What are the common roles of relays? The number of industries using relays is increasing, so what are the different characteristics of relays in each field? 1. Household appliances: air conditioning relays are mainly used to control shrink machine motors, fan motors and cooling pump motors to perfor
The concept of bridge rectifier and related knowledge The concept of bridge rectifierBridge rectifier is a rectifier tube enclosed in a housing. There are full bridges and half bridges. A full bridge is a connected bridge rectifier circuit with four diodes sealed together. A half bridge is a bridge
Magnetic lock is also called electromagnetic lock. Its design is the same as that of electromagnet. It uses the principle of current to generate magnetism.
Factors of bridge rectifier damage Generally the heat sink is not large enough, the overload inrush current is too high and the heat is not dissipated. 1. Load short circuit, bad insulation. Caused by excessive load current. 2. Frequent starting and stopping of the power supply, if the inductive l
The principle and characteristics of infrared sensor switchInfrared sensor switchThe full name of infrared sensor switch is pyroelectric infrared sensor switch. Any object in nature, as long as the temperature is higher than absolute zero (-273°C), always emits infrared radiation continuously. The h
