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???
04/29/10 07:21
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 		 #175517 - What's it for?
Responding to: ???'s previous message
Rather than discuss what may well be a fundamentally flawed approach, why don't you tell us what you're actually trying to achieve here?

Ap Charles said:
drive a piezo (600watt rms @ 8ohm) at 15-16Khz frequency range? (sine wave)

What, exactly, is this "piezo" that you need to drive?

What, exactly, is the nature of the signals that you need to drive into it?

List of 33 messages in thread
TopicAuthorDate
Audio amplifier            01/01/70 00:00      
   Probably            01/01/70 00:00      
   kHz            01/01/70 00:00      
      Probably too small amp            01/01/70 00:00      
   Usually not...            01/01/70 00:00      
      specs            01/01/70 00:00      
         Real PA Manufacturers...            01/01/70 00:00      
            rms power ...            01/01/70 00:00      
               "Continuous sine wave power" rated in "RMS Watts"...            01/01/70 00:00      
               Oh yes there is            01/01/70 00:00      
            So hold on then            01/01/70 00:00      
               Exactly!            01/01/70 00:00      
                  Stay away from anything with PMPO rating            01/01/70 00:00      
                     Numbers...            01/01/70 00:00      
         Standards            01/01/70 00:00      
   What's it for?            01/01/70 00:00      
      WOW            01/01/70 00:00      
         transucers            01/01/70 00:00      
            Example Ideas...            01/01/70 00:00      
         Piezos are capacitive            01/01/70 00:00      
            Derating            01/01/70 00:00      
               You still haven't said what it's for!            01/01/70 00:00      
                  The question is            01/01/70 00:00      
                     Not meaningful to guess - we will just produce random noise            01/01/70 00:00      
                        Take any            01/01/70 00:00      
                           600W, how to calculate?            01/01/70 00:00      
                              600W            01/01/70 00:00      
                           But why do you think that it is relevant?            01/01/70 00:00      
                              relevant?            01/01/70 00:00      
                                 High power at high frequencies definitely dangerous.            01/01/70 00:00      
                                    Like or dislike isnt a point            01/01/70 00:00      
                                       rms should be the same, but you can bend the truth a bit            01/01/70 00:00      
                                       Compression driver is what you need...            01/01/70 00:00      

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