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In a type A chopper, the maximum value of Ripple current is
- a)Directly proportional to chopping frequency only
- b)Directly proportional to the circuit inductance only
- c)Directly proportional to chapping frequency and Inversely proportional to the circuit inductance
- d)Inversely proportional to chapping frequency and the circuit inductance.
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
In a type A chopper, the maximum value of Ripple current isa)Directly ...
Concept:
Steady state ripple
The peak to peak ripple current has maximum value when duty cycle ∝ = 0.5
In case 4FL ≫ R, then tan
Calculation
∴ maximum value of Ripple current is inversely proportional to chopping frequency and the circuit Inductance.
The peak to peak ripple current has maximum value when duty cycle ∝ = 0.5
In case 4FL ≫ R, then tan
Calculation
∴ maximum value of Ripple current is inversely proportional to chopping frequency and the circuit Inductance.
Most Upvoted Answer
In a type A chopper, the maximum value of Ripple current isa)Directly ...
In a type A chopper, the maximum value of ripple current is inversely proportional to the chopping frequency and the circuit inductance. Let's understand this relationship in detail:
Type A Chopper:
A type A chopper is a simple circuit that consists of a switch (usually a transistor) and an inductor connected in series with the load. The switch is turned on and off at a high frequency to control the average value of the output voltage.
Ripple Current:
Ripple current refers to the fluctuating current that flows through the inductor in a chopper circuit. It occurs due to the switching action of the transistor. The magnitude of ripple current directly affects the performance and efficiency of the chopper circuit.
Relationship with Chopping Frequency:
The chopping frequency is the rate at which the switch is turned on and off. It determines the speed at which the energy is transferred to the load. When the chopping frequency increases, the ON and OFF times of the switch decrease, resulting in shorter intervals for energy transfer. As a result, the ripple current increases because the inductor has less time to store and release energy.
Relationship with Circuit Inductance:
The circuit inductance plays a crucial role in determining the ripple current magnitude. Inductance is a measure of an inductor's ability to store and release energy. A higher inductance value means the inductor can store more energy, resulting in a lower ripple current. Conversely, a lower inductance value means the inductor can store less energy, resulting in a higher ripple current.
Combined Relationship:
The maximum value of ripple current in a type A chopper is determined by the combined effect of chopping frequency and circuit inductance.
- When the chopping frequency increases, the ripple current increases.
- When the circuit inductance increases, the ripple current decreases.
Therefore, the maximum value of ripple current is inversely proportional to the chopping frequency and the circuit inductance. As the chopping frequency increases or the circuit inductance decreases, the ripple current magnitude increases, and vice versa.
This relationship is important to consider while designing and analyzing chopper circuits, as it affects the overall performance and efficiency of the system.
Type A Chopper:
A type A chopper is a simple circuit that consists of a switch (usually a transistor) and an inductor connected in series with the load. The switch is turned on and off at a high frequency to control the average value of the output voltage.
Ripple Current:
Ripple current refers to the fluctuating current that flows through the inductor in a chopper circuit. It occurs due to the switching action of the transistor. The magnitude of ripple current directly affects the performance and efficiency of the chopper circuit.
Relationship with Chopping Frequency:
The chopping frequency is the rate at which the switch is turned on and off. It determines the speed at which the energy is transferred to the load. When the chopping frequency increases, the ON and OFF times of the switch decrease, resulting in shorter intervals for energy transfer. As a result, the ripple current increases because the inductor has less time to store and release energy.
Relationship with Circuit Inductance:
The circuit inductance plays a crucial role in determining the ripple current magnitude. Inductance is a measure of an inductor's ability to store and release energy. A higher inductance value means the inductor can store more energy, resulting in a lower ripple current. Conversely, a lower inductance value means the inductor can store less energy, resulting in a higher ripple current.
Combined Relationship:
The maximum value of ripple current in a type A chopper is determined by the combined effect of chopping frequency and circuit inductance.
- When the chopping frequency increases, the ripple current increases.
- When the circuit inductance increases, the ripple current decreases.
Therefore, the maximum value of ripple current is inversely proportional to the chopping frequency and the circuit inductance. As the chopping frequency increases or the circuit inductance decreases, the ripple current magnitude increases, and vice versa.
This relationship is important to consider while designing and analyzing chopper circuits, as it affects the overall performance and efficiency of the system.
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In a type A chopper, the maximum value of Ripple current isa)Directly proportional to chopping frequency onlyb)Directly proportional to the circuit inductance onlyc)Directly proportional to chapping frequency and Inversely proportional to the circuit inductanced)Inversely proportional to chapping frequency and the circuit inductance.Correct answer is option 'D'. Can you explain this answer?
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