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10/28/05 00:43
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#103063 - 8051 ds420 in close proximity to HV
Wondering if anyone had ever used an 8051 in close proximity
to HV. I've got a flyback transformer running around 20kv output, and I'd like to run the output through a bunch of resisters to make a voltage divider circuit which outputs 0-5V or so, and feeds that into a ADC which the 8051 then reads. Purpose being, I'd like to be able to display the approximate voltage output on an LCD display, as well as other stats of the system such as driving frequency. (which would range from 10-45Khz)

There would be optoisolation between the resistor divider network and the ADC; im more concerned about electromagnetic fields. Any thoughts?



List of 17 messages in thread
TopicAuthorDate
8051 ds420 in close proximity to HV            01/01/70 00:00      
   Smoking!            01/01/70 00:00      
      Static fields            01/01/70 00:00      
         analog opto isolator            01/01/70 00:00      
   marx            01/01/70 00:00      
      Re Marx            01/01/70 00:00      
   Measure low voltage primary side xmfer            01/01/70 00:00      
      seems to be a good solution            01/01/70 00:00      
   Be warned...            01/01/70 00:00      
      high voltages            01/01/70 00:00      
         ESD protection is no HV protection!            01/01/70 00:00      
         One hand rule            01/01/70 00:00      
            tesla coil            01/01/70 00:00      
               two notres            01/01/70 00:00      
                  resistors            01/01/70 00:00      
                     Special HV resistor is needed            01/01/70 00:00      
                        HV resistors            01/01/70 00:00      

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