Digital Logic
Digital Logic
Digital Logic
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Transistors & MOSFETS (briefly)<br />
BJT<br />
(bipolar junction transistor)<br />
MOSFET<br />
(metal oxide semiconductor field-effect transistor)<br />
NPN<br />
PNP N-channel P-channel<br />
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simplified switch behavior<br />
forward bias the internal diode<br />
exceed the gate threshold<br />
~0.7 Volts 1-8 Volts<br />
requires relatively large<br />
current to “hold open”<br />
draws very little current<br />
4
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