Hi Gene, Have a look at the DC-03 Digispeed that I design and sell. It converts a PWM signal into an isolated control voltage, and has quite small form factor.
http://www.homanndesigns.com/store/index.php?main_page=product_info&cPath=1&products_id=21 If your PWM signal has a base frequency of 1K or above, have a look t the DC-05 digiSpeed http://www.homanndesigns.com/store/index.php?main_page=product_info&cPath=1&products_id=38 Cheers, Peter On 15/03/2014 7:23 AM, Gene Heskett wrote: > Greetings again; > > After putting in a diode, that part seemed to work, but this C41 seems to > have gone south again. (and again (and again)), and its looking like a 4th > one has failed. Symptoms seem to be an output impedance in the 100k > region, making 375 rpm maximum, and dropping nearly 100 rpm when I put a 10 > megohm digital meter on its output to measure it, and getting a hair over 5 > volts for my trouble, and a fresh LM358 in the output voltage follower > stage acts exactly like the one I pulled out thinking it was bad. > > So it looks like I need another, but it seems to me there ought to be > another choice besides this non-linear POS, and the PMDX-106. Or, do I > fire up eagle & design my own? > > The PMDX-106 works great, but its physically too big for the area it needs > to fit in by about an inch both ways. > > Anybody else got any suggestions? > > Thanks guys. > > Cheers, Gene > ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/13534_NeoTech _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
