Commanding 2 Transistors with one one command circuit

1. Apr 30, 2008

mdpai

Hi to all,

I know how to command a transistor, using a comparator with a sinusoidal and a triangular signal as inputs.

But let say I have two transistors, T1 and T2. Using the same command, I want that when T1 is ON, so T2 is OFF. vice versa. How can I achieve this?

Thanks!!!

2. Apr 30, 2008

NoTime

One possible solution is to use T1 to invert the control signal into T2.

3. May 2, 2008

Emicro

You could use an inverting op-amp to invert the control signal between the comparator and T2. If you are using a comparator as the input though, you may want to use an asycronous J-K flip flop between the comparator and the two transistors as this will not cause a propagation delay in the output of T2, thus causing the outputs of T1 and T2 change at nearly the same time.

Last edited: May 2, 2008
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