M. K. Hamzah

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The use of direct AC-AC converter based on matrix converter topology is restricted due to inherent limitations. One of those limitations is the absence of the natural free-wheeling path afforded in conventional converter topology through the use of diodes. In this work a simple commutation strategy for implementation in single phase matrix converter(More)
This paper reviews low power AC-DC converter in different techniques capable of developing high efficiency of energy consumption in many applications. By using low power AC-DC converter, the size of whole system integrated circuit could be reduced. However, the requirements of CMOS converter that required low input voltage and low voltage drop of MOS(More)
This paper presents work on modeling & simulation of single-phase matrix converter (SPMC) as a frequency changer modulated by the sinusoidal pulse width modulation (SPWM) subjected to passive load condition. The model was implemented using MATLAB/simulink with the SimPowerSystem Block Set. Comparisons with Pspice are made. The insulated gate bipolar(More)
This paper presents improved switching strategy sequence of single-phase matrix converter (SPMC) as a direct AC-AC converter modulated by the sinusoidal pulse width modulation (SPWM). The strategy was implemented using MATLAB/Simulink with the SimPower System Block Set. Comparisons with PSPICE are made. The insulated gate bipolar transistor (IGBT) was used(More)
In this work the single-phase matrix converter (SPMC) topology for cycloconverter operation are proposed for direct AC-AC conversion with step-down frequency operation. The well-known sinusoidal pulse width modulation (SPWM) scheme is used to synthesize the output. A Xilinx field programmable gate array (FPGA) was used to implement the controlling algorithm(More)
Smart home research requires study of psychological characteristics of home user. People follow some specific patterns in their life style. Inhabitant activity classification plays a vital role to predict smart home events. The paper proposed a multiagent system to track the user for task isolation. The system is composed of cooperative agents which works(More)
This paper presents the SPMC topology that operates as an uninterruptible power supply circuit (UPS) incorporating unity power factor control. A single circuit is developed that performs both the rectifier and inverter operation may also incorporate active power filter operation. Commutation strategies are also implemented with reduction in spikes, a common(More)
The current trend set by service providers of enhancing the degree of provisions in IP networks while maintaining the optimum quality, has promoted many research activities. These activities include those which aim to introduce improved quality of services for popular Internet services and applications. In this paper, quality of services (QoS) of video(More)
This paper proposes advanced single-phase AC-DC converter using single-phase matrix converter (SPMC) topology incorporating with active power filter function. The topology is also capable of incorporating many other features for controlled rectifier operation that includes; bidirectional, regenerative and dual converter capabilities. The PWM technique was(More)
This paper is concerned on Xilinx FPGA design for SPWM control of Single-Phase Matrix Converter (SPMC). The Sinusoidal Pulse Width Modulation (SPWM) technique is used to synthesize the output voltage. The power circuit uses the Insulated Gate Bipolar Transistor (IGBT) as switching device in the SPMC implementation. Safe-commutation strategy was incorporated(More)