Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!mcdchg!tellab5!verive
From: verive@tellabs.com (Jeff Verive)
Newsgroups: sci.electronics
Subject: Re: Transformer current ratings
Message-ID: <5456@tellab5.tellabs.com>
Date: 3 Mar 91 15:38:01 GMT
References: <8927@exodus.Eng.Sun.COM>
Sender: news@Tellabs.COM
Organization: Tellabs, Inc., Lisle, IL
Lines: 19

In article <8927@exodus.Eng.Sun.COM> bm@bike2work.Eng.Sun.COM (Bill(Francis) Michel) writes:
>I want to build a power supply for a halogen lamp that uses 55 watts. This
>is a 12v lamp. THis means somewhere around 4 amps, right? But when I go
>to buy a transformer, the ratings they give (in amps) apply to a certain
>number of amps, but I'm not sure whether that means through the primary 
>or secondary windings?
>
>Can someone clear me up on this?

Transformers are rated in secondary amps (BTW, 55W/12V is more than 4A, and
it's not a bad idea to be conservative with transformer ratings. Helps keep
them cool and happy.)

 
--
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**   Jeff  Verive  |  If they ever stop making those little candy flowers **
**   259371048378  |  for birthday cakes, I shall lose my will to live.   **
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