#70 in Battery chargers & accessories
Reddit mentions of Buck Boost Converter, DROK DC-DC Buck Boost Converter Voltage Step Up Down Regulator CC CV 5-30V to 0.5-30V Adjustable Power Supply Transformer Module
Sentiment score: 4
Reddit mentions: 5
We found 5 Reddit mentions of Buck Boost Converter, DROK DC-DC Buck Boost Converter Voltage Step Up Down Regulator CC CV 5-30V to 0.5-30V Adjustable Power Supply Transformer Module. Here are the top ones.
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- DROK buck boost converter input voltage range is DC 5-30V, output voltage range is DC 0.5-30V, output current of natural cooling is 3A, with strength sinking output current can reach 4A.
- Automatically Boost or Buck: no matter the input voltage is higher than 12V or lower than 12V, the voltage can be steadily output 12V.
- Constant Current: input any value within DC 5-30V, can directly charge storage battery, lithium battery, AA battery; besides, it can adjust LED brightness of constant current.
- Setting Value of Constant Current without Multimeter: using one-loop potentiometer with scale to set the constant current value will be more easy.
- Protective Function：MOS-input anti reverse protective, under-voltage shutdown protection, output over-current protection.
Features:
Specs:
| Size | 4A Regulator |
| Weight | 0.0198125 Pounds |
You're looking for a buck-boost converter. See here for an example.
OP won't want a boost converter. 15.6V in and 12V out means a fried camera since a boost converter can only increase the voltage.
You want a buck-boost converter. There are cheap chinese ones on Amazon and Ebay that work very well for small devices. Example. There are of course bigger and smaller ones depending on price. That specific one is probably overkill for a camera. If you want something nicer this is hard wired for 12V output.
this. to be safe i'd install a buck/boost converter to make sure that if you're under 12v you aren't browning out the device and if you're over volting you aren't blowing it up.
something like this would do it (and leave you overhead for other 12v devices to be powered since its 10x more amps than you need)
https://smile.amazon.com/DROK-Converter-Efficiency-Regulator-Stabilizers/dp/B06XG2KPTS?sa-no-redirect=1&th=1
Short answer:
You might want to get a 'sepic' or 'buck/boost' converter that will stabilize the output voltage. This is a model I've used before and worked well for a similar use:
https://www.amazon.com/Converter-DROK-Regulator-Adjustable-Transformer/dp/B06XG2KPTS/
This model also allows current limiting, but please, still use a fuse. :)
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The Long Reasoning:
If your devices are meant to be charged from a 'wall wart' AC style charger, there's a chance the device may be sensitive to input voltage variation. And since your battery voltage could be anywhere from around 10.5 Volts up to 14.8 volts... that might be a problem and cause damage to your equipment! Usually devices designed to be charged from the 12-volt socket in a vehicle are more forgiving, and often there's nothing more than a fuse inside that 'charger'. (Some don't even have a fuse! D:) But still, some do require very tight voltage regulation.
All that said, you could possibly get away with nothing, or just a fuse and some wire; But converter circuits are cheap now days, especially ones that only need to handle a few amps. And they can be the difference between killing some expensive equipment, and a perfect, efficient charging solution.
Obviously, ensure you have fuses as well both coming from the battery to the converter, and from the converter to the device(s).
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EDIT: Don't forget low voltage protection, if your system doesn't somehow already have it! Make sure you can't over-discharge your batteries accidentally!
> Do you have any cost reasonable solutions for a 1 amp +12/-12 power supply
Get two isolated buck converters from ebay or amazon. This is the most energy efficient way of doing what you want.