PHASOR DIAGRAM OF INDUCTION MOTOR

In Induction machine both the stator and rotor winding carry current and produce flux due to which the resultant air gap flux is obtained by sum of the flux of the 2 winding and this resultant flux is responsible for inducing an e.m.f in stator as well as rotor winding. In an Induction machine rotor […]

CHOPPERS

Application of Chopper Speed control of DC Motor. Positional control in robotics. Regulated power supply (SMPS). Input to Inverter. Solar Power Converter. Step Down Chopper CH: – fully controlled switch Operation: – Periodic Time period: – T Duty cycle: – Ton/T Ton = DT CH: – ON           Vo=Vs CH: – OFF          Io=0/Vo=0 Buck Converter S1 […]