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...
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.
Design a full adder using discrete logic devices in LogicWorks.
Make the full adder into a component (or subcircuit) and save in a
personal library for future use.Cascade sixteen full adders to
create a 16-bit ripple-carry adder. Make the sixteen-bit ripple
carry adder into a component and store in your library.Connect
hexkeypads from the LogicWorks IOconnect library to the inputs of
the adder to test the circuit. Connect hexdisplays from the same
library to provide the results for testing.Determine how...