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Predictive Trailing-Edge Modulation Average Current Control in DC-DC ConvertersDRAGHICI, D. , LASCU, D.
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current programmed control, predictive current control, trailing-edge modulation, average current control
current(20), power(19), control(15), mode(13), converters(10), switching(8), signal(6), ecce(6), digital(6), apec(6)
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About this article
Date of Publication: 2013-11-30
Volume 13, Issue 4, Year 2013, On page(s): 111 - 116
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2013.04019
Web of Science Accession Number: 000331461300019
SCOPUS ID: 84890197165
The paper investigates predictive digital average current control (PDACC) in dc/dc converters using trailing-edge modulation (TEM). The study is focused on the recurrence duty cycle equation and then stability analysis is performed. It is demonstrated that average current control using trailing-edge modulation is stable on the whole range of the duty cycle and thus design problems are highly reduced. The analysis is carried out in a general manner, independent of converter topology and therefore the results can then be easily applied for a certain converter (buck, boost, buck-boost, etc.). The theoretical considerations are confirmed for a boost converter first using the MATLAB program based on state-space equations and finally with the CASPOC circuit simulation package.
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