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Autosave: 2024-07-04 08:00:03

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thomasabishop 2024-07-04 08:00:03 +01:00
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zk/Transistors.md
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@ -37,14 +37,12 @@ This happens because of how current and voltage interact in a transistor. The
small base current controls the larger collector-emitter current through a
process called current amplification.
This happens because of how voltage works. Voltage is the potential difference
between two terminals in a circuit. A high voltage increases the flow of current
whereas low voltage restricts or reduces it.
It follows from this that when the voltage at the base is high, a current flows
from the collector to the emitter and the transistor is "on". Whereas when the
voltage at the base is low no current flows from the collector to the emitter
and the transistor is "off".
When a small voltage is applied to the base, it allows a small current to flow
from the base to the emitter. This base current triggers a much larger current
to flow from the collector to the emitter. Think of it like a water valve: a
small turn of the handle (base current) can control a large flow of water
(collector-emitter current). The transistor amplifies this effect, allowing a
tiny input signal to control a much larger output.
## Transistors and logic gates