Q: Which microcontroller is used in this project?
A: 8051 family 40 pin microcontroller is used in this project.
Q: What is a Cyclo-converter?
A: Cyclo-converter converts a constant voltage, constant frequency AC waveform to another AC waveform of a lower frequency by synthesizing the output waveform from segments of the AC supply without an intermediate DC link
Q: What is the rating of Induction motor used?
A: 230V, 1500RPM, ¼HP rated induction motor is used.
Q: How can the speed be reduced?
A: By operation modes in F(Fundamental frequency), F/2 and F/3, speed can be reduced.
Q: What do F, F/2, F/3 indicate?
A: F indicates the fundamental or supply frequency, F/2 indicates the supply frequency divided by two and F/3 indicates the supply frequency to one-third.
Q: What is the formula for calculating smoothing capacitor value?
A: There is some approximated formula .Peak to peak ripple voltage = Load current in amps / (2*line frequency in hertz *capacitance in farads). But as rule of thumb for 1 A current 1000uF is best. Thus it is load dependent.