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How do I transform a power supply to other voltage value? Answered


Hi!
I need a 9.0 V AC  1.0 A power supply but despite I have a lot of power supplies around, no one has this values. The most I have are 12 V DC

I suppose there must be some method to lower or rise the voltage of a power supply to meet the required voltage. Also, the resulting power supply must be AC (I also have a 20V AC power supply if this is easier than converting from DC to AC)

Please, tell me what do I have to do.

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caitlinsdad

8 years ago

Just put "power supply" in the search box above. You'll see many instructables to build custom power supplies Variable voltage and AC/DC types. Good luck.

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jedikalimerocaitlinsdad

Reply 8 years ago

I tried, but couldn't find anything that suited my needs. :-(

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caitlinsdadjedikalimero

Reply 8 years ago

All the electronics people are out trick-or-treating but you need to search step-up transformers or variable power supplies or limiting power supplies and converting DC to AC. DC power is 1/2 the wave of AC power so you need to do some inverting and add that back to the power cycle.

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jedikalimerocaitlinsdad

Reply 8 years ago

That's because here in Spain we get dressed in carnival in Frebruary instead of Halloween.

BTW, I solved my issue. I opened the device and realized the first thing after the power plug was a rectifier Diode Bridge, so a 9V DC power supply does the work perfectly ;-)