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Unread 21-09-2005, 17:55
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Re: Additional basic stamp servo power supply

Quote:
Originally Posted by sanddrag
I think you should put the 4 AAs in series for 6v nominal.
A 7805 regulator isn't going to work very well with only 6 volts of input, and even with a "low dropout" regulator instead, the input voltage will eventually drop below 5 volts as the cells are used. To get a steady 5v supply, the suggestion to use six of them in a 9 volt configuration is more appropriate.

sparksandtabs might be able to get away without a regulator, though. The HITEC servos we use are very happy running off the unregulated 7.2v backup battery.
 


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