Society of Robots - Robot Forum
Mechanics and Construction => Mechanics and Construction => Topic started by: jayala1985 on September 21, 2012, 10:35:04 AM
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Im looking to create what is found on animatronicsign.com, I need it to be mobile and run for 10 hours. I planned on using a windshield wiper motor connected to a deep cycle batter but not sure on amps that the motor is drawing. Really need to complete build on a budget any suggestions on best motor/mobile power supply combination. It also needs to be rechargeable. Thank you Im a first time builder and on a budget and time crunch.
Jason
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Measure resistance of motor windings and derive current draw using Ohm's Law ;)
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Measure resistance of motor windings and derive current draw using Ohm's Law ;)
For the peak or stall current. The running current will be less and will vary depending on the load.
To measure the running current place a small value, high wattage resistor in series with the motor/battery. Then measure the voltage drop across the resistor and calculate the current with Ohm's Law.
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To measure the running current place a small value, high wattage resistor in series with the motor/battery. Then measure the voltage drop across the resistor and calculate the current with Ohm's Law.
This is much better way. Totally forgot about it.