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Driving solenoiods... — Parallax Forums

Driving solenoiods...

ArchiverArchiver Posts: 46,084
edited 2002-05-28 00:53 in General Discussion
Dear Stampers,

I found in our archive a two years old message that mentiones IPS021
as a good choice for driving a solenoid. Does anyone tried that one?
My latching solenoid is about 5 Ohm and I drive it with 12V for a
very short period of time. No holding cycle is needed, since its
latching. It is also my understanding that if a solenoid driven by a
semiconductor device, no "kick-back" diode is needed.

Any suggestions on other options and any advice will be greatly
appreciated.

Alex.

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2002-05-26 23:47
    thats incorrect, a "kick back" diode is still required.
    your still driving a coil of wire, relay, solenoid, inductor, it doesnt
    matter.


    norm

    >From: "biovirus1" <alex_chaihorsky@h...>
    >Reply-To: basicstamps@yahoogroups.com
    >To: basicstamps@yahoogroups.com
    >Subject: [noparse][[/noparse]basicstamps] Driving solenoiods...
    >Date: Sun, 26 May 2002 21:53:25 -0000
    >
    >Dear Stampers,
    >
    >I found in our archive a two years old message that mentiones IPS021
    >as a good choice for driving a solenoid. Does anyone tried that one?
    >My latching solenoid is about 5 Ohm and I drive it with 12V for a
    >very short period of time. No holding cycle is needed, since its
    >latching. It is also my understanding that if a solenoid driven by a
    >semiconductor device, no "kick-back" diode is needed.
    >
    >Any suggestions on other options and any advice will be greatly
    >appreciated.
    >
    >Alex.
    >
    >
    >
    >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/
    >
    >




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  • ArchiverArchiver Posts: 46,084
    edited 2002-05-27 00:30
    Yes, you are correct that no external kickback device is required. This
    is only because on this device it is included with in the device. Other
    types of drivers may not have this feature and would require it placed
    externally. Please see:

    http://www.irf.com/product-info/datasheets/data/ips021.pdf

    regards,

    Leroy

    biovirus1 wrote:
    >
    > Dear Stampers,
    >
    > I found in our archive a two years old message that mentiones IPS021
    > as a good choice for driving a solenoid. Does anyone tried that one?
    > My latching solenoid is about 5 Ohm and I drive it with 12V for a
    > very short period of time. No holding cycle is needed, since its
    > latching. It is also my understanding that if a solenoid driven by a
    > semiconductor device, no "kick-back" diode is needed.
    >
    > Any suggestions on other options and any advice will be greatly
    > appreciated.
    >
    > Alex.
    >
    > 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 2002-05-28 00:53
    Are you sure? It looks like IPS021 is actually internally protected...
    But certainly all unprotected transistors need kick-back protection.

    Alex.


    --- In basicstamps@y..., "norman doty" <normdoty@h...> wrote:
    > thats incorrect, a "kick back" diode is still required.
    > your still driving a coil of wire, relay, solenoid, inductor, it
    doesnt
    > matter.
    >
    >
    > norm
    >
    > >From: "biovirus1" <alex_chaihorsky@h...>
    > >Reply-To: basicstamps@y...
    > >To: basicstamps@y...
    > >Subject: [noparse][[/noparse]basicstamps] Driving solenoiods...
    > >Date: Sun, 26 May 2002 21:53:25 -0000
    > >
    > >Dear Stampers,
    > >
    > >I found in our archive a two years old message that mentiones
    IPS021
    > >as a good choice for driving a solenoid. Does anyone tried that
    one?
    > >My latching solenoid is about 5 Ohm and I drive it with 12V for a
    > >very short period of time. No holding cycle is needed, since its
    > >latching. It is also my understanding that if a solenoid driven by
    a
    > >semiconductor device, no "kick-back" diode is needed.
    > >
    > >Any suggestions on other options and any advice will be greatly
    > >appreciated.
    > >
    > >Alex.
    > >
    > >
    > >
    > >To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@y...
    > >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/
    > >
    > >
    >
    >
    >
    >
    > _________________________________________________________________
    > Chat with friends online, try MSN Messenger:
    http://messenger.msn.com
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