LED unit control device

The utility model discloses a LED unit control device for whether a N emitting diode in the control LED unit gives out light, give off light, LED unit control device includes power, filter circuit, vary voltage circuit, voltage stabilizing circuit, switch switching control unit, a N switch element, power, filter circuit, vary voltage circuit and voltage stabilizing circuit are continuous in proper order to the output galvanic current is pressed, and voltage stabilizing circuit's output links to each other with switch switching control unit and LED unit, thinks that switch switching control unit and LED unit provide operating voltage, switch switching control unit's a N output correspondence links to each other with a N switch element, and each switch element still corresponds to be connected between an emitting diode and the earth, switch switching control unit is used for exporting control signal to the switch element that corresponds to switch on or break off this switch element, so that the emitting diode who corresponds circular telegram or outage. Above -mentioned LED unit control device is simple and convenient, and can prolong emitting diode's working life.