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Post by Gary Lecomte on Dec 23, 2008 18:56:35 GMT -8
And a Happy New Year.
Gary
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Post by Gary Lecomte on Dec 16, 2008 13:33:20 GMT -8
Hi All, I have joined today, although I've been to Gary's site many times, I'm impressed with the fence energizer design, been looking for something that can kick the hell out of criminals for a long time, in South Africa the crime is a nightmare. I'm in the gate motor business and also do designs for p.c.b's, recently started with PIC programming. My name is Llewellyn, Johannesburg, South Africa. All welcome to visit my web site also www.pruisgroup.co.za. Gary's site is my hobby playground for when I had enough of all my own greyhair designs, keep up the good work Gary, your designs is a breath of fresh air. Llewellyn Hi Llewellyn, Welcome to this Forum. Sorry but I didn't find anything of interest to me on your site. SEASONS GREETING to You and All Members! Gary
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Post by Gary Lecomte on Dec 11, 2008 10:45:22 GMT -8
But truthfully Gary, my PWM works fine, but I wonder, since my voltage source is fairly constant, why don't I just use a large (225 watt) 1 ohm resistor, and not worry about a PWM at all? I could parallel other resistors (say a 10 ohm) if I wanted more current than the 1 ohm would limit too. R=IxE would give me the voltage drop I need for a given current. I'm not anticipating cucking the PWM I built, just curious. P.S. how is the arm coming along and is it your main arm? C-ya, Ron. Ron, Its really whatever you want to do. But it isn't your Battery Voltage changing that creates the problem. Even if your battery voltage remains Constant, As the Cell gets Hotter, It's internal resistance goes lower, so it draws More Current. ** That make it get even Hotter. Using your resistor idea, Your Resistance is Constant, so it doesn't compensate for this, Unless you Manually monitor your current and appropriately change that resistor value as you drive. LOTS OF LUCK DOING THAT! (And "R= E*I", Doesn't apply in these cells, as the Cell resistance Is NOT Constant.) I just designed this up as a much better alternative.And Making Money on Any of my designs is Not an issue. I actually Lose, but I enjoy what I do. Even Better would be a PWM Current Limit, Via Temperature Control. I Can Now do that also, But the Temperature sensing, actually inside the cell, poses some problems. (Especially since Not all cells are constructed to make that easy.) Arm is Not getting Better, sometimes it much worse. My Doctor took X-rays of my lower back. (I had a Spinal Fusion about 35 years ago.) He wants to make sure that isn't a problem, Causing pinched nerves there. Gotta start somewhere. Take care....Gary
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Post by Gary Lecomte on Dec 9, 2008 18:56:52 GMT -8
Check out the Revised Ultimate PWM. Especially the Picture showing the Heatsink. At 25 Amps draw from a 12 volt car battery (into a 0.5 Ohm Resistive load), running at room temperature, the heatsink was Just Barely perceptively warm. www3.telus.net/chemelec/Projects/Hydrogen/Ultimate-PWM/Ultimate-PWM.htmIt is Now for sale as an Assembled PCB, Party Potted in Black Epoxy. No Schematic will be posted at this time. It is Presently Copyright protected, and Patent Pending. Mosfet Included, But Heatsink is Not Included. Price and more details to follow. Gary
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Post by Gary Lecomte on Dec 9, 2008 7:34:50 GMT -8
I have found one transformer on the dial-up modem, but wasn't able to find any data on it. Should I try it? I live in NJ, USA. You can try anything you want. But IF your driving this color organ from your Speakers, it could produce: "too great of a load and cause damage to your amplifier". If I were to Mail you out the transformer I recommend, it would take about 8 days to get to you. (Transformer is $3.00. Shipping cost is $4.00.) And I could mail it out today, in Advance of you sending the money. Gary
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Post by Gary Lecomte on Dec 8, 2008 19:27:15 GMT -8
I would buy it from you, but I need it really really soon. I was looking at other non expensive transformers, but they have cutoff frequency at about 300Hz, which is I guess not good. How Soon and where do you live? Gary
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Post by Gary Lecomte on Dec 8, 2008 16:16:23 GMT -8
"Properly Tune up the motor" Nah! Wouldn't be nearly as much fun........! Lookit me, lookit me now! I still can't get any milage increase with HHO..........but look at the fun I'm having! If I wasn't doin' this I'd be out doin yard work or other! :-D I Agree that Playing in Generating hydrogen is FUN. I Still play with it also. But more for the purpose of High Temperature H+O Tourches to melt metals.
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Post by Gary Lecomte on Dec 8, 2008 16:13:02 GMT -8
Basically you are correct. Most Auto Transformers are just a Single winding with a Tap on the winding.
The input voltage connects to one end and the tap. The Output connects to Both ends.
An Auto transformer can Double, Tripple or increase a voltage by almost Any amount.
Some Stun Guns also use Autotransformers for T1 and T2.
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Post by Gary Lecomte on Dec 8, 2008 15:55:28 GMT -8
For your Info, Near the bottom of this link, I have Added Two Links. Stun Gun Basics-1 (Basic Principals) And Stun Gun Basics-2 (A Real Stun gun and its Labeled parts) www3.telus.net/chemelec/Projects/Stun-Gun/Stun-Gun.htmAs to these: www.uoguelph.ca/~antoon/circ/hv/dazer/dazer.htmJust a Toy. capturedlightning.org/hot-streamer/kv2/kv2/hv/stun_gun/index.htmAlso a Toy www.youtube.com/watch?v=7eE-m9bUsqIDEFINATELY NOT 1,000,000 Volts. Maybe 50,000, but not much more. The Problem with a typical Multiplier to Create a Stun Gun is your output can be a Somewhat CONTINUOUS High Voltage, But at VERY LOW CURRENTS. (Well maybe not, If you use a Car Battery and Big Multiplier.) (I have one which will create 100KV. A proper Stun Gun Steps up the voltage/Current and Stores it in a Capacitor. It than Pulses it to a second transformer, to give out High Voltage and relatively High Current, "Short Bursts of power".
