First of all, in this paper, the topology and operation of the three-phase three-level Z-source inverter based on neutral-point-clamped (Z-NPC) are studied. Moreover, different combinations of permissible switching states and control signals are explained for this inverter. In this paper, the topology of the three-phase three-level Z-NPC inverter is extended for an n-level state. Also, a combin...

Multi-stage analog-to-digital converters are the dominant choice in applications that require both high speed and high accuracy, such as video and wideband radio [1]. Non-idealities such as static device mismatch and dynamic timing mismatch, in different architectures of multi-steps analog to digital converter affect the redundancy and performance at the output of an instrument. Redundant sign ...

In the present paper an H∞ control design is presented for DC-DC Ćuk converter using its average model. Lyapunov equation is used to derivate the controller and to estimate the L2 gain too. Theoretical result is supported by numerical simulations. Key-Words: H∞ control, PWM, Lyapunov equation, Ćuk converter.

A study of the fundamental of operation of a three-phase AC-DC power converter that uses Zero-Voltage Transition (ZVT) together with Space Vector Pulse Width Modulation (SVPWM) is presented. The converter is basically an active rectifier divided into two converters: a matrix converter and an H bridge, which transfer energy through a high-frequency transformer, resulting in a modular AC-DC wirel...

given a non-abelian finite group $g$, let $pi(g)$ denote the set of prime divisors of the order of $g$ and denote by $z(g)$ the center of $g$. thetextit{ prime graph} of $g$ is the graph with vertex set $pi(g)$ where two distinct primes $p$ and $q$ are joined by an edge if and only if $g$ contains an element of order $pq$ and the textit{non-commuting graph} of $g$ is the graph with the vertex s...