CNX36UW

Optoisolators -Transistor, Photovoltaic Output

Optoisolators, also known as optocouplers, are electronic devices used to isolate electrical circuits. They are used to prevent stray electrical signals and voltage spikes from compromising system integrity and damaging components, while allowing transmission of low-level signals. The common type of optoisolator is the photovoltaic output optical isolator, which consists of a light-activated transistor and photovoltaic output circuit. An example of such a device is the CNX36UW.

The CNX36UW is a type of optoisolator specifically designed for low-power applications. It consists of a transistor optically isolated with a photovoltaic circuit, designed to prevent high voltage spikes from the output circuit. The device is particularly useful for interfacing low power circuits, including systems that must handle noisy signals or control switching of high-speed logic signals. The device can be used to detect low level analog and digital signals (up to a maximum of 12 volts) and provide isolation from analog noise and other environmental hazards.

The CNX36UW is a single-channel optoisolator with a transistor output. The optocoupler contains an IR LED with a photovoltaic output circuit, which produces a photocurrent when light is applied. The photocurrent is then used to turn the transistor on and off. When the transistor is turned on, the output current is passed to the output circuit, allowing communication between the two sides of the optoisolator.

The working principle of the CNX36UW is simple. When the light from the IR LED is applied to the output circuit, the photovoltaic output circuit produces the photocurrent. This photocurrent is used by the transistor, turning it on or off depending on the intensity of the light. The output is then passed through the transistor to the output circuit, allowing a signal to be transmitted. The circuit also has protection against reverse polarity, over-voltage spikes, and short circuits, making it a reliable and safe device.

The CNX36UW is ideal for applications where low-power signals need to be transmitted with a high degree of isolation. Some examples include digital audio processing, signal switching, industrial control, and motor control. In addition, due to its high isolation, the CNX36UW can be used in applications where electrical noise must be kept to a minimum, such as in medical equipment and sensitive electronic equipment.

In conclusion, the CNX36UW is a low power optoisolator with a transistor output. The device consists of an IR LED and a photovoltaic output circuit, allowing it to provide isolation from analog noise and other environmental hazards. The device is particularly useful for interfacing low power circuits, including systems that must handle noisy signals or control switching of high-speed logic signals. It is ideal for applications where low-power signals need to be transmitted with a high degree of isolation and for applications where electrical noise must be kept to a minimum.