AQV102

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Solid state relays (SSRs) are switches controlled by an electrical signal that activate or deactivate an electrical circuit. A variety of SSRs exist in the market, including AQV102, commonly used in many industrial, business and home control applications. The AQV102 SSR is a zero-crossing SSR with fast switching speeds, low terminal capacity, and a clamping mechanism that prevents electric arc occurrence. This makes the AQV102 a perfect choice for temperature controllers, pumps, fans, lighting systems, and other common industrial systems.

The AQV102 is an optically isolated, 4-terminal, single-phase, opto-isolated SSR. In zero crossing SSRs, the output is triggered at the point where the input line crosses over the zero-voltage level, past which the relay contacts switch states. This prevents arcing at the contacts, thus eliminating the possibility of contact degradation and reduces the amount of electromagnetic interference (EMI) when powering the SSR. The AQV102 offers several advantages, such as :

• Input circuits - have a low input current and higher isolation of ingress noise
• High switching speed - This results in faster switching times of approximately 10 microseconds.
• Low ON Resistance - The SSR has low on resistance which helps reduce input energy losses.
• Output circuits - Categorized by a clamping mechanism, a zero-crossing detection, and a thermal protection.

The AQV102 is an example of a single-phase SSR. It is an isolated AC SSR that uses triacs as the output switching element. Its input is triggered through a 4-pin arrangement, and the output has two pins. When the input is triggered, the AQV102 applies an opto-isolator to drive the triac. The triac in turn closes the AC switch to activate the output circuit, allowing a connected load application to be powered.

The AQV102 uses a simple circuit to switch the load on and off. A zener diode regulates the output voltage, while a voltage divider, opto-isolator and resistors ensure only a small amount of current is passed through the SSR. The output voltage is clamped to protect it against powerful transient spikes found in some electrical lines.

The AQV102 SSR is used in a broad range of applications, including: temperature control systems, pumps, fans, lighting systems, and other industrial systems. It provides precise control of temperature and other similar parameters. Its fast switching speed makes it perfect for applications that need instantaneous on or off response. Its high isolation and low terminal capacity make it more reliable than the traditional mechanical relay counterparts, and makes it more suitable for metering and safety applications.

The AQV102 is a popular choice for many industrial, commercial, or home control applications due to its fast switching speeds, low terminal capacity, and excellent control of temperature. This SSR can provide reliable operation in a variety of applications, which makes it a valuable tool for many industrial applications.

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