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Time：2021-09-10Views：0
With the progress of the times, the use of photodiodes has also stepped into people's lives, greatly improving the living standards, and the fields of application are also broader. Here is an introduction to the areas where photodiodes are used. Photodiodes are also used in consumer electronic products, such as DVDs, fire protection devices, and various types of equipment that require infrared remote control such as air conditioners and televisions.
All types of light sensors can be used to detect sudden light, or to detect the light-emitting state of the internal system of the same circuit. Photodiodes and light-emitting devices (usually light-emitting diodes) are combined into a module, which is often referred to as an opto-isolator (optical coupling element). If you analyze the working state of external mechanical components by analyzing the received light. Another function of the photodiode is to transfer stations between analog circuits and digital circuits, so that the two circuits can be coupled by optical signals, which can improve the safety of the circuit.
PN junction photodiodes, like other types of photodetectors, are widely used in photoresistors, photosensitive coupling elements, photomultiplier tubes and other equipment. They can output corresponding analog electrical signals (such as measuring instruments) or switch between different states of digital circuits (such as control switches, digital signal processing) according to the illuminance of the received light.
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