modified 11 years ago

Fully clamped voltage comparator

00:27:28

Threshold = Vref × R2/R1
                   = -15 × 1M×100k = 1.5V

Negative clamping level=
-(+Vsup) × Rb / Ra =
-15 × 10k / 15k = -10V

Positive clamping level =
-(-Vsup) ×Rb / Ra =
+15 × 10k / 15k = +3V

Vout = -10V for Vin > 1.5V
Vout = +3V for Vin < 1.5V

The slope of the transition is determined by the slew rate of the operational amplifier. The set  points, of course, must be within the normal VOH and VOL of the operational amplifier.

published 11 years ago

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.