Single ended Non inverting schmitt triggers upper and lower threshold voltage calculations

[Bjtpower_magic]

Hello Folks,
I am trying to design Non inverting Schmitt trigger for VUT and VLT with Single ended opamp

Now while searching through some designs to calculate VUT and VLT
VUT=(RI/RF)X(+VSAT)

VLT=(RI/RF)X(-VSAT)

Now in our case, +VSAT=+5V, -VSAT=0V
So VLT coming to 0V

Can someone help me how we can design single ended non inverting schmitt trigger with VUT=3V, VLT=2V and vsupply=+5V
Derive equation or share weblink which will help me.

 

[FvM]

Apply 2.5V bias to inverting OP input, derive modified equations, calculate. Hint: try Rf = 5 Ri.

 

[Bjtpower]

Apply 2.5V bias to inverting OP input, derive modified equations, calculate. Hint: try Rf = 5 Ri.

Hi FvM
Is it something VUT=(Ri/5Ri)*5=1V
VLT=(Ri/5Ri)*0=0V

So by applying 2V reference to above equation would result to
VUT=1V+2V=3V
VLT=0V+2V=2V

Is it something?

Pls confirm

 

[danadakk]

Comparator Hysteresis Calculator

Curing Comparator Instability with Hysteresis | Analog Devices

Op-amps can be used as comparators, but a better way is to use the special integrated circuits that are optimized for this purpose.

www.analog.com

Regards, Dana.