[Diy_efi] 555 timer for injector driver

Fri Jul 8 03:05:04 UTC 2005

Good job.  Let us know how the project goes.

Dan Nicoson

> -----Original Message-----
> From: diy_efi-bounces at diy-efi.org [mailto:diy_efi-bounces at diy-efi.org]On
> Behalf Of jeff matthews
> Sent: Thursday, July 07, 2005 8:35 PM
> To: diy_efi at diy-efi.org
> Subject: RE: [Diy_efi] 555 timer for injector driver
>
>
> Thanks everyone!
>
> The Mosfet worked, I picked up a darlington as well, but the
> mosfet was PnP
> (IR510?) (along w/ a diode).
>
> Thanks again!
>
>
> Zoom Zoom-
> JEFF
>
> All out DIY:
> 1996 Miata - T25
> 2003 Protege - T3
>
>
>
>
>
> <br><br><br>From: don.broadus at exeloncorp.com<br>Reply-To:
> diy_efi at diy-efi.org<br>To: diy_efi at diy-efi.org<br>Subject: RE:
> [Diy_efi] 555
> timer for injector driver<br>Date: Thu, 7 Jul 2005 12:56:40 -0500
> <br>MIME-Version: 1.0<br>Received: from nitro.got-boost.net
> ([216.114.79.59]) by mc3-f30.hotmail.com with Microsoft
> SMTPSVC(6.0.3790.211); Thu, 7 Jul 2005 10:58:45 -0700<br>Received: (qmail
> 28732 invoked from network); 7 Jul 2005 17:56:51 -0000<br>Received: from
> localhost (HELO nitro.got-boost.net)
> (?U2FsdGVkX18aGQhsNNXeZ5XxMATSEKu2yyyewurMe6I=?@127.0.0.1)  by localhost
> with SMTP; 7 Jul 2005 17:56:51 -0000<br>Received: (qmail 28276
> invoked from
> network); 7 Jul 2005 17:56:48 -0000<br>Received: from icewall2.ceco.com
> (198.29.191.38)by 216.114.79.61.primarynetwork.com with SMTP; 7 Jul 2005
> 17:56:48 -0000<br>Received: from asd.ceco.com (navgw.ceco.com
> [130.197.136.128])by icewall2.ceco.com (8.12.11/8.12.11) with SMTP id
> j67Hnqhx011908for <diy_efi at diy-efi.org>; Thu, 7 Jul 2005 12:49:52
> -0500 (CDT)<br>Received: from CCCMSMSWP02.energy.power.corp
> ([130.197.136.115])by asd.ceco.com (SAVSMTP 3.1.7.47) with SMTP id
> M2005070712564608701for <diy_efi at diy-efi.org>; Thu, 07 Jul 2005
> 12:56:46 -0500<br>Received: from CCC2KCON01.ceco.com (unverified
> [130.197.136.101]) byCCCMSMSWP02.energy.power.corp(Content Technologies
> SMTPRS 4.3.17) with ESMTP
> id<T71fdc7610a82c588731718 at CCCMSMSWP02.energy.power.corp>
> for<diy_efi at diy-efi.org>; Thu, 7 Jul 2005 12:56:46
> -0500<br>Received:
> by CCC2KCON01-2 with Internet Mail Service (5.5.2657.72)id
> <NGX1WXPY>;
> Thu, 7 Jul 2005 12:56:46 -0500<br>X-Message-Info:
> JGTYoYF78jEBjZrwYp4/R6GrLsMIdIniiNdqnw8Am/Y=<br>Return-Path:
> <don.broadus at exeloncorp.com><br>Delivered-To:
> 68-diy_efi at diy-efi.org<br>X-Mailer: Internet Mail Service
> (5.5.2657.72)<br>X-BeenThere: diy_efi at diy-efi.org<br>X-Mailman-Version:
> 2.1.5<br>Precedence: list<br>List-Id:
> diy_efi.diy-efi.org<br>List-Unsubscribe:
> <http://lists.diy-efi.org/mailman/listinfo/diy_efi>,<mail
> to:diy_efi-request at diy-efi.org?subject=unsubscribe><br>List-Archive:
> <http://lists.diy-efi.org/pipermail/diy_efi><br>List-Post:
> <mailto:diy_efi at diy-efi.org><br>List-Help:
> <mailto:diy_efi-request at diy-efi.org?subject=help><br>List-Su
> bscribe:
> <http://lists.diy-efi.org/mailman/listinfo/diy_efi>,<mail
> to:diy_efi-request at diy-efi.org?subject=subscribe><br>Errors-To:
> diy_efi-bounces at diy-efi.org<br>X-OriginalArrivalTime: 07 Jul 2005
> 17:58:45.0618 (UTC) FILETIME=[84DB4520:01C5831D]<br><br>Hi Dan: I
> did notice
> the missing clamp diode, I had planned on adding
> one<br>myself.<br>
> The circuit will come in handy for pulsing injectors on the car
> and<br>also
> for<br>         a flow bench I'm working on. Thanks again for sharing a
> great<br>circuit.<br><br><br><br><br>-----Original Message-----<br>From:
> diy_efi-bounces at diy-efi.org
> [mailto:diy_efi-bounces at diy-efi.org]On<br>Behalf
> Of Daniel R. Nicoson<br>Sent: Thursday, July 07, 2005 12:01 PM<br>To:
> diy_efi at diy-efi.org<br>Subject: RE: [Diy_efi] 555 timer for injector
> driver<br><br><br>Don,<br><br>check with me tomorrow.  I want to check my
> breadboard to see if I an using<br>a diode across that TIP-120 on the
> breadboard.  I've got so many projects<br>going I just threw that out to
> help Jeff get going.  I probably need to do a<br>final quality
> check...<br><br>Dan Nicoson<br><br><br> > -----Original
> Message-----<br>
> > From: diy_efi-bounces at diy-efi.org
> [mailto:diy_efi-bounces at diy-efi.org]On<br> > Behalf Of
> don.broadus at exeloncorp.com<br> > Sent: Thursday, July 07, 2005 12:31
