Anti interference constant voltage constant current circuit device for energy saving LED lamp
The utility model relates to an anti interference constant voltage constant current circuit device used in the field of energy saving LED lamps. The anti interference constant voltage constant current circuit device comprises a power circuit and a load LED circuit, wherein an LED open circuit protection circuit is arranged in the power circuit; and a three terminal electronic voltage stabilizer is arranged between the power circuit and the load LED circuit. The anti interference constant voltage constant current circuit device can ensure substantially constant operating current of the energy saving LED lamp, ensure the brightness of the LED lamp, prolong the service life of the LED lamp, and reduce the light attenuation.