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Electronics gurus, how to convert 12v to 15v
1 Attachment(s)
I want to know if anyone thinks this is possible to set up some type of inverter/capacitor setup that would take 12ish volts and jump it up to 15 volts constantly at around 10 amps or so without dropping a bunch of cash on a standalone box like speedwaymotors sells. It would be wired for momentary application. Basically like this,
https://www.miataturbo.net/attachmen...ine=1381891083 |
link to speedway motors box? I found another for $150 maybe a friend can help me out with a schematic... What does it operate?
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How accurate does the 15V have to be? Most alternators have a 14.4 V setpoint.
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Without any real knowledge of your application I'll say that 1A can be done quick and cheap, but 10A requires more substantial electronics which costs. If you can buy something off the shelf for $100 or $150 that comes with a warranty then it probably makes sense to go that route. Certainly something could be put together for less, but it would take an investment of time and effort.
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What you want is called a boost converter. Finding one that can source 10 amps that's off the shelf and with any sort of guarantee won't come cheap.
You could give this a shot: http://www.ebay.com/itm/Boost-DC-DC-...item4ac7d35fce |
It would be easier to hack your alternator to charge at 15.5V and regulate it down to 14 for the rest of the car.
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No it wouldn't. He only needs 10A @ 15.5V, whereas the rest of the car may demand >50A.
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Originally Posted by Jeff_Ciesielski
(Post 1064198)
What you want is called a boost converter. Finding one that can source 10 amps that's off the shelf and with any sort of guarantee won't come cheap.
You could give this a shot: Boost DC DC Converter Power Supply Step Up Module 10V 60V to 12V 80V 600W 10A | eBay |
This isn't hard.
The device Y8s linked to will work so long as you can guarantee that "12v" never rises above 14v. The device Jeff linked to will work so long as you EITHER can guarantee that "12v" will never rise above 15v, or you can tolerate excursions above 15v. Otherwise, you need a buck / boost converter such as this: CHB150W-24S15 Cincon | Mouser |
Originally Posted by Joe Perez
(Post 1064282)
This isn't hard.
The device Y8s linked to will work so long as you can guarantee that "12v" never rises above 14v. The device Jeff linked to will work so long as you EITHER can guarantee that "12v" will never rise above 15v, or you can tolerate excursions above 15v. Otherwise, you need a buck / boost converter such as this: CHB150W-24S15 Cincon | Mouser |
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