Is it possible to make an AC to AC converter which will give 150V when supplied with 3.5V?

Question

I want to know whether it is possible to make an AC to AC converter which will boost the voltage to 150V when it is supplied with 3.5V but there is a restriciton in terms of weight, where the maximum mass should be about 3g. Is it possible to make something like this?
Do you know of any companies which I can contact about this device?

Answer 1

Best Answer - Chosen by Voters

Theoretically a spep-up transformer with n2/n1=3.5/150
turn ratio will do the job.

Source(s):

Electrical Machinary and Transformers ,by
Irving L.Kosow

Answer 2

An example for your application is a camera flash where two AA size cells (1.5 x 2 = 3 Volts) drive an inverter to make around 400 Volts which is then rectified and stored in a capacitor. This is DC to DC converter.

In your case, since AC to AC conversion is required, please give details of input frequency given to the converter and the AC current and frequency required at the output of the converter.

The lower your current and higher your output frequency requirement, the less will be the volume and weight, but I think 3gms is a bit too far fetched for this kind of application.

Answer 3

the smallest commercial transformers, designed for audio use, can achieve this transformation but weigh in at about 20 grams. 3 grams is just not possible.

now if you happen to have a source of 300 volts DC available, then a Texas Instruments TIP 50 transistor can use the 3.5 volts to control a 150 volt ac swing in the collector circuit. This is amplification, not transformation. the TIP 50 is also available from Fairchild semiconductor

Answer 4

Mike Davi...What you want is a transformer.
The winding turns ratio is 42.857....for that combination
of input to output.
Also for this transformer, not knowing the output current
needed, for 1 amp @150VAC output, the input amperage
@ 3.5 VAC is 42.857... amps. This is approximate, not
accounting for transformer efficiency.
It won't be small, or lightweight by my definition anyway.

This can also be done with digital circuitry. Would be way
more expensive than a transformer.

Here is the Google search page result for
[ac to ac converter]
http://www.google.com/search?hl=en&q=ac+…

This one, 4th down from page top:
AC To AC Converter Manufacturers & Suppliers To AC
Converter Manufacturers ★ by Global Sources ★
http://www.globalsources.com/manufacture…
Has (34)AC converters. I clicked it and went here:
http://www.globalsources.com/manufacture…
They have what appear to be transformer units.

Google search[electric transformers]
http://www.google.com/search?hl=en&q=ele… transformer

Then went here:
http://www.powertran.com/pdfs/PT.1-Phase…
At the page bottom is this Phone number 248-399-4300

The Wikipedia page is interesting:
http://en.wikipedia.org/wiki/Transformer

Lots to look at on the search pages.

Hope this helps.
Wingman

Answer 5

probably not possible with that weight restriction.

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