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View Full Version : Power supply for regular dc motors ???



vikas
02-25-2004, 01:09 AM
Does any body have idea for providing power to regular DC motors while making the best use of the poer supply ( battery ) . I use H-Bridge to drive the motors ( simple forward back ) and the batteries go out quite fast when running on them .

addy
11-28-2005, 09:52 PM
h bridge???/
better to use drivers if ur motor draws less current.
use a power supply card so tat the terminal voltage doesn falls due to
loading.......
and as far as battery draining is concerned.....
decrease the pwm,reduce speed of motor but still if the motors r consuming high current.... the battery will drain faster

vidur
11-30-2005, 10:27 AM
if you cant change the motors....you can try changing your s/w

Try this thing i've thought up

Momentarily turn on the motor (permanantly ON)....after a timeout of say 1 sec...depinding on how fast the wheels begin to turn

switch from permanently ON motor to a PWM mode i.e ON-OFF train...

you'll definitely save power., the motor no longer needs that much power to keep running once the wheels have started to move....

A feedback sensor can also help

Vidur