Nice I'm using a PC PSU as a power suply to! Works fine for use in small chlorate/perchlorate cell's.

Each IC chip that controls those power supply has few feedback lines. Those lines are easy to trace out because they are connected to +5V and +12V and they are divided with a simple resistor divider to IC chip. You can disconnect the +12V and experiment witch the resistors in the divider for +5V. Then the +5v is not only stable because of the feedback but also you can regulate that voltage from 2V to 8V witch is handy. This resistor divider is also grounded from one side so it is easy to find.

The idea of few phases in SMPS is used on each PC mother board to create stable voltage for CPU core. It can have up to 10 overlapping phases. If you just connect 10 SMPS parallel it will work but you have no idea of how it is controlled and witch SMPS gives pulse of charge (energy) to the main capacitor at what time there for the ripple voltage may be a problem. It have to overlap in fixed controlled fashion and this is my next home project and I am using MCU and SMPS parts to do it.

very interesting ! do you have a schematic for the changes you made?

Yes I do have a question. Can you walk me through building the power supply use in your perchlorate video? Great video by the way

so, it is necessary to have a shunt on this? and a resistor? i could make some fairly easy but if it is not necessary, i wont. i figure the resistor is the most important. too many amps flowing out could fry it right? i could make a nice power supply like this but i need to know what all i need to do before i start.

Well the duty can be different from 50% it is not a problem the IC uses the feedback divided voltage to adjust the right PWM duty for different voltage. If you need less then 30A you can use the ferrite transformer as it is. If you want to go higher you have to remove both +12 and +5V windings to make room for thicker +5V windings. Also put additional filter capacitor if you draw high current. The voltage ripple is nothing if you compare it to linear power supply. The type of SMPS you have is.

@ytmachx and do I connect the red wire to the "anode" (platinum coated electrode) and black to the cathode?

thank you for reply! even though i used even a 12 volt 10 watt light bulb it is just shutting down so i tried changing the load by using two 12 ohms 10watt attached in parrlel between 5 volt wire and ground then also it is shutting down so i changed the load from 5 volt wire to 12 volt wire and i used a load of 22ohms 10 watt resistor then also it is shutting down and iused some combinations of resistors but they also worthless .So i checked out for short circuting but there is nothing.

Since I'm using a computer fan as my load, and I had problems with keeping the temp of the solution from recrystalizing the KCI.... What do you think of using the computer fan as a magnetic stirrer during electrolysis?

im just trying to figure out how many amps my system is consuming also, I hooked up a car charger to it @ 6 volts and it would do 12 amps easy, was making out the battery charger easy on 50 amps, Do I have to have a load on the computer power supplies to have them put that out?? ie the light bulb running

Is ATX type with means it has two SMPS inside. The small one is always turned on and gives +5V standby and +30V something volts for the IC. When you short the green wire with GND you are starting the IC witch starts driving the main big power supply. It is very good idea to connect few SMPS in parallel to one filter capacitor for huge power with no voltage drift. But it works best when the PWM ratios are overlapping in phases just like few cylinder engine and I am working on such SMPS now.

@ytmachx I moved the electrodes closer, the current has increased (app. 2A) but not too much! So what can I do to use all the 26 A ?

You just take those 3 terminal schottky diodes from other SMPS from +5V rail and connect them in parallel on bigger heatsink. One diode can hold from 20A to 40A so with four of them you can not go wrong and big power supply use that technique. The only problem is the winding on transformer. Well it needs to be removed and changed and you can use bigger transformer from bigger power supply so it will be cooler. The voltage ratio is usually 1 turn 1 volt and at stable load the PWM is 50%.

@ytmachx I tried with red and it's not bubbling like what I see on your videos :( Yellow gives me a lot of bubbling but overheats really quickly and almost destroyed my titanium cathode red gives off 5.5 V right?

@ytmachx what can i do to reduce voltage losses and increase amperage ?

Which side gets the positive the platinum electrode?

Well the power is 350 W so above that the PWM from controller goes over 85% or so and is turns the supply off. You can draw entire power just from one rail. For 5V it means 70A if you regulate the voltage to 3V it is 115A for 7V it is 50A and so on. The power limits when the IC will cross the maximum PWM duty and it will turn off the power. Well SMPS gives you output voltage that depends on number of turn in secondary and on the PWM duty. Of course for higher current you have to use more diodes.

