Hello everyone,
In my lab project, i have to gererate a square wave and it is very simple to do with split supplies. However there is a bonus for single supply. I did some work researched etc. and i found out that the method for using single supplies introduce instability to the system and to deal with it one needs to put capacitor zener diodes and several things to several places.
I thought of a different approach. First i take the supply voltage give it to a follower(single supply); then give its output to a inverting circuit(single supply). Introducing a voltage divider and half voltage i plan to use it as my new refereance(i think it is called virtual ground) for the rest of the circuit. Therefore i will have a double supply (+vcc and -vcc) and i hope not to deal with instability of a voltage follower and an inverter. My simulation is below. As i intended i got -VCC and +VCC. However implementing it on a breadboard, i could only got positive voltage..
What might be the problem and what might be a sollution?
Thanks for any help
In my lab project, i have to gererate a square wave and it is very simple to do with split supplies. However there is a bonus for single supply. I did some work researched etc. and i found out that the method for using single supplies introduce instability to the system and to deal with it one needs to put capacitor zener diodes and several things to several places.
I thought of a different approach. First i take the supply voltage give it to a follower(single supply); then give its output to a inverting circuit(single supply). Introducing a voltage divider and half voltage i plan to use it as my new refereance(i think it is called virtual ground) for the rest of the circuit. Therefore i will have a double supply (+vcc and -vcc) and i hope not to deal with instability of a voltage follower and an inverter. My simulation is below. As i intended i got -VCC and +VCC. However implementing it on a breadboard, i could only got positive voltage..
What might be the problem and what might be a sollution?
Thanks for any help
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