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Groups > sci.electronics.design > #701874

Re: many relay drivers

From Sylvia Else <sylvia@email.invalid>
Newsgroups sci.electronics.design
Subject Re: many relay drivers
Date 2023-07-25 13:15 +1000
Message-ID <ki8t28Fa40bU1@mid.individual.net> (permalink)
References <m9vtbidjnfs514s4s26nhj59m1ojp8q2m1@4ax.com>

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On 25-July-23 8:41 am, John Larkin wrote:
> 
> https://www.dropbox.com/scl/fi/40slcbgbngggdcwwt95vi/Relay_Drivers.jpg?rlkey=gfai2trx0n6bnja2yl4hber7i&raw=1
> 
> I like C1, with just a high-enough-voltage mosfet that it survives the
> max flyback voltage.

I'd be concerned that whatever I thought the max flyback voltage could 
be, there will be a combination of circumstances that conspire to 
produce something higher on the day when that's most inconvenient.

E lets you choose the turn-off time as a trade against FET drain voltage.

Sylvia.

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Thread

many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-24 15:41 -0700
  Re: many relay drivers Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2023-07-24 23:25 +0000
    Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-24 18:15 -0700
      Re: many relay drivers Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2023-07-25 01:36 +0000
      Re: many relay drivers boB <boB@K7IQ.com> - 2023-07-24 18:38 -0700
        Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-24 18:56 -0700
          Re: many relay drivers Chris Jones <lugnut808@spam.yahoo.com> - 2023-07-25 21:49 +1000
            Re: many relay drivers Chris Jones <lugnut808@spam.yahoo.com> - 2023-07-25 21:54 +1000
            Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-25 08:06 -0700
      Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-24 18:46 -0700
      Re: many relay drivers Lasse Langwadt Christensen <langwadt@fonz.dk> - 2023-07-24 18:59 -0700
        Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-24 19:24 -0700
          Re: many relay drivers Lasse Langwadt Christensen <langwadt@fonz.dk> - 2023-07-24 20:04 -0700
            Re: many relay drivers John Larkin <jlarkin@highland_atwork_technology.com> - 2023-08-11 15:34 -0700
  Re: many relay drivers Sylvia Else <sylvia@email.invalid> - 2023-07-25 13:15 +1000
    Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-25 08:54 -0700
  Re: many relay drivers Jan Panteltje <alien@comet.invalid> - 2023-07-25 05:20 +0000
    Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-25 09:01 -0700
      Re: many relay drivers Jan Panteltje <alien@comet.invalid> - 2023-07-26 05:03 +0000
        Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-26 06:42 -0700
          Re: many relay drivers Jan Panteltje <alien@comet.invalid> - 2023-07-26 15:43 +0000
            Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-26 12:28 -0700
              Re: many relay drivers boB <boB@K7IQ.com> - 2023-07-26 20:10 -0700
                Re: many relay drivers Lasse Langwadt Christensen <langwadt@fonz.dk> - 2023-07-26 20:22 -0700
                Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-27 07:00 -0700
              Re: many relay drivers Jan Panteltje <alien@comet.invalid> - 2023-07-27 05:16 +0000
                Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-27 07:02 -0700
                Re: many relay drivers boB <boB@K7IQ.com> - 2023-07-27 21:02 -0700
                Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-28 06:44 -0700
  Re: many relay drivers piglet <erichpwagner@hotmail.com> - 2023-07-25 15:04 +0100
    Re: many relay drivers John Larkin <jlarkin@highlandSNIPMEtechnology.com> - 2023-07-25 09:04 -0700
  Re: many relay drivers Fred Bloggs <bloggs.fredbloggs.fred@gmail.com> - 2023-07-25 09:17 -0700
    Re: many relay drivers Lasse Langwadt Christensen <langwadt@fonz.dk> - 2023-07-25 09:46 -0700
      Re: many relay drivers Fred Bloggs <bloggs.fredbloggs.fred@gmail.com> - 2023-07-25 09:49 -0700
        Re: many relay drivers Lasse Langwadt Christensen <langwadt@fonz.dk> - 2023-07-25 10:55 -0700

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