The conduction losses in IGBT is:
A. More than that of MOSFET
B. Lower than that of MOSFET
C. Equal to that of MOSFET
D. Equal to that of BJT
In rectifiers, load current flow is:
A. Unidirectional
B. Bidirectional
C. Either (a) or (b)
D. Non directional
Single phase VSI are mainly used in:
A. Power supplies
B. Ups
C. Multilevel configuration
D. All of these
The man made noise sources is / are:
A. Motors
B. Switches, radio interferences
C. Computers, digital electronics
D. All of these
Any electrical signal present in a circuit other than the desired signal is known as:
A. Noise
B. Distortion
C. Interference
D. All of these
In single phase VSI, the harmonic which is not present is:
A. 2nd
B. 3rd
C. 5th
D. 7th
In commutation PAC stands for:
A. Permanent angle converter
B. Phase angle converter
C. Phase angle commutation
D. Phase and commutation
Double fourier series analysis of PWM is:
A. Two dimensional functions
B. Three dimensional functions
C. One dimensional functions
D. All of these
Double edge modulation eliminates certain harmonics when the reference is a:
A. Sine wave
B. Square wave
C. Triangular wave
D. Trapezoidal wave
Under harmonic free load voltages, the 3 phase VSI:
A. Does not contains second harmonic
B. Does not contains third harmonic
C. Does not contains fifth harmonic
D. Does not contains seventh harmonic
