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Questions tagged [nmos]

A n-channel metal-oxide semiconductor (nMOS) transistor has n-type carriers in the channel. A positive voltage on the gate turns inverts the substrate (PWell) creating the channel and turning the device on. The term may also be used to describe logic circuits built around nMOS transistors.

7 votes
4 answers
6k views

Strange behavior from n-channel MOSFET

I'm using BS170 N-channel enchantment enhancement mode MOSFET and have the following circuit: The idea behind it is that the MOSFET should act as a simple switch and turn the LED on and off depending ...
AndrejaKo's user avatar
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28 votes
5 answers
4k views

Why old PMOS/NMOS logic needed multiple voltages?

Why does old PMOS/NMOS logic needed multiple voltages like +5, -5, and +12 volts? For example, old Intel 8080 processors, old DRAMs, e.t.c... I'm interested in the causes on the physical/layout ...
BarsMonster's user avatar
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