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kasari
05-19-2009, 05:53 PM
Hello,
I have a newbie question. Thanks in advance.

Anyway....Are there any benifits to adding a PWM inline of my ATX power supply Thats feeding my Cells?
I guess what i'm tring to ask is...will adding a pwm inline of my ATX PSU minimize
my incoming amps without reducing my needed output amps?
I'm think in turne of a variable frequency drive...it kind of is the same thing isn't it?

Thanks

Kasari

HHO BLASTER
05-19-2009, 07:09 PM
Don't use a computer supply with a pwm you will force the computer suppy to shut down.

Build a suppy from free parts start with a old microwave this will work for what you need you can ajust to what voltage you want, plus it's good for 100 amps way more then you need

ask and i will repost again how to do it

kasari
05-20-2009, 07:08 PM
Please, Please, Please!

Thank you in advance.

HHO BLASTER
05-21-2009, 11:41 AM
Please, Please, Please!

Thank you in advance.

What's your AC power 120 volts or 220 volts? Are you in the US

kasari
05-21-2009, 04:51 PM
I have both 120 and 240. Yes, I'm in the states.

HHO BLASTER
05-21-2009, 09:22 PM
I have both 120 and 240. Yes, I'm in the states.

Ok now find the biggest, oldest, and heaviest microwave, then pull the cover off and let me know, so we can go one step at a time.

Gary

Mulenson
05-21-2009, 10:09 PM
Spell Check? Hmmmm!

HHO BLASTER
05-22-2009, 10:21 AM
Spell Check? Hmmmm!

What's your point?

HHO BLASTER
05-22-2009, 01:01 PM
Spell Check? Hmmmm!

Your off topic, unless you can talk about what this thread is about, stay away and play your silly games someplace else

Gary

kasari
05-22-2009, 01:55 PM
way to go Blaster.

I will have to get a microwave before we get in ti this.
might take a couple of days.

Thanks

HHO BLASTER
05-22-2009, 08:14 PM
way to go Blaster.

I will have to get a microwave before we get in ti this.
might take a couple of days.

Thanks

Try your town dump, goodwill, free cycle

If you get stuck I can sell you one that is already modified and rewired, and all you have to do is hook up the diodes and a cap, if you want to adjust the voltage that can be done using a light dimmer I use a magnetic light dimmer tied into the primary of the microwave transformer this supply can also be used as a welder, and a car battery charger, and even start the car with it, so what you will have is something you would never want to throw away you can also use it so it only puts out between 1.5 to 3.5 volts @ 140 amps way more then you could ever need

Try and buy a supply that can do that, and expect to pay about $5,000 to $8,000 there just is not much call for very low voltage high current supplies

Gary

kasari
05-23-2009, 08:43 AM
Goin Yard Saleing.................:D

Thanks again Blaster. Do you have a tutorial on this so I don't have to keep bugging you?

kasari

HHO BLASTER
05-23-2009, 12:10 PM
Goin Yard Saleing.................:D

Thanks again Blaster. Do you have a tutorial on this so I don't have to keep bugging you?

kasari

No i don't mind the bugging, its good for me, it forces me to improve on it, that's what i need a little push, i get lazy and i need to be pushed

Plus i know for every post here, there are a 100 readers who can learn, and maybe we can even improve on what i have. "which is a good thing"
Thanks for the push Gary

kasari
05-25-2009, 11:03 AM
will this solve my dry cells heating up and blowing my atx power supplies?
It happens after about two hours of run time.

HHO BLASTER
05-25-2009, 01:14 PM
will this solve my dry cells heating up and blowing my atx power supplies?
It happens after about two hours of run time.

It should give you 28 amps all day long plus the microwave comes with a fan the above stove type come with a HD squirrel cage fan that can really blow air save the atx for parts you can use the heat sink in there and a large cap

you will need to buy this part its only $5 bucks

http://www.allelectronics.com/mas_assets/image_cache/height.500_width.500_modified.1237373195.1768.FWB-352.jpg

Its good for 35 amps you can put two together for 70 amps

kasari
05-26-2009, 11:12 AM
Thanks again, when I have these parts I will get back with you.

kasari
05-26-2009, 06:09 PM
Hi Blaster,

I have a microwave transformer and the cap. 5 bucks at GoodWill
I have ordered the bridge rectifiers. (two)

HHO BLASTER
05-26-2009, 09:18 PM
Hi Blaster,

I have a microwave transformer and the cap. 5 bucks at GoodWill
I have ordered the bridge rectifiers. (two)

What's the current rating on the diodes???

If you didn't place the order on the diodes yet get a 5,000 ufd cap. It will increase your output voltage plus clean up the ac ripple you can find one in side your computer power supply plus a heat sink you should also grab the ac fan in the microwave post a picture of it

kasari
05-27-2009, 08:51 AM
I ordered 2 MB352's so they are 35 amps. I will extract the fan and post picture tonight. I took the old cap. form the microwave. Don't have it here in front of me so I dont know the uf. I will check tonight.

Thanks

Will I be able to use a PWM with this to control the cell's current?

HHO BLASTER
05-27-2009, 09:18 AM
I ordered 2 MB352's so they are 35 amps. I will extract the fan and post picture tonight. I took the old cap. form the microwave. Don't have it here in front of me so I dont know the uf. I will check tonight.

