Abstract: An integrated protector having two pins for controlling a breakover voltage to prevent surge from a lightning strike and static electricity comprises a thyristor with three electrodes, such as an SCR, a transistor for a gate of the thyristor to trigger signals, and a voltage detecting circuit. When static electricity or surge occurs at two ends of the integrated protector and the protected part/device that are arranged in a parallel connection, the integrated protector acquires a proper current to trigger the thyristor via the voltage detecting circuit. Accordingly, the integrated protector provides a route to guide the static electricity or the surge, which protects the part/device that is parallelly connected to the integrated protector.

Abstract: An LED having two pins that handle contingencies of open, static electricity, and surge comprises an LED cell, a thyristor, such as SCR, with three electrodes arranged in series connection to the LED cell, a transistor for a gate of the thyristor to trigger signals, and a voltage detecting circuit. When the LED cell breaks due to open, a proper current is acquired via the voltage detecting circuit so as to trigger the SCR, thereby providing a substitute current route that allows the rest of the serially-connected LED cells to keep lighting. When static electricity or surge occurs at two ends of the LED cells, the SCR provides a route to guide the static electricity or the surge, which protects the LED cells.

Abstract: An integrated circuit providing a function of substituting LED open and a protection against static electricity and surge can be coupled and parallelly connected to an LED. The integrated circuit comprises a thyristor, such as SCR, with three electrodes, a transistor for a gate of the thyristor to trigger signals, and a voltage detecting circuit. When the LED breaks due to open, a proper current is acquired via the voltage detecting circuit so as to trigger the SCR, thereby providing a substitute current route that allows the rest of the serially-connected LEDs to keep lighting. When static electricity or surge occurs at two ends of the LEDs, the integrated circuit provides a route to guide the static electricity or the surge, which protects the LEDs.