How to test diode || how to check diode with multimeter || Diode testing || Diodes Explained
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In this tutorial we look at how diodes work, where diodes are used, why diodes are used, how to test diode polarity and how check faulty diode, how to repair circuit.
The basics how diodes work working principle.
Position to find out approximate forward voltage drop or barrier. Potential of the diode.
What is Diode and how it work?
A diode is a two-terminal electronic component that conducts current primarily in one direction (asymmetric conductance); it has low (ideally zero) resistance in one direction, and high (ideally infinite) resistance in the other. A diode vacuum tube or thermionic diode is a vacuum tube with two electrodes, a heated cathode and a plate, in which electrons can flow in only one direction, from cathode to plate. A semiconductor diode, the most commonly used type today, is a crystalline piece of semiconductor material with a p-n junction connected to two electrical terminals. Semiconductor diodes were the first semiconductor electronic devices. The discovery of asymmetric electrical conduction across the contact between a crystalline mineral and a metal was made by German physicist Ferdinand Braun in 1874. Today, most diodes are made of silicon, but other semiconducting materials such as gallium arsenide and germanium are also used.
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6 сен 2024
