All About Circuits
All About Circuits
Volume 
EE Reference
Chapter
Circuit Schematic Symbols
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Transistors, Insulated-gate Field-effect (IGFET or MOSFET)

transistors insulated gate field effect symbols

We have the symbols for depletion mode and enhancement mode MOSFETs - notice the dashed versus solid lines.

In a depletion mode MOSFET gate voltage closes off the conductive channel from source (S) to drain (D).

With an enhancement mode MOSFETs gate voltage opens the conductive channel from source to drain.

 

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Lessons in Electric Circuits

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