ECE :: Power Electronics
-
In a semi converter feeding a resistive load
-
In an n stage high frequency series inverter having a time period T, each stage is active for a time interval of
-
In a 3 phase semiconverter, the output voltage becomes discontinuous for
-
A single phase fully controlled bridge converter is feeding an RLE load. Input voltage is Vm sin ωt and firing angle is a. If average current is I0, then
-
In integral cycle control of ac regulator, the input power factor is equal to
-
McMurrary full bridge inverter uses
-
A fully controlled bridge converter feeds a highly inductive load such that the load current can be assumed to be constant. The wave shape of input current is
-
A static excitation system uses
-
The power factor at the input terminals of a cyclo- converter is generally
|
A.
the waveshapes of output voltage and output current are exactly similar
|
|
B.
the waveshapes of output voltage and output current can not be similar
|
|
C.
the waveshapes of output voltage and output current are similar only for low values of firing angle
|
|
D.
the waveshapes of output voltage and output current may be similar or dissimilar
|
Whatsapp
Facebook
cos 
cos