Servo consumes too much power
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Posts: 46,084
Hi people,
I am making a photophobic robot for my final year engg.
project. I have a deadline to meet i.e. 6th august.
The problem that I am facing right now is that the servos are
consuming too much power. What I mean is that my 6 volts battery
drops to 5.2 in about 15 minutes of intermittent running. When the
voltage drops, the motors turn even when they are not expected to.
i.e. if I program it to run one motor and stop the other motor, still
the other motor runs. What can be the problem ???
I have given the vdd of the servos directly to the battery as for 5
volts, they rotate too slowly. Please help and thanks in advance.
Regards,
Venkatesh Kanchan.
I am making a photophobic robot for my final year engg.
project. I have a deadline to meet i.e. 6th august.
The problem that I am facing right now is that the servos are
consuming too much power. What I mean is that my 6 volts battery
drops to 5.2 in about 15 minutes of intermittent running. When the
voltage drops, the motors turn even when they are not expected to.
i.e. if I program it to run one motor and stop the other motor, still
the other motor runs. What can be the problem ???
I have given the vdd of the servos directly to the battery as for 5
volts, they rotate too slowly. Please help and thanks in advance.
Regards,
Venkatesh Kanchan.
Comments
I have a small robot using 4, C cell nicads (6V, 2000 mah) I use the generic
cheapy servos (not micro) I get around 4 hr run times. This may give you
some idea on what is possible for a battery size.
You could try electric helicopter micro servos, if size permits.
I presume you have tried differant servos? its possible there is something
wrong with yours causing excessive drain.
At 01:05 PM 8/1/2001 -0000, you wrote:
>Hi people,
>
> I am making a photophobic robot for my final year engg.
>project. I have a deadline to meet i.e. 6th august.
>
>The problem that I am facing right now is that the servos are
>consuming too much power. What I mean is that my 6 volts battery
>drops to 5.2 in about 15 minutes of intermittent running. When the
>voltage drops, the motors turn even when they are not expected to.
>i.e. if I program it to run one motor and stop the other motor, still
>the other motor runs. What can be the problem ???
>
> I have given the vdd of the servos directly to the battery as for 5
>volts, they rotate too slowly. Please help and thanks in advance.
>
>Regards,
>Venkatesh Kanchan.
>
>
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Sincerely
Kerry
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motor that is being shut down. As a motor spins down, it produces
current which glitches the control circuit. Diodes may correct the
problem. I would also put ceramic caps across the motor terminals.
Bill
Original Message
From: v_s_kanchan@s... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=0ob844NVWkrEP2lfkWvbHXTsCFFwsi3rdnsO3LfZFm2PONxVFuEoB5fhb4m1k2AKJEQFXQB8hPWWLwg4Khpe3VSZ]v_s_kanchan@s...[/url
Sent: Wednesday, August 01, 2001 7:06 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Servo consumes too much power
Hi people,
I am making a photophobic robot for my final year engg.
project. I have a deadline to meet i.e. 6th august.
The problem that I am facing right now is that the servos are
consuming too much power. What I mean is that my 6 volts battery
drops to 5.2 in about 15 minutes of intermittent running. When the
voltage drops, the motors turn even when they are not expected to.
i.e. if I program it to run one motor and stop the other motor, still
the other motor runs. What can be the problem ???
I have given the vdd of the servos directly to the battery as for 5
volts, they rotate too slowly. Please help and thanks in advance.
Regards,
Venkatesh Kanchan.
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/
an hour or more on 4 AA alkaline batteries. My mini sumo robot runs quite a
while on 4 AAA batteries.
Original Message
> I am making a photophobic robot for my final year engg.
> project. I have a deadline to meet i.e. 6th august.
>
> The problem that I am facing right now is that the servos are
> consuming too much power. What I mean is that my 6 volts battery
> drops to 5.2 in about 15 minutes of intermittent running. When the
> voltage drops, the motors turn even when they are not expected to.
> i.e. if I program it to run one motor and stop the other motor, still
> the other motor runs. What can be the problem ???
>
> I have given the vdd of the servos directly to the battery as for 5
> volts, they rotate too slowly. Please help and thanks in advance.
Thank u for ur reply. I am using 4 AA batteries. The load is normal :
plastic body, 2 ckt. boards, 2 servo, light wheels, and the battteries. It runs
for 20 minutes, may be. What do u say ???
Venkatesh Kanchan.
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detector?
Original Message
> Thank u for ur reply. I am using 4 AA batteries. The load is normal :
plastic body, 2 ckt. boards, 2 servo, light wheels, and the battteries. It
runs for 20 minutes, may be. What do u say ???