AeroElectric-List Digest Archive
Sun 06/04/23 |
Total Messages Posted: 2 |
Today's Message Index:
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1. 04:45 PM - OVP (over-voltage protection) circuit changes (Finn Lassen)
2. 07:41 PM - Re: OVP (over-voltage protection) circuit changes (user9253)
Message 1
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Time: 04:45:58 PM PST US
From: Finn Lassen <finn.lassen@verizon.net>
Subject: OVP (over-voltage protection) circuit changes
I've successfully been using this in my RV-3B and now RV-4.
However recently alternator field breaker has started popping more and
more frequently. After swapping alternator and breaker and using a
heatgun on the OVP I've determined that the OVP triggers when getting hot.
So I figured I'd just build a new one. However the MSB4991 is obsolete
and no longer available from Mouser and DigiKey.
Is that the reason for this newer OVP circuit?
Much higher parts count.
I really like the original simple compact circuit.
I had it mounted on top of the engine close to the alternator. Maybe I
should just move it into the cockpit?
Finn
Message 2
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Time: 07:41:35 PM PST US
Subject: Re: OVP (over-voltage protection) circuit changes
From: "user9253" <fransew@gmail.com>
eBay has the parts you need.
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Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=510909#510909
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