220->12V inverter - Page 1
Forum section: electronics / general

author: TheGrave
author_rank: Contributor
timestamp: January 28, 2019, 10:29:39 am
content: Hi,I want to power up a 12V 8A car vacuum machine for cleaning a small room in the house. Struggling to find reputable brand 220->12V inverter (I guess it's not a big market). So far only 2 hits on eBay that do not inspire much confidence:https://www.ebay.co.uk/itm/253807275900https://www.ebay.co.uk/itm/180W-AC-220V-DC-12V-15A-Car-Cigarette-Lighter-Power-Converter-Adapter-Inverter/232176331228Has anyone seen a decent inverter that can be trusted? I'm thinking at least 12A DC output.Cheers

author: Bratster
author_rank: Frequent Contributor
timestamp: January 28, 2019, 10:34:23 am
content: You'll probably get better results if you look for 12 volt power supply, the term inverter generally applies going from DC to AC, whereas you're looking for the other way aroundMeanwell is a pretty decent brand.Since you're running a motor load I'd probably look for a 15 amp power supply or thereabouts.motors take a lot more current to start and a smaller power supply might shut down.Sent from my Fi Moto x4 using Tapatalk

author: Psi
author_rank: Super Contributor
timestamp: January 28, 2019, 11:33:56 am
content: +1 for meanwellI forget who but one of the main distributors has good prices for meanwell psu, might be mouser

author: mariush
author_rank: Super Contributor
timestamp: January 28, 2019, 11:45:59 am
content: You could just use a regular ATX power supply.You can turn it on without a pc, by connecting the PS_ON pin to ground with a wire...The yellow wires are 12v, ground is black... you can use either the wires in the atx 24 pin connector, or you can use a pci-e 6pin connector (you have 3 pairs of 12v + gnd wires there) or you can hook into the molex connectors.

author: NiHaoMike
author_rank: Super Contributor
timestamp: January 28, 2019, 01:54:04 pm
content: Assuming you don't already have an ATX PSU lying around, just get one of those HP server PSUs.

author: Benta
author_rank: Super Contributor
timestamp: January 28, 2019, 05:34:54 pm
content: 12 V, 200 W power supplies are available as sand on the beach. Your using the term "inverter" has probably thwarted your search.You could probably just use a car battery charger.

author: TheGrave
author_rank: Contributor
timestamp: February 20, 2019, 09:30:57 am
content: I have a battery charger lying around but the problem is (also with the suggestions above) I need to power a male cigarette socket of something that needs to move around so non-insulated hot wires not an option.

author: Zero999
author_rank: Super Contributor
timestamp: February 20, 2019, 11:01:58 am
content: Something like the device you found on ebay would be ideal. It just needs to be capable of more than 8A: 10A would be idea.https://www.amazon.co.uk/dp/B01J5BMRNM/ref=sspa_dk_detail_0?psc=1&pd_rd_i=B01J5BMRNM&pd_rd_w=hpzj6&pf_rd_p=454d2892-a6d1-488a-b5c1-57058b38bc92&pd_rd_wg=xhAn1&pf_rd_r=QZPPZ6R7X8WN77XGK6TV&pd_rd_r=0ee44874-34fe-11e9-ada2-01ebb7eb8475https://www.amazon.co.uk/Voltage-Converter-Adapter-Cigarette-Transformer/dp/B019H2EQWY/ref=pd_lpo_vtph_­1­0­7­_­t­r­_­t­_­2­?­_­e­n­c­o­d­i­n­g­=­U­T­F­8­&­a­m­p­;­p­s­c­=­1­&­a­m­p­;­r­e­f­R­I­D­=­Q­Z­P­P­Z­6­R­7­X­8­WN77XGK6TVhttps://www.amazon.co.uk/Shentian-Power-Adapter-Cigarette-Converter-Black/dp/B071NP6Z33

author: Red Squirrel
author_rank: Super Contributor
timestamp: February 21, 2019, 04:35:20 am
content: If the vacuum is for a car chances are it takes 12v DC and not AC, so you don't want an inverter but just a power supply. I don't think 12v (out) inverters are that common, as they would be a rather niche application.