Thread: EDU Bot Power
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Unread 04-03-2004, 07:16
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Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
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Re: EDU Bot Power

Quote:
Originally Posted by Allison
can you power the edubot controller off the 7.2v battery charger without harming the controller
Allison,
You should never use a battery charger to power critical circuitry. All battery chargers are different in operation depending on the battery they are meant to charge and the method used to charge. NiCad batteries like to be constant current charged, that means that the charger is never putting out 7.2 volts except when it is connected to a fully charged 7.2 volt battery. Nicad chargers frequently output large current spikes and switch in a load resistance periodically to measure the battery condition. Bottom line is a charger is not a power supply. Between the controller and the devices you have connected to it, you have a big investment. Don't sacrifice you system.
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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Storming the Tower since 1996.