Several kinds of relay
1. Tongue spring relay: a relay that opens, closes or converts the line with tongue spring action that is sealed in the tube and has the dual role of electric shock reed and arbit magnetic circuit
2. High-frequency relay: It is used to switch high-frequency and RF lines and has the minimum loss relay.
3. Polarization relay: a relay that operates under the comprehensive action of the magnetic field generated by the polarized magnetic field and the control current through the control coil. The direction of action of the relay depends on the direction of the current flowing through the control coil.
4. Electromagnetic relay: It is an electrical relay that works by the suction generated by the circuit in the input circuit between the ferromagnetic core and the armature.
5, time relay: when adding or removing the input signal, the output part needs to delay or limit to the specified time to close or disconnect its controlled line relay.
6, solid relay: refers to the electronic components to perform its function without mechanical motion components, input and output isolation of a relay.
