Driving circuit and device for vehicle led indicator light

A driving circuit for vehicle LED indicator light, comprising:

• a main control module, a CAN decoding module, an interface module, a power supply module, and an LED light driving module;
• the interface module is connected to a vehicle power supply, and the power supply module is connected to the interface module, the main control module, the CAN decoding module, and the LED driving module to provide power supply;
• the CAN decoding module is connected to a vehicle CAN bus through the interface module and is configured to receive a vehicle state signal transmitted on the vehicle CAN bus;
• the main control module is connected to the CAN decoding module and is configured to generate a LED driving signal based on the vehicle state signal and transmit it to the LED light driving module;
• the LED light driving module is connected to the LED indicator light through the interface module and is configured to control the LED indicator light to turn on according to the LED driving signal;
• the power supply module comprises independent first voltage reduction module, second voltage reduction module, and third voltage reduction module;
• the first voltage reduction module, second voltage reduction module, and third voltage reduction module are all connected to the interface module to obtain a power supply voltage of the vehicle power supply;
• the first voltage reduction module is connected to the CAN decoding module to convert the power supply voltage into a first working voltage of the CAN decoding module;
• the second voltage reduction module is connected to the main control module to convert the power supply voltage into a second working voltage of the main control module;
• the third voltage reduction module is connected to the LED indicator light to convert the power supply voltage into a third working voltage of the LED indicator light.