Single Phase Full Bridge Converter

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What is the purpose of the auto transformer in a servo stabilizer?

To correct voltage fluctuations in the input supply
To provide a fixed tap for the buck boost transformer (correct)
To drive the servo motor
To step up or step down the voltage

What is the primary function of a switched mode power supply?

To stabilize output voltage and current (correct)
To force input current to follow sinusoidal input voltage
To convert AC input to DC
To convert DC to AC

What is the primary function of a servo stabilizer?

To control the power factor of the input supply
To regulate the output voltage of a converter
To maintain constant supply voltage to different equipment (correct)
To step up the input voltage

What is the output of the comparator in a single phase full bridge converter during the positive cycle?

Gating signal g1 (C) Signup and view all the answers

What is the purpose of a high frequency transformer in an SMPS?

To isolate the output from the input (A) Signup and view all the answers

What is the role of the servo motor in a servo stabilizer?

To move the arm of the auto transformer (B) Signup and view all the answers

What is the purpose of the control circuit in a servo stabilizer?

To detect voltage fluctuations in the input supply (B) Signup and view all the answers

What is the frequency range of the output AC in an SMPS inverter stage?

Above 20 KHz (A) Signup and view all the answers

What is the purpose of a filter capacitor in an SMPS rectifier stage?

To produce an unregulated DC supply (D) Signup and view all the answers

What is the purpose of the buck boost transformer in a servo stabilizer?

To correct voltage fluctuations in the input supply (D) Signup and view all the answers

What is the purpose of special control techniques in an SMPS?

To correct power factor (C) Signup and view all the answers

What is the purpose of the inverter stage in an SMPS?

To convert DC to AC (A) Signup and view all the answers

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' (C) Signup and view all the answers

What is the purpose of pulse width modulation in an inverter circuit?

To regulate the output voltage and cope with DC input voltage (D) Signup and view all the answers

What is the advantage of single pulse width modulation technique?

It is the most efficient method of pulse width modulation control (D) Signup and view all the answers

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 (D) Signup and view all the answers

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 (D) Signup and view all the answers

What is the function of the SCR T1 in the RLC circuit?

To turn ON and build up current in the RLC circuit (A) Signup and view all the answers