A 5GHz low power consumption LNA has been designed here for the receiver front end using 90nm CMOS technology. The ‘current reuse’ technique has been used here to reuse the bias current for two amplifier stages stacked upon each other. An inverter type amplifier acts the second stage to a common source first stage thereby giving a good gain for the amplifier. The gain achieved is around 13dB wi...

This paper presents a new control scheme for three levels NPC Inverter to boost up the input dc voltage and give three levels AC output voltage with less harmonic distortion in a single stage.Recently, Single stage high voltage pick up support inverter is getting ubiquity in applications like sun powered PV, energy component, UPS systems and so on. As of late, single stage voltage support multi...

In this paper, a systematical controller design method for a two-stage grid-connected photovoltaic power conditioning system (PCS) is proposed. For a pre-stage boost converter to achieve the stable operation in the entire region of solar arrays (SAs), the digital resistive current (DRC) mode controller is proposed. This algorithm is very simple to implement with a digital controller and there i...

A novel topology, Current-Sourcing Push-Pull Parallel-Resonance Inverter (CS-PPRI) was investigated theoretically and experimentally. The proposed power stage is built around a current fed push pull inverter. The main features of the proposed inverter is a load independent output current and Zero Voltage Switching (ZVS). It is suggested that the proposed CS-PPRI is a viable al ternat ive for re...

In this paper, a simplified space–vector pulse width modulation technique for multilevel inverters is proposed. This method is based on the simplification of the space–vector diagram of a five level inverter into that of a three level inverter. In turn, the three level inverter space vector diagram is simplified into that of two level inverter. Hence, the algorithm of five level space-vector pu...

A new kind of buck in buck, boost in boost grid tied inverter is analysed in this paper. In this family of inverters only a single power stage works at high frequency at a time. This reduces the losses due to switching and hence improves efficiency. There is only minimum filtering inductance in the power loop and over filtering does not take place. The analysis of the operating modes of the inv...