hello ,
i try to convert a sine wave (0.25v peak to peak) to a ttl signal with a transistor
some guy could do it with a bc547 here : https://www.youtube.com/watch?v=eKHKGpOcllA
so i tried a simulation
it seems ok, but in practice i can barely have a tension follower (gain=1)
i use a BC848 that has a gain of 90 to 180
not much but it should be able to at least double the input and i cant make it work
any advice?
thanks
i try to convert a sine wave (0.25v peak to peak) to a ttl signal with a transistor
some guy could do it with a bc547 here : https://www.youtube.com/watch?v=eKHKGpOcllA
so i tried a simulation
it seems ok, but in practice i can barely have a tension follower (gain=1)
i use a BC848 that has a gain of 90 to 180
not much but it should be able to at least double the input and i cant make it work
any advice?
thanks