Transcription of Semiconductor Diodes - Learn About Electronics
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Semiconductor Diodes - Learn About Electronics
semiconductors 1 E. COATES 2016 Semiconductor Diodes Module Diodes Introduction Diodes are one of the simplest, but most useful of all Semiconductor devices. Many types of diode are used for a wide range of applications. rectifier Diodes are a vital component in power supplies where they are used to convert AC mains (line) voltage to DC. Zener Diodes are used for voltage stabilisation, preventing unwanted variations in DC supplies within a circuit, and to supply accurate reference voltages for many circuits. Diodes can also be used to prevent disastrous damage to battery powered equipment when batteries are connected in the wrong polarity. Signal Diodes also have many uses in processing signals in electronic equipment; they are used to obtain the audio and video signals from transmitted radio frequency signals (demodulation) and can also be used to shape and modify AC signal waveforms (clipping, limiting and DC restoration).
1. Three power rectifiers, (a Bridge rectifier for use with mains (line) voltages, and two mains voltage rectifier diodes). 2. A point contact diode (with glass encapsulation) and a Schottky diode. 3. A small signal silicon diode. 4. Zener Diodes with glass or black resin encapsulation. 5. A selection of light emitting diodes. Counter-clockwise ...
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