GATE EE 2003 | Inverters Question 25 | Power Electronics

GATE EE 2003

MCQ (Single Correct Answer)

-0.6

An inverter has a periodic output voltage with the output waveform as shown in figure GATE EE 2003 Power Electronics - Inverters Question 19 English

GATE EE 2003 Power Electronics - Inverters Question 19 English

With reference to the output waveform given in figure, the output of the converter will be free form $${5^{th}}$$ harmonic when

$$\alpha = {72^ \circ }$$

$$\alpha = {36^ \circ }$$

$$\alpha = {150^ \circ }$$

$$\alpha = {120^ \circ }$$

GATE EE 2003

MCQ (Single Correct Answer)

-0.6

An inverter has a periodic output voltage with the output waveform as shown in figure GATE EE 2003 Power Electronics - Inverters Question 20 English

GATE EE 2003 Power Electronics - Inverters Question 20 English

When the conduction angle $$\alpha = {120^0},$$ the $$rms$$ fundamental component of the output voltage is

$$0.78$$ $$V$$

$$1.10$$ $$V$$

$$0.90$$ $$V$$

$$1.27$$ $$V$$

GATE EE 2002

MCQ (Single Correct Answer)

-0.6

Fig. $$(a)$$ shows an inverter circuit with a $$dc$$ source voltage $${V_{s}}$$. The semiconductor switches of the inverter are operated in such a manner that the pole voltages $${V_{10}}$$ and $${V_{20}}$$ are as shown in fig.
Fig. $$(b).$$ What is the rms value of the pole-to-pole voltage $${V_{12}}$$: GATE EE 2002 Power Electronics - Inverters Question 21 English 1

GATE EE 2002 Power Electronics - Inverters Question 21 English 1

GATE EE 2002 Power Electronics - Inverters Question 21 English 2

$${{{V_s}\phi } \over {\pi \sqrt 2 }}$$

$${V_s}\sqrt {{\phi \over \pi }} $$

$${V_s}\sqrt {{\phi \over {2\pi }}} $$

$${{{V_s}} \over \pi }$$

GATE EE 2001

MCQ (Single Correct Answer)

-0.6

A single - phase full-bridge voltage source inverter feeds a purely inductive load, as shown in figure. when $${T_1},{T_2},\,\,\,\,\,{T_3},{T_4}$$ are power transistors and $${D_1},{D_2},\,{D_3},{D_4}$$ are feedback diodes. The inverter is operated in square-wave mode with a frequency of $$50$$ $$Hz.$$ If the average load current is zero, what is the time duration of conduction of each feedback diode in a cycle? GATE EE 2001 Power Electronics - Inverters Question 22 English