A power electronic circuit is an electronic circuit composed of power electronic devices such as thyristors. It has the function of transforming and controlling high-power electric energy.
Since power electronic circuits are mainly used to replace conventional relay and contactor control circuits . The thyristor is used to replace the contacts of the relay and the AC contactor. The contact switch becomes a non-contact switch, and the thyristor is used instead of the gas-filled tube. Therefore, the power electronic circuit also has a distinction between the main circuit and the control circuit . Its control circuit is the trigger circuit of the thyristor in the main circuit. Therefore, the above-mentioned electrical control circuit diagram viewing method is basically applicable to the power electronic circuit diagram. However, when looking at the power electronic diagram, it is necessary to familiarize yourself with the electronic components corresponding to the symbols in the figure to understand its basic functions. According to the working principle Take out the block diagram and find out the unit circuit. This will give you an idea of ​​the general situation of the whole circuit. It will lay the foundation for the final understanding of the entire power electronic circuit diagram.
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LED technology is the latest and the best in terms of the audio visual technologies out there and it is still evolving. There is a strong emphasis in making LED display screens energy efficient, cost efficient and light weight apart from other quality requirements. Hence,Stage LED screen cabinets are also now expected to be lighter in weight. This need has resulted into the gradual shift from the iron cabinet, aluminum cabinet, to the cast-aluminum and die cast aluminum as the weight of the cabinet is lighter. Cast aluminum and die cast-aluminum cabinets are the latest of the cabinets used for LED casing.
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