This paper describes a new design for direct sliding mode method with a high switching frequency using the PD-PI type sliding surface applied to a negative output Luo converter worked in continuous current mode for applications required constant power source such as aerospace applications, medical equipment and etc. Because of the output power and line changes, the converter model is also nonli...

Impedance is an important parameter used to characterize electronic circuits, components, and the materials make components. (Z) generally defined as total opposition a device or circuit offers flow of alternating current (AC) at given frequency. A fast wide - range balanced theory method designed. In implementation , impedance component based on GIC ( General immittance converter ) system. Whi...

The impedance analysis has been proposed and proved to be an effective way analyze the grid-connected stability of Voltage Source Converter (VSC) based energy conversion systems. Most existing analyzes are discussed on vector oriented control, while there few discussions about Direct Power Control (DPC). In this paper, modeling approach VSC using DPC is firstly analyzed, which fills gap convert...

This paper is based on the design and analysis of Total Harmonic Distortion(THD) and power factor for Compact Fluorescent Lamp. In the proposed electronic ballast Buck Boost converter operates in the continuous conduction mode, which provides a constant DC voltage to drive the lamp.By choosing the switching frequency more than the resonant frequency the zero voltage switching is achieved in res...

Abstract Digital-to-analog converters are crucial building blocks for telecommunication applications. For this kind of applications, the traditional static performance requirements do not apply. The dynamic performance is of the greatest importance. This paper discusses the aspects of the performance of CMOS digital-to-analog converters and models the influence of non-idealities of circuit comp...

In this paper direct AC to DC is converted by proposed model from low AC voltage to high DC voltage in single stage conversion. And this paper presents an efficient AC to DC power that avoids the bridge rectification and directly converts low AC input voltage to high DC output voltage. This proposed converter consists boost converter and buck-boost converter both are connected in parallel to pr...

This paper presents a control strategy for fuel cell/energy storage power generation system during voltage sag conditions. The hybrid DC power sources are connected to grid using power electronic converters include DC-DC converter and grid connected voltage source inverter. The power from hybrid power sources is controlled during voltage sag by designing of control strategy for DC-DC converter....

One among several equally important subsystems of a standalone photovoltaic (PV) system is the circuit for maximum power point tracking (MPPT). There are several algorithms that may be used for it. In this paper we choose such an algorithm based on the maximum simplicity criteria. Then we make some small modifications to it in order to make it more robust. We synthesize a circuit built out of e...

This paper presents a self-powered piezoelectric energy harvesting circuit using frequency conversion. A vibration energy harvesting principle is introduced. Due to a capacitive characteristic of the piezoelectric vibration transducer, an energy harvesting circuit is proposed for matching the capacitive impedance. The energy harvesting circuit consists of a matching circuit with up-conversion, ...