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Registered Member #513
Joined: Sat Feb 10 2007, 07:30PM
Location: Pointe-Claire, Quebec, Canada
Posts: 19
From what I have read, the highest frequency you can efficiently use a diode at is 1/(10*Trr)
From:
Most microwave oven diodes datasheets state the Trr as greater than 500 ns (or don't even mention it at all...). Anyone have an idea how much greater than 500 ns?
Does anyone have any experience running MO diodes at higher than 60 Hz?
Registered Member #1225
Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
It would be nice to know what frequency you could run these, they would be great for ignition coil rectification if it could rectify efficiently up into the KHz. I know 1n4007 diodes can be used to rectify ignition coils, but they are faster than the MO diodes i presume. And then, im not sure what frequency i saw the 1n4007's being used, it could have been as low as 50Hz.
Registered Member #2941
Joined: Fri Jun 25 2010, 08:08AM
Location:
Posts: 143
I use 4 of those diode in serie to rectified the output of a ignition coil in resonance and they get very warm,I think the driver frequency was around 40 khz .the diode from smp microwave oven should work better...
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Reverse Recovery Time and Max frequency for microwave oven diodes
