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Registered Member #2838
Joined: Fri Apr 30 2010, 07:55PM
Location: tehachapi, CA
Posts: 333
My concern is the flyback hv output frequency. Will the higher frequency be an issue? I dont have an oscope to test frequency and this is a bit above my level of knowlege...
Also, what is the main difference between the sf1600 and uf4007 other than voltage?
Registered Member #2838
Joined: Fri Apr 30 2010, 07:55PM
Location: tehachapi, CA
Posts: 333
Thank you everyone! I think that I will go with the SF1600's and give them a try. Thanks patrick for spotting the fact that the uf4007's are not avalance rated. I didn't notice that.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
one thing that pisses me off is that none of the 1n4007 diode makers list a trr, they just state 50/60 cycle curves. but i always asume they are slower than molasis.
Registered Member #2838
Joined: Fri Apr 30 2010, 07:55PM
Location: tehachapi, CA
Posts: 333
Patrick wrote ...
one thing that pisses me off is that none of the 1n4007 diode makers list a trr, they just state 50/60 cycle curves. but i always asume they are slower than molasis.
i know exactly what you mean! I looked through atleast 10 different datasheets before giving up on them!
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
the microsemi quotes 2.0 uS for trr at 0.5 Forward current, Ir 1.0 amps, Irr 0.25 amps, 2uS is slow as shit compare to a 50kHz square wave of 20uS. lets say 10uS up 10uS down = 20uS, well 2us is 20% of 10uS, therefore it heats up and blows shit.
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High voltage rectifier
