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2 votes

TL494 step-down converter with CC/CV

Use a cascaded current-mode control, both to ease compensation, and to set the current limit: simulate this circuit – Schematic created using CircuitLab Current error amp can be one of the ...
Tim Williams's user avatar
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2 votes

Why is the power conserved in a phone charger?

I don't understand because in a generator or a battery, when the voltage increases, the current also increases according of the resistance in the circuit because U=RI. Why does the current increase in ...
Tanner Swett's user avatar
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1 vote

Why is the power conserved in a phone charger?

Why is power conserved? Why does the increase of voltage not increase current? Because we choose components, topologies and, designs that attempt to conserve power as much as we can. It's a vital aim ...
Andy aka's user avatar
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0 votes

Why is the power conserved in a phone charger?

why is power conserved? The Nature just works that way. That means: our Universe happens to have this power conservation property. It follows from more basic laws, but that's how it is. Power cannot ...
Kuba hasn't forgotten Monica's user avatar
0 votes

Why is the power conserved in a phone charger?

You are right, U=R*I is always true for a pure resistive circuit (where only DC is involved!) When a transformer (or switching regulator) is present, you have 2 circuits, one on the primary side and ...
Stefan Wyss's user avatar
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