> PM<br> > To: diy_efi at diy-efi.org<br> > Subject: RE: [Diy_efi] 555
> timer for injector driver<br> ><br> ><br> > The Signal
> Generator
> circuit is great !  Plan to wire one up. Thanks Dan<br> > for
> sending it
> out.<br> > Take Care  Don<br> ><br> ><br> ><br> ><br>
> ><br> ><br> ><br> ><br> > -----Original
> Message-----<br> >
> From: diy_efi-bounces at diy-efi.org
> [mailto:diy_efi-bounces at diy-efi.org]On<br>
> > Behalf Of Daniel R. Nicoson<br> > Sent: Thursday, July 07, 2005
> 10:03 AM<br> > To: diy_efi at diy-efi.org<br> > Subject: RE: [Diy_efi]
> 555 timer for injector driver<br> ><br> ><br> >
> Jeff,<br> ><br>
> > I'd skip the solenoid to run your injector.  You're trying
> to<br> >
> control a slow<br> > device (injector) with possibly an even slower
> device (solenoid).<br> ><br> > Use either a Darlington
> transistor or a
> Mosfet as has already been<br> > suggested.  They are not too
> expensive
> from the local Radio<br> > Shack.  I use a<br> > good heat
> sink on the
> TIP-120 shown in the diagram.  When running at long<br> >
> pulse widths,
> it can build some heat.  (TIP-120 was used simply because it<br>
> > was in
> my parts bin, other Darlington's will work.  You would want to
> add<br> >
> few other things to use the Mosfet properly)<br> ><br> >
> I've attached
> a .pdf of the signal generator I've developed for<br> > use
> with my<br>
> > projects.  Use as much or as little of this circuit as you
> wish.  I'm
> only<br> > using a breadboard version at this point. I may
> make up a PCB
> later this<br> > month.<br> ><br> > Take care,<br> ><br> >
> Dan Nicoson<br> ><br> ><br> > > -----Original
> Message-----<br>
> > > From: diy_efi-bounces at diy-efi.org
> [mailto:diy_efi-bounces at diy-efi.org]On<br> > > Behalf Of jeff
> matthews<br> > > Sent: Wednesday, July 06, 2005 9:39 PM<br>
> > >
> To: diy_efi at diy-efi.org<br> > > Subject: [Diy_efi] 555 timer for
> injector driver<br> > ><br> > ><br> > > Hi-<br>
> > >
> To keep my ??? simple,  I built a 555 timer to work on a little<br> >
> > experiment,<br> > > I have it energizing the solenoid
> on a  12v
> relay, why won't it open and<br> > > close my injector?
> (it's just a
> basic saturated 550cc).  Is there some<br> > > secret to on
> making an
> injector operate?<br> > ><br> > > Like I stated,
> this is for an
> experiment, just thought I could handle<br> > > making an injector
> fire on the bench...<br> > ><br> > > Best
> regards,<br> > >
> JEFF<br> > ><br> > ><br> > >
> _______________________________________________<br> > > Diy_efi
> mailing list<br> > > Diy_efi at diy-efi.org<br> > >
> http://lists.diy-efi.org/mailman/listinfo/diy_efi<br> >
> ><br> ><br>
> ><br> >
> ******************************************************************
> ******<br>
> > This e-mail and any of its attachments may contain Exelon
> Corporation<br> > proprietary information, which is privileged,
> confidential, or subject<br> > to copyright belonging to the Exelon
> Corporation family of Companies.<br> > This e-mail is intended
> solely for
> the use of the individual or entity<br> > to which it is
> addressed.  If
> you are not the intended recipient of this<br> > e-mail, you
> are hereby
> notified that any dissemination, distribution,<br> > copying,
> or action
> taken in relation to the contents of and attachments<br> > to
> this e-mail
> is strictly prohibited and may be unlawful.  If you have<br> >
> received
> this e-mail in error, please notify the sender immediately and<br> >
> permanently delete the original and any copy of this e-mail and
> any<br> >
> printout. Thank You.<br> >
> ******************************************************************
> ******<br>
> ><br> > _______________________________________________<br> >
> Diy_efi mailing list<br> > Diy_efi at diy-efi.org<br> >
> http://lists.diy-efi.org/mailman/listinfo/diy_efi<br>
> ><br><br>_______________________________________________<br>Diy_efi
> mailing
> list<br>Diy_efi at diy-efi.org<br>http://lists.diy-efi.org/mailman/li
> stinfo/diy_efi<br>_______________________________________________<
> br>Diy_efi
> mailing
> list<br>Diy_efi at diy-efi.org<br>http://lists.diy-efi.org/mailman/li
> stinfo/diy_efi<br>
>
>
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org
> http://lists.diy-efi.org/mailman/listinfo/diy_efi
>