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Tunnel diode theory basics?
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Explanation:
A Tunnel Diode is a heavily doped p-n junction diode. The tunnel diode shows negative resistance. When voltage value increases, current flow decreases. Tunnel diode works based on Tunnel Effect.
Tunnel Diode
The following image shows the symbol of a Tunnel Diode.
Tunnel Diode Symbol
Leo Esaki invented Tunnel diode in August 1957. Therefore, it is also called as Esaki diode. The materials used for this diode are Germanium, Gallium arsenide and other silicon materials. Tunnel diode shows a negative resistance in their operating range. So, it can be used as amplifier, oscillators and in any switching circuits.
Tunnel Diode Image 1
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