CNW139

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The CNW139 optoisolator is a transistor-photovoltaic output device that provides electrical isolation between two circuits. It has a number of applications, ranging from providing signal isolation to controlling high voltage, and from basic switching to pulse control. The working principle of the CNW139 is its ability to switch electric currents through an optically isolated mechanism.

The CNW139 consists of a visible light source, typically a light-emitting diode (LED), which produces a beam of light, typically an infrared (IR) beam. When the LED beam is interrupted by an object, such as a wire, a transistor is immediately activated to switch current. This process is known as an optically isolated switch. The CNW139 also contains a photovoltaic device, usually an exposed gallium arsenide (GaAs) diode, which is used to detect the IR beam. The act of detecting the beam functions as a switch and is used to control electrical current.

The CNW139 can be used in a variety of applications. It can be used to switch electronic signals, such as to control a relay, to sense the presence of an object, or to provide a remote power switch. It can also be used to isolate low-voltage signals, such as DC and AC signals, from high-voltage systems. Additionally, it can be used in pulse-width modulation (PWM) and servo control to provide electrical isolation, as well as in pulse-generating and switching circuits to control current.

The CNW139 optoisolator is an effective and reliable device for controlling electrical current. It provides isolation between two circuits and is capable of controlling both DC and AC signals. It can be used in a variety of applications, ranging from basic switching to more complex control systems. The CNW139 is also relatively inexpensive, making it a cost-effective solution for projects requiring electrical isolation.

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