In this lesson we discuss speed and position control. Brushes and commutator unlike other electric motor types i. An905 ds00905bpage 2 2010 microchip technology inc. Working or operating principle of dc motor electrical4u. Lecture series on basic electrical technology by prof. The very basic construction of a dc motor contains a current carrying armature, connected to the supply end through commutator segments and brushes. Electrical drives these are direct current dc or alternating current ac servo motors. Brushed dc motors, despite their mechanical complexity, are governed by only a few forces. Dc motors although ac motors are used in most of the cases, dc motors have many applications and used for multipurpose applications. Mod01 lec30 lecture30characteristics of dc shunt motors. As soon as we supply direct current in the armature, a mechanical force acts on it due to the electromagnetic effect of.
Lecture 16 dc motor speed control introduction youtube. In this lesson aspects of starting and speed control of d. Dc motor principle a machine that converts dc power into mechanical energy is known as dc motor. Let us now solve some problems on shunt, separately excited and series motors. Understanding and using dc motor specifications gears educational systems 105 webster st.
Learners study the interaction between the conductors of the stator and the armature inside a dc motor, which causes the shaft to. Debaprasad kastha, department of electrical engineering, iit kharagpur. Lecture series on industrial automation and control by prof. Types of dc motors dc motor are of 3 types they are 1. Umanand, principal research scientist, power electronics group, cedt, iisc bangalore. This chapter gives the motivation behind using direct current machines and its application in various. Lesson 3 understanding and using dc motor specifications. Its operation is based on the principle that when a current carrying conductor is placed in a. Brushed dc motor fundamentals microchip technology. For servo drive applications, dc motors are still used, although they are also being replaced by bldc motors. Subhajit bose03 shuvankar das02 binoy mourya09 sushobhan sarkar06 prosenjit debnath35 3.
929 895 936 782 977 311 1413 534 255 1577 1139 948 1339 1593 1082 11 1625 1640 1548 300 21 77 775 996 1009 169 1540 366 232 16 935 1496 1470 76 43 1429 1370