lord loh. said:
I recently encountered some problems in one of my projects where the transistor base was floating. Whenever I touched the transistor base, the circuit would trigger. Then I managed to correct thye trouble by placing a base to emitter capacitor.
In an electronics magazine, I saw a project that uses this effect to run a circuit.
My experience is that the triggering is unreliable.
Why does this occur? Static charge? And is there a way to make sure that the transistor gets on when one touches it?
I have heard something like human body capacitance model? Is it related here?
Thank you.