PS8502L2-AX

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Optoisolators are electronic components used to transfer signals from one electrical circuit to another without allowing the circuits to be electrically connected. They utilize optical coupling between the two circuits, enabling them to exchange electrical signals while still keeping them isolated. Transistor, Photovoltaic Output optoisolators are a special type of optoisolator which use a photovoltaic cell as its optically coupled light emitter, detector, and switch all in one. One of the examples of such device is PS8502L2-AX by Panasonic. This article will discuss the applications and working principle of PS8502L2-AX.

Applications

PS8502L2-AX is a surface mounted, pico-coupler type optoisolator, with solid transfer characteristics. It is designed for various electric isolation applications such as high-frequency signal transmission, power, and interface isolation, and motor drive circuits. Its maximum input voltage is 200Vrms or 280V peak, so it is well-suited for applications in medical, test and measurement, and automotive industries. The device is particularly useful for situations where it is necessary to isolate high-speed digital signals, such as in controlling a motor drive. It also has a discreet isolation rated at 5000 Vrms, which ensures reliable operation up to a wide range of temperatures.

Working Principle

PS8502L2-AX optoisolator works by transferring light signals between the input (emitter) and output (detector) electrodes. The device utilizes a photovoltaic cell as its optically coupled light emitter, detector, and switch all in one. The input signal is first converted into a light signal by the LED emitter. This light is then processed by the photovoltaic cell, which in turn will output a current that is proportional to the intensity of the light stimulus received. This current is then converted into a digital signal which can be used to control or switch the output circuit.

The optoisolator’s design is such that it effectively blocks any direct connection between the input and output circuit, and thereby isolating the circuits from each other. This enables the device to be used in applications that require electric isolation, while still allowing for the transmission of high-speed digital signals.

Overall, PS8502L2-AX optoisolator offers reliable isolation for various electric isolation applications. With its distinct transfer characteristics and impressive rated voltages, the device provides yet another level of protection for users.

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