Electrical Revolution

Audio Frequency Transformer: Construction Figure (a) shows center taped secondary winding to provide two anti-phase signals.  The dot near...

In this article, construction, function and application of isolation transformer is given Function of Isolation Transformer The isolatio...

  Introduction The range of radio frequency is from 30 kHz to 300 GHz .  The radio frequency transformer is classified on the basis of ope...

Function of Microphone Transformer The audio transformer can be used for matching microphone to input of amplifier.  The main function of th...

Resolver Control Transmitter & Resolver Control Transformer In this article, principle, construction and working of resolver control tra...

  Principle When a magnet material is placed in the magnetic field, it always moves in the direction of strongest magnetic field.  A synch...

The classification of permanent magnet synchronous motor is done based on induced emf in the it. Brushless AC Motor When the waveform of ind...

In this theory, construction and working of full step (single phase ON) and full step (two phase ON) and half step (single phase and two pha...

Construction of DC Servo Motor The construction of DC Servo motor is similar to that of separately excited DC Motor or Permanent Magnet DC M...

In this article, Single Phase ON operation, Two Phase ON operation, Half Step Operation and Features of Permanent magnet ( PM ) Stepper Moto...

  The characteristics of Hybrid stepper motor is combined that of variable reluctance ( VR ) stepper motor and permanent magnet ( PM ) stepp...

The construction, step angle, advantages and disadvantages of variable reluctance stepper motor is given in this theory. Construction of Var...