Jul 14, 2011 #1 digi001 Full Member level 5 Joined Apr 5, 2011 Messages 244 Helped 22 Reputation 44 Reaction score 21 Trophy points 1,298 Activity points 2,904 Looking for manufacture of good caps for a Inverter Power Supply Design. Need to find some in the 440VAC-650VAC range 15A-50A. Searching through Digikey results turn up mostly Film Caps in 3 Categories (Pulse, Motor Run, DC Link). I should probably rule out Motor Run Caps but anyone have experience using DC Link caps for this type of AC Application?
Looking for manufacture of good caps for a Inverter Power Supply Design. Need to find some in the 440VAC-650VAC range 15A-50A. Searching through Digikey results turn up mostly Film Caps in 3 Categories (Pulse, Motor Run, DC Link). I should probably rule out Motor Run Caps but anyone have experience using DC Link caps for this type of AC Application?
Jul 16, 2011 #2 A atripathi Advanced Member level 1 Joined Dec 2, 2009 Messages 450 Helped 91 Reputation 182 Reaction score 88 Trophy points 1,318 Location INDIA Activity points 3,818 Try for polypropylene or polycarbonate capacitor.
Jul 16, 2011 #3 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 53,110 Helped 14,792 Reputation 29,871 Reaction score 14,291 Trophy points 1,393 Location Bochum, Germany Activity points 301,071 I would mainly look at manufacturers web sites, e.g. EPCOS, Facon SPA, KEMET - The Capacitance Company By intended application, motor run capacitors aren't made for high frequency currents, respectively very high currents at all. Pulse or DC link fits better, also snubber capcitors. For highest AC currents, GTO capacitors are outstanding.
I would mainly look at manufacturers web sites, e.g. EPCOS, Facon SPA, KEMET - The Capacitance Company By intended application, motor run capacitors aren't made for high frequency currents, respectively very high currents at all. Pulse or DC link fits better, also snubber capcitors. For highest AC currents, GTO capacitors are outstanding.