating Diode) and a zener diode power circuit. CONSTITUTION: An AC filter part(1) protects a circuit from the instant overvoltage of DC current applied from a power source or surge current. An AC / DC transforming part(3) transforms AC current applied from the AC filter part into DC current. A current controlling part(4) converts DC current, which is applied at the AC / DC transforming part, into current suitable for an LED light source. A voltage control part(2) inputs the positive current of DC current applied at the current controlling part and the negative current of DC current applied at the AC/DC transforming part before dropping and controlling voltage. The voltage control part stabilizes the voltage. |
