Anonymous
Anonymous asked in Science & MathematicsEngineering · 1 decade ago

is SCR a special type of transistor?

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  • 1 decade ago
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    SCR is the abbreviation of Silicon Controlled Rectifier. A silicon-controlled rectifier (or semiconductor-controlled rectifier) is a 4-layer solid state device that controls current flow. An SCR can be seen as a conventional rectifier controlled by a gate signal. It is a 4-layered 3-terminal device. A p-type layer acts as anode and an n-type layer as a cathode; the p-type layer closer to the n-type(cathode) acts as a gate.

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  • 1 decade ago

    Isn't wikipedia great? :) My knowledge of these is that they allow one to modulate the capacity of an electric heater.

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  • 1 decade ago

    it is!

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