Motor Types
Generally speaking, it refers to the conversion of the force generated by the flow of current in a magnetic field into rotational motion, and in a broad sense, it also includes linear motion.
According to the type of power source that drives the motor, it can be divided into DC motors and AC motors. And according to the principle of motor rotation, it can be roughly divided into the following types. (Except for special motors)
DC (direct current) motors are further divided into brushed motors, brushless DC motors, and stepper motors.
Brushed motors: The widely used brushed motors are generally called DC motors. The electrodes called "brushes" (stator side) are connected to the "commutator" (armature side) to switch the current, thereby performing rotational motion.
Brushless DC motors: No brushes and commutators are required, and switching functions such as transistors are used to switch the current and perform rotational motion.
Stepper motors: This motor works synchronously with pulse power, so it is also called a pulse motor. Its characteristic is that it can easily achieve accurate positioning operation.
AC (alternating current) motors are divided into asynchronous motors and synchronous motors.
Asynchronous motors: Alternating current causes the stator to generate a rotating magnetic field, which in turn causes the rotor to generate an induced current, and it rotates under their interaction.
Synchronous motor: AC current creates a rotating magnetic field, and the rotor with magnetic poles rotates due to attraction. The rotation rate is synchronized with the power supply frequency.
