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Difference between CCM and DCM, Continuous Conduction Mode & Discontinuous Conduction Mode?
Answeredchetan shidling asked 6 years ago • 
2164 views1 answers0 votes
The net change in the inductor current over one complete switching cycle is
Answeredchetan shidling asked 6 years ago • 
889 views1 answers0 votes
When the current flows through undotted terminal in the primary side the current will exit through dotted terminal in the secondary side
Answeredchetan shidling asked 6 years ago • 
900 views1 answers0 votes
What is a SEPIC in power electronics?
Answeredchetan shidling asked 6 years ago • 
894 views1 answers0 votes
With neat circuit diagram and phasor diagram, explain the operation of three phase VSI working as rectifier.
Openchetan shidling asked 6 years ago • 
930 views0 answers0 votes
Compare a three phase VSI with square wave switching over SPWM switching for maximizing inverter output VA.
Openchetan shidling asked 6 years ago • 
897 views0 answers1 votes
With neat circuit diagram and important waveforms, explain the operation of three phase inverter with programmed harmonic elimination switching.
Openchetan shidling asked 6 years ago • 
1025 views0 answers0 votes
With neat circuit diagram and important waveforms, explain the operation of three phase current controlled VSI operating with constant switching frequency
Openchetan shidling asked 6 years ago • 
877 views0 answers0 votes
In a full bridge inverter, if Vd = 300 V, ma = 0.8, mf = 39, and the fundamental frequency is 47 Hz. Calculate the rms values of the fundamental-frequency voltage and some of the dominant harmonics in the output voltage Vo.
Openchetan shidling asked 6 years ago • 
1064 views0 answers-1 votes
With neat circuit diagram and waveforms, explain single phase inverter with uni-polar switching scheme.
Openchetan shidling asked 6 years ago • 
895 views0 answers0 votes
Why and how the output voltage of SPWM inverters varies linearly with modulation index ma ≤ 1.0?
Openchetan shidling asked 6 years ago • 
1083 views0 answers0 votes
With neat circuit diagram and waveforms, explain the operation of the push-pull inverter with a pure inductive load.
Openchetan shidling asked 6 years ago • 
912 views0 answers-1 votes
Explain the complete DC power supply with neat block diagram?
Openchetan shidling asked 6 years ago • 
899 views0 answers0 votes
A push-pull dc-dc converter has the following parameters which are operating in CCM: Source voltage is 50 V, ratio of primary to secondary turns is 2, filter inductance value is 60 µH, filter capacitor value is 40 µF, load resistance is 8 Ω, switching frequency is 150 kHz and switch duty ratio is 0.35. Determine (i) the output voltage, (ii) the maximum and minimum inductor currents and (iii) the output voltage ripple. For what value of load resistance this converter will operate in discontinuous conduction mode?
Openchetan shidling asked 6 years ago • 
1307 views0 answers-1 votes
Explain how the power factor correction can be achieved in power supplies?
Answeredchetan shidling asked 6 years ago • 
891 views1 answers0 votes
Design the forward converter to have continuous inductor current which is having the output 5V with the input 170V. The output current is 5A.The output voltage is less than the 1%. Choose the transformer turns ratio, switching frequency and calculate the duty cycle. Given rc=10E-5 / C
Openchetan shidling asked 6 years ago • 
874 views0 answers0 votes
Explain the operation of the current fed converter with relevant waveforms and derive the relationship between input and output voltage
Openchetan shidling asked 6 years ago • 
823 views0 answers0 votes
Explain with neat circuit operation of half bridge converter with relevant waveforms?
Openchetan shidling asked 6 years ago • 
962 views0 answers0 votes
Explain with neat equivalent circuits, the operation of the fly-back converter in DCM with relevant waveforms.
Openchetan shidling asked 6 years ago • 
897 views0 answers0 votes
The current fed converter has an input inductor Lx that is large enough. The source voltage is 30 V and the load resistor is 6 Ω. The duty ratio of each switch is 0.7 and the transformer turns ratio is 2. Assume that source current is constant. Determine (i) the output voltage (ii) current in Lx and (iii) maximum voltage across each switch.
Openchetan shidling asked 6 years ago • 
1016 views0 answers0 votes
PWM techniques will result in increased filter requirement in the inverter circuit?
Answeredchetan shidling asked 6 years ago • 
844 views1 answers0 votes
The frequency of the control signal is 60Hz, when frequency modulation index is 17. What is frequency of carrier signal.(Answer in number only)
Answeredchetan shidling asked 6 years ago • 
858 views1 answers0 votes
A bipolar PWM will produce a 75 V rms 60 Hz output from 150 V dc source. What is the required amplitude modulation index?
Answeredchetan shidling asked 6 years ago • 
1079 views1 answers-2 votes
PWM Technique will reduce the total harmonic distortion in output signal.
Answeredchetan shidling asked 6 years ago • 
893 views1 answers0 votes
What is the amplitude of the modulating signal when amplitude modulation index is 0.8 and amplitude of carrier signal is 100.
Answeredchetan shidling asked 6 years ago • 
860 views1 answers0 votes
What is a over modulation?
