A5102845782- Advanced DC-DC Converters
- Silicon Carbide Semiconductor Technologies
- Wireless Power Transfer Systems
- Advanced Computational Techniques and Applications
- Multilevel Inverters and Converters
- Advanced Power Amplifier Design
- Advanced Sensor and Control Systems
- Fault Detection and Control Systems
- Traffic Prediction and Management Techniques
- Learning Styles and Cognitive Differences
- Advanced Manufacturing and Logistics Optimization
- Enhanced Oil Recovery Techniques
- Vehicle emissions and performance
- Autonomous Vehicle Technology and Safety
- Wireless Sensor Networks and IoT
- Higher Education and Teaching Methods
- Power Transformer Diagnostics and Insulation
- Water Quality Monitoring Technologies
- Electromagnetic Compatibility and Noise Suppression
- GaN-based semiconductor devices and materials
- Educational Technology and Assessment
- Analog and Mixed-Signal Circuit Design
- Advanced Algorithms and Applications
- Experimental Learning in Engineering
- Advanced Measurement and Detection Methods
Hunan Institute of Engineering
2024
Zhejiang University
2014-2018
Zhejiang University of Science and Technology
2011
Shaanxi University of Technology
2009-2010
Southwest Jiaotong University
2010
Yanshan University
2009
The series resonant soft-switching topology is widely used in high-density DCX products due to its zero switching loss. But, the conventional converter a dual end topology, which results complex circuit structure and high cost. In order simplify reduce cost, novel cell named input current fed (ICF) proposed this paper, can be applied single-ended forward topologies. zero-voltage-switching (ZVS) on quasi-zero-current-switching (ZCS) off for switch are both achieved. According duality theory...
A simple current-feed single-switch forward resonant converter with secondary diode-clamping is proposed for low-power high-density bus applications in this paper. The quasi-zero-voltage-switching turn-on and quasi-zero-current-switching (ZCS) turn-off switch are both achieved. Due to the quasi-ZCS , high voltage spike traditional single a reset winding much reduced. small diode connected output capacitor utilized clamp stress of switches. operating principle analyzed MHz 66 W 24 V-to-12 V...
The commercialization of the mild hybrid is impeded by demands a lightweight, compact yet efficient bidirectional DC/DC converter between 48V system and conventional 12V system. With Si-based design, operating frequency typically less than 70 kHz, resulting in bulky with 1-2kW/L power density no more 95% efficiency. In this paper, bi-directional 3.5kW 48V/12V designed using low voltage GaN devices from EPC. Due to superior performance devices, switching can be pushed over 200kHz whole volume...
LLC converter has the benefits of ZVS capability switches over full load range. The switching frequency can be pushed to MHz increase power density. Conventionally, magnetic inductance is treated as a constant current source during dead time, which discharges output capacitance primary switch achieve ZVS. However, this view not suitable for condition, in that magnetizing no longer regarded whole time. This paper investigates detailed operating modes time at neighboring resonant frequency....
Targeting at low-power high-density bus converter applications, a megahertz active-clamp resonant forward with whole-load-range zero-voltage switching and zero-current (ZVZCS) characteristics is proposed in this paper, which improves system efficiency performance. Compared previous converters, the can effectively reduce root-mean-square current conduction loss. To realize zero-voltage-switching turn on of switch over entire input voltage range, dead-time control adopted to account for...
In this paper, a current-feed resonant two-switch forward DC-DC Transformer (DCX) is proposed for high-efficiency and high-density unregulated bus converter applications. With capacitor in series with the leakage inductance of transformer, ZCS turn-on nearly turn-off can be achieved primary switches there no body diode reverse recovery losses SR. Meanwhile, magnetizing current used to achieve ZVS switches. The circuit operating principle design considerations are discussed. An 110W prototype...
In order to simplify the resonant DCX topology and reduce cost, two novel cells are proposed in this paper which can be extended single ended Forward topology. Similar LLC DCX, ZVS on ZCS off for switch is also achieved. Furthermore, other dc-dc topologies. Hence, a new family of ZVS&ZCS suitable high frequency efficiency applications with various power levels. Two prototypes that two-switch resonant-reset built up verify effectiveness cells.
A simple current-feed single-switch forward resonant converter with secondary diode-clamping is proposed for low power high-density bus applications in this paper. The quasi-zero-voltage-switching (ZVS) turn on and quasi-zero-current-switching (ZCS) off switch are both achieved. Due to the quasi-ZCS off, high voltage spike traditional single a reset winding much reduced. small diode connecting output capacitor utilized clamp stress of switches. operating principle analyzed MHz 66W 24V-to-12V...
In order to improve the performance of on-line monitoring micro water in transformer oil, a structured and modular scheme is proposed for system software design. ARM9 embedded microprocessor adopted hardware realize online data acquisition processing information, through conversion sensor output signal. Then process Linux platform designed, directory structure operating system, porting target kernel source code provided. The experiment on test shows that works normally it can be...