gibsonrockin247

I have a question for you guys. I am new here but need help in a controll circuit. I need a dc circuit that starts with 12vdc, I want to step it up to 1000vdc, with less than 10 amps. Is this possible at all? I would like it to be a variable system from 12 -1000 vdc. This is for an automobile Hydrogen system, so it would need to be as small as possible. I can take a regular 12vdc alternator and remove the regulator I get 10 amps 100volts, Not enuff to get enuff hydrogen to operate what the engine needs . It helps in fuel savings but not where I need it to be. It will also needs a pulsing circuit from 0-10 khz varible to tape the resonance of tape water. It would be best if this were a step up voltage circuit. Like 600-700-800-900-1000. Or any varible in the range specified. Like 400-500-600-700-800-. Am I just dreaming or is any range of high voltage possible withoutr the amp? Can I put a choke in the line to knock the amperage out?

audioguru

You are dreaming.
1000V at 10A is a power of 10kW! A car's alternator is only 1kW and for short durations.
Are you going to haul a huge generator around?

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Uncle $crooge

gibsonrockin247

I hope not, That is what i was afraid of. What is the most voltage You think I might be able to get out off a regular car alternator and battery system without smoking it.

audioguru

You need lots of POWER.
A little piezo lighter makes a very high voltage, but hardly any current because its power output is low.
The alternator has a max power rating of 1kW for short durations.
The alternator for a huge truck probably has a much higher output power.
Then you need an inverter to stepup the voltage.

The alternator and inverter get hot. The heat is wasted power. The system might waste more power than it produces from hydrogen.

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Uncle $crooge

gibsonrockin247

I have found a alternator from blue wind that is for a wind generator. I will put out 360 volts at 2500 rpm 15a -40a on the motor. It would be as you were refering to as the big truck alternator. But it really is not enuff yet to get were i need to be. Thanks for the help I will keep going maybe I will fall into it if I keep trying. I can go to that type of alternator but I would like to find a system that doesn't require that I redesign the whole car to get at least a 50% increase in miliage. I look at this as I am driving anyway and If I can increas the milage to an acceptable level the pull on the alternator really doesn't matter. We are at about 20% increase in miliage right now. But if I can ever get to 50% that would be acceptable as a real hydrogen ad on for not very much money. Depending on how much the electronics cost. What is this peizio light you are talking about? Thanks again Gibbs

audioguru

A piezo lighter is a butane lighter. You push its trigger that clicks as a little hammer hits a piezo crystal which makes a spark with about 10,000V.

I save a lot of gas by not driving much.

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Uncle $crooge

gibsonrockin247

I agree that is the best idea yet, drive less save fuel. Really! that little lighter puts out 10.000 volts. I wonder how that is done. I have been looking for info on this lighter from some companies and can't seem to find much except they want me to buy lighters. But It is only important if I let it be. Thanks for the info man. gibbs

Hero999

When you press the button it compresses a spring until a catch is released firing a metal pellet at a piece of piezo crystal.

Google for piezoelectricity.

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mneary

Assuming you can find a generator to produce your 10kW of electricity, it will be taking upwards of 20 horsepower from your engine.

Hero999

He didn't say how long he wanted 10kW for.

Using a 100W SMPs to charge a large capacitor in 100 seconds could produce 10kW for 1 second.

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gibsonrockin247

Well I may have found a circuit that I was looking for. A company from off the net makes them. Not sure if they can make what I really want . They make a electronis voltage increaser that puts out 500- 1000 vdc units.

Imput 9v-36
current 6.2-1.6
500v
50ma
They also make them in 1000 volt dc 8000 vdc from 12-36vdc But not much amp output. 100khz. Going to call them monday and see if they can custom build them to my specs. Oh by the way the company is American Power Design. Thank for your help guys . I am still interested in the peizo igniter, I am checking on them also, Of off a infared natural gas heater but needs varible step up pulse from 0-10khz with a 50% duty cycle.

audioguru

[quote=gibsonrockin247]Well I may have found a circuit that I was looking for. A company from off the net makes them. Not sure if they can make what I really want .[quote]
They take your money and laugh at you. Try to sue them to get your money back. They will change their name and your lawsuit will do nothing.

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Uncle $crooge

Nigel Goodwin

[quote=audioguru][quote=gibsonrockin247]Well I may have found a circuit that I was looking for. A company from off the net makes them. Not sure if they can make what I really want .Are you having a bad day?, it's not like you to reply to a two month old post?.

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Misterbenn

when you say a Hydrogen system do you mean your doing the standard fule cell make energy from water thing using electrolysis? If so you only need 1.27V and a high current, not 1000V!

Also you should know you cant get out more energy than you put in...basic law of physics

dknguyen

True, but the difference lies in the energy you can take with you, and the energy you can't...so you'd have to make they hydrogen offboard then load it onto the car.