Proceedings ArticleDOI
Designing control loop for PWM converters in dc-to-dc power conversion systems
Syam Kumar Pidaparthy,Byungcho Choi +1 more
- pp 5094-5100
TLDR
The control design strategy of the uncoupled dc-to-dc converters is formulated to offer good and robust closed-loop performance when the converters are coupled with the actual source and load subsystems.Abstract:
This paper presents a methodology to deal with the control design for PWM converters in dc-to-dc power conversion systems. The concept of uncoupled dc-to-dc converter is established, which allows dc-to-dc converters to be designed independently from the source and load impedances. The control design strategy of the uncoupled dc-to-dc converters is formulated to offer good and robust closed-loop performance when the converters are coupled with the actual source and load subsystems. A peak current-mode controlled buck converter is used as an example throughout this paper to verify the proposed control design technique. We compare the control design of the uncoupled dc-to-dc converters with that of the converters coupled with resistive and non-resistive loads. The validity of the conventional design intended for a resistive load is also be discussed.read more
Citations
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Journal ArticleDOI
Input Impedances of PWM DC-DC Converters: Unified Analysis and Application Example
TL;DR: In this article, the input impedances of three basic PWM dc-to-dc converters are derived with both voltage mode control and current mode control in a factorized time-constant form.
Journal ArticleDOI
Stabilizing Effects of Load Subsystem in Multistage DC-to-DC Power Conversion Systems
TL;DR: In this article, the impacts of the load subsystem on stability and performance of the upstream converter in multistage Dc-to-Dc power conversion systems were investigated, and an appropriate load subsystem can be constructed to provide both stability and intended performance for the downstream converter at the brink of instability before being coupled with the load.
Proceedings ArticleDOI
A load impedance specification of dc power systems for desired dc link dynamics and reduced conservativeness
TL;DR: In this article, a new load impedance specification for multi-stage dc power conversion systems is proposed, which avoids drawbacks of the existing specifications, such as the lack of explicit connections to the dc link dynamics and unnecessary conservativeness.
Proceedings ArticleDOI
Output Impedance Analysis of PWM DC-to-DC Converters
TL;DR: This paper presents the analytical expressions of the output impedances of three basic PWM dc-to-dc converters operating with current mode control and provides a comprehensive reference for future dynamic interaction analyses requiring knowledge of the converters output impedance.
Proceedings ArticleDOI
Stabilizing effects of load subsystem in multi-stage dc-to-dc power conversion systems
TL;DR: In this paper, the impacts of the load subsystem on stability and performance of the upstream converter in multi-stage dc-to-dc power conversion systems are investigated, and an appropriate load subsystem could offer both stability and predictable performance.
References
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