Answeredchetan shidling asked 6 years ago • 
887 views1 answers0 votes
Formula for Frequency Modulation Index?
Answeredchetan shidling asked 6 years ago • 
984 views1 answers0 votes
Formula for amplitude modulation index?
Answeredchetan shidling asked 6 years ago • 
841 views1 answers0 votes
What is a synthesis of a sinusoidal output by PWM?
Openchetan shidling asked 6 years ago • 
838 views0 answers0 votes
What is a amplitude modulation?
Answeredchetan shidling asked 6 years ago • 
906 views1 answers0 votes
What is the use of Fourier series?
Answeredchetan shidling asked 6 years ago • 
868 views1 answers0 votes
Why diodes are used in full bridge inverter?
Openchetan shidling asked 6 years ago • 
931 views0 answers0 votes
What is a one leg of a switched-Mode DC-AC Inverter?
Openchetan shidling asked 6 years ago • 
849 views0 answers0 votes
What is a switched mode inverter?
Openchetan shidling asked 6 years ago • 
884 views0 answers0 votes
What is a motor drive with unidirectional power flow?
Openchetan shidling asked 6 years ago • 
851 views0 answers0 votes
What are the applications of switched mode inverter?
Answeredchetan shidling asked 6 years ago • 
892 views1 answers0 votes
What are the objectives of switched mode inverters?
Answeredchetan shidling asked 6 years ago • 
1126 views1 answers0 votes
What is a contaminated signals?
Answeredchetan shidling asked 6 years ago • 
956 views1 answers0 votes
Why there is a requirement of variable frequency?
Answeredchetan shidling asked 6 years ago • 
896 views1 answers0 votes
What is a control signal?
Openchetan shidling asked 6 years ago • 
889 views0 answers0 votes
What is a carrier signal?
Answeredchetan shidling asked 6 years ago • 
1178 views1 answers0 votes
Fly back converter is derived from which converter?
Answeredchetan shidling asked 6 years ago • 
893 views1 answers0 votes
The push-pull converter has parameters Vs=30V, D=0.3, Np/Ns =2, R=6Ω, Lx=0.5mH, C=50µF and switching frequency is 10kHz.
Answeredchetan shidling asked 6 years ago • 
2459 views2 answers1 votes
Dc power supply Qs
OpenPrashant asked 6 years ago • 
941 views0 answers0 votes
Design a forward converter to meet the following specifications: Source voltage =170V, output voltage= 48 V, output power = 150 W. Assume initial duty ratio of the switch to be 0.35, N1/N3 = 1, switching frequency to be 300kHz.
Answeredchetan shidling asked 6 years ago • 
1393 views1 answers0 votes
The forward converter has parameters Vs=100V, D=0.35, N1/N2 =1, N1/N3 = 1 , R=20 Ω, Lm=1mH, Lx=70µH and C=33µF and switching frequency is 150kHz.
Answeredchetan shidling asked 6 years ago • 
2619 views1 answers0 votes
What is double ended forward converter?
Answeredchetan shidling asked 6 years ago • 
991 views1 answers-1 votes
What is a tertiary winding in forward converter?
Openchetan shidling asked 6 years ago • 
990 views0 answers0 votes
What is a Freewheeling diode?
Answeredchetan shidling asked 6 years ago • 
924 views1 answers0 votes
What is the average power drawn out of the input source Vg during steady-state operation of the converter (in watts)?
AnsweredChetan Shidling asked 6 years ago • 
3039 views0 answers-5 votes
The fly-back converter has following parameters Vs = 36 V, D=0.4, N1/N2 =2 , R=20 Ω, Lm= 100 µH, and C = 50 µF and the switching Frequency is 100kHz.
Answeredchetan shidling asked 6 years ago • 
2936 views4 answers-1 votes
Design a fly back converter for an input of 24 V and output of 40 W at 40 V. Assume initial duty ratio of the switch to be 0.4, Operating frequency to be 100kHz. Net change in inductor current to be 40 percent of average inductor current.
Answeredchetan shidling asked 6 years ago • 
1274 views2 answers0 votes
What is the boundary between continous and discontinous mode of operation?
Answeredchetan shidling asked 6 years ago • 
1044 views2 answers0 votes
What is the steady-state average output voltage (expressed in volts)?
AnsweredChetan Shidling asked 6 years ago • 
1425 views0 answers0 votes
What is full form of diac in power Electronics?
AnsweredChetan Shidling asked 6 years ago • 
937 views1 answers0 votes
Assumptions to be made when designing the switched mode power supply?
Answeredchetan shidling asked 6 years ago • 
1023 views1 answers0 votes
What are the features of the high frequency transformer?
Answeredchetan shidling asked 6 years ago • 
839 views1 answers0 votes
What are isolated and non isolated dc power supply?
Answeredchetan shidling asked 6 years ago • 
871 views1 answers0 votes
What is a multilevel inverter?
Openchetan shidling asked 6 years ago • 
902 views0 answers0 votes
Why SMPS is required? What are the applications of switched mode power supply?
Answeredchetan shidling asked 6 years ago • 
932 views1 answers0 votes
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