Thanks

Will I be able to use a PWM with this to control the cell's current?

Yes, that is only about 1ufd, its big because it can handle over 2000 volts you need at least 2,000 ufd at 50 volts

That cap can kick you in the ass, if it is not discharged, maybe kill you just put a screw driver across the terminals

Gary

kasari
05-27-2009, 09:44 PM
where can I find one of these caps?
mouser electronics doesn't list one.
5000 ufd @ 50 volts

HHO BLASTER
05-27-2009, 11:10 PM
where can I find one of these caps?
mouser electronics doesn't list one.
5000 ufd @ 50 volts

Use 5 or 6 of these in parallel

http://www.westfloridacomponents.com/SME177PD/820uF+63V+SMT+Aluminum+Electrolytic+Capacitor+ECEV 0JA821P.html

HHO BLASTER
05-27-2009, 11:16 PM
where can I find one of these caps?
mouser electronics doesn't list one.
5000 ufd @ 50 volts

They got them but there listed as 4700ufd i rounded it off sorry, because its not very important a little higher or lower

I hate there site its confusing to use for me

kasari
05-28-2009, 08:22 AM
yeah, It is alittle confusing.

kasari
05-31-2009, 07:53 PM
Hi Blaster,

Parts I have aquired.

1) MOT
2) MB352
3) 4700ufd CFap.

Can't wait to make something...Whats next?:D

Thanks

HHO BLASTER
05-31-2009, 10:01 PM
Hi Blaster,

Parts I have aquired.

1) MOT
2) MB352
3) 4700ufd CFap.

Can't wait to make something...Whats next?:D

Thanks

Please take some pics of the MOT, and i will get back ASAP

Please read this thread again

http://www.hhoforums.com/showthread.php?t=3559&highlight=MICROWAVE

kasari
06-01-2009, 03:52 PM
Hi Gary,

Can I add pics to this thread?
I will read through this thread.

thanks

HHO BLASTER
06-01-2009, 04:18 PM
Hi Gary,

Can I add pics to this thread?
I will read through this thread.

thanks

Here's what you can do put them on photo bucket then you will have a embed file you copy that, then click on insert image in this post tool bar that will give you a pop up, say allow, then hit insert image again paste the file info there and that should let everyone here see what we are doing i'm sure their are others who can learn how to do it

Gary

kasari
06-02-2009, 06:31 PM
Gary,

Here are those pics.....I hope.

Are these close up enough?

http://i613.photobucket.com/albums/tt218/kasari/th_Picture6-1-09028.jpg http://i613.photobucket.com/albums/tt218/kasari/th_Picture6-1-09029.jpg

HHO BLASTER
06-02-2009, 07:15 PM
Hey.....It worked:D

Of course it worked good job, please give me a bigger and closer pics

kasari
06-02-2009, 07:35 PM
Here Ya Go.....

http://i613.photobucket.com/albums/tt218/kasari/mot1.jpg http://i613.photobucket.com/albums/tt218/kasari/mot2.jpg http://i613.photobucket.com/albums/tt218/kasari/mot3.jpg

Took the liberty of cutting out the secondary.

HHO BLASTER
06-02-2009, 11:42 PM
Great job that's the worst part, Your good, remove these to make more room for thicker wire number #10 is ok #8 is better. Some have better insulation for heat i have been using aircraft mil spec wire but you should look around you will need about 12 feet give or take use more and cut back

http://i601.photobucket.com/albums/tt99/HHO_BLASTER/untitled.jpg?t=1243999819

HHO BLASTER
06-03-2009, 02:10 AM
<a href="http://s601.photobucket.com/albums/tt99/HHO_BLASTER/?action=view&current=BRUTEFORCECKTBLOCK-1.jpg" target="_blank"><img src="http://i601.photobucket.com/albums/tt99/HHO_BLASTER/BRUTEFORCECKTBLOCK-1.jpg" border="0" alt="Photobucket"></a>

kasari
06-21-2009, 09:51 AM
Hey Blaster,

Sorry I haven't posted in a while. Summer weather is real busy for me. I'm a commercial HVAC service Mechanic. Anyway I have been doing some testing though. These rectifiers get pretty warm:). I added a heat sink and a cpu fan and that helps alot. making pcb now and will post some pics soon.

Transformer is working great.

Thanks

kasari
06-21-2009, 12:56 PM
Are you sure I cant use these Caps Due to the voltage?

My secondary voltage is 15vac, so my rectified dc is about 12.6.

the first caps you said to use, the voltage is only rated at 6.3 volts.

http://www.mouser.com/Search/ProductDetail.aspx?qs=tRzVlScAa5pMQ1q0s1eycw%3d%3d

HHO BLASTER
06-22-2009, 12:43 AM
are you sure i cant use these caps due to the voltage?

My secondary voltage is 15vac, so my rectified dc is about 12.6.

The first caps you said to use, the voltage is only rated at 6.3 volts.

http://www.mouser.com/search/productdetail.aspx?qs=trzvlscaa5pmq1q0s1eycw%3d%3d

sorry i didn't see that use some thing at least 50 volts break open some old computer monitor lots of good caps in them

Your DC voltage will be a factor of your load how much current your drawing, measure it with and with out a load