Today's Science Experiment. So I drove this little servo motor and got the stall current. I used a Fluke 87 to record the current. The average unloaded current was just about a constant 230 mA. Locked rotor stall current averaged 530 mA. I used a well regulated bench supply set for 5 volts with a 3 amp current capability. The voltage never dipped. I was a little surprised as I really expected a higher stall current. For a little toy motor I was surprised at the torque it delivers. While I didn't measure the torque the feel was strong. I thought I might strip it's little plastic gears but it hung together through several test. I really expected a higher locked rotor current, like about an amp but that didn't happen. I drove it using a little PICAXE because I had one sitting here on the table.
So a newly minted penny weighs in at 2.5 grams +/- .05 gram, that is good to know. I have a standard metric weight set that I seldom use.
Ron
So a newly minted penny weighs in at 2.5 grams +/- .05 gram, that is good to know. I have a standard metric weight set that I seldom use.
Ron