Adaptive Modulation Control for Multiple-Phase Voltage Regulators

Xiao, Shangyang; Qiu, Weihong; Miller, Greg; Tie-jun, WU; Batarseh, Issa

doi:10.1109/tpel.2007.912947

Cited by 14 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The idea of AVP is to maintain the supply voltage within the specified range in such a way, that for full load, the voltage is slightly below and for no load -slightly above the nominal level [6][7][8]. It may be accomplished by proper design, resulting in obtaining a constant and sufficient-ly low closed-loop output impedance over a wide frequency range [7][8][9]. The closed-loop output impedance Z cl of converter, i.e.…”

Section: Specific Requirements For Output Characteristics Of Power Comentioning

confidence: 99%

“…There are many efforts presented in the literature, to achieve the satisfactory output impedance of pulse power converters, especially BUCK type. The first, typical way is the sophisticated design of control loops in converters [6][7][8][9]13]. The second way is based on modifications of the basic structure of the power stage [5].…”

Section: Specific Requirements For Output Characteristics Of Power Comentioning

confidence: 99%

See 1 more Smart Citation

Output characteristics of step-down (Buck) power converter

Janke¹,

Bączek²,

Walczak³

2012

Bulletin of the Polish Academy of Sciences: Technical Sciences

View full text Add to dashboard Cite

Abstract. The output characteristics of switched-mode dc-dc buck power converter are discussed. The shape of output characteristics is especially important for converters used for supplying modern processors. An output impedance is usually used for description of output characteristics. Many efforts are described in the literature to obtain the satisfastory features of closed-loop output impedance. Another approach, presented in the paper, is based on the concept of the output voltage response corresponding to the load conductance change, and is expressed by hr transmittance. Simulations of output characteristics of the buck converter in frequency and in time-domain have been performed for the ideal case as well as for a more realistic situation, with the parasitic resistances of converter elements included. The measurement results differ substantially from characteristics calculated for an ideal converter and are in good consistency with simulations including parasitics.

show abstract

Section: Specific Requirements For Output Characteristics Of Power Comentioning

confidence: 99%

Section: Specific Requirements For Output Characteristics Of Power Comentioning

confidence: 99%

Output characteristics of step-down (Buck) power converter

Janke¹,

Bączek²,

Walczak³

2012

Bulletin of the Polish Academy of Sciences: Technical Sciences

View full text Add to dashboard Cite

show abstract

“… Sophisticated design of control loops in the converter [13,14,15,16]  Modifications of the basic structure of the power stage [17][18]. The starting point of the first method is the precise description of the converter, in particular the use of accurate formulas for open-loop output impedance.…”

Section: Introductionmentioning

confidence: 99%

On the extraction of input and output impedance of PWM DC-DC converters

Asadi¹,

Eguchi²

2019

Balkan Journal of Electrical and Computer Engineering

View full text Add to dashboard Cite

The buck, buck-boost and boost converter, are the most popular types of DC-DC converters. The input/output characteristics of these converters operating in Continuous Current Mode (CCM) is the object of considerations in this paper. The input impedance of converter helps the designer to select a suitable energy source for the converter. The internal impedance of selected input energy source must be quite lower than the input impedance of converter in order to avoid any voltage drop. The output impedance of DC-DC converters must be quite small in order to supply the load with high current demand. So, extraction of input/output characteristics of DC-DC converters is an important task and helps the designer to decide about the performance of system. Extraction of input/output characteristics is using pencil-and-paper analysis is quite tedious and error prone. This paper show how input/output impedance of DC-DC converters can extracted with the aid of MATLAB ® programming. This paper can be used as a tutorial on the extraction of input/output impedance of DC-DC converters.Index Terms-DC-DC converter, input impedance of DC-DC converters, output characteristics, Pulse Width Modulation (PWM).

show abstract

“…This reduction yields to lower volume and weight what beneflts the power density of the converter. The problem of increasing the number of phases can be solved by digital control implementations [5]- [7], [9]- [12], where additional advantages can be taken to optimize the efflciency of the converter [6], the bandwidth of the control loop [7], or improving current balance between phases [11], [13].…”

Section: Introduction S Witch-mode Converters Manage the Energy Inmentioning

confidence: 99%

“…Digital controllers based on specific hardware, such as field-programmable gate arrays (FPGAs), provide an easy way to genérate many signáis [5], [7], [9], [10], [24], while the accuracy is higher than analog controllers. In this converter, a digital shifter for the pulses has been designed (see Fig.…”

Section: Introduction S Witch-mode Converters Manage the Energy Inmentioning

confidence: 99%

Differential-Mode EMI Reduction in a Multiphase DCM Flyback Converter

Zumel

García

Oliver

et al. 2009

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

Abstract-Switched converters are a source of electromagnetic interference (EMI) due to the hard switching and abrupt edges in the current and voltage waveforms. Multiphase converters can reduce the EMI at the source, minimizing the conducted EMI generation, without changing dramatically the normal operation of the circuit. Input fllter can be greatly reduced, radiated EMI is lower, and internal EMI problems are minimized. This paper is focused on exploring multiphase converters as a topological technique to reduce conducted differential-mode EMI generation at the source, considering some nonidealities of the multiphase converter.Index Terms-Electromagnetic conductive interference, power conversión, power conversión harmonics.

show abstract

Adaptive Modulation Control for Multiple-Phase Voltage Regulators

Cited by 14 publications

References 10 publications

Output characteristics of step-down (Buck) power converter

Output characteristics of step-down (Buck) power converter

On the extraction of input and output impedance of PWM DC-DC converters

Differential-Mode EMI Reduction in a Multiphase DCM Flyback Converter

Contact Info

Product

Resources

About