LIGHTING CIRCUIT FOR SWITCH WITH DISPLAY

摘要

PROBLEM TO BE SOLVED: To prevent a light-emitting diode for display from incorrect lighting even when a current, making the light emitting diode for display incorrectly light, is flowed through the lighting circuit for switch with display.

SOLUTION: The power supply from an AC power source AC to the LED 45 (light-emitting diode for display) of the lighting circuit for switch with display is turned on and off by the operation of a switch 2 inserted between the AC power source AC and the load L. A capacitor C1 as a bypass element which forms a route for flowing electric current to light incorrectly the LED 45 as a separate route from the LED is connected to the LED in parallel. Since the electric current causing incorrect lighting of the LED 45 flows in the separate route from the LED by passing through the capacitor C1, incorrect lighting of the LED 45 is prevented.

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