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The Relationship Between The Performance Of Micro DC Motor And Other Factors

The structure of the DC motor is divided into two parts: the stator and the rotor. Remember that the stator and the rotor are made up of those parts. Note: Do not confuse the commutation pole with the commutator, remember the two of them.

The stator includes: main pole, base, commutator pole, brush device and so on. The rotor includes armature core, armature windings, commutator, shaft and fan.Micro DC Motor

The performance of the DC motor is closely related to its excitation mode. There are usually four kinds of DC motor excitation modes: DC Hex motor, DC shunt motor, DC series motor and DC rectifier motor. Master the four ways their own characteristics: DC He excited motor: excitation winding and armature without electricity contact, the excitation circuit is supplied by another DC power supply. So the excitation current is not affected by the armature terminal voltage or armature current.Micro DC Motor

DC shunt motor: the voltage across the winding is the voltage across the armature, but the field winding is wound with a thin wire with a large number of turns, so it has a large resistance, making it smaller through his excitation current. DC series motor: the excitation winding is connected in series with the armature, so the magnetic field within the motor with the armature current changes have significant changes. In order to make the field winding does not cause large losses and voltage drop, the smaller the better the resistance of the field winding, so the DC series motor is usually wound with thicker wires, and its fewer turns. DC Torque: The magnetic flux of the motor is generated by the excitation current in the two windings.

DC servo motor, master the permanent magnet DC servo motor classification and characteristics of ordinary type permanent magnet DC servo motor and small inertia type rotor DC servo motor difference. Permanent magnet DC servo motor works and performance, understand the working principle, the performance to master.Micro DC Motor

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