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Schmitt trigger circuit using BJT

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dveena_das

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I have designed a schmitt trigger with bjt, the utp=3.5v and ltp= 1.5V and o/p of schmitt trigger has levels 3.5V and 2.5V. This voltage is to be shifted to 3V and 0.7V respectively, can you plz tell how i can do this.

thanx
 

can we see your design? perhaps it would be better to re-design it rather than add on an additional circuit
 

There are schmitt triggers which I have seen using transistors. They are arranged as a long-tailed pair.

You can adjust resistor values to obtain your desired range of output.

Screenshot:

 

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