Pierre's 170W in 1600W out Looped Very impressive Build continued & moderated

[listener192]

There is always a connection to ground through one of the closed bottom relays. The BEMF voltage on a coil can be higher than the capacitor voltage, so current can still flow into capacitor.
PmgR

Yes, I just simulated that using relays (one section) and I got surprising recovery results, much better than semiconductor half bridges.

But that's only Falstad, (attached) really needs someone to confirm with Pspice.

Regards

L192

[jerdee]

I looked back through the last few pages, I see no chart like that.


http://overunity.com/17653/pierres-170w-in-1600w-out-looped-very-impressive-build-continued-moderated/dlattach/attach/167603/image//  translated from


https://youtu.be/vii6o20_Vv8?t=25s


There is never a time when 0 LEDs are on except step 0.
The first step, 2, 26, 14 are on.
step 24 (25) wraps back to the start...
https://youtu.be/vii6o20_Vv8?t=38s


that LED pattern and what's in original videos matches.
There is either an LED that's out, or a transistor that is blown so the LED doesn't have much voltage backing? or there's wires crossing in front of it that cause a shadow, but there is never a time when all LEDs are off.


( from here http://overunity.com/17653/pierres-170w-in-1600w-out-looped-very-impressive-build-continued-moderated/msg520053/#msg520053  )

Both you and mcharbonnl are NOT referencing the original code that was sent from Pierre.  mcharbonnl's vid shows the correct order of LED's blinking from Pierre's videos, however, when you take into account the audio from the video at 10% speed, you hear the double one and double off in the code.  You have to listen to the audio as well, not just look at the lights in the video! Go back to my earlier forum post and listen to the MP3 I attached.  Also, download the video, slow it down to 10%  and listen/look at the original code and compare.  You'll see.

When you review my PDF, you'll see that each "x" position is the recovery diodes as well!  72 recovery diodes for 36 poles, and 60 recovery diodes for 30 poles.  Everything lines up here.  The audio, video, the code, number of relays, number of recovery diodes.  The only difference is 36 pole vs. 30 poles.  Hope this helps.

Jerdee

[cheors]

This one with the original coding: 2 HIGH and 2 LOW steps

https://youtu.be/GigDdTppB10

x = 10 (pot to min)
x =200 (pot to max)

Not easy to see the all off step when x=10

[onielsen]

Hi Webby1,

Not only are metal contacts bi-directional they also allow for simultaneous events to pass through them, and they can offer almost no resistance.

Power MOSFETs are also bidirectional when in conduction mode. Because of the parasitic diode formed by the np semiconductor it is always conducting in the forward direction of the parasitic diode. This is in the opposite direction of the normal biased MOSFET. For a blocking bidirectional MOSFET switch use two MOSFETs with their sources connected together as well as their gates connected together. The drains are then the two poles of the switch. The saturation voltage is less than the forward conduction voltage drop of the intrinsic body diode.

Scroll down to just blow the center here for a schematic:
https://forum.allaboutcircuits.com/blog/controlling-an-ac-load-with-a-mosfet.518/

Regards
Ole

[seaad]

Can somebody solve this riddle?

Pierre; "the resistor is really hot"

1]  Check in first film at 2min. 40sec. Start the charging of the supercaps (4.6 Volt). About 0.5 Ampere from the 'wall' goes to the transformer.

2]  Check in film at 3min. 40sec. The supercaps 25.1Volt with 0 to 0.1 Amp in to the transformer.

3]  Check in film at 5min. 06sec. Arduino have just Start the program, The supercaps <25Volt while 1.5--2 Amps is Now feeding the transformer!!