abi0987654321
Newbie level 4

I am having doubt on peak current control circuit (Rsns) section. Since op-Amp can ref voltage with ground. In that case voltage at non-inverting terminal should be 1.24v. How it is Vcst= 2.48mV? How Vcst=248mV will be the ref voltage to the comparartor? How did they derive Vcst=238mV? In what basic principle is used in that circuit analysis?
Page N0=12
This is the circuit
Page N0=12
This is the circuit
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