I have a question... For example, I usually have a DC 12V 0.16A motor, but can I run this motor with a 3v battery..?? It is.. The front specifications are specifications for the cooling fan, but they actually rotate even with a 1.5V battery... The specifications are written for each motor... Is this the right thing to say... It's the best, but less than that is okay... I'm curious ...
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It depends on the motor. In the case of general brush motors, they operate at considerably lower voltages. In the case of a 12V DC motor, it rotates very slowly even if it is over 1V.
However, cooling fans, etc., have semiconductors inside. So, it does not operate at about 1V like a normal DC motor, and it operates only when it is at least about 4~5V. It is difficult to confirm whether it will run at 3V without directly experimenting because the minimum operating voltage is different for each product.
The voltage written on the motor is considered to be the highest efficiency at that voltage.
Even if it is lower than that, it rotates, and even if it is slightly higher than that, it operates without problems, but the efficiency is lowered and the life span may be reduced. (when voltage rises)
DC motors can operate even below the rated voltage. However, there is a risk of overheating and burnout due to insufficient rotational speed or power. The motor can be used with the highest efficiency at its rated voltage.
1. I have a question.. For example, I usually use a DC 12V 0.16A motor. Can I drive this motor with a 3v battery..??
.. The previous specification was for a cooling fan, but in reality it runs with a 1.5V battery... Each motor has its own specification.
Hey.. Does this make sense... It's the best, but less than that is ok.. I wonder...
1) All products have product specifications (specification sheet = SPEC).
2) Example: Rated voltage, rated current, and rated current consumption are basic. Characteristics according to voltage and current depending on the product
Changes etc.. And sometimes even taboos..
3) In general, it is common sense that the voltage operates normally within the ±10% error range of the rated voltage.
4) However, in the case of a DC motor, it is rare for a 12V motor to operate even if a voltage of 1/4 of 3V is supplied.
** Of course it turns, but the number of revolutions (RPM). Torque etc are far below spec.
5) Therefore, when the load is light, the speed is often controlled by adjusting the voltage.