The microcomputer runaway switch is a whole. Its appearance and performance are constantly improving, but its function has not changed. It has been improved on the basis of previous functions. Regardless of the technical development of the microcomputer time-space switch, the ordinary AC microcomputer time-controlled switch still has an important position.

The coil of the air-type electromagnetic microcomputer time control switch is generally powered by AC power. After the microcomputer time control switch is energized, there will usually be a noise, which is also the characteristic of the electromagnetic microcomputer time control switch.

After the 1980s, the silence and node of the microcomputer time-controlled switch electromagnet is to reduce the voltage of the AC power supply with a transformer, and then turn it into a DC power supply through an internal rectifier, but this complex control mode is not very common.

Vacuum microcomputer time and space switch, vacuum microcomputer time control switch is a microcomputer time control switch with vacuum degaussing chamber for contact system.

Semiconductor microcomputer time control switch: The semiconductor microcomputer time control switch is a microcomputer time control switch that completes current operation by changing the conduction state and short circuit state of the circuit circuit.

Permanent-magnet microcomputer time-controlled switch: based on the principle that magnetic electrodes repel each other and attract each other, a low-power computer time-controlled switch is formed by replacing the traditional electromagnet drive with a permanent magnet drive mechanism.