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The compensator design is closely related to the transient response achieved by the closed loop converter. So, the representation of the aforementioned transient response while designing the compensator is a powerful optimization tool. However, in order to represent the transient response, the small signal model of the power stage must be completely characterized. When the power stage is not determined...
In order to reduce developing times when designing a power converter, it is very useful to have an initial design criterion that lead to a stable feedback loop. In this paper a new concept for power electronics compensator design and optimization has been developed. This concept provides the different combinations of crossover frequency and phase margin which lead to stable solutions. Other optimization...
Nowadays, "black box" behavioral models of power converters are becoming interesting for system level simulation of power electronic based systems. Hence, new modeling and identification procedures become needed. In this paper, an easy modeling method and identification procedure based on a transient response analysis is presented. Using this method, a behavioral model with reduced order...
In last years, the number of power systems with multiple converters and loads is increasing. Simulation tools are usually needed in order to carry out the analysis of the stability and the large signal response of these power systems. When the power systems are composed of commercial converters whose internal structure is unknown, the use of behavioral models is necessary in order to carry out the...
At present, digital control solutions are becoming more attractive than analogue implementations in some power converter applications owing to easy design of complex control strategies and control reconfigurability. The digital implementation of an asynchronous linear-nonlinear (LnL) compensator to improve the dynamic response of interleaved buck converters is proposed and validated. It is important...
Microprocessors are exigent loads that require specific power supplies, voltage regulator modules (VRM), that provide a well-regulated voltage, high efficiency and very good dynamic response. Multiphase interleaving synchronous buck converters are one of the best topological alternatives. In this paper a new approach to the non-linear control of multiphase VRMs is proposed. Thanks to the non-linear...
This paper proposes the use of a single-stage PFC converter to feed those cost-effective applications which must comply with class D limits of IEC 61000-3-2 in the range of 500 W. The circuit operation, design guidelines of the converter have been presented for both European and universal line-voltage range. Finally, experimental results are provided in order to check the performance of the proposed...
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