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Complete Manual On Electronic Components And 1001 Project Circuit Diagram (vol5) by omobajesus: 10:49am On Nov 21, 2008 |
[size=18pt][center]DIODE[/center][/size] [size=16pt]A diode is an electrical device allowing current to move through it in one direction with far greater ease than in the other. The most common kind of diode in modern circuit design is the semiconductor diode, although other diode technologies exist. Semiconductor diodes are symbolized in schematic diagrams such as Figure below. The term “diode” is customarily reserved for small signal devices, I ≤ 1 A. The term rectifier is used for power devices, I > 1 A. Semiconductor diode schematic symbol: Arrows indicate the direction of electron current flow. When placed in a simple battery-lamp circuit, the diode will either allow or prevent current through the lamp, depending on the polarity of the applied voltage. (Figure below) Diode operation: (a) Current flow is permitted; the diode is forward biased. (b) Current flow is prohibited; the diode is reversed biased. When the polarity of the battery is such that electrons are allowed to flow through the diode, the diode is said to be forward-biased. Conversely, when the battery is “backward” and the diode blocks current, the diode is said to be reverse-biased. A diode may be thought of as like a switch: “closed” when forward-biased and “open” when reverse-biased. [/size] [center][size=16pt]DO YOU NEED COMPLETE ELECTRONIC MANUAL FOR SCHOOL PROJECT: ND, HND, MSC, PHD STUDENTS WITH 1001 VARIOUS ELECTRONIC CIRCUIT SUITABLE FOR PROJECT THIS IS AVAILABLE ONLINE NO MATTER YOUR LOCATION, YOU CAN GET THE MANUAL YOU CAN DOWNLOAD AND PRINT OUT EMAIL: omobajeus1@yahoo.co.uk for details OR Call: 07027255961, 7938839 DOWNLOAD MANUAL ON DIODE FREE TRUST ME[/size] [/center]
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