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3935

16 Posts
Posted - 28 Feb 2002 :  11:49:05  Show Profile  Email Poster
Does the bitsy board have a hardware protection in case you wrongly connect the battery/DC power supply (Swapping + and -)?

akidder

1519 Posts
Posted - 28 Feb 2002 :  12:49:53  Show Profile  Email Poster
Yes, the main Bitsy power input (DCIN_POS, Bitsy J3.44) has a series diode for reverse-connection protection. However, the battery input (VBATT_POS, J3.38) does not.

If your customers might plug in battery power backwards, you should consider protecting the system yourself. One way to do this is to use a series fuse followed by a reverse-biased diode across the lines.



Drew Kidder
ADS Technical Support

Edited by akidder 31-May-2002: Corrected typo: J3.48 -> J3.38
Edited by akidder 8-Jul-2002: Add "series diode"
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woodrow

6 Posts
Posted - 31 May 2002 :  09:25:23  Show Profile  Email Poster
Is there a typo here? Should the battery input be (VBATT_POS, J3.38)?
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akidder

1519 Posts
Posted - 31 May 2002 :  10:02:11  Show Profile  Email Poster
Good catch. It's corrected now.
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