CQY80NG

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Optoisolators - Transistor, Photovoltaic Output, have long been used for electrical isolation between signal circuits and power circuits, protecting critical systems from potentially damaging surges. The CQY80NG is a great example of such a device, specifically designed for industrial electronic control applications. In this article we will look at the application field and working principles of the CQY80NG.

The CQY80NG is one of the most popular optoisolators available on the market today, due to its versatility. The primary field of application for the CQY80NG is as a highly reliable, cost-effective solution for electronic control systems used in industrial and manufacturing settings. The CQY80NG can be used in both analog and digital systems, making it a great choice for applications involving a variety of input signals, including those from DC and AC voltages. The device also operates well in harsh environments, making it ideal for applications in extreme temperatures or locations where dust and moisture may be common.

The CQY80NG is a forward-biased optoisolator, featuring a photovoltaic cell with a built-in thyristor to separate the input circuit from the output circuitry. The thyristor provides a potential drop between the input and output circuits to protect the input circuit from voltage spikes. The thyristor also serves as a switch, turning the device off when the thyristor is triggered.

In order to provide the required level of electrical isolation, the CQY80NG works by first converting the input signal voltage into light, using the built-in light-emitting diode (LED). This light is then transmitted through an optical gap to the photovoltaic cell (PVCE). The PVCE converts the light into an electrical input voltage, which is then sent to the output circuit, providing the required isolation. This process also allows for a fast response time and low power consumption, with the LED being turned off when the signal is below a certain voltage.

The CQY80NG also features a built-in protection circuit, which helps prevent accidental short-circuiting of the device by blocking the DC current. This protection circuit also helps to limit the frequency of the input signal to prevent interference with other circuits. Furthermore, the CQY80NG can withstand short-term voltage spikes up to 1,000V, making it an ideal choice for industries with strict electrical standards.

In addition to the applications previously mentioned, the CQY80NG can also be used in other industrial control systems, such as printing and packaging equipment; motor control systems; and process control and monitoring systems. The CQY80NG is also especially useful in precision medical devices, due to its high performance and durability in harsh environments.

The CQY80NG is a great choice for applications that require reliable electrical isolation and high performance. Its versatile range of applications and built-in protection circuit make it an ideal choice for a variety of industries. Additionally, its cost effectiveness and low power consumption make it a great choice for a variety of applications.

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