houly
Advanced Member level 4
Hello
I would want to evaluate the value of R2 and Vref in order to have an hysteresis voltage of 0.1V and a threshold- of 2.45V.
here is the schematic :
So I apply
VH=R1/(R1+R2)*Vsat+
And
VTH-=R2/(R1+R2)*VREF
Because VSAT-=0V.
Fo the reference voltage I have 2.485V and for R2=695.399k. When I simulate the stage, I have about132mV for the hysteresis… Could you help me to explain it ?
Regards
I would want to evaluate the value of R2 and Vref in order to have an hysteresis voltage of 0.1V and a threshold- of 2.45V.
here is the schematic :
So I apply
VH=R1/(R1+R2)*Vsat+
And
VTH-=R2/(R1+R2)*VREF
Because VSAT-=0V.
Fo the reference voltage I have 2.485V and for R2=695.399k. When I simulate the stage, I have about132mV for the hysteresis… Could you help me to explain it ?
Regards