Harold, What is the National part number? (low side) Does it handle AC? Thanks in advance. David -----Original Message----- From: Harold Hallikainen To: PICLIST@MITVMA.MIT.EDU Date: Wednesday, April 21, 1999 8:15 PM Subject: Re: Measuring Large (1A-7A) Currents ? > Also have a look at National. They have a new current sense chip (high >side and low side available) that measures 7 A. It has an internal sense >resistor in the milliohms. It outputs a PWM signal that is proportional >to the current (with 50% representing zero current and deviation from 50% >representing negative and positive current). I'm looking at using it as >part of a "pwer tracker" for charging batteries from solar panels. > >Harold > >On Sun, 18 Apr 1999 10:47:15 -0400 "Larry G. Nelson Sr." > writes: >>Take a look at Maxim. I just used a high side sense circuit from them >>to >>detect charging levels in a medical equipment docking system. >> >> >>At 08:34 AM 3/15/99 -0500, you wrote: >>>Is there an easy way to measure currents in the range of 1A-7A. The >>>circuit in question is for part of a constant-current battery >>charger. >>>Accuracy and precision isn't too important - measurements to 1/10 of >>an >>>amp are sufficient. >>> >>>Thanks, >>>Jim >>> >>> >>Larry G. Nelson Sr. >>mailto:L.Nelson@ieee.org >>http://www.ultranet.com/~nr >> > >___________________________________________________________________ >You don't need to buy Internet access to use free Internet e-mail. >Get completely free e-mail from Juno at http://www.juno.com/getjuno.html >or call Juno at (800) 654-JUNO [654-5866] >