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   sci.electronics.design      Electronic circuit design      143,102 messages   

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   Message 141,929 of 143,102   
   john larkin to All   
   another HV power supply   
   01 Jan 26 15:42:25   
   
   From: jl@glen--canyon.com   
      
   We're designing a little GaN-fet high-voltage pulse generator and it   
   needs a high-voltage power supply.   
      
   This is a variation on the autotransformer flyback C-W multiplier   
      
   https://www.dropbox.com/scl/fi/gnvz49s1cviissqrxtq4v/R250_HV_1.j   
   g?rlkey=lsp8l18ibxw90nxbfxfz4myl9&raw=1   
      
   https://www.dropbox.com/scl/fi/1nnurjxipvwz8zpaeulpy/R250_HV_1.a   
   c?rlkey=w866yjcqrrqud8oikbpxr4ss5&dl=0   
      
   The HV is controlled by Vset, which will actually be a 3.3 volt PWM   
   out of an FPGA; saves a DAC.   
      
   We can get great 700 volt GaNfets in dpaks, and I expect higher   
   voltages in the future. They are crazy easy to drive compared to   
   mosfets or SiC.   
      
      
      
      
      
   John Larkin   
   Highland Tech Glen Canyon Design Center   
   Lunatic Fringe Electronics   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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