need help : need the current to be completely zero

dark_conqueror said:

hi

i need some help.
i made a zero cross detector circuit and connect it to a differential circuit .
the problem is the current isn't completely zero when it suppose to(0.1V or so) and cause the circuit to differentiate that part too .

any idea how to solve this problem

thanks

d.c

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Optikon said:

Please clarify. You say a current isnt completely zero but then you say that it is 0.1 Volts or so. Well, is it volts or current that you are talking about?

Is it the output or something on the input that doesnt go to zero?

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