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This paper describes a new configuration of the single-phase seven-level voltage source inverter. The proposed inverter based on modified H-bridge converter. The inverter is built of conventional H-bridge inverter and two bidirectional switches and three bulk capacitor banks. To validate the proposed inverter, a low power prototype inverter has been designed and implemented; analytical, simulation...
This paper proposes a new extended boost quasi Z-source inverter (ZSI) and a simple modulation and control method based on one-cycle control for controlling a grid connected PEM fuel cell energy system. ZSIs are gaining popularity. Similarly one-cycle controllers are becoming popular due to their simplicity, ease of implementation and fast response. However, this control method has not been developed...
A detailed comparison of integrated CMOS charge amplifiers is presented in this work. Conventional topologies, along with new ones, have been fabricated in a CMOS test chip prototype and their measured performance compared in terms of sensitivity, PSRR, and frequency response. As a result of this work, a complete library of fabricated CMOS charge amplifiers is presented and the performance tradeoffs...
This paper describes theoretical as well as practical aspects in designing low phase noise LC CMOS oscillators. It starts with an overview of the different oscillator performance parameters found in a typical oscillator specification sheet. It also describes the LC-tank oscillation phenomena by analyzing a simplified LC oscillator circuit. Oscillator phase noise analysis is then introduced as a logical...
This paper proposes an input-paralleled output-paralleled half-bridge converter based on single half-bridge converter, which is very suitable for the low output voltage and large output current application. All modules share a common capacitor-leg, that can reduce the number of main circuitpsilas capacitors and make topology simple. The traits and rules of combination converter are introduced and...
Because of the shortage of the IGCTpsilas series connection to obtain 6 kV output, the medium voltage drive (MVD) based on the H bridge neutral point clamped three-level inverter is introduced. Consequently, the arising of the common mode voltage (CMV) is discussed, the equivalent CMV circuit is deduced, and the common-mode circle currents are proposed in this paper. With the analysis of the relationship...
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