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Divisor de tensão

Simples

Vsaída=Vin×R2R1+R2

Com carga

A load draws current from the divider's midpoint, which pulls Vout down from the unloaded (ideal) value — the classic "why did my sensor reading change when I connected it" gotcha.

Vsaída=Vin×R2∥RLR1+R2∥RL

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