Pilot lamp supply circuit and distribution system

The utility model discloses a pilot lamp supply circuit, this pilot lamp supply circuit including the first power input end and the second source input that are used for connecting external power source, be used for right mains voltage that external power source provided carry on output power supply voltage after the rectification rectifier module, be used for right power supply voltage carries out after the steady voltage voltage stabilizing module for the pilot lamp power supply to and be used for preventing the overdue bright current -limiting module of pilot lamp. The utility model also discloses a distribution system, include above -mentioned pilot lamp supply circuit and be the external power source of pilot lamp supply circuit through mains voltage. The utility model discloses it is lower incomparable to fully driving the pilot lamp or because the circuit is in the induced electromotive force environment and exists under the induced electromotive force condition, and power supply voltage or the induced electromotive force who exports the pilot lamp to is cut off to the current -limiting module, avoiding the pilot lamp to twinkle luminously and arouse misjudge and damage at the mains voltage of input to the stability of pilot lamp supply circuit power supply can be improved, the life -span of pilot lamp is prolonged.