[HomeBrew] Re: HomeBrew Digest, Vol 33, Issue 11

[KE7FEG]

Here are some links:

http://www.circuitspecialists.com/level.itml/icOid/3348
Been to their shop in person. Bought stuff there.

Or setup an 1m555 or 556 timer as a pulse width
modulator cycling around 400 hz or so and drive a
power tranny! That basically is what 'kits' charge
for. You are talking small dc motors right? the
irf-510 fet tranny will do fine or even an bipolar
possibly.

A 'tutorial page' with schematic and all! I would
build it on a perf board or 'manhatten/ugly as sin'.

http://www.homepower.com/files/pwmhp75.pdf

Ed/ke7feg former electronics test tech and
tinkerererer 

also.

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> Today's Topics:
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>    1. Motor speed control (Loren Moline WA7SKT)
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----------------------------------------------------------------------
> 
> Message: 1
> Date: Sat, 28 Oct 2006 21:47:07 -0700
> From: "Loren Moline WA7SKT" <lmoline at hotmail.com>
> Subject: [HomeBrew] Motor speed control
> To: homebrew at mailman.qth.net
> Message-ID:
> <BAY103-F14707B59D4FB95010B8A0AAFFB0 at phx.gbl>
> Content-Type: text/plain; format=flowed
> 
> Hello,
> 
> Does anyone have a ready designed circuit to control
> the speed of a DC 
> motor. I need something of the variable frequency or
> pulse width or both. 
> Lowering voltage reduces speed but also power. I
> need fine speed control of 
> my dish positioner.
> 
> Loren
> 
> 
> 
> If I do not dream then it can't come true!
> Loren Moline WA7SKT  CN86cx
> Member: ARRL, Pacific Northwest VHF Society #151
> 
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> End of HomeBrew Digest, Vol 33, Issue 11
> ****************************************
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*****/////*****/////*****

Ed Culbertson/ke7feg
Remember Katrina? 
For several days, only hams could get out, 
and talk to others dependably.

No Morse Code required for Technician class licensee's. Interested? http://www.arrl.org/

Long live Knoppix, and Puppy Live Linux cd's.


 
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