Power-supply efficiency. A certain power supply operates from an AC line and delivers 48 VDC (essentially constant) at a current ranging up to 25 A. As the 48-VDC load current increased from 0 to 25 A, data was taken on the power factor and current drawn from the constant-voltage 120 VAC (rms) source. This data is presented in Table 10.1. For each line of the table, calculate Adoing aan

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...
icon
Related questions
Question
10.1. Power-supply efficiency. A certain power supply operates from an AC line
and delivers 48 VDC (essentially constant) at a current ranging up to 25 A.
As the 48-VDC load current increased from 0 to 25 A, data was taken on the
power factor and current drawn from the constant-voltage 120 VAC (rms)
source. This data is presented in Table 10.1. For each line of the table,
calculate
(a) net PIN = V₁N(rms)(rms) (power factor),
(b) POUT = VOUT OUT de
(c) percent efficiency n = (PouT/PIN) x 100%, and
X
OUT
(d) power dissipated in the supply PDISS = PIN-POUT For what value of out-
put current is the efficiency highest? For what value of output current
is the dissipated power highest?
TABLE 10.1 Power-supply Efficiency Test Results
AC current (rms) Power factor (%)
0.1
75
0.5
80
5
85
90
90
10
13.9
Load current (A)
0
0.6
8.5
19.1
25
Transcribed Image Text:10.1. Power-supply efficiency. A certain power supply operates from an AC line and delivers 48 VDC (essentially constant) at a current ranging up to 25 A. As the 48-VDC load current increased from 0 to 25 A, data was taken on the power factor and current drawn from the constant-voltage 120 VAC (rms) source. This data is presented in Table 10.1. For each line of the table, calculate (a) net PIN = V₁N(rms)(rms) (power factor), (b) POUT = VOUT OUT de (c) percent efficiency n = (PouT/PIN) x 100%, and X OUT (d) power dissipated in the supply PDISS = PIN-POUT For what value of out- put current is the efficiency highest? For what value of output current is the dissipated power highest? TABLE 10.1 Power-supply Efficiency Test Results AC current (rms) Power factor (%) 0.1 75 0.5 80 5 85 90 90 10 13.9 Load current (A) 0 0.6 8.5 19.1 25
Expert Solution
steps

Step by step

Solved in 2 steps with 4 images

Blurred answer
Knowledge Booster
HVDC
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,