18 Questions
What is the purpose of the auto transformer in a servo stabilizer?
To provide a fixed tap for the buck boost transformer
What is the primary function of a switched mode power supply?
To stabilize output voltage and current
What is the primary function of a servo stabilizer?
To maintain constant supply voltage to different equipment
What is the output of the comparator in a single phase full bridge converter during the positive cycle?
Gating signal g1
What is the purpose of a high frequency transformer in an SMPS?
To isolate the output from the input
What is the role of the servo motor in a servo stabilizer?
To move the arm of the auto transformer
What is the purpose of the control circuit in a servo stabilizer?
To detect voltage fluctuations in the input supply
What is the frequency range of the output AC in an SMPS inverter stage?
Above 20 KHz
What is the purpose of a filter capacitor in an SMPS rectifier stage?
To produce an unregulated DC supply
What is the purpose of the buck boost transformer in a servo stabilizer?
To correct voltage fluctuations in the input supply
What is the purpose of special control techniques in an SMPS?
To correct power factor
What is the purpose of the inverter stage in an SMPS?
To convert DC to AC
What happens to the load current in an underdamped RLC circuit when SCR T1 is turned ON and T2 is off?
It reaches a peak value and decays to 0 at point 'a'
What is the purpose of pulse width modulation in an inverter circuit?
To regulate the output voltage and cope with DC input voltage
What is the advantage of single pulse width modulation technique?
It is the most efficient method of pulse width modulation control
What is the function of the capacitor in the RLC circuit?
To store charge during one half cycle and release the same amount of charge during next half cycle
What is the result of the capacitor storing charge during one half cycle and releasing the same amount of charge during next half cycle?
The positive half cycle of current is identical with negative half cycle
What is the function of the SCR T1 in the RLC circuit?
To turn ON and build up current in the RLC circuit
Understand the generation of gating signals and output voltage in a single phase full bridge converter. Learn how the reference signal and triangular wave interact to produce gating signals.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
