#119 Building the PWM v2, part 5 of 5

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Repairs and final testing of the new current limiting PWM.

Category:

Science & Technology

Tags:

• PWM
• Pulse
• Width
• Modulator
• MOSFET
• Current
• Regulated
• Electronic
• DIY
• HHO
• hydrogen
• electrolysis
• alternative
• energy

[jimodrap]

z GOOD JOB . the r12 connection on the board, I didn't see it when you turned over the board is it connected at the junction of the trim pot and the cap? when you do the next one could you take a pic of the bottom to show that connection. thanx again.

[ZeroFossilFuel]

R12 is very clearly shown in the photos at the web site.

[williameelliott]

Hi zero on your schematics you show 2 rectifier diodes D1 and D2 but ob your vidio I can only see one that(in comparing to your schematics) I would assume is D2. Where is the other one

[ZeroFossilFuel]

Directly on the cell. It's really a leftover from a diagram for controlling inductive loads like DC motors. You cam probably just omit that one.

[bagrmanhd]

I have read many a posting that have suggestions on the proper freq but I think that it will depend a lot upon the design of the cell. Thoughts?

[LTharle]

Zero, Have the drawings and board layout been corrected on the web page? If not what pots values need to be swapped?

[UnityEnergy]

Zero, I take it the other hole in the box beside the red input terminal is for the negative, with a realization that the earth/ground on the other side does the job anyway?

I suppose this is still prototype learning to iron out all the little things like that.

Thanks for the full round of your lessons you learn on the way. Many a lesser man would have edited over them all and seemed to be perfect ;)

[UnityEnergy]

perhaps you a listening 90 degrees out of phase, try your Babel fish in the other ear, and turn down your music

Cheers

[UnityEnergy]

thanks Frank

The New Zealanders, as we say, those across the trench (Bass Strait), pronounce their I's and E's in reverse to most of the rest of us.

Their national bird is the KIWI, and we and they call them KIWIs. (kee-wee)

In Star Wars Clones movie, the actor's accent was that also.

Seems the females of our species like foreign accents. Perhaps it's natures way of expanding the gene pool.

Tho I am partial to women with foreign accents too, so it goes both ways.

A strange & wonderful world ;)

[r06u3AP]

Solder wick is OK but sometimes the only way to get the solder out is with a sucker. But they do require maintenance to keep them working effectively.

[ct1600]

United, your spelling is correct here in the US too. :)

Frank

[gbrcl]

Z,

Forgive my ignorance, July 4th's revelation of the cell being an oscillator peaked my interest as I have long thought that resonance was a key element. Wouldn't this require some mods to the PWM ?

Bless you for your noble efforts !

GBRCL