Aboutcleggsan Expertise All technical areas of Electronics Engineering.
Experience BSEE, MBA, Design, R&D, University Research.
Senior Life Member of IEEE. Life Fellow of AES.
Organizations IEEE, Consumer Electronics Society, Audio Engineering Society.
Broad teaching experience; work experience mostly in consumer electronics and conversion from analog to digital technologies. Pioneer in digital audio at all levels.
Question I'd like to make an extrernal battery pack for my digital camera. Something I can take in the field and would last longer than the two AAs inside. My idea is to use a battery holder with 4 AAs. What would you recomend for a voltage regulator for such?
The camera is a Canon Powershot. I tried using a 3.3vDC AC adator but it wouldnt work. I wonder about that ...
Answer I don't understand why you would need a voltage regulator. Batteries are already voltage regulated!
Why don't you use a high capacity battery pack and/or rechargeables?
But always use batteries that are compatible with the camera or else you are asking for trouble.
Tell me more; I need the model number and if you are using recharge batteries or throwaways... Then I can be more specific for your solution.
But, there is nothing wrong with using a 4 pack - or even a ten pack so long as you keep the voltage the same. I assume the operating voltage is the two AAs in series for 3.2 volts. If you use 4 batteries then two of them are in series and two in parallel so you get the same voltage.
The ac adaptor you were using probably doesn't keep the voltage up; they have too much ac in their output.
