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aguantesoda
diyAudio Member

Join Date: Aug 2006
Location: Buenos Aires
Calculation

Hi! I want do to know the power of my amplifier, knowing that the tension is of 25v+25v and RL is 8 ohms.?

hola, quería saber como hago para calcular la potencia de mi amplificador, sabiendo que la tensión es de 25v+25v. y la carga es de 8 ohms?

It is for this amplifier:
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 30th December 2006, 03:01 PM #2 edl   diyAudio Member     Join Date: Oct 2004 Hi, If +/-25V is loaded voltage, then the output power is about 30W RMS on 8 ohm. If 25V is the idle voltage, then it produces about 20W RMS. Regards, On the margin for that power I would choose something more elegant, maybe an integrated power amplifier.
 30th December 2006, 03:03 PM #3 edl   diyAudio Member     Join Date: Oct 2004 At "integrated power amplifier" I mean chip amplifier.
lineup
diyAudio Member

Join Date: Dec 2005
Location: the north
Re: Calculation

Quote:
 Originally posted by aguantesoda Hi! I want do to know the power of my amplifier, knowing that the Voltage is of 25v+25v and RL is 8 ohms ? hola, quería saber como hago para calcular la potencia de mi amplificador, sabiendo que la tensión es de 25v+25v. y la carga es de 8 ohms? It is for this amplifier: Es para este amplificador:
For +/-22 Volt peak Max Output ( -3V drop for transistors, and also power supply transformer drop )
FORMULA: P (WATT rms) = ( UxU ) / ( 2xRL )
Watt RMS = 22x22 / 2x8
Watt RMS = 484 / 16

Resultade: 30.25 Watt RMS into 8 Ohm
Answer you get MAX ~30 Watt power / 8 Ohm

(And maybe 40-50 Watt into 4 Ohm speakers )
__________________
lineup

 30th December 2006, 09:58 PM #5 edl   diyAudio Member     Join Date: Oct 2004 As I wrote too.
 31st December 2006, 09:02 PM #6 aguantesoda   diyAudio Member   Join Date: Aug 2006 Location: Buenos Aires Very good! thanks

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