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help with relays — Parallax Forums

help with relays

ArchiverArchiver Posts: 46,084
edited 2002-02-25 20:52 in General Discussion
For Justin

A Darlington like the ULN2003

Sid


[noparse][[/noparse]Non-text portions of this message have been removed]

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-02-23 18:19
    For Justin

    I think Digikey stocks them.. They are about ninety cents as I recall.

    Sid


    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2002-02-23 18:39
    Hello all,
    I am trying to figure out, what electical componet, works like a relay,
    but has no moving parts. can anyone help me..


    thanks Justin


    [noparse][[/noparse]Non-text portions of this message have been removed]
  • ArchiverArchiver Posts: 46,084
    edited 2002-02-23 18:49
    I would call that a solid state relay.. An optical coupler might also
    work for small power applications.

    Leroy

    DigitalCowboy00 wrote:
    >
    > Hello all,
    > I am trying to figure out, what electical componet, works like a relay,
    > but has no moving parts. can anyone help me..
    >
    > thanks Justin
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
    >
    > To UNSUBSCRIBE, just send mail to:
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  • ArchiverArchiver Posts: 46,084
    edited 2002-02-23 19:56
    where can i get one of those?

    Original Message
    From: Newzed@a... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=TtYmPNustfcRuhABKV5tL1jzNH7uizU-XJMPIFRpQO0qGgoJME179w3upm9o3Rzq_Rnr6mpzK3AZ]Newzed@a...[/url
    Sent: Saturday, February 23, 2002 8:38 AM
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    Subject: Re: [noparse][[/noparse]basicstamps] help with relays


    For Justin

    A Darlington like the ULN2003

    Sid


    [noparse][[/noparse]Non-text portions of this message have been removed]


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  • ArchiverArchiver Posts: 46,084
    edited 2002-02-23 22:52
    A solid state relay perhaps? :-)
    Seriously though, they are out there and easy to implement.
    Not only that, but you can switch them with 12v and control 240Vac on the
    relay contacts.

    Alternatively, if you aren't switching high voltages, a CMOS IC like the
    4066 Quad Bilateral Switch should do the trick.

    Ben, Wellington, NZ.

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    From: "DigitalCowboy00" <DigitalCowboy00@s...>
    To: <basicstamps@yahoogroups.com>
    Subject: [noparse][[/noparse]basicstamps] help with relays
    Date: Sun, 24 Feb 2002 7:39 AM


    Hello all,
    I am trying to figure out, what electical componet, works like a relay,
    but has no moving parts. can anyone help me..


    thanks Justin


    [noparse][[/noparse]Non-text portions of this message have been removed]


    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject and
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  • ArchiverArchiver Posts: 46,084
    edited 2002-02-25 19:21
    Also look at triacs/optotriacs, which will switch an AC source on changed
    logic states.


    On Sat, 23 Feb 2002, Leroy Hall wrote:

    > I would call that a solid state relay.. An optical coupler might also
    > work for small power applications.
    >
    > Leroy
    >
    > DigitalCowboy00 wrote:
    > >
    > > Hello all,
    > > I am trying to figure out, what electical componet, works like a relay,
    > > but has no moving parts. can anyone help me..
    > >
    > > thanks Justin
    > >
    > > [noparse][[/noparse]Non-text portions of this message have been removed]
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    > >
    > >
    > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
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    of the message will be ignored.
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    >
    >
    >

    Sean T. Lamont, CTO / Chief NetNerd, Abstract Software, Inc. (ServNet)
    Seattle - Bellingham - Vancouver - Portland - Everett - Tacoma - Bremerton
    email: lamont@a... WWW: http://www.serv.net
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  • ArchiverArchiver Posts: 46,084
    edited 2002-02-25 20:52
    Depending on what kind of current you want to switch (AC or DC), and
    with what kind of control current (AC or DC) and also how large a
    current you can use variety of solid state relays.
    See current Jameco catalog pp. 47-48. They have tons of them.

    Alex.


    --- In basicstamps@y..., "DigitalCowboy00" <DigitalCowboy00@s...>
    wrote:
    > Hello all,
    > I am trying to figure out, what electical componet, works like
    a relay,
    > but has no moving parts. can anyone help me..
    >
    >
    > thanks Justin
    >
    >
    > [noparse][[/noparse]Non-text portions of this message have been removed]
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