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b) As shown in Figure 1(a), a DC source, Vs=(250+0.01*XY) V supplies power to a resistive load RL=100 through an ideal switch S. The average voltage across the load RL is (50+0.01*XY) V and the switch S is operated at 200 kHz. Vs Ľ Figure 1 (i) Find the power delivered to the load (PL), the total power supplied by the source (Ps) and efficiency of the power supply. (ii) Find the duty cycle of the switch S and sketch the load voltage. (iii) If the same power is supplied to the same load through a rheostat Rr, as shown in Figure 1(b). Find the resistance of R, and the efficiency of the power supply. Comment on the benefits of using a power electronics switch for power supply control. S (a) x = 1, y = 7 R₁ Vs Rr (b) RL

b) As shown in Figure 1(a), a DC source, Vs=(250+0.01*XY) V supplies power to a resistive load RL=100 through an ideal switch S. The average voltage across the load RL is (50+0.01*XY) V and the switch S is operated at 200 kHz. Vs Ľ Figure 1 (i) Find the power delivered to the load (PL), the total power supplied by the source (Ps) and efficiency of the power supply. (ii) Find the duty cycle of the switch S and sketch the load voltage. (iii) If the same power is supplied to the same load through a rheostat Rr, as shown in Figure 1(b). Find the resistance of R, and the efficiency of the power supply. Comment on the benefits of using a power electronics switch for power supply control. S (a) x = 1, y = 7 R₁ Vs Rr (b) RL

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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b) As shown in Figure 1(a), a DC source, Vs=(250+0.01*XY) V supplies power to a resistive load RL=100 through an ideal switch S. The average voltage across the load RL is (50+0.01*XY) V and the switch S is operated at 200 kHz. Vs T Figure 1 (i) Find the power delivered to the load (PL), the total power supplied by the source (Ps) and efficiency of the power supply. (ii) Find the duty cycle of the switch S and sketch the load voltage. (iii) If the same power is supplied to the same load through a rheostat Rr, as shown in Figure 1(b). Find the resistance of R, and the efficiency of the power supply. Comment on the benefits of using a power electronics switch for power supply control. (a) x = 1, y = 7 RL Vs Rr (b) R₁
Transcribed Image Text:b) As shown in Figure 1(a), a DC source, Vs=(250+0.01*XY) V supplies power to a resistive load RL=100 through an ideal switch S. The average voltage across the load RL is (50+0.01*XY) V and the switch S is operated at 200 kHz. Vs T Figure 1 (i) Find the power delivered to the load (PL), the total power supplied by the source (Ps) and efficiency of the power supply. (ii) Find the duty cycle of the switch S and sketch the load voltage. (iii) If the same power is supplied to the same load through a rheostat Rr, as shown in Figure 1(b). Find the resistance of R, and the efficiency of the power supply. Comment on the benefits of using a power electronics switch for power supply control. (a) x = 1, y = 7 RL Vs Rr (b) R₁
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