研究方向

• 直流-直流轉換器與控制 / DC-DC Power Converter and Control

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• 電源積體電路設計 / Power IC design

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• 磁性元件整合 / Integrated Magnetic Component

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• 車載無線充電 / WPT

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• 換流器控制 / Inverter Control

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近四年研究主題介紹如下

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A Single-Stage Asymmetrical Half-Bridge LLC Converter with Hybrid control

• Single-stage topology : high-power-density, high power-factor and low cost.
• Hybrid control : input voltage 90~264 V_ac, bus-voltage V_bus can be regulated at around 400-V by duty cycle control, and output voltage Vo can be control by switching frequency.

Totem-Pole Bridgeless PFC Converter with Hybrid Control

• Hybrid control: Average current control+ Predicative control .
• Less DSP calculate time for real-time feedback control.
• Lower input current harmonic distortion.

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LLC Resonant Converter with Valley Switching Control for Light-Load Conditions

• A novel valley switching control for LLC converter.
• Lower switching losses compared to burst mode control.
• Lower voltage ripples.
• Higher light-load conditions conversion efficiency.

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Current Sharing Control of Interleaved Three-Phase Series Resonant Converter with Phase Shift Modulation

• A novel current balancing control for interleaved three-phase SRC.
• Phase shift and switching frequency Hybrid control.
• Actively current balancing between module A and module B.
• Low output current ripples.
• High power density and conversion efficiency.

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CLL-LC Resonant Converter with Self-Driven Synchronous Rectification

• Third current harmonics injection to reduce transformer rms current.
• Wide output voltage range applications.
• Easily implemented short-circuit protection and inrush current improvement at start-up.
• Easily implemented SR control.

Three-Phase Bi-Directional Dual Active Bridge DC-DC Converter

• A novel phase-shift control strategy.
• Bi-directional power flow for battery charge and discharge applications.
• High power density and high efficiency.

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Novel Three-Phase Multi-Level Y-Y Connection Bi-Directional Resonant DC-DC Converter

• A novel multi-level bi-directional topology and phase-shift control strategy for high voltage applications.
• Bi-directional power flow for battery charge and discharge applications .
• High power density and high efficiency.

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A Constant on-time Control DC-DC Buck Converter with Random Switching Frequency�

• A novel random switching frequency circuit.
• Using simple and less sub-circuit to reduced EMI issue.
• Low power consumption.

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SIMO Step-Down Converter with Couple Inductor

• A novel coupled inductor single-input and multi-output converter.
• Optimize cross-regulation.
• Lower output voltage ripple.
• Low power consumption.

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Wide Load Range High Efficiency Multiphase DC-DC Converter

• A novel current balancing circuit .
• Optimize efficiency control and design.
• Lower output voltage ripple.
• Low power consumption.

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Dual Mode Control and following Load Variable Frequency Control for High Performance Buck Converter

• A novel dual-mode control for different load conditions .
• Optimize efficiency control and design.
• Low power consumption.

Single Inductor Dual Output Three Level Buck Converter

• A novel actively current balancing circuit .
• High power density .
• Lower output voltage ripple.
• Low power consumption.

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LLC Resonant Converter Utilizing a Step-Gap Transformer Structure for Hold-Up Time Improvement

• A novel step-gap transformer structure to extend LLC converter. hold-time and not need to increase extra bulk-capacitor.
• High power density and conversion efficiency.

A Novel Interleaved LLC Half-Bridge Series Resonant Converter with Integrated Transformer

• A novel Integrated transformer structure for interleaved LLC converter.
• Natural current balancing between module A and module B.
• Low output current ripples.
• High power density and conversion efficiency.

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A Novel Integrated Transformer with Flux Cancelation for High Frequency LLC Resonant Converter

• A novel Integrated transformer structure for MHz high frequency. LLC converter applications.
• No transformer air-gap loess and lower conduction losses.
• High power density and conversion efficiency.

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Integrated Two Transformer LLC Converter with Half Turn Secondary-Side

• A novel Integrated transformer structure for MHz high frequency LLC converter applications.
• lower conduction losses and transformer air-gap loess.
• High power density and conversion efficiency.

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Three Phase Wye-Delta LLC Converter Integrated Transformers design

• Natural current balancing between phase.
• Low output current ripples.
• High power density and conversion efficiency.

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Meet J2954 Standard , 8 kW Electric Vehicle Wireless Power Transfer System

• A novel control strategy for J2954 standard.
• High power and high efficiency.

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High Switching Frequency Three Phase Inverter Using SVPWM Combine with Predict Control

• Hybrid control: SVPWM+ Predicative control .
• Using GaN device for high switching frequency.
• Less DSP calculate time for real-time feedback control.
• Lower output voltage harmonic distortion.
• High power density.

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T-Type Three Phase Four-Leg Inverters Based on Droop Control for Parallel Operations

• Using R-type droop control for modules Parallel control.
• Four-leg for unbalancing load control.
• Bi-directional Power flow.
• Lower output voltage harmonic distortion.

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Thank For Your Attention.