Today during lecture we went over diodes and transistors work then went on to use them in building circuits. In a diode we have an ntype and ptype junction where next to each other which then creates a depletion zone between them when a current is applied so that electrons flow from ground to ntype the diode depletion zone will disappear and if its plugged in wrong it will get bigger meaning diodes only allow current in one direction.
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| Here we have a breadboard circuit with an led and resistor, the led acts as a diode meaning it only allows current to flow one way. |
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| Here we have a switch which is always in the open state, |
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| a schematic with a transistor that will act too amplify our signal current/collector. |
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