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You and your friends have planned to stay at a remote cabin in the woods to study for your second EEEN313 test. The cabin does not have mains power, but has a solar installation which outputs between 12V and 18V DC. There are three of you in the cabin, each with a laptop that needs to be charged during the day, but not all laptops will necessarily be on at the same time. The laptops all run off 20V, one is 45W, one 55W and the last 65W (you can assume resistive loads). Design a converter that will stay in continuous conduction mode throughout the various charging loads and can supply 20V to the laptops. Your switching frequency will be 30kHz and the output voltage ripple should be no more than 5% (the output capacitor has an ESR of 0.202)

You and your friends have planned to stay at a remote cabin in the woods to study for your second EEEN313 test. The cabin does not have mains power, but has a solar installation which outputs between 12V and 18V DC. There are three of you in the cabin, each with a laptop that needs to be charged during the day, but not all laptops will necessarily be on at the same time. The laptops all run off 20V, one is 45W, one 55W and the last 65W (you can assume resistive loads). Design a converter that will stay in continuous conduction mode throughout the various charging loads and can supply 20V to the laptops. Your switching frequency will be 30kHz and the output voltage ripple should be no more than 5% (the output capacitor has an ESR of 0.202)

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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You and your friends have planned to stay at a remote cabin in the woods to study for your second EEEN313 test. The cabin does not have mains power, but has a solar installation which outputs between 12V and 18V DC. There are three of you in the cabin, each with a laptop that needs to be charged during the day, but not all laptops will necessarily be on at the same time. The laptops all run off 20V, one is 45W, one 55W and the last 65W (you can assume resistive loads). Design a converter that will stay in continuous conduction mode throughout the various charging loads and can supply 20V to the laptops. Your switching frequency will be 30kHz and the output voltage ripple should be no more than 5% (the output capacitor has an ESR of 0.202)
Transcribed Image Text:You and your friends have planned to stay at a remote cabin in the woods to study for your second EEEN313 test. The cabin does not have mains power, but has a solar installation which outputs between 12V and 18V DC. There are three of you in the cabin, each with a laptop that needs to be charged during the day, but not all laptops will necessarily be on at the same time. The laptops all run off 20V, one is 45W, one 55W and the last 65W (you can assume resistive loads). Design a converter that will stay in continuous conduction mode throughout the various charging loads and can supply 20V to the laptops. Your switching frequency will be 30kHz and the output voltage ripple should be no more than 5% (the output capacitor has an ESR of 0.202)
Expert Solution
Step 1

Given :

Solar voltage available =Vi =12 to 18 V DC

Required voltage for laptop =Vo =20 V

Available load = 45 W, 55 W and 65 W

Switching frequency =f =30 kHz

Output voltage ripple =∆V0V0= 5 % =0.05

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