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???
04/19/05 15:18
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#91931 - the Titanic hit the iceberg
Responding to: ???'s previous message
the frequency is from 20-80Hz. .... The MCU is 87C752. ... It has to be very good sinwave in order for the Controller to control Voltage, Current, Frequency, and calculate KW, KVAR, Power Factor, and a bunch of other features...

In my very best estimate, you are in deep doo-doo.

A 3 phase Sine Wave adhering to the parametres you state is way beyond the capability of a 87C752. The typical processor for such is a 32 bit DSP.

You can, of course, continue with this processor, if so i wish you luck, you will need it.

Erik



List of 20 messages in thread
TopicAuthorDate
16bit by 8bit divide            01/01/70 00:00      
   Check This!            01/01/70 00:00      
      And This:            01/01/70 00:00      
   16bit by 8bit divide            01/01/70 00:00      
      Re:            01/01/70 00:00      
         16bit by 8bit divide            01/01/70 00:00      
            To Thelam:            01/01/70 00:00      
   well, if you look a bit to the left            01/01/70 00:00      
   16bit by 8bit divide            01/01/70 00:00      
   Its just ben done            01/01/70 00:00      
   Non-iterative Division            01/01/70 00:00      
   Accuracy            01/01/70 00:00      
   No wonder            01/01/70 00:00      
   again and again            01/01/70 00:00      
   Efficient Division            01/01/70 00:00      
   the divide may ne the tip of the iceberg            01/01/70 00:00      
      16bit by 8bit divide            01/01/70 00:00      
         the Titanic hit the iceberg            01/01/70 00:00      
            16bit by 8bit divide            01/01/70 00:00      
   Don't know if it helps.            01/01/70 00:00      

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