Characterization of a High-Power, High-Frequency, Soft-Switching Power Converter for EMC Considerations

2001 ◽  
Author(s):  
S. T. Li ◽  
J. B. McGee ◽  
P. M. McGinnis ◽  
J. H. Schukantz ◽  
Jr.
Keyword(s):  
High Power ◽  
High Frequency ◽  
Power Converter ◽  
Soft Switching ◽  
Switching Power

Study and Implementation of Partial Resonant High-Frequency AC-Link Inverter Operating in Soft-Switching Condition

2021 ◽  
pp. 2150238
Author(s):  
Abdelkarim Aouiti ◽  
Hajer Marzougui ◽  
Faouzi Bacha
Keyword(s):  
High Frequency ◽  
Power Flow ◽  
Power Converter ◽  
Soft Switching ◽  
Correct Operation ◽  
Fundamental Properties ◽  
Dc Power ◽  
Dspace 1104 ◽  
Converter Topology ◽  
High Frequency Ac

In this paper, a high-frequency AC-link DC–AC converter is presented with detailed analysis. This converter is used as an interface between a dc power source and a grid. The studied converter is a universal power converter which consists of two bridges separated by an AC-link; each bridge is connected to a source or it feeds a load. The link of this converter contains a parallel pair inductance-capacitor. The inductance is used to stock/supply energy and for the link capacitor, it allows to perform soft switching during turning on/turning off of the switches. The studied converter has considerable advantages compared to the other topologies. Its fundamental properties are, especially, the compactness, reliability and efficiency which it ensures. Also, it guarantees longer lifetime and the possibility to transfer power in the two power flow directions. In this talk, the principles of the ac-link inverter operation are clearly explained in this paper. Simulation results, under MATLAB/SIMULINK, are shown to validate the correct operation and the efficiency of the proposed converter topology. The control algorithm is, also, experimentally implemented using a dSPACE 1104 control board.

EXTRACTION OF GATE CAPACITANCE OF HIGH-FREQUENCY AND HIGH-POWER GaN HEMTs BY MEANS OF CELLULAR MONTE CARLO SIMULATIONS

2011 ◽  
Vol 20 (03) ◽  
pp. 423-430
Author(s):  
DIEGO GUERRA ◽  
FABIO ALESSIO MARINO ◽  
STEPHEN GOODNICK ◽  
DAVID FERRY ◽  
MARCO SARANITI
Keyword(s):  
Monte Carlo ◽  
High Power ◽  
High Frequency ◽  
Small Signal ◽  
Small Signal Analysis ◽  
Gan Hemt ◽  
Full Band ◽  
Cellular Monte Carlo ◽  
Dc Characterization

A high-frequency a high-power GaN HEMT was analyzed using our full band Cellular Monte Carlo (CMC) simulator, in order to extract small signal parameters and figures of merit, and to correlate them to carrier dynamics and distribution inside the device. A complete RF and DC characterization of the device was performed using experimental data to calibrate the few adjustable parameters of the simulator. Then, gate-related capacitances, such as Cg, Cgd, and Cgs, were directly and indirectly extracted combining small-signal analysis and DC characterization.

Topological Structure of Main Circuit Inverter Based on Soft-Switching Technology and Parameters Adaptive

2013 ◽  
Vol 846-847 ◽  
pp. 732-736
Author(s):  
Jun Yan Zeng ◽  
Guang Di Li ◽  
Xue Liang ◽  
Jiao Wang ◽  
Zhi Da Li
Keyword(s):  
High Frequency ◽  
Topological Structure ◽  
Control Method ◽  
Soft Switching ◽  
Switching Power ◽  
Switching Losses

This paper presents a new topology of main circuit based on soft switching technology of ZVS-PWM. At present, hard switching is applied in most inverters. Because the switching power isnt equal to zero, a great number of losses on the switching are generated when the switching at a high frequency. To solve the fault of hard switching, this paper presents that apply the inverter circuits based on soft switching technology of ZVS-PWM to high frequency APF, which will decrease switching losses and noise greatly. The proposed topology and operation principle of the control method is discussed in detail, finally simulated results verify the effect of research.

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