May 2, 2017 #1 perts Electrical Jun 30, 2004 39 0 0 US I have an application that requires a high rate current up to 8A for 1 second numerous times. Most primary cells are not rated for that high pulse current. Is there a way to overcome that. Could I use a capacitor in parallel to provide that current?
I have an application that requires a high rate current up to 8A for 1 second numerous times. Most primary cells are not rated for that high pulse current. Is there a way to overcome that. Could I use a capacitor in parallel to provide that current?
May 2, 2017 2 #2 IRstuff Aerospace Jun 3, 2002 44,345 4 38 US What do you mean by "not rated," as opposed to "not intended?" A typical AA cell can dump 10A in a short circuit. The main issue will be that its capacity will be substantially de-rated. LiPO batteries designed for high discharge RC applications are readily available: http://www.ebay.com/sch/i.html?_odk...TRC0.H0.Xlipo+50C.TRS1&_nkw=lipo+50C&_sacat=0 1 amp * 1 second = 1 coulomb time say 100 times and assume no more than 0.2 volt droop --> 500 farads TTFN (ta ta for now) I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvgfaq731-376 forum1529 Entire Forum list http://www.eng-tips.com/forumlist.cfm Upvote 0 Downvote
What do you mean by "not rated," as opposed to "not intended?" A typical AA cell can dump 10A in a short circuit. The main issue will be that its capacity will be substantially de-rated. LiPO batteries designed for high discharge RC applications are readily available: http://www.ebay.com/sch/i.html?_odk...TRC0.H0.Xlipo+50C.TRS1&_nkw=lipo+50C&_sacat=0 1 amp * 1 second = 1 coulomb time say 100 times and assume no more than 0.2 volt droop --> 500 farads TTFN (ta ta for now) I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvgfaq731-376 forum1529 Entire Forum list http://www.eng-tips.com/forumlist.cfm