Bipolar Transistor Design Exercise
Channel: ElectronicsTeaching
Date: 2021-02-16

This video uses data from a datasheet to design a circuit using a bipolar transistor as a transducer driver. The main points covered are choosing the right transistor and calculating the value of the base resistor. This video is published as part of the website lessons rather than a stand alone video but it might still be useful for practical work, coursework projects etc.


Please note that, in line with the GCSE teaching syllabus this video is aimed at, I have assumed Vce is zero when the transistor is turned "on" which is not actually the case. It is however a good approximation. I have also based the calculations on the steady state of the heater. When it is cold it would have a lower resistance and so there would, briefly, be a greater collector current.