I learned the rule of thumb that when using a BJT as a switch, one should apply 1/10th of the desired collector current to the base. Recently, posts state that 1/20th current should be used.
Ok. But huh? When should either option be used? I guess by using 1/10th all the time, you can be assured of the transistor conducting. So, why use 1/20th ever? What’s the advantage and when should it be used?
Ok. But huh? When should either option be used? I guess by using 1/10th all the time, you can be assured of the transistor conducting. So, why use 1/20th ever? What’s the advantage and when should it be used?