Discrete Time Averaging of Non-Ideal PWM DC-DC Converters Operating in DCM with Feedback

1
N. M. Adamali Shah
N. M. Adamali Shah
2
Mohammed S. Al-Numay
Mohammed S. Al-Numay
1 King Saud University

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Discrete Time Averaging of Non-Ideal PWM DC-DC Converters Operating in DCM with Feedback Banner
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This paper presents a one-cycle-average (OCA) discrete-time model for PWM switched dc-dc converters operating in discontinuous conduction mode (DCM). The closed-loop system is considered in the presence of circuit parasitic. This model provides the exact OCA values of the output voltage and inductor current considering the conduction losses in the switching stage components. It also provides the exact discrete-time mathematical representation of the average values of other internal signals with little increase in simulation time. It is compared to some existing averaged models in terms of accuracy and speed through simulation results of boost converter.

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No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

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Not applicable for this article.

N. M. Adamali Shah. 2013. \u201cDiscrete Time Averaging of Non-Ideal PWM DC-DC Converters Operating in DCM with Feedback\u201d. Global Journal of Research in Engineering - F: Electrical & Electronic GJRE-F Volume 13 (GJRE Volume 13 Issue F5): .

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Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

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v1.2

Issue date

April 18, 2013

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English

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This paper presents a one-cycle-average (OCA) discrete-time model for PWM switched dc-dc converters operating in discontinuous conduction mode (DCM). The closed-loop system is considered in the presence of circuit parasitic. This model provides the exact OCA values of the output voltage and inductor current considering the conduction losses in the switching stage components. It also provides the exact discrete-time mathematical representation of the average values of other internal signals with little increase in simulation time. It is compared to some existing averaged models in terms of accuracy and speed through simulation results of boost converter.

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Discrete Time Averaging of Non-Ideal PWM DC-DC Converters Operating in DCM with Feedback

Mohammed S. Al-Numay
Mohammed S. Al-Numay
N. M. Adamali Shah
N. M. Adamali Shah King Saud University

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