CNY17-3

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Optoisolators - Transistor, Photovoltaic Output

Optoisolators help protect circuits from damage by physically isolating them, hence the name. CNY17-3 optoisolators are transistor-based devices, meaning they use the principles of electrical transistors to operate. In the context of optoisolators, transistor refers to the driving circuitry that provides the power to operate the lamp, or light source.

The output of a CNY17-3 optoisolator is photovoltaic. This means that the output is generated when a control voltage is applied at the anode of the photovoltaic cell. An optoisolator\'s photovoltaic cell has a junction diode connected between the anode and the emitter. When control voltage is applied to this junction, electrons are released from the anode and move through the diode to the emitter, thus creating a voltage difference between the anode and the emitter.

If a current-carrying wire is connected to the emitter and an output circuit is connected to the anode, the application of the control voltage will cause the electrons to flow from the emitter to the anode, generating an output voltage. This output voltage can be used to control another circuit, such as an LED, motor, relay, etc. An advantage of using a photovoltaic cell as the output of a CNY17-3 optoisolator is that the output voltage is usually higher than the input control voltage, up to 10kV.

The CNY17-3 optoisolator also provides several safety features that make it a reliable and robust optoisolator. The most important of these is that the circuit is electrically isolated, meaning that no electrical connection exists between the input and output circuits. This helps prevent any dangerous electric shock or fire that could otherwise occur when a faulty connection or wire is present between the two circuits. In addition, the optoisolator shuts off when the input voltage is too high or too low, helping protect the attached circuits from damage.

CNY17-3 optoisolators are excellent solutions for applications that require electrical isolation. They are often used in industrial machinery, medical equipment, and automotive applications. They are a cost-effective, reliable, and durable solution for protecting circuits from dangerous and unpredictable currents. By providing electrical isolation, they can help ensure the safety of both the equipment and the operator.

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