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Groups > sci.electronics.design > #453419
| From | Bob Engelhardt <BobEngelhardt@comcast.net> |
|---|---|
| Newsgroups | sci.electronics.design |
| Subject | Re: two relays |
| Date | 2017-03-24 13:29 -0400 |
| Organization | NewsGuy - Unlimited Usenet $23.95 |
| Message-ID | <ob3l2e0eec@news7.newsguy.com> (permalink) |
| References | (1 earlier) <e5908be6-b3ff-4b34-a16b-4d6c65a8e006@googlegroups.com> <XnsA741D03D233DAidtokenpost@69.16.179.23> <av09dclunhlge9a8f1isacfsqq1n7qvqc8@4ax.com> <XnsA74297D7D122idtokenpost@69.16.179.22> <uvdadc9u938c8u0ajnoib15p2a2i8ccri5@4ax.com> |
On 3/24/2017 11:18 AM, John Larkin wrote: > The best way to do three or more relays is probably to take advantage > of the pullin/hold current differential, using the second set of DPDT > contacts on each relay. That only needs one resistor per relay, and > saves the most power when they are on. Or off. > > I guess that's the best way, period. > > But ... the contacts are most certainly break-before-make, so timing could be a problem. Depending upon inertia of armature, flyback diode current, ... No experience, just a thought.
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two relays John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-23 16:10 -0700
Re: two relays Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-03-23 16:27 -0700
Re: two relays John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-23 16:46 -0700
Re: two relays Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-03-23 17:00 -0700
Re: two relays Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-03-24 02:49 -0400
Re: two relays John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-24 08:14 -0700
Re: two relays tabbypurr@gmail.com - 2017-03-24 08:55 -0700
Re: two relays Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-03-24 19:26 -0400
Re: two relays John Larkin <jjlarkinxyxy@highlandtechnology.com> - 2017-03-24 17:37 -0700
Re: two relays whit3rd <whit3rd@gmail.com> - 2017-03-23 17:08 -0700
Re: two relays Steve Wilson <no@spam.com> - 2017-03-24 00:28 +0000
Re: two relays John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-23 19:27 -0700
Re: two relays Steve Wilson <no@spam.com> - 2017-03-24 04:55 +0000
Re: two relays John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-24 08:18 -0700
Re: two relays Bob Engelhardt <BobEngelhardt@comcast.net> - 2017-03-24 13:29 -0400
Re: two relays bitrex <bitrex@de.lete.earthlink.net> - 2017-03-24 11:17 -0400
Re: two relays John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-24 09:07 -0700
Re: two relays bitrex <bitrex@de.lete.earthlink.net> - 2017-03-24 16:21 -0400
Re: two relays tabbypurr@gmail.com - 2017-03-24 14:28 -0700
Re: two relays bitrex <bitrex@de.lete.earthlink.net> - 2017-03-24 18:26 -0400
Re: two relays tabbypurr@gmail.com - 2017-03-25 01:00 -0700
Re: two relays bitrex <bitrex@de.lete.earthlink.net> - 2017-03-25 12:55 -0400
Re: two relays krw@notreal.com - 2017-03-25 13:34 -0400
Re: two relays George Herold <gherold@teachspin.com> - 2017-03-23 17:18 -0700
Re: two relays bloggs.fredbloggs.fred@gmail.com - 2017-03-24 06:27 -0700
Re: two relays John Larkin <jjlarkin@highlandtechnology.com> - 2017-03-24 08:19 -0700
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