A GaN-based 100 W two-stage wireless power transmitter with inherent current source output

2016 ◽  
Author(s):  
Ling Jiang ◽  
Farshid Tamjid ◽  
Chongwen Zhao ◽  
Daniel Costinett ◽  
Aly Fath ◽  
...  
Keyword(s):  
Current Source ◽  
Wireless Power ◽  
Two Stage

scholarly journals Comprehensive Review on Main Topologies of Impedance Source Inverter Used in Electric Vehicle Applications

2020 ◽  
Vol 11 (2) ◽  
pp. 37 ◽  
Author(s):  
Daouda Mande ◽  
João Pedro Trovão ◽  
Minh Cao Ta
Keyword(s):  
Power Systems ◽  
Power Electronics ◽  
Electric Vehicles ◽  
High Efficiency ◽  
Current Source ◽  
Input Voltage ◽  
Industrial Applications ◽  
Voltage Source ◽  
Two Stage ◽  
And Performance

Power electronics play a fundamental role for electric transportation, renewable energy conversion and many other industrial applications. They have the ability to help achieve high efficiency and performance in power systems. However, traditional inverters such as voltage source and current source inverters present some limitations. Consequently, many research efforts have been focused on developing new power electronics converters suitable for many applications. Compared with the conventional two-stage inverter, Z-source inverter (ZSI) is a single-stage converter with lower design cost and high efficiency. It is a power electronics circuit of which the function is to convert DC input voltage to a symmetrical AC output voltage of desired magnitude and frequency. Recently, ZSIs have been widely used as a replacement for conventional two-stage inverters in the distributed generation systems. Several modifications have been carried out on ZSI to improve its performance and efficiency. This paper reviews the-state-of-art impedance source inverter main topologies and points out their applications for multisource electric vehicles. A concise review of main existing topologies is presented. The basic structural differences, advantages and limitations of each topology are illustrated. From this state-of-the-art review of impedance source inverters, the embedded quasi-Z-source inverter presents one of the promising architectures which can be used in multisource electric vehicles, with better performance and reliability. The utilization of this new topology will open the door to several development axes, with great impact on electric vehicles (EVs).

scholarly journals On Beat Frequency Oscillation of Two-Stage Wireless Power Receivers

2020 ◽  
Vol 35 (12) ◽  
pp. 12741-12751
Author(s):  
Kerui Li ◽  
Siew-Chong Tan ◽  
Ron Shu Yuen Hui
Keyword(s):  
Beat Frequency ◽  
Wireless Power ◽  
Frequency Oscillation ◽  
Two Stage

scholarly journals Source of megaampere current with the rise time ∼100 ns on the basis of explosive magnetic generator

2019 ◽  
Vol 489 (4) ◽  
pp. 355-357
Author(s):  
A. A. Bazanov ◽  
E. I. Bochkov ◽  
S. G. Garanin ◽  
P. V. Duday ◽  
A. A. Zimenkov ◽  
...  
Keyword(s):  
Current Pulse ◽  
Rise Time ◽  
Current Source ◽  
Two Stage ◽  
Explosive Magnetic Generator ◽  
Ignition Threshold ◽  
Z Pinch ◽  
Thermonuclear Ignition ◽  
Magnetic Generator

To achieve a thermonuclear ignition threshold in the scheme of indirect irradiation of Z‑pinch by X‑radiation, it is necessary to implode the liner by the current with the amplitude 65 МА for the time 100 ns. The currents with such parameters can be achieved with the use of super-power disk explosive magnetic generators and a two-stage current pulse sharpening system based on foil electrically exploded current opening switches in a form of a serpentine. The implementation of the explosive current source with a rise time of 100 ns is advisable to be carried out in stages by increasing the magnitude of current. The results of the first-stage experiments, in which the current with the amplitude of 5 MA was produced on the basis of the helical explosive magnetic generator in the load of 10 nH for the time of 110 ns, are presented.

Improved‐efficiency quasi‐two‐stage current‐source‐mode SIMO LED driver

2019 ◽  
Vol 12 (12) ◽  
pp. 3286-3294 ◽  
Author(s):  
Zheng Dong ◽  
Xiaolu Lucia Li ◽  
Chi Kong Tse
Keyword(s):  
Current Source ◽  
Two Stage ◽  
Led Driver

scholarly journals Study on Battery Charging Converter for MPPT Control of Laser Wireless Power Transmission System

Electronics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1745 ◽  
Author(s):  
Seongjun Lee ◽  
Namgyu Lim ◽  
Wonseon Choi ◽  
Yongtak Lee ◽  
Jongbok Baek ◽  
...  
Keyword(s):  
Laser Beam ◽  
Power Transmission ◽  
Current Source ◽  
Boost Converter ◽  
Maximum Power ◽  
Voltage Source ◽  
Small Signal ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Pv Module

Herein, the voltage and current output characteristics of a laser photovoltaic (PV) module applied to a wireless power transmission system using a laser beam are analyzed. First, an experiment is conducted to obtain the characteristic data of the voltage and current based on the laser output power of the laser PV module, which generates the maximum power from the laser beam at a wavelength of 1080 nm; subsequently, the small-signal voltage and current characteristics of the laser PV module are analyzed. From the analysis results, it is confirmed that the laser PV module has a characteristic in which the maximum power generation point varies according to the power level of the laser beam. In addition, similar to the solar cell module, it is confirmed that the laser PV module has a current source and a voltage source region, and it shows a small signal resistance characteristic having a negative value as the operating point goes to the current source region. In addition, in this paper, by reflecting these electrical characteristics, a method for designing the controller of a power converter capable of charging a battery while generating maximum power from a PV module is proposed. Since the laser PV module corresponds to the input source of the boost converter used as the power conversion unit, the small-signal transfer function of the boost converter, including the PV module, is derived for the controller design. Therefore, by designing a controller that can stably control the voltage of the PV module in the current source, the maximum power point, and voltage source regions defined according to the output characteristics of the laser PV module, the maximum power is generated from the PV module. Herein, a systematic controller design method for a boost converter for laser wireless power transmission is presented, and the proposed method is validated based on the simulation and experimental results of a 25-W-class boost converter based on a microcontroller unit control.

Sign in / Sign up

Export Citation Format

Share Document