For 12 volts, 5 amps, and 6 to 8 cells, you'll most likely need some kind of boost converter. More, I cannot tell you, as our business is to make NiCd chargers for R/C race cars and such. But, you could check out the BenchMarq bq2004. Also, Circuit Cellar has a pretty good article on their web site right now about battery chargers. Peak Detect is easy; just watch the voltage and store the highest periodically. Then compare the voltage readings as they come in to the charger. If the voltage is greater, then store it as the new highest reading. If lower, then watch the difference. When it exceeds the peak detect point, stop the charge. You will most likely have to do some conditioning or averaging on the voltage input in order to escape noise problems. Mark ----- Original Message ----- From: "G Child" To: Sent: Sunday, December 03, 2000 12:21 AM Subject: [OT]:Nicad Charger > Has anyone had any experience making a peak detect nicad charger that will > charge 6 to 8 nicads at up to 5 amps from a 12 volt source. Any suggestions > would be greatly appreciated. > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body