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If i was switching a load on and off which uses less power 50 % duty at 10khz or 50 %at 1khz ?
How is power dissipation calculated when pwm is involved?
Strictly spoken, P = 1/T ∫VI dt respectively ∫V²/R dt in case of a resistive load.find the area under signal that is equal to the power.
If we can assume a pure resistive load and an ideal switch.Both use the same amount of power