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Author Topic: Need advice in load label detecting  (Read 2567 times)
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sohel
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« on: September 13, 2007, 08:18:52 08:18 »

i have design for load label. anything wrong with this circuit? 

 Huh
thanks
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twonuts
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« Reply #1 on: September 16, 2007, 10:13:04 10:13 »

What circuit?

Upload your schematic drawing.
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sohel
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« Reply #2 on: September 16, 2007, 05:50:23 17:50 »

What circuit?

Upload your schematic drawing.

i have already uploaded.
http://www.sonsivri.com/forum/index.php?action=dlattach;topic=5264.0;attach=514
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ppa88
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« Reply #3 on: September 16, 2007, 06:17:55 18:17 »

Sohel, can you please specify what exactly you are trying to do in this circuit ? How do you expect it to behave ?
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sohel
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« Reply #4 on: September 16, 2007, 06:52:02 18:52 »

i want to use it for solar charger and controller , if i use this block for detect load label then it will work at real hardware? i am using pic 16f72 with lcd display for showing parameter. batt label, solar panel label , load label, and also with sun tracker(not use at this moment) . have u any idea for that type of project. thanks
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ppa88
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« Reply #5 on: September 17, 2007, 05:24:09 05:24 »

By the terms "load labeL, solar panel label, batt label' , do you mean "load current, solar panel current and battery voltage" ?  In the schematic , you are sensing the voltage across R2 which represents the current drawn from the battery. Then you are using a voltage divider to take a sample of this voltage and producing analog sample using an opamp amplifier. I feel this circuit can work to sense the battery current.I feel it will work better accuracy if R2 is reduced further (at the cost of wattage).
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