Vehicle LED lamp lighting circuit, vehicle LED lamp lighting device, and vehicle LED lamp lighting circuit control method

摘要

The vehicle LED lamp lighting circuit is a vehicle LED lamp lighting circuit that controls lighting of an LED lamp mounted on the vehicle, one end of which is connected to a power supply line to which a power supply voltage is supplied, and the other end is a first. A first resistor connected to the contact of the first and at least one or more first LED elements, one end connected to the reference node and the other end connected to the second contact and the grounded ground line A first state in which the first LED lamp, the reference node, and the first contact are conducted, and a second state in which the reference node and the second contact are conducted are switched. A flooded switch device.