Re: Aw: [EVGRAY] Attachments out of order

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Hi Sven
 OK read those Hector posts - a lot of it is making it so SCR switches on and off at just the right as Hector likes to use those since they are so indestructable but the way the gates trigger in them (to me) is very tricky thing to do because the gates only turn off with zero voltage, and so I have never used SCR switches....
 

 I would suggest perhaps you make a nice sinewave peak sensing circuit where you can trigger on and off the gates exactly where you want within the sinewave, and also be able to adjust the pulse width too. And then if you want or need to use SCRs, perhaps the sinewave peak sensing circuit can trigger the gates for you via small mosfets....(see circuit link below)
 

 I like where Hector mentions think of the AC sinewave as two DC pulse circuits, one positive one negative....Now just work on one half, extract the flyback into caps via steering diodes, have ON--time filling caps just so, have the ON-time of discharging caps just so...once you get one half then do both halves....and keep that couple of milliseconds full off time between the switch overs from positive to negative mode.
 

 Here is a sinewave peak sensing circuit that finds the time you want to turn on mosfets during a sinewave (at peak or before or after peak anywhere you want)
 And also you can adjust the pulse width time too with it....the third chip (4093) is a chopper-chip and you can bypass this by connection to the J3 junction wire:
 Perhaps this can be what triggers the gates of SCRs via small mosfets??
 Perhaps you can just use HV mosfets with 4 or 5 paralleled to handle more amps, in place of using SCRs?
 

 "I think" Hectors SCR triggering operates in a sort of "automatic" mode, where the SCR must have zero voltage at the gate, to turn off, so it relies on the sinewave zero voltage points as when actually they will trigger, then somehow you need to delay or advance that zero-voltage "point of reference" via light dimmer switches or the other means he writes about....
 

 I think lots easier to just have a special gate-triggering circuit for the sinewave and have that gate triggering circuit very easily adjustable as exactly when and how long the gates of your switching will turn on and off...
 

 here is the sinewave peak sensing circuit Ron Pugh made up and it works very well as I have tried it out and so have others too - it is easy to build, and for the power-feed and sinewave that you use to trigger it with, you can for example put the high impedance/HV side of Microwave Oven Transformer parallel across your system, then very simple use the low impedance/LV side of your MOT to trigger this sinewave peak sensing circuit (over on the left side of the circuit where it needs 9V or so AC to feed into it) 
 but again, this is for switching mosfets, with a mosfet driver but maybe like mentioned, use those mosfets to switch SCR gates is my idea if you must use mosfets:
 If you want to have the positive sinewave cycle and negative sinewave cycle isolated from each other and independent to fill up separate cap banks, then use a half-bridge instead of FWBR, and make two of these circuits:
 

 https://sites.google.com/site/alternativeworldenergy/sinewave-peak-coil-shorting-circuits https://sites.google.com/site/alternativeworldenergy/sinewave-peak-coil-shorting-circuits
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