Re: Aw: [EVGRAY] Attachments out of order

Body

Hi Sven
 I think I can help you here in what Hector writes:
 60cps means 60 "cycles per second " (cps)
 So, 60 cps = 60 hz
 

 When looking at AC frequency, the hz frequency means the full cycle, both positive and the negative sinewave will equal one cycle....
 

 In 60 hz, a full AC sinewave = approx. 16.6 milliseconds, a half sinewave = 8.3 milliseconds (what I see on my scope at least!)
 

 I like to think milliseconds, to divide up the sinewave.....one millisecond equals 1/1000 of a second (one thousand milliseconds in a second)
 

 So it looks like Hector is trying to say 12ms length of time for each cycle of 16.6milliseconds to "collect" from the diode plug into capacitors, 
 

 which also would mean to collect into caps 6 milliseconds of each half-wave of 8.3 milliseconds, either the positive and/or negative wave of the AC cycle....
  
 So also, it looks like he is saying to leave 2.3 milliseconds "full OFF" time between cycles for switching times and caps to settle down or whatever else such as collapsing field spike to manifest and be steered with diodes or switched into other caps as well (other subject the flyback stuff)
 

 So at 60hz, 6 milliseconds to collect from positive wave, wait 2,3 milliseconds, now collect from negative wave for 6 milliseconds, then wait 2.3 milliseconds, then do it all again.....I don't know exactly where you would want the zero-point of sinewave to fall on that 2.3 milliseconds off time maybe not exactly in the middle of the 2.3 milliseconds, so this you can play with in experimenting....
 

 All this about the collecting of the energy into caps - discharging caps another story!!
 Just do the discharge with caps isolated and disconnected from the diodes and inductors - discharge caps all by themselves so not reflection during discharge....
 

 I would suggest to have ,two  Half-bridges (or single steering diodes) and TWO cap banks that collect the energy.from the same source.....so divide up the energy you collect immediately into two separate cap banks, 
 

 So send all the positive-sinewave energy into one cap bank, all the negative sinewave energy into the other cap bank.......this is what Hector says to do....
 

 If you wish to use a FWBR, now you will  collect the full sinewave, and there is no distinction between positive sinewave or negative sinewave energy!  
 

 In this case you can collect full sinewave for as long as you want (not dependent on half-sinewave time)
 

 And have TWO FWBRs, one feeding cap bank A the other feeding cap bank B and you choose the output frequency and on-time for cap discharge but just make sure cap bank A continues to  fill up while cap bank B discharges, 
 and cap bank B continues to fill up while cap bank A discharges....also good idea to have that 2.3 milliseconds of pure OFF time between discharges....
 Just MAKE SURE caps discharge all by themselves, with no connection to diodes or inductors that filled them up...."decoupled" caps they are called....
 ciao
 Kone