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large capacity power supply — Parallax Forums

large capacity power supply

ArchiverArchiver Posts: 46,084
edited 2003-12-31 03:15 in General Discussion
Recently the thought has occured to me, given the long range wireless
communications options available and the (relative) ease of GPS interfaces,
that perhaps it would be interesting to add significant power capacity to my
all-terrain rover for long-range autonomy. I've been toying with a medium
sized 6WD differential drive platform about 36'' long to tote around a
laptop and PCS cellular connection via windows remote log-in capability, but
run times with these medium sized motors (each consumes 30 amps at max
efficiency) aren't what i'd like. Has anyone here toyed with the idea of
perhaps a scaled down DC generator for robotics? perhaps something
utilizing an R/C gas powerplant or the like to drive the generator? Just a
thought.

Christian Wentz

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Comments

  • ArchiverArchiver Posts: 46,084
    edited 2003-12-30 00:46
    --- In basicstamps@yahoogroups.com, "Christian Wentz" <cwentz86@h...>
    wrote:
    > Recently the thought has occured to me, given the long range
    wireless
    > communications options available and the (relative) ease of GPS
    interfaces,
    > that perhaps it would be interesting to add significant power
    capacity to my
    > all-terrain rover for long-range autonomy. I've been toying with a
    medium
    > sized 6WD differential drive platform about 36'' long to tote
    around a
    > laptop and PCS cellular connection via windows remote log-in
    capability, but
    > run times with these medium sized motors
    > (each consumes 30 amps at max efficiency)

    Efficency of what ? most efficient way to consume the most energy ?

    A simple way to reduce power use is to lower the drive voltage.

    Another is to triple check all linkages and bearings for any
    restriction.

    for a higher output power plant, you might want to look at fuel cells.

    Dave
  • ArchiverArchiver Posts: 46,084
    edited 2003-12-31 03:15
    I was referring to motor efficiency...the drive motors are most efficient in
    terms of power output per watt consumed at about 11,000 rpm according to the
    manufacturer. For the drive trains, everything is riding on sealed
    bearings.


    >From: "Dave Mucha" <davemucha@j...>
    >Reply-To: basicstamps@yahoogroups.com
    >To: basicstamps@yahoogroups.com
    >Subject: [noparse][[/noparse]basicstamps] Re: large capacity power supply
    >Date: Tue, 30 Dec 2003 00:46:24 -0000
    >
    >--- In basicstamps@yahoogroups.com, "Christian Wentz" <cwentz86@h...>
    >wrote:
    > > Recently the thought has occured to me, given the long range
    >wireless
    > > communications options available and the (relative) ease of GPS
    >interfaces,
    > > that perhaps it would be interesting to add significant power
    >capacity to my
    > > all-terrain rover for long-range autonomy. I've been toying with a
    >medium
    > > sized 6WD differential drive platform about 36'' long to tote
    >around a
    > > laptop and PCS cellular connection via windows remote log-in
    >capability, but
    > > run times with these medium sized motors
    > > (each consumes 30 amps at max efficiency)
    >
    >Efficency of what ? most efficient way to consume the most energy ?
    >
    >A simple way to reduce power use is to lower the drive voltage.
    >
    >Another is to triple check all linkages and bearings for any
    >restriction.
    >
    >for a higher output power plant, you might want to look at fuel cells.
    >
    >Dave
    >
    >
    >
    >
    >
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