Power distribution. Total maximum current = (100+150+250+.13+10+50)mA = 560.13mA.

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Presentation transcript:

Power distribution

Total maximum current = ( )mA = mA

Battery research for 9v ChemistryBattery numberCapacity at a 500mA discharge rateDatasheet site AlkalineEN22300mAHhttp://data.energizer.com/PDFs/EN22.pdf Alkaline522300mAHhttp://data.energizer.com/PDFs/522.pdf Carbon Zinc1222N/Ahttp://data.energizer.com/PDFs/1222.pdf LithiumLA522600mAHhttp://data.energizer.com/PDFs/la522.pdf Rechargeable NH22-17N/Ahttp://data.energizer.com/PDFs/nh pdf *Image taken from Typical Weight 45.6 grams *Image taken from

Battery research for C-cell 1.5V *Image taken from ChemistryBattery numberCapacity at a 500mA discharge rateDatasheet site AlkalineEN935000mAhhttp://data.energizer.com/PDFs/EN93.pdf AlkalineE935000mAhhttp://data.energizer.com/PDFs/E93.pdf Alkaline mAhhttp://data.energizer.com/PDFs/3-335i.pdf Alkaline 3-335NNC5000mAhhttp://data.energizer.com/PDFs/3-335nnci.pdf Carbon Zinc mAhhttp://data.energizer.com/PDFs/1235.pdf Rechargeable NH mAhhttp://data.energizer.com/PDFs/nh pdf Typical Weight 66.2 grams *Image taken from

Battery research for D-cell 1.5V *Image taken from ChemistryBattery numberCapacity at a 500mA discharge rateDatasheet site AlkalineEN958000mAhhttp://data.energizer.com/PDFs/EN95.pdf AlkalineE958000mAhhttp://data.energizer.com/PDFs/E95.pdf Alkaline mAhhttp://data.energizer.com/PDFs/3-350i.pdf Alkaline 3-350IW8000mAhhttp://data.energizer.com/PDFs/3-350iwc.pdf Alkaline 3-350NNC8000mAhhttp://data.energizer.com/PDFs/3-350nnci.pdf Alkaline 3-350W8000mAhhttp://data.energizer.com/PDFs/3-350wc.pdf Alkaline A9N/Ahttp://data.energizer.com/PDFs/A95.pdf Carbon Zinc mAhhttp://data.energizer.com/PDFs/1250.pdf Rechargeable NH mAhhttp://data.energizer.com/PDFs/NH pdf Typical Weight grams *Image taken from

Advantages/disadvantages BatteryAdvantagesDisadvantages 9V High supply voltage Very low overall efficiency Low efficiency per weight (7mA/gram) C-cell Maximum efficiency per weight (75mA/gram) Low supply voltage D-cell High efficiency Low supply voltage Heavy Low efficiency per weight (54mA/gram)

The winner? C-cell non-rechargeable battery!! – With 6 batteries in series, power supply time will be 6+ hours. Total weight of C-cell batteries will be 397g(14oz) Same number of D-cell batteries would be 888g(31oz) 16 9v batteries would be needed to provide same amount of battery capacity which would be 730g(26oz)

The winner? C-cell non-rechargeable battery!! – Size of battery pack will be approximately 6”x2”x1” (WxLxH) – Approximate cost of battery pack will be $12.50 *Price of batteries were found at Count/dp/B0044DA3NS/ref=sr_1_1?ie=UTF8&qid= &sr=8-1http:// Count/dp/B0044DA3NS/ref=sr_1_1?ie=UTF8&qid= &sr=8-1

Total maximum current = ( )mA = mA 3.3V maximum current consumption = 50.13mA 5V maximum current consumption = 510mA MAXIMUM CURRENT/VOLTAGE DIVISION

Voltage regulators LDO regulator vs Standard regulator – Voltage drop required to maintain output voltage regulation LDO requires least voltage Standard requires the most