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Relay for 6 volt motor — Parallax Forums

Relay for 6 volt motor

ArchiverArchiver Posts: 46,084
edited 2003-04-02 22:07 in General Discussion
I am fairly new to basic stamps, I am looking for a good DPDT relay
to use with a 6-12 volt motor. I searched Jameco but I dont know
whick one to use. Is there such a relay or do I have to use a control
board. I am familar with the "spike" relay used in First Robotics but
am looking for one fairly inexpensive from either Jameco or Digi-key.
>30$ I appreciate any help

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-04-02 20:37
    You may want to use solid state switching (transistor) instead of using a
    relay. Check out my web site for some additional information using stamps
    and solid state switching for relay/motor/valve/etc. control.

    http://geocities.com/jimforkin2003.index.html

    jim

    Original Message
    From: mstroboto2003 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=Qy29gflWqVxGuMzhvNll9848CYM05_hWT8oGTdr4w7xFUjveCDVFsOwehlA9g1YpZ16Gk9XX-9QZnA]monkeymack@a...[/url
    Sent: Wednesday, April 02, 2003 1:40 PM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Relay for 6 volt motor


    I am fairly new to basic stamps, I am looking for a good DPDT relay
    to use with a 6-12 volt motor. I searched Jameco but I dont know
    whick one to use. Is there such a relay or do I have to use a control
    board. I am familar with the "spike" relay used in First Robotics but
    am looking for one fairly inexpensive from either Jameco or Digi-key.
    >30$ I appreciate any help


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  • ArchiverArchiver Posts: 46,084
    edited 2003-04-02 20:41
    check out http://www.geocities.com/jimforkin2003/

    Original Message
    From: mstroboto2003 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=61Y_AJf-dhOyc-fwxsFXtxj8arXLVzQ2eE9VuGJ2qwbP9bb5Zurj-vJ9ZWfHk5UliN6ed1BS1M3D]monkeymack@a...[/url
    Sent: Wednesday, April 02, 2003 1:40 PM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Relay for 6 volt motor


    I am fairly new to basic stamps, I am looking for a good DPDT relay
    to use with a 6-12 volt motor. I searched Jameco but I dont know
    whick one to use. Is there such a relay or do I have to use a control
    board. I am familar with the "spike" relay used in First Robotics but
    am looking for one fairly inexpensive from either Jameco or Digi-key.
    >30$ I appreciate any help


    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/
  • ArchiverArchiver Posts: 46,084
    edited 2003-04-02 22:07
    Relays are rated for different things.

    one is the coil or the voltage you need to feed it to activate it.

    another is a DC load, another is an AC load and for motors there is
    often an inductin load too. this last one is most often listed in
    just hp at voltage.

    with a 6V motor, just figure amps that the realy would need to handle.

    you can dismiss the motor voltage from that point as the AMPs is the
    ratings you are looking for.

    then find a coil voltage that you want to use. ie: 5vdc if from the
    Stamp board power or 12VDC is you want to use a darlington or
    transistor to power it.

    it is very simple. treat the coil as the load the Stamp will see and
    the motor as the load the contacts will see.

    Internally, the realy is isolated.

    Jameco has bunches of them.

    if you wanna scrounge, call an alarm company and ask if you can have
    the old boxes they throw out. most of those have a few relays, some
    small, some pretty large for hobby use. none are as high as 10 amp
    rating (usually)

    Dave





    Dave







    --- In basicstamps@yahoogroups.com, "mstroboto2003" <monkeymack@a...>
    wrote:
    > I am fairly new to basic stamps, I am looking for a good DPDT relay
    > to use with a 6-12 volt motor. I searched Jameco but I dont know
    > whick one to use. Is there such a relay or do I have to use a
    control
    > board. I am familar with the "spike" relay used in First Robotics
    but
    > am looking for one fairly inexpensive from either Jameco or Digi-
    key.
    > >30$ I appreciate any help
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