To understand the difference between electronic relays and electromagnetic relays, we must first understand them. Knowing exactly where they are used makes it easier to judge.

Homepage Let me know about electronic relays. Its full name is electronic relays. It is an electronic control device. It has a control system (also known as an input loop) and a controlled system (also known as an output loop). It is commonly used in automatic control. In the circuit, it is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of conversion circuit, safety protection, automatic adjustment and so on in the circuit.

Let me focus on the electromagnetic relay. The electromagnetic relay is also an electronic control device. It has a control system (also known as an input loop) and a controlled system (also known as an output loop). It is commonly used in automatic control circuits. It is also an "automatic switch" that uses a smaller current and a lower voltage to control a larger current and a higher voltage. Therefore, it plays the role of conversion circuit, safety protection, automatic adjustment and so on in the circuit. By recognizing these two relays, it is not difficult to see that their functions and methods are the same. So what are the differences between them?

Electronic relays use electronic switches (such as transistors, triacs) as the main switching element. This allows the relay to control larger circuits. Other types of electronic relays (transmitting by means of optics, frequency modulation, or capacitive effects, etc.) include optocouplers (on the main side, light-emitting diodes transmit the light signal, while phototransistors act as receivers and control switching elements), thermoelectric relays ( The main input energy heats the bimetal parts, mechanically drives the contacts) and piezoelectric relays (piezoelectric effect mechanically operates the contacts). Electromagnetic relays are widely used in aviation, aerospace, ships, home appliances and other fields. They mainly complete functions such as signal transmission, execution control, and system power distribution. They are one of the key electronic components in each system.

We can classify electromagnetic relays according to the nature of the intermediate signal between the main terminal and the switching element. The magnetic field generated by the input signal acts on the mechanical contacts. Examples include standard yoke type relays and reed relays. This standard yoke type relay consists of a coil, armature and one or more sets of contacts wound on a soft iron core. When current is applied, the coil generates an electromagnetic field and the armature is activated. The armature is the moving part of the relay. It is hinged on a yoke, mechanically connected to the moving contacts, opens and closes the contacts, and has an additional spring that returns it to its original position. The armature is held in place by a spring, so when the relay is de-energized, there is a gap in the magnetic circuit. While all versions offer the same basic operating concept, electrical relays use slightly different technologies and come in a wide variety of sizes and types.

The above analysis of the difference between the two relays by Fanhua, if you have any questions, please call our consulting service hotline: +86-573-83872666