Virtual Labs

Tools

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Performance measurement and analysis of isolated DC-DC push-pull regulator

Choose difficulty:

Beginner

Intermediate

Advanced

Refer Fig. 1 to answer the following questions.

Fig. 1. Circuit configuration of push-pull converter.

1. The feasible range of duty ratio for the switches (Q₁ and Q₂) is:

a: (0-10) % Explanation

Explanation

b: (0-80) % Explanation

Explanation

c: (0-48) % Explanation

Explanation

d: (0-100) % Explanation

Explanation

2. The frequency of the inductor current compared to the frequency of switches is?

a: Double Explanation

Explanation

b: Half Explanation

Explanation

c: Equal Explanation

Explanation

d: Thrice Explanation

Explanation

3. The purpose of transformer in push-pull converter is?

a: Voltage ratio transformation and electrical isolation Explanation

Explanation

b: Electrical isolation and impedance matching Explanation

Explanation

c: Energy storage only Explanation

Explanation

d: Inverting the output voltage polarity Explanation

Explanation

4. The output voltage expression of a push-pull converter is:

a: V_O = n(1-D)V_G Explanation

Explanation

b: V_O = DV_G Explanation

Explanation

c: V_O = V_G/D Explanation

Explanation

d: V_O = nDV_G Explanation

Explanation

5. The gating scheme of the two switches (Q₁ and Q₂) is:

a: Synchronized PWM signals Explanation

Explanation

b: 180° phase shifted PWM signals with sufficient dead time Explanation

Explanation

c: Complementary PWM signals Explanation

Explanation

d: Synchronized PWM signals with sufficient dead time Explanation

Explanation

Community Links Sakshat Portal Outreach Portal FAQ: Virtual Labs

AGPL 3.0 & Creative Commons (CC BY-NC-SA 4.0)