Question by Chris S: Electrical Transformer?
My goal is to create a hand made transformer. I need to power an appliance that plugs into a standard 110v wall socket, but I need it to be mobile. I can power it by simply plugging it into the wall, but that defeats the purpose of what I am trying to do. I am working with a single, 12v Car Battery. I need to convert those 12v into 110v, and I need to do it safely. Being a Jr. in high school, I understand the concepts of a transformer, but not yet the practical application. I need to know things such as, "Is what I'm attempting to do even possible?", "If so, what type of transformer is both economical and will get the job done?". Links to more information would be best, but firsthand experience or knowledge would also be welcome. Answers to few other questions like, "How do I determine the number of coils?", "What materials should I use?", and "How do I make this safe?" would be helpful, but until I have a design, are relatively useless.
A brief overview of my questions, for clarity's sake.

1. "Is what I'm attempting to do even possible?"
2. "If so, what type of transformer is both economical and will get the job done?"
3. "How do I determine the number of coils?"
4. "What materials should I use?"
5. "How do I make this safe?"
A Description of the project.

A team in our school engineering lab is in the production stage of their hovercraft. It uses a small internal combustion engine as thrust, and a small leaf blower to both inflate the skirt, and force air under the craft. Their current plan is to simply use an extension cord to connect the leaf blower to a wall socket, but that defeats the purpose of the gasoline engine, which is only there to create self contained unit. A long term solution I am looking at is attaching an alternator to the horizontal drive shaft, using that to supply power for a battery, and that battery providing Direct Current for the leaf blower. However, from lack of an alternator, the battery will have to do.
Amps are a shaky area, seeing as I don't have access to the leaf blower itself, but I'm going to say between 7 and 12 amps. I'll find the actual number as soon as I can.

Best answer:

Answer by Drewfuss
you could of course go down to walmart and buy a power inverter. these are commonly available to power someones laptop in the car. the smaller ones just plug up to the cigarette lighter and then you plug in your regular house charger.
That is not nearly so educational as winding your own transformer, but it sure is easier.

Know better? Leave your own answer in the comments!

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