Squre to tringular conversion by using opamp(capacitor application)

Concept on capacitor:
Can assume capacitor connected between inverting input and output is their simple logic here non inverting terminal connected to ground
I case capacitor charge in positive direction left terminal is +ve and right terminal is -ve hence right terminal connected output and its negative at the time hence output is follow the input,due to total input circuit is grounded
In case reverse operation of above then output is high is called utp and lower one called as ltp
I
output is high due terminal of capacitor +ve will be at output side and negative should me at input side
Utp=upper triggering point
Ltp=lower triggering point
Is the only concept capacitor try to draw opamp and show the circuit operation your self
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