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What is the minimum voltage and current to drive a MOSFET switching stage for a filterless class D amplifier having 86% efficiency? What ae the calculations needed to find this out?

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    \$\begingroup\$ Welcome to EE.SE. Is this a homework question? What have you found out on your own? Have you done any calculations yet? Is the power supply 86% efficient or the amplifier under load? Please clarify your questions and show us you have tried to solve this on your own. \$\endgroup\$ – Sparky256 Jan 1 at 3:11
  • \$\begingroup\$ 2.5W or 2.5kW or ?? \$\endgroup\$ – Sunnyskyguy EE75 Jan 1 at 3:32

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