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Author
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Topic: switching rectifier 101 question - efficiency
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Jim Henk
Master Film Handler
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Posts: 364
From: San Diego, CA
Registered: Feb 2006
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posted 05-25-2013 04:11 AM
I do know that regular high reactance rectifiers (transformer, bridge diode circuit, cap, voltage regulator) are about 50% efficiency. Easier to service, but hot, heavy, and maybe even more important, they run up your electric bill something fierce.
So I'm told that switching (or switch-mode) rectifiers are a lot easier on the wallet at electric bill time, and have gotten past the first models that had high failure rates. At least that's what I've been told.
Question: Really? What kind of efficiency increase are we really talking about? I know from my reading that the rate is not even all across the timeline, but can I get some knowledge from experience here? I'm already starting to check out a Super Lumex replacement for my Christie H-10 lamphouse, (I said *starting* to look, TB. ) and am wondering if I should replace my small Christie old-style rectifier (though it recently got refurbished with new wiring, all new diodes, etc) with a step forward while I'm at it.
Thanks.
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