GN325ALZ

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Solid State Relays

Solid state relays (SSRs) use electronic components as opposed to electromechanical components to provide a signal switching. They are widely used in many applications such as home appliances, automation equipment, medical instrumentation, aerospace, printing machines, electric welding and semiconductor processing. This article introduces the application field and working principle of GN325ALZ.

Application Field

GN325ALZ have been successfully applied in refrigerator, air conditioner, microwave oven, lighting system, range hood, electric fan, food mixer, etc. It can control the reading lamp of the bed, the door light, or the fan powering on to keep the room comfortable. It can also control engines and monitor voltages in large-scale industry and agricultural equipment, providing reliable connection between the main circuit and the control system.

Working Principle

GN325ALZ is a single-phase AC solid state relay. AC solid state relays utilise an input electronic circuit to control an output power electronic circuit. This allows an input signal to control the output load. When the input terminal is faced with an AC signal, the internal electronic circuit will be triggered and make the output terminal to work. It features fast response speed and AC load control, and can switch load over a wide range of AC voltages input signals.

When the input AC voltage reaches a certain value, the rectification, filters and comparison circuits in the GN325ALZ will output a driving signal to enable the control tube in the internal IC circuit. After the control signal is amplified, it will form a weak current signal, which will energise the SCR in order to activate the load. All these processes happen extremely quickly, resulting in the output current and voltage extremely similar to the input current and voltage.

Conclusion

GN325ALZ is a single-phase AC solid state relay, which can be used to control the reading lamp of the bed, the door light, or the fan powering on in home appliances. It can also detect voltages and control engines in large-scale industry and agricultural equipment. GN325ALZ can switch load over a wide range of AC voltages input signals quickly with a precise control, making it a popular and reliable choice.

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