Relay is widely used, in the switching power supply and other scenarios, but why to be used in the switching power supply, Juying electronics summary should be the following reasons.
1. High reliability
1. Strong impact resistance: the relay due to its structural characteristics and materials used, it has a strong impact resistance, even when the power supply receives a strong external impact, the relay can work normally, will not be affected, so as to ensure the stability and reliability of the switching power supply.
2. Long life: the relay due to the advantages of its structure and material, its life is much longer than the general electronic components, compared with the general electronic components, the service life of the relay can reach more than hundreds of thousands of times, so as to ensure the reliability of the switching power supply.
3. Low power consumption: the relay has low power consumption, which means that the use of the relay is less energy, so it can effectively reduce the energy consumption of the switching power supply, but also can ensure the reliability of the switching power supply.
2. Control the power supply output
1. Safety: The relay consists of a small electromagnetic coil and a switch, which can support high voltage power supply, but only a small amount of current flows through the coil, so it can protect the user from high voltage danger, greatly improving the safety.
2. Tolerance: the relay can withstand the number of switches, and has high reliability, is very suitable for frequent repeated switching.
3. Reliability: the relay can extend the service life of the power switch, and can better resist electromagnetic interference, not easy to be affected by external electromagnetic interference.
4. Control accuracy: the relay can accurately control the output of the power supply according to the needs of the user, so as to meet the user's demand for particularly high precision.
3. telecontrol
1. Realize long-distance control: the relay can achieve long-distance control, and the user can turn on or off to switch the power supply by remotely controlling the relay, instead of being close to the switch power supply, which greatly facilitates the user's use.
2. No external energy: the relay can be activated through external power supply without additional energy, thus greatly reducing the cost of switching power supply.
3. High precision control: the control accuracy of the relay is very high, which can accurately control the switch power supply to open or turn off, and the user can better control the switch power supply, so that the use of the switch power supply is more safe and reliable.
4. High output voltage
1. Support a high voltage output: due to the special structure of the relay, it can withstand a high output voltage, and can support the switching power supply output voltage at a higher level, to meet the circuit voltage requirements.
2. Improve the reliability of the switching power supply: because the relay can withstand a higher voltage, so it can improve the reliability of the switching power supply, at a higher voltage output, can ensure the stability of the switching power supply.
3. Protection circuit: the relay can be used as a protection device, when the voltage of the switching power supply is too high or too low, the relay can play a protective role to prevent the circuit from being damaged.
5. Small power consumption
1. Small power consumption: the power consumption of the relay refers to the power consumed in the control circuit when the load of the relay is activated. The power consumption of the general relay is between a few milliwatts to tens of watts, compared with the ordinary circuit components, the relay power consumption is much smaller.
2. Control large current: relay can control large current, suitable for control of large capacity switching power supply. For example, a relay can control the current on a kilowatt, while ordinary circuit components can only control a few watts of current.
3. Simple structure: the relay is only composed of a few electronic components, the structure is simple, only need a simple control circuit can realize the control of large current. The general circuit elements need a complex control circuit to realize the control of large current.
Six, simple and easy to operate
1. Operation safety: the relay has good high voltage isolation ability, which can effectively isolate the high voltage power supply and low voltage circuit, so as to protect the circuit and personnel safety on the low voltage side.
2. Reliable operation: the relay can be switched according to the control signal, this switch can achieve automatic control, and very reliable, can work for a long time, will not cause operation errors due to the negligence of people.
3. Flexible operation: the relay can achieve different control effects according to the different control signals, for example, for a switch power supply, can be adjusted according to the different control signals, to adjust the output voltage, so that the operation flexibility is relatively high, and there is no need to replace the circuit, can save the cost of equipment
