Author Topic: Fuse Blown??  (Read 2339 times)

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Offline sdavis6736Topic starter

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Fuse Blown??
« on: January 11, 2009, 07:46:07 PM »
I have been using an 18V power supply while my robot was on the testing bench and all was well.  When I attached the robot to its battery supply for fields testing the fuse blew to the motor controller as soon as it started up.  I understand the surge current issue, but shouldn't it have blown when using the power supply also?  Why does this happen?  Any suggestions on how to fix this problem?
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Offline TrickyNekro

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Re: Fuse Blown??
« Reply #1 on: January 12, 2009, 03:41:20 AM »
It's maybe your power supply can not deliver high current... cause batteries usually can...
Get a bigger fuse and test.... :)
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Offline Admin

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Re: Fuse Blown??
« Reply #2 on: January 14, 2009, 11:29:03 AM »
Most benchtop power supplies max out at 1 or 2 amps. Your battery was probably giving out a lot more.

A fuse blows based on current.
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