Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: Mossen on October 22, 2010, 12:41:51 PM
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Hi,
This is more of a general electronics question rather than specific to robots, but I was wondering:
When you see an A/C adapter and it says "output: 3.6V-7.2V" what does that mean? Can the output voltage be adjusted somehow? How does it work?
This is what I'm referring to:
http://www.servocity.com/html/3_6-7_2v_nicad___nimh_peak_cha.html (http://www.servocity.com/html/3_6-7_2v_nicad___nimh_peak_cha.html)
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It means that the charger will charge batteries with varying cell counts, from 3 cell ( 3cell * 1.2 V/cell=3.6V) to 6 cell (6 * 1.2 = 7.2V). It will automatically adjust to your battery, usually.
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Hi,
This is what I'm referring to:
http://www.servocity.com/html/3_6-7_2v_nicad___nimh_peak_cha.html (http://www.servocity.com/html/3_6-7_2v_nicad___nimh_peak_cha.html)
That's not an AC adapter, it's a charger (large difference, although they look fairly alike).
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Yep. Although it contains the circuitry of an AC adapter you can't use it as a dc power source because there's a battery charging circuit standing between you and that raw energy.