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Electronic Equipment > Electronics Design > help with low c...
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help with low cost current detector

by "TT_Man" <Someone@[EMAIL PROTECTED] > Jul 3, 2008 at 08:44 AM

I need a simple/cheap method of detecting current ( battery charging). Max 
current is 500mA. All it has to do is turn on an led if battery is
charging. 
I did try just a simple resistor + transistor, but it gets too hot. Looked

at maxim high side current detectors but uses expensive lo ohm resistors
and 
maxim stuff is expensive and hard to get.
 




 10 Posts in Topic:
help with low cost current detector
"TT_Man" <So  2008-07-03 08:44:21 
Re: help with low cost current detector
Hammy <spamme@[EMAIL P  2008-07-03 09:41:40 
Re: help with low cost current detector
"Marte Schwarz"  2008-07-03 13:37:27 
Re: help with low cost current detector
"Frithiof Andreas Je  2008-07-04 22:37:16 
Re: help with low cost current detector
Paul G. <paulguy@[EMAI  2008-07-06 02:56:10 
Re: help with low cost current detector
"Paul E. Schoen"  2008-07-06 18:51:39 
Re: help with low cost current detector
JosephKK <quiettechblu  2008-07-08 19:37:21 
Re: help with low cost current detector
"Paul E. Schoen"  2008-07-10 03:02:46 
Re: help with low cost current detector
Jim Thompson <To-Email  2008-07-06 16:48:50 
Re: help with low cost current detector
cbarn24050@[EMAIL PROTECT  2008-07-10 05:05:35 

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tan12V112 Sat Nov 22 11:36:36 CST 2008.