Learn about Switch (with transistors) to improve your skills and design your electronics projects yourself.
Where can I get Switch (with transistors) Circuit Diagram with Explanation?
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How to design a Switch (with transistors) (electronic circuit)?
You can easily design the Switch (with transistors) circuit by practicing the exercises given below. Here you can design and simulate your own electronic circuits with this Online Circuit Designer and Simulator.
A simple switch circuit using a transistor. When the switch is closed, current flows through the base to the emitter (this junction acts like a diode). This switches the transistor on, so that current can flow from the collector to the emitter. A small base current can control a much larger current from the collector to the emitter.
The transistor wants the collector-emitter current to be 100 times the base current, but it can't, because such a large current through the 300 ohm resistor would bring the collector below ground. So, the transistor is in saturation mode; it brings the collector voltage as low as possible.
