rj1939
Stainless
- Joined
- Jan 31, 2008
- Location
- southern il
Is there any reason why I couldn't use a 1000v bridge rectifier for 120v useage? I have one on hand. Amp rating is plenty high for the application too.
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Is there any reason why I couldn't use a 1000v bridge rectifier for 120v useage? I have one on hand. Amp rating is plenty high for the application too.
One more question: Should I put a capacitor across the two DC terminals, I have read that bridge rectifiers have some spikes on the DC side and capacitors are used to smooth it out a bit?
And thanks for the replies.
One more question: Should I put a capacitor across the two DC terminals, I have read that bridge rectifiers have some spikes on the DC side and capacitors are used to smooth it out a bit?
And thanks for the replies.
Is there any reason why I couldn't use a 1000v bridge rectifier for 120v useage? I have one on hand. Amp rating is plenty high for the application too.
Will the part last longer at much less stress than it can withstand? Any opinions from the in-house PhD's about difference in reliability? Pronounced as rrrrreeeeellllliiiiiaaaaabbbbbiiiiillllliiiiitttttyyyyy.
MOV will work also, of course.
Spec'ing one is actually a little more "interesting" than it seems, since MOVs have resistance and they do not really have a hard limit on voltage the way a zener does for instance (and zeners also have the same effect, just less so).
If you want to use an MOV, pick one somewhat higher (say 30%) than the voltage it will normally see, and no more than (if possible) half the voltage limit on the thing to be protected.
MOVs also have the fun feature that their voltage decreases a bit every time they get "hit" with a transient. So the buffer amount over the normal voltage basically buys time.
The load, is a winding for an electric clutch.
BS....... "However, it can add up to a couple hundred of milliseconds to the decouple time of the clutch, as it allows the magnetizing current to continue circulating with minimal resistance, slowing the collapse of the field"........ The free wheeling diode will shunt the rev flow and drop the voltage like a rock, the drop out time will be decreased , same circuit I used for big scrap magnets for drop out....Phil
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