Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > In a step down chopper using pulse width modu...
Start Learning for Free
In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency is
- a)333.33
- b)250
- c)500
- d)1000
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
In a step down chopper using pulse width modulation, Ton = 3 x 10-3 an...
.Free Test
FREE
| Start Free Test |
Community Answer
In a step down chopper using pulse width modulation, Ton = 3 x 10-3 an...
**Explanation:**
A step-down chopper, also known as a buck converter, is a type of DC-DC converter that converts a higher voltage level to a lower voltage level by controlling the duty cycle of the switching device. Pulse width modulation (PWM) is a technique used to control the duty cycle of the chopper.
The duty cycle (D) of a chopper is defined as the ratio of the on-time (Ton) to the total switching period (T). Mathematically, it can be expressed as:
D = Ton / T
Given that Ton = 3 x 10^(-3) s and Toff = 1 x 10^(-3) s, we can calculate the duty cycle as:
D = Ton / (Ton + Toff)
= (3 x 10^(-3)) / ((3 x 10^(-3)) + (1 x 10^(-3)))
= (3 x 10^(-3)) / (4 x 10^(-3))
= 0.75
The duty cycle represents the time the chopper is "on" (Ton) compared to the total switching period. In this case, the chopper is "on" for 0.75 or 75% of the time.
The chopping frequency (f) of the chopper is defined as the reciprocal of the total switching period (T). Mathematically, it can be expressed as:
f = 1 / T
Given that T = Ton + Toff, we can calculate the chopping frequency as:
T = Ton + Toff
= (3 x 10^(-3)) + (1 x 10^(-3))
= 4 x 10^(-3)
f = 1 / T
= 1 / (4 x 10^(-3))
= 250 Hz
Therefore, the chopping frequency is 250 Hz, which corresponds to option B.
A step-down chopper, also known as a buck converter, is a type of DC-DC converter that converts a higher voltage level to a lower voltage level by controlling the duty cycle of the switching device. Pulse width modulation (PWM) is a technique used to control the duty cycle of the chopper.
The duty cycle (D) of a chopper is defined as the ratio of the on-time (Ton) to the total switching period (T). Mathematically, it can be expressed as:
D = Ton / T
Given that Ton = 3 x 10^(-3) s and Toff = 1 x 10^(-3) s, we can calculate the duty cycle as:
D = Ton / (Ton + Toff)
= (3 x 10^(-3)) / ((3 x 10^(-3)) + (1 x 10^(-3)))
= (3 x 10^(-3)) / (4 x 10^(-3))
= 0.75
The duty cycle represents the time the chopper is "on" (Ton) compared to the total switching period. In this case, the chopper is "on" for 0.75 or 75% of the time.
The chopping frequency (f) of the chopper is defined as the reciprocal of the total switching period (T). Mathematically, it can be expressed as:
f = 1 / T
Given that T = Ton + Toff, we can calculate the chopping frequency as:
T = Ton + Toff
= (3 x 10^(-3)) + (1 x 10^(-3))
= 4 x 10^(-3)
f = 1 / T
= 1 / (4 x 10^(-3))
= 250 Hz
Therefore, the chopping frequency is 250 Hz, which corresponds to option B.
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Top Courses for Electrical Engineering (EE)View all
Question Description
In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer?.
In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2025 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer?.
Solutions for In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer?, a detailed solution for In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In a step down chopper using pulse width modulation, Ton = 3 x 10-3 and Toff = 1 x 10-3 s. The chopping frequency isa)333.33b)250c)500d)1000Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup