Calculadora de Transferência Máxima de Potência
Calcule a carga ideal para transferência máxima de potência em um circuito elétrico.
V
Ω
Optimal Load Resistance
50.00 Ω
Maximum Power to Load0.5000 W
Efficiency at Max Transfer50%
Optimal Load Resistance vs Thevenin Voltage
Formula
## Maximum Power Transfer Theorem Max power is delivered when R_load = R_th. ### Formulas **R_load = R_th** **P_max = V_th^2 / (4 x R_th)** Efficiency is 50% at this point.
Exemplo Resolvido
V_th = 10 V, R_th = 50 ohms.
- 01R_load = R_th = 50 ohms
- 02P_max = 100 / 200 = 0.5 W
- 03Efficiency = 50%
Perguntas Frequentes
Why only 50% efficient?
Equal power is dissipated in source and load when they are matched.
Is max power transfer always desired?
No. Power systems prioritize efficiency. Max power transfer matters in RF and signal work.
AC circuits?
Load impedance should be the complex conjugate of source impedance.
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