Hi I just wanted to convert the output voltage of the circuit I have made to a wider range of 0V to 5V. I would need this output to be analog, so the output shouldnt be 0V. OR 5V. I have two circuits, the first one's output range is 4.6V to 5V and the second has a range of 3V to 5V. How would you change those output to 0V to 5V?. Thanks a lot in advance.
The easiest way is to use a comparator.
Set the 'comparison' voltage somewhere close to the middle of the input voltages and the output will swing from one logic level to the other (typically 0 to 5V) as the input exceeds it.
The easiest way is to use a comparator.
Set the 'comparison' voltage somewhere close to the middle of the input voltages and the output will swing from one logic level to the other (typically 0 to 5V) as the input exceeds it.
Hi Brian,
Thanks for the reply, Im just wondering if using a comparator setup like u described would have the analog voltage output that I would want, so the range is 0V to 5V instead of an output of (logic low)0V and (logic high)5V? Do you have any other suggestions? thanks in advance.
Thank you very much for your reply Tahmid. Do I implement a DC level shifter using a difference amplifier? Is it ok if you can elaborate on what sort of op amp setup i should be using/looking for?
You may try to use a summing amplifier circuit based upon the standard Inverting Operational Amplifier configuration that can be used for combining multiple inputs. See the example:
You may try to use a summing amplifier circuit based upon the standard Inverting Operational Amplifier configuration that can be used for combining multiple inputs. See the example:
You may try to use a summing amplifier circuit based upon the standard Inverting Operational Amplifier configuration that can be used for combining multiple inputs. See the example:
thanks sir, I shall try it, may i ask what sort of program/software/webiste did u use to create the schematic u just shown me?? i would also like to to try it for the other setup: 3V to 5V converted to 0V to 5V. thank you very much for your assistance
google it .."op amp circuits" or **broken link removed**
generally all u need is a ref volt like mister.. post and use fixed resistors with rotary switch to get several fixed outputs .
**broken link removed**
install ltspice and u can run any-circuit and get real time scope like voltages
cool thanks, atm I cannot seem to download the demo because I am at uni, is it ok for you to change the input voltage range from 3.5V to 5V and the output from 0V to 5V? and post the schematic here? thanks in advance.. sorry for being a pin and sorry i didnt know there is a help button here.. :S