Marc Cousineau

Learn More
Pulsewidth modulation (PWM) strategies and methods for multilevel converters are usually developed for series converters. One of the aims of this paper is to show that they may be applied to parallel converters using interleaving techniques, given that these converters also have multilevel characteristics. PWM methods based on carriers' disposition and on(More)
Parallel converter architecture using intercell transformers is one of the most adapted architecture for low-voltage, high-current and fast transient power conversion applications. Interleaved buck converter with intercell transformers main interest is the current ripple reduction in each converter arms which is not the case with non-coupled inductor(More)
In this paper, a modular approach for carrier generation dedicated to interleaved converters is presented. These analog triangular carriers reach, in few hundreds of microseconds, a perfect shift in phase using an original self-alignment method. This property is obtained whatever the number of the converter carriers more than or equal to three. Main(More)
A pulsed current-mode converter specifically designed for the supply of dielectric barrier discharge excimer lamps is proposed in this paper. The power supply structure is defined on the basis of causality criteria that are justified by the structure of the lamp model. The converter operation is studied, and its design criteria are established using(More)
Dielectric barrier discharge (DBD) lamps, being capacitive loads, must be associated with bidirectional current sources for an appropriate control of the transferred power. Pulsed current source supplies, which are known to offer very interesting performances, require specific power switches that are able to manage bidirectional voltage and unidirectional(More)
A new 5-level non-differential PFC topology with fault tolerant capability is presented and compared to known structures. It is derived from a 3-level double-boost PFC. The series-connection of the two low-voltage switching-cells decoupled by a single flying capacitor provides a fault-tolerant capability and a post failure operation increasing the(More)
In order to study transient response and output voltage regulation in multiphase coupled buck converter, it is proposed two models of interleaved coupled buck converter. These two models provide accurate current and voltage waveforms for any value of duty cycle. In the first part, the two proposed models are described in details. In the second part, it is(More)
A completely decentralized solution (real masterless) for parallel converter control is presented. A control module dedicated to each switching cell, communicating with its neighboring modules, is presented in detail. It is able to provide the computation of the common mode duty cycle, the balancing of the leg currents and the proper phase shift for the(More)
In this paper, an original control method used to regulate a micro-converter is presented. A network of micro-converters is dedicated to photovoltaic or bio-battery power conversion applications. This network combines several micro-converters in parallel to provide a high output current. Each micro-converter (5V, 2A) use a multi-leg transformer with several(More)