A buck converter is to allow an input voltage between 22 V and 40 V, and provides tightly regulated 12 V output. The circuit should use an output capacitor large enough to guarantee +- 1% output ripple at most. The switching frequency is 50 kHz, and the load can range between 10 W and 500 W. Power levels below 200 W are unusual, and inductors are large and costly. It has been suggested that the inductor be chosen so that L >= Lcrit if Pout > 200 W. (a) Draw a circuit diagram that can meet these requirements. What is the range ofduty ratios when Pout > 200 W? (b) What value of inductance will ensure L >= Lcrit for Pout > 200 W? (c) Is it possible to maintain Vout = 12 V at the minimum 10 W load? If so, what duty ratio range will be needed at Pout = 10 W?If not, suggest a way to correct the trouble without changing the value of L.
A buck converter is to allow an input voltage between 22 V and 40 V, and provides tightly regulated 12 V output. The circuit should use an output capacitor large enough to guarantee +- 1% output ripple at most. The switching frequency is 50 kHz, and the load can range between 10 W and 500 W. Power levels below 200 W are unusual, and inductors are large and costly. It has been suggested that the inductor be chosen so that L >= Lcrit if Pout > 200 W. (a) Draw a circuit diagram that can meet these requirements. What is the range ofduty ratios when Pout > 200 W? (b) What value of inductance will ensure L >= Lcrit for Pout > 200 W? (c) Is it possible to maintain Vout = 12 V at the minimum 10 W load? If so, what duty ratio range will be needed at Pout = 10 W?If not, suggest a way to correct the trouble without changing the value of L.
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...
Related questions
Question
A buck converter is to allow an input voltage between 22 V and 40 V, and provides
tightly regulated 12 V output. The circuit should use an output capacitor large enough
to guarantee +- 1% output ripple at most. The switching frequency is 50 kHz, and the
load can range between 10 W and 500 W. Power levels below 200 W are unusual, and
inductors are large and costly. It has been suggested that the inductor be chosen so
that L >= Lcrit if Pout > 200 W.
(a) Draw a circuit diagram that can meet these requirements. What is the range ofduty ratios when Pout > 200 W?
(b) What value of inductance will ensure L >= Lcrit for Pout > 200 W?
(c) Is it possible to maintain Vout = 12 V at the minimum 10 W load? If so, what duty ratio range will be needed at Pout = 10 W?If not, suggest a way to correct the trouble without changing the value of L.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 6 steps with 1 images
Knowledge Booster
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.Recommended textbooks for you
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Introductory Circuit Analysis (13th Edition)
Electrical Engineering
ISBN:
9780133923605
Author:
Robert L. Boylestad
Publisher:
PEARSON
Delmar's Standard Textbook Of Electricity
Electrical Engineering
ISBN:
9781337900348
Author:
Stephen L. Herman
Publisher:
Cengage Learning
Programmable Logic Controllers
Electrical Engineering
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education
Fundamentals of Electric Circuits
Electrical Engineering
ISBN:
9780078028229
Author:
Charles K Alexander, Matthew Sadiku
Publisher:
McGraw-Hill Education
Electric Circuits. (11th Edition)
Electrical Engineering
ISBN:
9780134746968
Author:
James W. Nilsson, Susan Riedel
Publisher:
PEARSON
Engineering Electromagnetics
Electrical Engineering
ISBN:
9780078028151
Author:
Hayt, William H. (william Hart), Jr, BUCK, John A.
Publisher:
Mcgraw-hill Education,