Transistor as a Switch PDF

I hope you enjoyed this little article about using a transistor as a switch. I hope I was able to make it easy to understand and factual in the same style as an encyclopaedia. The animations in this article may help visualise the theory for beginners such as Design and Technology students.

Documentation

Here are some links to basic documentation to help student find the information quickly. It is always a right pain when you have to find "hFE" values of transistors, or some of the basic parameters of the components used.

• Bipolar Transistors
• BC547
• BC548
• BC639

• Darlington Transistor
• BCX38A-B-C

• Light-Dependent Resistor
• ORP12

• Darlington Array IC
• ULN2003a

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