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Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
I would use at least 1-2uF for these caps, when you have e.g. 20 amp primary current at 200kHz (mid-sized SSTC, assuming 230-240V mains), this will result in 72 volts AC across 220nF which can no longer be called DC block imo
Registered Member #2315
Joined: Tue Aug 25 2009, 02:35AM
Location: Leyte, PH
Posts: 161
uhmm like this?
There would be a "current path" for Q1 going to 0V.. but how about Q2? since it connected also to 0V..
btw, my mmc DC blocking caps seem OK now (warm but not HOT!) when I repositioned my breakout point to the "center top" of my torroid...streamers are more thicker than when the breakout point was at the "edge" of the torroid(the streamers where kinda thin and mmc dc blocking caps where HOT).. IMO was kind of inefficient?
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DC blocking caps