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Post by Gary Lecomte on Dec 7, 2008 15:40:55 GMT -8
Thank you. That really helps. I plan to make audio transformer from the small transformer I found in cellphone charger. What is the least amount of windings do I have to make? I have tried to make one already but the ratio of voltages on both windings was not constant Don't Bother! Making a Suitable Audio transformer is More difficult than Power transformers. Either But one from "Goldmine as Rmeyn Said", Although I'm not sure if its Suitable. Or get the PROPER One from Me!
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Post by Gary Lecomte on Dec 6, 2008 7:35:22 GMT -8
Simple, Go to My Projects Page for the Schematic.Hello. I am not an expert, so I have a question (for participation). Question is about the power supply in "color organ in home" that is based on zener diode. Usually resistor is placed in series with load before the zener diode, but I see only D1 and C17 instead of a resistor. Can anyone explain how it works? Also for what purpose C14 C15 C16 are used in the circuit? Does polarity matters in tantalum capacitors? How to distinguish tantalum and regular capacitors? Can I use regular capacitors instead of tantalum? Thanks a lot. C17 Acts as a "Capacitive Reactance". At 60 Hz and .47uF, it has a reactance (Effective Resistance) of 5,644 Ohms, so at 115 volts, it passes about 20 mA and No heating problems like a resistor. C9, C10 and C13, as well as there associated Diodes create Voltage Doublers. R5 & C14 R9 & C15 R13 & C16 The capacitors here, All perform a Filter to give a better DC voltage to the gate of the SCR. The resistors just loads the circuit so to not maintain that dc voltage for a long period and better follow the varying incoming signal. Tantalums are usually a "Tear Drop Shape". Tantalums Have a Polarity. And Unlike Electrolyte capacitiors, the Line on Tantalums is POSITIVE, (Not Negative like electrolytics.) ** What IODIOT Decided That, I'd like to know! Tantalums Caps have a Much Lower ESR than Electrolytics. (Effective Series Resistance) "Also a Much Lower internal current Leakage". Yes Regular Electrolytics will Work, But Tantalums are Better. Hope this Helps!
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Post by Gary Lecomte on Dec 6, 2008 7:03:35 GMT -8
I'm expectation with your Ultimate PWM Control becouse I been using H2O2 to cut down my $ and to reduce pollution. But the current is high to 25A .Be distressed me long time.weak point is my battery short life. Sorry but I will get to that Ultimate PWM, as soon as I can. And Although its not as good, Zerofosselfuels Design Does work. And Also Remember: PWM reduces Current, So it Also REDUCES Hydrogen Production. Well my Personal Opinion is:If you Removed the Hydrogen stuff and took your car to a "Reputable Mechanic" to "Properly Tune up the motor", it would Probably do Just as much in saving you money and reducing polution, as adding that Hydrogen. Maybe even more so. Gary
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Post by Gary Lecomte on Dec 4, 2008 20:59:38 GMT -8
Hey Gary I am relatively new and learning quickly about Hydrogen generators. I was wondering if you have made any progress on your ultimate pwm, I am really interested in trying the unit out. I have been experimenting with many designs of generators and the simplest design seems to be working the best so far. The simple design seem to produce more brown gas but are much more effective and require much less space. I am designing a new design that looks to be very promising from the preliminary results. ** Hydrogen Generators were around LONG BEFORE "BROWN" WAS! I Don't know Why anyone would consider it "Brown's gas"? I did this stuff 51 years ago. Maybe it should be "Gary's Gas"? But it was also done many years before that. It should be Propery called "2H2 + 02". ** PWM Doesn't Increase Gas production. Usually it does the Opposite. It ONLY helps in Controlling Current. ** Eventually. ** OH Well, I can't really help it! Sorry but I am having problems with my right arm. Making Everything Really Difficult to do.
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Post by Gary Lecomte on Dec 3, 2008 19:33:52 GMT -8
I don't see Any PCB Diagram or Schematic with those links!
Just your Home page on both.
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Post by Gary Lecomte on Dec 3, 2008 15:30:22 GMT -8
Thanks for your reply Gary. The more I look at this your idea of heating water and be darned to the batteries sounds better every day. My girl is complaining about the cost of wiring, then the electronic, then the batteries,,,etc...Maybe a smallish glycol tank with pump to circulate through small rad - fan combo...this could heat a small building ... I saw somewhere that the can govt was giving some grant funds to those who were going solar to water heating. That does not include wind....hmmm Well, maybe I can have a bit of both..a couple of cheaper car batts that are constantly topped off...no deep cycling..just lights perhaps or emergency power until we dig out the gas gen. Gary; with your injury I imagine any charge controller is in the future sometime, not to mention you are a busy man... Uh....regarding the inverter discussion, I have come across a big older type battery charger.. once I have its case opened I will see about using it in the inverter plans unless this is a no no. ..let me know what you think..maybe pictures will help.... Thanks Keith It would be more productive at this time, if you emailed me your phone number to discuss this. Typing is a Pain. Gary
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