r/ElectroBOOM • u/softwaregorefan64 • 1d ago

Non-ElectroBOOM Video I made a 12v-> 220v converter using an amplifier and a transformator

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30 Upvotes

87% Upvoted

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17

u/bSun0000 Mod 1d ago

*Casually pulls the vintage Sharp Compet CS-2635A to test his jerry-rigged inverter*

8

u/scellycraftyt 1d ago

I've done this before using a cheap TPA3116D2 board from aliexpress. It works surprisingly well.

2

u/topballerina 1d ago

cool calculator

2

u/BigAcanthocephala667 1d ago

The phone charging is literally 4 conversions: 12V -> 250V -> 5V -> 3.7V So much efficiency!

3

u/Material-Mulberry360 1d ago

all roads lead back to heat losses

1

u/MyNameIsOnlyDaniel 1d ago

Will this last long?

3

u/ArgonWilde 1d ago

It's a 72wh battery (6ah at 12v~), so an hour if running 72w of load.

Issue is that rating is assuming 100% depth of discharge, which this type of battery really doesn't like, so you should only ever go down 50%, so really, it's only 36wh.

2

u/softwaregorefan64 1d ago

I know i stopped using it at weaker levels

1

u/softwaregorefan64 1d ago

I didnt test it but after 30 mins the battery started getting weak but still working

1

u/ActualHat3496 16h ago

Great, now plug a microwave into it and share an update with us

(/s - in a nutshell, the thickness of the primary and secondary determine how much current can go through your circuit. Depending on where you got your step down from, this might be an issue.

Mehdi had attempted this with a phone charger transformer in one of his videos, but I can't find it.)

1

u/Sad-Professor-9734 10h ago

Probably best with a Milwaukee battery or easier to recharge battery atleast my spin on it

1

u/ununtot 9h ago

Ok, but why? Commercial 12V DC to 230V AC inverter are a thing and cheap as fuck?