Question 5
a) Draw the circuit of a Three-phase bridge inverter using a
Y-connected load and explain its operation using 180 degree
conduction clearly showing the gating sequence and the
corresponding output line voltages for each phase. (10)
b) For the Y-connected load determine the line to neutral
voltages for the three modes of operations. Draw the equivalent
circuits for each mode and then draw the phase voltage waveforms
for the 180-degree conduction. (7)
Re-submission of
question.
Consider the full-bridge single-phase inverter with input voltage
equal to 200V. This inverter is controlled by sinusoidal PWM
technique with amplitude modu- lation
index equal to 0.5 to generate a 3- level half-wave symmetry
waveform with frequency equal to 50
Hz.
e)Calculate the amplitude of fundamen- tal
frequency.
f) Draw the waveforms of refrence and
carrier
signals.
g) Obtain the waveform of output
voltage.
h)Design the trigger signals of switches. Thanks for
your help.
Derive the expressions of the average load voltage and current
in single-phase full-wave controlled rectifier (bridge rectifier)
and resistive load. Draw the waveforms of supply voltage, output
voltage, output current and thyristor current.
In a single-phase full-wave controlled rectifier (bridge
rectifier) and resistive load, it is desired to get an average load
voltage of 50 V. Determine the firing angle if the ac supply
voltage is 150 V. If the average load power is 300W, calculate the
average load...
Re-submission of question. Consider the full-bridge Single-phase
inverter with input voltage equal to 200V. This inverter is
controlled by Sinusoidal PWM technique with amplitude modulation
index equal to 0.5 to generate a 3-level half-wave symmetry with
frequency equal to 50Hz. (a) Draw its power circuit [solved by an
expert] (b) Obtain its switching table [solved by an expert] (c)
Calculate the width of each generated pulses at the output [solved
by an expert] (d) Calculate the RMS value of output...
Please use a transformer, bridge full-wave rectifier and filter
capacitor to design a power supply circuit that converts 60Hz-110V
AC to 12V DC.
Please (1) draw a circuit diagram,
(2) calculate the value of the filter capacitor C so that the
ripple at the output current of 2A needs to be less than 0.1V,
(3) select the transformer output voltage and estimate the peak
voltage of the DC power supply.
Using a wheatstone bridge, solve for Vout for quarter, half, and
full bridges and determine which one is most sensitive. Draw a
diagram showing how you would place your strain gauges on a beam
for each configuration. Discuss how you should use the right kind
of strain gauge with appropriate G values to maximize the
sensitivity.
Give the Vs and Vo waveforms of a three phase bridge controlled
rectifier. Draw different waveforms for angles 30,60,90,120 degrees
for each a resistive load and then a RL load. Clearly label period
in degrees on X axis.