A METHOD OF KEEPING LIGHT IN LIGHTING PANEL WITH A BROKEN LED

摘要

PURPOSE: A method for maintaining light is provided to maintain the lighting state of LEDs by maintaining the flow of current. CONSTITUTION: Several LEDs(101) are serially connected to each other. A Zener diode(102) is serially connected to several LEDs in a reverse direction. The zener voltage of the Zener diode is higher than the forward voltage of the LED. A voltage applied to both sides of the Zener diode is higher than the Zener voltage. The current flow(103) of normal state passes through LEDs which are serially connected.