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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Performance Measurement and Analysis of Single-phase AC-DC Controlled Bridge Rectifier

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1. What is the function of a controlled bridge rectifier?

a: To convert AC voltage to DC voltage Explanation

Explanation

b: To amplify AC voltage Explanation

Explanation

c: To generate high-frequency AC voltage Explanation

Explanation

d: To store electrical energy Explanation

Explanation

2. Which of the following devices is controllable with firing pulses?

a: Diodes Explanation

Explanation

b: Transistors Explanation

Explanation

c: Thyristors Explanation

Explanation

d: Zener diodes Explanation

Explanation

3. The firing angle in a controlled bridge rectifier determines:

a: The frequency of the output waveform Explanation

Explanation

b: The phase delay between the AC input and the DC output Explanation

Explanation

c: The peak value of the output voltage Explanation

Explanation

d: The capacitance of the filter capacitor Explanation

Explanation

4. Which of the following scheme is more appropriate to realize desired output voltage in a single-phase controlled bridge rectifier?

a: Varying the firing angle of the thyristors Explanation

Explanation

b: Varying the supply voltage frequency Explanation

Explanation

c: Varying the load resistance Explanation

Explanation

d: Changing the number of diodes in the bridge Explanation

Explanation

5. The main advantage of using a single-phase controlled bridge rectifier over a single-phase uncontrolled rectifier is:

a: Higher output voltage Explanation

Explanation

b: Lower ripple voltage Explanation

Explanation

c: Ability to control the output voltage Explanation

Explanation

d: Reduced number of components Explanation

Explanation

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