I'm trying to adjust the voltage output of a regulator dynamically using a PWM signal from the MCU. I came across this circuit online, and that implements what I'm trying to do but I am having difficulty understanding how its doing it. Is someone able to explain this circuit to me?
I know how to set a static voltage output of a regulator, by using the voltage divider, back into the FeedBack pin of the regulator. But the rest of the circuit to the right is confusing me.
I need to be able to dynamically control the output voltage from 0.69V to 0.89V, by using a PWM signal from an MCU.
Any help is appreciated!
I know how to set a static voltage output of a regulator, by using the voltage divider, back into the FeedBack pin of the regulator. But the rest of the circuit to the right is confusing me.
I need to be able to dynamically control the output voltage from 0.69V to 0.89V, by using a PWM signal from an MCU.
Any help is appreciated!
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