Thank you for the video. The only purpose for the shunt is to measure current, correct? Help me understand why you would limit current flow with the resistor, except to simulate a cell. For chlorates, would the best option be 5V/13A? What is the minimum V/A combination for any power supply needed to produce perchlorates?

what kind of ps do u recomend for a perchlorate cell and how much would it cost im willing to buy a pretty good ps

is a light necessary when running the cell because it needs to sense load? i would imagine it doesnt need to have it on the cell because the load it will sense is the solution in the cell. am i correct?

thx buddy Ill get back to you :)

i found an old computer lying around that doesnt work at all. but the power supply is good. i went through and cut all the connectors and grouped all the wires by color exactly as you did. i will start chlorate production on monday. that is if my cell doesnt melt. im going to look for a good glass cell. or make one out of pvc.

@greatkid1 i can get it to run from the -12 and -5 volt lines, but the current from these lines are poor for a chlorate cell

Hi, i have just given this ATX mod a try, but the powder supply shuts down every time i try and run a globe off any of the power lines, do you have any thoughts on why it might be doing this?, also did your power supply have any sense leads for the 3.3v line ?

@ytmachx Thanks. I'll give it a go.

Hey cool cool stuff man. I was wondering if you could recomend any good chemistry books for a novice. Im very interested in chemistry as a hobby and would love if you could recomend some good reads. Thanks.

Can you do a step by step tutorial on how to set this up, and how to figure out the amperage. As well as Hooking it up to the electrode and cathode I the cell. I have only a basic understanding of electronics, and at the end of this video I was getting kinda lost on how to arrange and select the correct amperage going into the cell. Thanks

very little, now should I make my cell on the positive side and run a 200 watt light bulb on the back end of it to pull more amps through it or is that none effective? I used roughly 6 pounds of potassium chloride for the 5 gallons of water, any help would be nice :)

hey, I have a computer PSU .we can read on it 5v at 26 A.I installed an Ampermeter in series with the cell it indicats 1.24 Amps when the circuit is on!!!!??? Any explanation

Im confused, does the green wire attach to the negative?

You could get another one and hook them up in series then you'd have 10 volts at 12 amps, good for perchlorate

Which exact colored wires are positive and negative?

hey!ytmachx i have old pentium 4 supported ATX power supply and i used a dummy load resistence of 4.7 ohms and 10 watts between 5 volt red wire and ground black wire and when i on the power supply it is running and as soon as i connected it to a chlorate cell it just shut down. can you tell what mistake i have made?

So to be clear 5V for chlorates and Anything above 6V for perchlorates or at max 7V? Also how do you know when chlorates and perchlorates are done?? Sorry for that much questions i have... Thanks for your reply

@ytmachx thanks

So which color do you use for your chlorate cell?

mine is power by 600 watts 5v 32Amps power supply and when running it is only supplying 4.3 Amps max to the cell...i read it using dc current clamp meter....

can you tell me more about these calcultations? Also if i calculate the efficiency wrong and my potassium chlorate is impure(with potassium chloride) How can i purify it (can i with recrystalisation?) I am really into for making chlorates....

i have 12 volt 150 amps power supply could i use it

What gage nichrome wire did you use?

@ytmachx

9 жыл бұрын

***** It is actually AlNiFe Aluminum/nickel/iron. it is approx 12 gauge

OK i dont get it!! For chlorates you need 5V at 15A? And what do you need for a perchlorate one? Great video btw!

this is what i should do. i have a old spare computer that is really slow and almost useless.

if i use this for a perchlorate cell and i leave it to fun like 200 hrs..would it convert NaClO3 to NaclO4?

@DaveSmith-cp5kj

7 жыл бұрын

Only way to truly know is to try...

@ytmachx

7 жыл бұрын

It may, if everything is reasonably correct.

@MrAbbyandlilly

7 жыл бұрын

so i found a simpler version that works well...i just used two power supplies instead...taking from the 5v and running it for 10 days....made perchlorate and not a bad yield. amperage didnt cross 9 amps.... plan on running it with 3 power supplies next time to send up the amperage

So 500 grams give or take per gallon is too little?

my power supply gives me 5 v and 50 amber how can i lower the amber to 25

Ok so I did 3 300 watt pc power supplies in a parallel circuit, each rated at 20 amps for the 5 volts power line.. The question.... My cell Is a 5 gallon bucket im using 14 electrodes total to help with keep wear down. The bucket is nice and toasty near the top half, and cool on the bottom, when I do a resistance test through my cell i get 2.9 milli,

Means this that there is no way to make Kclo4 with 5 Volts and how fast graphit electrode corrided I think it woulden't be so bad if one would only Last for 1 kg apollogize my horrible english Hope u can help me thanks

where could i get mmo

I have a several power supply. The problem is when I connect it to the bath the voltage drops down and sometimes amperage... to solve the problem need bring close electrodes together and in some case the electrodes need place far from each other.. I don’t who people manage to hold it to the exact point..

@ytmachx

3 жыл бұрын

You need better supply voltage

@ytmachx Are all others positive?