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DPRG: PWM schemes

Subject: DPRG: PWM schemes
From: James, Bill w-james2 at ti.com
Date: Fri Sep 10 07:03:29 CDT 1999

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That looks pretty sweet, maybe after the contest I can redesign my system
and use that. 
thanks

Bill

- -----Original Message-----
>From: Dan Miner [mailto:miner at centtech.com]
Sent: Thursday, September 09, 1999 11:43 AM
To: 'dprglist at dprg.org'
Subject: RE: DPRG: PWM schemes


Check out the PWM chips from Harris: 68HC68W1.
  http://www.intersil.com/data/fn/fn1/fn1919/
  http://www.intersil.com/data/fn/fn1/fn1919/FN1919.pdf
(FYI - Harris sold its semiconductor operation to
Intersil so now it's technically not a Harris part.)

They are what Drilbert is using.

These take a serial data input (*NOT* RS-232) that can
be driven by a PC parallel port and generate PWM on 
their own.  Set and forget.  Roughly $3.00 qu. 1.
I would be willing to sell you 2 at the next meeting
if you want.  (I'll have to check the price I paid
including shipping...)

> 
> "James, Bill" wrote:
> 
> > 1111111111111111   Full on
> > 1111111111111110
> > 1111111111111100
> > 1111111111111000
> > 1111111111110000
> > 1111111111100000
> > 1111111111000000
> > 1111111110000000
> > 1111111100000000
> > 1111111000000000
> > 1111110000000000
> > 1111100000000000
> > 1111000000000000
> > 1110000000000000
> > 1100000000000000
> > 1000000000000000
> > 0000000000000000 Full off
> 

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<TITLE>RE: DPRG: PWM schemes</TITLE>
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<P><FONT SIZE=3D2>That looks pretty sweet, maybe after the contest I =
can redesign my system and use that. </FONT>
<BR><FONT SIZE=3D2>thanks</FONT>
</P>

<P><FONT SIZE=3D2>Bill</FONT>
</P>

<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Dan Miner [<A =
HREF=3D"mailto:miner at centtech.com">mailto:miner at centtech.com</A>]</FONT>=

<BR><FONT SIZE=3D2>Sent: Thursday, September 09, 1999 11:43 AM</FONT>
<BR><FONT SIZE=3D2>To: 'dprglist at dprg.org'</FONT>
<BR><FONT SIZE=3D2>Subject: RE: DPRG: PWM schemes</FONT>
</P>
<BR>

<P><FONT SIZE=3D2>Check out the PWM chips from Harris: 68HC68W1.</FONT>
<BR><FONT SIZE=3D2>&nbsp; <A =
HREF=3D"http://www.intersil.com/data/fn/fn1/fn1919/" =
TARGET=3D"_blank">http://www.intersil.com/data/fn/fn1/fn1919/</A></FONT>=

<BR><FONT SIZE=3D2>&nbsp; <A =
HREF=3D"http://www.intersil.com/data/fn/fn1/fn1919/FN1919.pdf" =
TARGET=3D"_blank">http://www.intersil.com/data/fn/fn1/fn1919/FN1919.pdf<=
/A></FONT>
<BR><FONT SIZE=3D2>(FYI - Harris sold its semiconductor operation =
to</FONT>
<BR><FONT SIZE=3D2>Intersil so now it's technically not a Harris =
part.)</FONT>
</P>

<P><FONT SIZE=3D2>They are what Drilbert is using.</FONT>
</P>

<P><FONT SIZE=3D2>These take a serial data input (*NOT* RS-232) that =
can</FONT>
<BR><FONT SIZE=3D2>be driven by a PC parallel port and generate PWM on =
</FONT>
<BR><FONT SIZE=3D2>their own.&nbsp; Set and forget.&nbsp; Roughly $3.00 =
qu. 1.</FONT>
<BR><FONT SIZE=3D2>I would be willing to sell you 2 at the next =
meeting</FONT>
<BR><FONT SIZE=3D2>if you want.&nbsp; (I'll have to check the price I =
paid</FONT>
<BR><FONT SIZE=3D2>including shipping...)</FONT>
</P>

<P><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &quot;James, Bill&quot; wrote:</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111111111111&nbsp;&nbsp; Full =
on</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111111111110</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111111111100</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111111111000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111111110000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111111100000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111111000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111110000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111100000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111111000000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111110000000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111100000000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1111000000000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1110000000000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1100000000000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 1000000000000000</FONT>
<BR><FONT SIZE=3D2>&gt; &gt; 0000000000000000 Full off</FONT>
<BR><FONT SIZE=3D2>&gt; </FONT>
</P>

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