CNY117F-4

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Optoisolators are widely used in many industrial applications as a means to increase the safety of a system, often by utilizing an isolated power source. A surefire application of optoisolators is in the power supply circuits for industrial machines. This article aims to discuss the application field and working principle of the CNY117F-4 optoisolator.

The CNY117F-4 is part of a series of optoisolators manufactured by Sharp which can isolate a low voltage circuit from a high voltage power supply. The CNY117F-4 contains a photovoltaic and a transistor output. The photovoltaic output produces a current response according to an LED input current. The transistor output has an open collector which is used to power a relay or any other type of transistor operated device. The capacitor within the CNY117F-4 enables a user to stretch the interval that gives off the output voltage.

The CNY117F-4 can be used for a variety of industrial applications, including in motor controls, high speed switching circuits and power supplies. The CNY117F-4 removes the need for a relay to switch on and off a load, as it can respond to a variety of inputs. This can greatly reduce the energy consumption and heat generation of the appliance, potentially increasing the reliability and efficiency of the device.

The working principle of the CNY117F-4 is rather simple. When an LED current is sent to the optoisolator it is converted to voltage by the photovoltaic output. This voltage is then used to activate the transistor output, thus powering the device being controlled. The capacitor connected within the optoisolator simply acts as a buffer, allowing for longer but still brief periods of power release.

Essentially, the CNY117F-4 optoisolator provides an easy to install solution for isolation between low and high voltage circuits. Its transistor output and photovoltaic capability make it ideal for motor controls and power supplies, while the capacitor connected to the optoisolator provides an adjustable delay that still carries a short current. This makes the CNY117F-4 an ideal choice for industrial applications where the efficient and safe utilization of hazardous materials is necessary.

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