Regulator sampling PWM is usually used in___________?
A. High power inverters
B. Rectifiers
C. Low power inverters
D. Only a. and b.
A combination of synchronized leading edge and trailing edge modulation has also been used to control a____________?
A. Boost single – phase power factor converter
B. A buck dc – dc converter to reduce ripple in the intermediate dc bus capacitor
C. Both a. and b.
D. None f these
If energy is taken from the AC side of the inverter and sends it back into the DC side, then it is known as___________?
A. Motoring mode operation
B. Braking mode operation
C. Regenerative mode operation
D. None of these
The ac output voltage waveform of VSI and AC output current waveform of CSI respectively is composed of___________?
A. High dv / dt, low di / dt
B. Low dv / dt, low di / dt
C. Low dv / dt, high di / dt
D. High dv / dt, high di / dt
An RC snubber network used in BJT__________?
A. Divert the collector current during turn – off
B. Improves the reverse bias safe operating area
C. Dissipates a fair amount of switching power
D. All of these
A MOSFET, for its conduction uses_____________?
A. Only minority carriers
B. Only majority carriers
C. Both minority and majority carriers
D. None of these
Advantages of Cuk converter is / are_____________?
A. Large number of reactive component
B. Low stress on switch
C. Low stress on capacitor
D. None of these
MOSFET stands for______________?
A. metal – oxide semiconductor field effect transistor
B. molybdenum – oxide semiconductor field effect transistor
C. metal – oxide silicon field effect transistor
D. metal – oxide semiconductor field effect transmitter