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Originally Posted by dlavery
Rather than try to determine the maximum voltage that the motor can take (before self-destruction), you really want to characterize the motor at a specific voltage. Since you retrieved the motors from a toy truck, just determine use normal operating voltage provided by the truck power supply (most likely a set of batteries).
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There were three motors that were run off of the same battery pack. Two of them appear identical. Since the third was different, wouldn't the normal operating voltage be dependent on the voltage division created by the electronics of the truck? If this is the case, can just looking at the resistors and tracing where the leads go on the board serve as the information for calculating the necessary voltage division?
Thanks,
indieFan