Stan Meyers Digital Control Means
Digital Control Means Board Only $60.00 U.S.
Digital Control Means Board Populated $88.75 U.S.
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Populated boards Do Not come with External Switches or Pots
This circuit has two pots, one for adjusting the primary coil voltage amplitude and another for adjusting the pulse voltage amplitude of the pulsing during the 'Gate' time.
There are four options for driving the primary coil.
1. Gate time high-Current flows through primary coil during gate time
2. Gate time low-No current flowing through primary coil during gate time
3. Variable pulse voltage amplitude during gate time (via P2)
4. Continuous pulse frequency
Both high (resonant) and low (gate) frequencies are provided by a FeelTech function generator which provides independent frequency, duty cycle, and sweep functions. The drive circuit, function generator and VIC coil are all powered by a Ryobi 18V battery and a programmable power supply as seen in previous videos. Here you can get the Multisim and image file/schematic
BradK-Hybrid VIC Driver-April 2020.ms14 - 211.53 kB, downloaded 6 times.
Explanation of the circuit I made to get variable amplitude pulsing during the 'Gate' time. In this video I stated I made this circuit for the PLL but forgot I actually made it after Ronnie (GPSSONAR) mentioned it was necessary to get the cells working.
I'm going to be building this circuit again and I'll start running tests on it, once I get it working I'll probably make a PCB and if all goes well I'll share it here and on the forums.
I forgot to mention but for the HF and LF pulsing I use a dual channel frequency gen that has adjustable duty cycle and bias as well as a sweep function. With this setup the circuit is adjustable in every way needed.
Extremely Important Note
The Following Explains how the inital interconnect work on the vic matrix
Can you tell a bit more on what point (M, M1, J, A) connnections
in the circuits the yellow and
blue (duty-cycle) scope traces are measured showing in your video?
I think I know, but I'm not sure...
yellow is (to primary coil TX1) and blue (M, M1)?
They is one (J) output from the analog voltage generator that is connected to the digital control means card.
That is the signal that you see going up and down.
They are several outputs of the J signals that comes out the Digital control Means board.
If you look at Stan's actual Digital control means card you will see it has i think 4 or 5 (J) outputs on it, that goes out to different circuits.
One (J) goes to the voltage amplitude for the primary.
Some of the J outputs goes to other cards.
The (M) on the digital control means card is the signal that is fed into the analog voltage generator which produces the J signal.
(M1 through M4) goes to the injector cards which is the signal that you see going back and forth which controls the injection (on) time and other things.
the yelow scope signal comes from the analog voltage generator which is tided to digital control means,meaning build everithing just for a simple offset.Anyway I managed to ''foul''the J input by buildind a voltage devider coming in the J input,Without that the ''gain pot'' is locked.Dont know why but the offset pot is adjusting the voltage from 2v to 11.45v,and the gain pot is adjusting the same voltage but in a short range of 2v.How your circuit works ?
which pot does what?
The digital control means board has nothing to do with (J) it only has 5 additional outputs on it from the analog generator board. The analog board sets on top of the digital board. In other words one J output from the analog board, and that one output is fed to 5 pins on the digital board as outputs. Like the photo below.