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- From: rkarlqu@hpscit.sc.hp.com (Rick Karlquist)
- Date: Sun, 23 Aug 1992 03:06:14 GMT
- Subject: Re: variable current source
- Message-ID: <55550025@hpscit.sc.hp.com>
- Organization: Hewlett-Packard, Santa Clara, CA
- Path: sparky!uunet!cs.utexas.edu!sdd.hp.com!hpscdc!hplextra!hpcc05!hpscit!rkarlqu
- Newsgroups: sci.electronics
- References: <92234.103751U09207@uicvm.uic.edu>
- Lines: 30
-
- In sci.electronics, rcrandall@sc9.intel.com writes:
-
- > 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
-
- > > the "handgun" style soldering irons. Anyway, I was looking for a simple
- > >
- > > 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
-
- Soldering "guns" (like the Weller's) have a transformer driven
- heating wire. You cannot use SCR or TRIAC based lamp dimmers with
- transformer driven equipment.
-
- The easiest way to control a soldering gun is to simply use a
- variac on the AC input to the soldering gun.
-
- Rick Karlquist
- rkarlqu@scd.hp.com
-