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| Audio Amplifier Power Output Cunundrum |
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| Zero999:
--- Quote from: DW1961 on October 13, 2021, 12:06:44 am --- --- Quote from: Zero999 on October 07, 2021, 05:57:04 pm ---It's BS. It won't deliver that much RMS power into a 4 Ohm load, with a 19V power supply, even at 100% efficiency. P = V2/R For a sine wave: PRMS = PREAK/2 Therefore: POUT = VSUPPLY2/(2R) POUT = 192/(2*4) = 361/8 = 45.125W --- End quote --- What about two of the same amp chips running in BTL mode? --- End quote --- My calculations are for the amplifier configured in BTL mode, with a single supply. |
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