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content/notes/ready/transistors/index.md

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+---
+title: Transistors
+description: 
+date: 2025-02-17T08:14:53+00:00
+draft: false
+tags:
+  - electronics
+author: TrudeEH
+showToc: true
+---
+
+
+
+Transistors are electronic components that behave like a `switch`, or `amplifier`.
+
+## Schematic
+
+```Plain
+        .--.,-- Collector
+Base --(--|<)
+        `--`'-- Emitter
+```
+
+## Examples
+
+### Switch
+
+If the `base` pin is provided with energy, the transistor allows current to flow in the main circuit.  
+![[image.png]]
+
+### Amplifier
+
+Altering the voltage given to the `base` pin allows us to control a larger voltage in the main circuit.  
+![[image1.png]]
+
+## Types of Transistor
+
+### NPN
+
+An NPN transistor combines the `base` pin and `collector` pin.  
+![[image2.png]]
+
+> Note: Even if the collector pin is disconnected from the circuit, a small amount of current still passes through. ![[image3.png]]
+
+### PNP
+
+A PNP transistor receives energy through the `emitter` pin, and then divides it to the remaining pins.  
+
+
+![[image4.png]]