Lesson Archives

  1. Amplitude Modulation, Need for Modulation, AM modulator demodulator, Equation of AM Signal , Modulation Index, Power and Bandwidth of AM Signal Envelope/Diode AM Detector Synchronous or Coherent Demodulation Diode vs. Coherent  Double Sideband Suppressed Carrier DSBSC Modulator Costas Loop Single Sideband Suppressed Carrier SSBSC Modulator SSBSC Demodulator
  2. DC Motors:  Motor Characteristics, Two Point Starter, Three point Starter,  DC Shunt wound Motors, DC Series Wound Motors ,  Separately Excited DC motors, Speed regulation. 
  3. DC Generators, Simple Loop generator, Split Ring, Commutator, Multi-pole, Yoke, Armature, Lap and wave winding, EMF equation, Shunt , series and Compound DC generators, Separately excited, Voltage regulation, Characteristics curves, applications of DC generators.