What is the function of Auto Universal Relay?

Auto Universal Relay plays a vital role in automotive circuits. The following are the main functions of Auto Universal Relay:

Switching function: The most basic function of a relay is to act as an electrical switch. It can control the on and off of a circuit, so that the switching operation of a high current load (such as a motor, heater, lighting equipment, etc.) no longer needs to be completed directly through a low current control circuit. This can not only protect the components in the control circuit from the impact of large currents, but also improve the safety and reliability of the circuit.

Isolation function: The relay isolates the control circuit from the load circuit, realizing the "soft connection" of the circuit. This isolation effect can reduce electromagnetic interference between systems and improve the stability and anti-interference ability of the system.

Automatic control and remote control: Through relays, automatic control and remote control of circuits can be achieved. For example, in a car, the fuel pump, cooling fan and other equipment can be automatically controlled to turn on and off according to the working status of the engine; the switch of the lights can also be remotely controlled through external devices such as remote controls.

Current amplification: Relays can use smaller currents to control larger currents, which actually plays the role of current amplification. In automotive circuits, since the load current is often large and the current of the control circuit is small, relays are needed to control the load circuit.

Protection and fault diagnosis: Relays can also protect circuits and electrical equipment. When short circuits, overloads and other faults occur in the circuit, the relay can quickly cut off the circuit to prevent the fault from expanding. At the same time, by checking the working status of the relay, it can also help diagnose faults in the circuit.

Simplify circuit design: In automotive circuit design, the use of relays can simplify the circuit structure and improve the maintainability and scalability of the circuit. By connecting and controlling different functional modules through relays, the entire circuit can be made clearer, easier to understand and maintain.

In summary, Auto Universal Relay has multiple functions in automotive circuits, such as switching, isolation, automatic control, current amplification, protection and simplified circuit design. It is one of the indispensable and important components in the automotive electrical system.