 SSTC Capacitor in series with primary coil
|
|
|
Thomas
|
|
Thu Nov 12 2009, 11:26PM
|
|
|
Registered Member #120
Joined: Fri Feb 10 2006, 07:07AM
Location: Westchester New York
Posts: 83
|
Super quick question. The capacitor in series with the primary coil on SSTCs is there strictly for DC blocking purposes, right? Therefore shouldn't be a value which resonates like with DRSSTCs?
Thanks
|
|
Back to top
|
|
|
...
|
|
Registered Member #56
Joined: Thu Feb 09 2006, 05:02AM
Location: Southern Califorina, USA
Posts: 2445
|
Yes, make it much larger than the resonant capacitor.
|
|
Back to top
|
|
|
Thomas
|
|
Registered Member #120
Joined: Fri Feb 10 2006, 07:07AM
Location: Westchester New York
Posts: 83
|
So the capacitor is there to block DC and it's value sets Xc, right? So the size of the capacitor in effect will also change the LC's circuit's impedance, which affects the current drawn. Now the circuit's loop impedance is basically XL + Xc. Bigger capacitor smaller Xc...more current drawn. I see most designs around 1.3uF. Is that a good number for most full bridges?
Thanks
|
|
Back to top
|
|
Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob
|
|
Powered by e107 Forum System
|
