Keith is 100% correct. The base of Q2 would need to be at the same level as Va in order for it to switch off. 0.6v or more below Va would mean that it's biased on.
You will find that in its current form Q2 is actually always on.
Trent Jackson
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Keith is 100% correct. The base of Q2 would need to be at the same level as Va in order for it to switch off. 0.6v or more below Va would mean that it's biased on.
You will find that in its current form Q2 is actually always on.
Trent Jackson
Last edited by T.Jackson; - 8th April 2007 at 15:07.
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I'll try that solution as soon as i can and get back to you to see if it worked out. but everything seems logical thanks.
jose
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The NPN Transistor driving R3 works fine. thank you all for your help it is greatly appreciated!
jose
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if you put a resistor on the battery for a short period you can decrease surface charge a lot and get an even more accurate reading (closer to actual charge held) on the battery
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