How to select 12V / 5V power supply for my circuits?
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| Barrel Jack adapter |
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| Micro USB adapter |
Most of the circuits including arduino powered circuits need a 5V power supply. It is good till we develop a board to use the USB power from computer / laptop. Once the development is complete we need a standalone power supply. for this you may need an power adapter, of-course an USB charger will also do the job. If you need a Micro USB connector you can buy it from robu.in. This board a little quality board over the other green color board.
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| AC DC Power Module |
In some cases we want power supply to be housed inside a box, then external power adapter may not be the choice, for this you will get a SMPS module for 3.3V, 5V, 12V from Sunrom. These power supplies are modular and those from HiLink are good but little costly than the open board ones.
If you decide to make your own power supply you can start with the Viper12 / Viper22 IC from ST micro electronics. These IC's are cheap and available in local market. ST provides reference design for both isolated and non-isolated supplies.
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