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- Newsgroups: sci.electronics
- Path: sparky!uunet!iWarp.intel.com|imutm1.de.intel.com!inews.Intel.COM!sc9.intel.com!rcrandall
- From: rcrandall@sc9.intel.com
- Subject: Re: variable current source
- Message-ID: <1992Aug21.101828.1@sc9.intel.com>
- Lines: 26
- Sender: news@nntp-sc.Intel.COM (USENET News System)
- Nntp-Posting-Host: libra
- Organization: Intel CTD
- References: <92234.103751U09207@uicvm.uic.edu>
- Date: Fri, 21 Aug 1992 17:18:28 GMT
-
- In article <92234.103751U09207@uicvm.uic.edu>, U09207@uicvm.uic.edu writes:
- > From: Vahe Caliskan
- >
- > I am looking for a circuit that can be used to control the current
- > delivered to a soldering iron tip from the ac line. The tip is not a
- > regular heating element as in hand held soldering irons but it is the
- > wire type found in
- > the "handgun" style soldering irons. Anyway, I was looking for a simple
- > circuit employing SCRs, Triacs, Diacs that can do the job. I am trying to
- > control the current from 3 to 8 amps. Any suggestions? Please email to me.
- > Any help would be greatly appreciated since I am not very familiar with
- > circuits that use the above mentioned devices.
- >
- > Thanks in advance.
- >
- > Vahe Caliskan (vahe@uicbert.eecs.uic.edu)
-
- I would think that a good motor speed controller or variable lamp brightness
- control would work great. It would not have any temperature feedback, but
- would certainly have some control of the temperature of the tip. Another
- way of doing it would be to use a ac-dc converter circuit and then use
- a variable current source circuit with thermocouple feedback from the tip
- to get very good control.
-
- Rob
- rcrandall@sc.intel.com
-