effect
Signal conversion: One control signal can be converted into another or more signals to meet the needs of different control circuits. Such as converting low-level signals to high-level signals, or converting DC signals to AC signals.
Signal amplification: When the input signal is weak, the intermediate relay can amplify it to enhance the driving ability of the signal, so as to better control other devices. For example, in some sensor signal transmission, the weak signal output by the sensor can be amplified and then transmitted to the controller.
Increase the number of contacts: When multiple contacts are required in a control circuit to control different circuits or devices, intermediate relays can be used to increase the number of contacts to meet control requirements.
Isolation protection: It can isolate the control circuit from the controlled circuit to prevent failures in the control circuit from affecting the controlled circuit and improve the safety and reliability of the system. For example, between the high-voltage circuit and the low-voltage control circuit, the intermediate relay can play an isolation role to protect the components and personnel in the low-voltage control circuit.
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relayUsing the principle of electromagnetic induction, the electronic components of the high current circuit are switched on and off by controlling the low current circuit.
effect Signal conversion: One control signal can be converted into another or more signals to meet the needs of different control circuits. Such as converting
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