Strating Characteristics by Chopper-Controlled DC Seriesmotor with Nonlinear Magnetization

Resonant DC Link in PWM AC Chopper

This paper proposes a resonant dc link in PWM ac chopper. This can solve the spike problems and also reduce the switching loss. The configuration and PWM pattern of the proposed technique are presented. The simulation results are used to confirm the theory. Keywords—PWM ac chopper and Resonant dc link.

Basic Characteristics of Digitally Controlled Boost Type Dc-dc Converter

This paper presents the basic characteristics of the digitally controlled boost type dc-dc converter. The static and dynamic characteristics of the dc-dc converter with the digital PID control are discussed. Especially, it is examined that the A-D conversion timing and anti-aliasing filter’s cut-off frequency affect the dynamic and static characteristics. As a result, when the anti-aliasing fil...

Nonlinear dynamic of the multicellular chopper

In this paper, the dynamics of multicellular chopper are considered. The model is described by a continuous time three--dimensional autonomous system. Some basic dynamical properties such as Poincar'e mapping, power spectrum and chaotic behaviors are studied. Analysis results show that this system has complex dynamics with some interesting characteristics.

Combined Bidirectional Buck-Boost DC-DC Chopper-Mode Inverters With High-Frequency Link

Nonlinear phenomena study in serial multicell chopper

In this paper, chaotic behavior study of a five-cells chopper when it is associated to a nonlinear load is reported. The model of such system is described by a piece-wise smooth six dimensional non-autonomous system. Then, some basic dynamical properties, such as Poincaré mapping, first return map and continuous spectrum are investigated to highlight the main characteristic of this particular c...