Can anyone tell me how to realize Schmitt Trigger (With low threshold = 1 V and upper threshold = 9 V and output = 15 - 20 V) from 741 Opamp IC.
How many pins possess 741 Opamp?
Are there different types of 741 Opamp?
How can I get the datasheet?
You do know that the power supply will need to be -2V and +22V in order for this to work?
The inputs need to be within 3V of either rail in order to the op-amp to work and the output stage will loose a couple of volts.
I suggest you save yourself the trouble and use a comparator such as the LM311 instead of using an op-amp which isn't really designed to be used as a comparator.