Raspberry Power DC Power Supply

A recent discussion by Robin Gunning (Raspberry pi powersupply change from micro usb to dc power plug) led me to investigate the feasibility of creating a board allowing a DC power jack to be connected to the Raspberry Pi.

I have created my first ever Eagle Schematic but would appreciate some feedback on the suitability of the design and any comments/suggestions you may have for improvements or potential pitfalls.

The aim is to have a 26-way extension header so that shields can be added on top of this board. The 26-way header should also be compatible with the 40-way header on the newer plus editions of the Raspberry Pi.

Thanks

Paul

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Former Member over 10 years ago

If you are really into bread boarding the power supply, I've had good luck with these tiny switched regulators (http://www.pololu.com/category/131/step-down-voltage-regulators). I mount them onto the bread board when prototyping, or solder onto the circuit board when the design is complete. I can hardly build one from scratch for the price of these switched power supplies on a breakout. Also note, that the input voltage on these is quite high, allowing for use from a car electrical system with all it's over voltages. There are also step up and step up/down which are great for battery use. Good luck.
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gadget.iom over 10 years ago in reply to Former Member

Thank you for that!
Will give some of those a try. Hoping to find a supplier here in the UK as delivery costs more than the modules themselves
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gadget.iom over 10 years ago in reply to Former Member

Thank you for that!
Will give some of those a try. Hoping to find a supplier here in the UK as delivery costs more than the modules themselves
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Problemchild over 10 years ago in reply to gadget.iom

If you are in the UK you can easily get the 5V 2-4A supplies that CPC do:
http://cpc.farnell.com/ideal-power/25hk-ab-050a400-d5-1/psu-desktop-5v-4a-3-pin-iec/dp/PW03335?in_merch=Products%20From%20This%20Range&MER=e-bb45-00001003
£9.23 less on a bargain day and will power your Pi all day with what ever extra bits you throw at it and no additional regulators required ...Simples!
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srinivasansmv over 10 years ago in reply to Problemchild

thank you nice answer
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