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                           AeroElectric-List Digest Archive
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                     Total Messages Posted Sun 06/04/23: 2
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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  _____________________________________


Time: 04:45:58 PM PST US
From: Finn Lassen <finn.lassen@verizon.net>
Subject: AeroElectric-List: 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 However the MSB4991 is obsolete 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  _____________________________________


Time: 07:41:35 PM PST US
Subject: AeroElectric-List: Re: OVP (over-voltage protection) circuit changes
From: "user9253" <fransew@gmail.com>


eBay has the parts you need.

--------
Joe Gores


Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=510909#510909


 

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