Dear All,
I have attached L200 Schematic which is programmable voltage and current regulation.
My doubt is the function of the operational amplifier? the 0.1-ohm resistor is current sense resistor. when the load is 1A it has a drop of 0.1V. Accordance to me, it is a difference amplifier which amplifies this 0.1V.
The output of OPamp Could be =(p1/R2)*0.1V.
How L200 is going to do regulation by varying P1 resistor? What is the function of the operational amplifier?
I have attached L200 Schematic which is programmable voltage and current regulation.
My doubt is the function of the operational amplifier? the 0.1-ohm resistor is current sense resistor. when the load is 1A it has a drop of 0.1V. Accordance to me, it is a difference amplifier which amplifies this 0.1V.
The output of OPamp Could be =(p1/R2)*0.1V.
How L200 is going to do regulation by varying P1 resistor? What is the function of the operational amplifier?
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