Re: Ideas to modify a 12v air pump to pump high pressures
Yes, the poor connection caused the motor to see a lower voltage, which also means lower stall current and thus also lower maximum output torque. With the maximum torque being lower, it's possible that the motor kept being stalled or used in a very inefficient state. And the thing about DC motors is that their stall current is usually much much higher than their optimal running current. So even though the voltage was lower, it's possible that the motor drew more current (than normal / in optimal state) in order to output the same torque as before that the pump requires.
So again, the motor didn't draw more current because it was trying to make up for the lower voltage. Rather, it was drawing more current because it was trying to output the requested torque going to the pump.
Originally posted by caphair
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So again, the motor didn't draw more current because it was trying to make up for the lower voltage. Rather, it was drawing more current because it was trying to output the requested torque going to the pump.
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