On Saturday, June 16, 2012 06:38:10 PM Jon Elson did opine: > gene heskett wrote: > > Your idea of triple chipping the driver is an excellent one, but needs > > a storage capacitor directly across the chip(s) supply pins, 2" of > > pcb trace away won't cut it. Its got to be right there on those 2 > > pins, and a capacitor per chip is probably a very good idea. > > Yes, I put a 1 uF cap on the back of the board directly under the driver > chip. One for the > low-side driver and logic, one for the floating high-side driver. I've > been using this general > topology since 2004 or so in my brush servo amp designs. > > Jon > Sounds like I've got a skuttle, carrying coal to Newcastle. :)
Cheers, Gene -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) My web page: <http://coyoteden.dyndns-free.com:85/gene> Philogyny recapitulates erogeny; erogeny recapitulates philogyny. ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
