A 60 mV-3 V Input Range Boost Converter with Amplitude-Regulated and Intermittently Operating Oscillator for Energy Harvesting
Hong Gao ; Hiroyuki Nakamoto ; Hiroshi Yamazaki ; Masafumi Kondou
Energy harvesting
,
boost converter
,
oscillator
,
wide input range
,
amplitude regulation
,
ultra-low input voltage
A boost converter that has a wide input-voltage range is presented. The wide range is achieved by an oscillator that can start operations…
A High Voltage Split Source Voltage Multiplier with Increased Output Voltage
Liran Katzir ; Doron Shmilovitz
High voltage
,
Voltage multiplier
Building on the Half-Wave Cockcroft-Walton voltage multiplier a new topology is proposed that consists of multiple sections fed separately at…
A Simple Approach to Current THD Prediction for Small-Scale Grid-Connected Inverters
Bo Cao ; Liuchen Chang ; Riming Shao
THD
,
double Fourier series
,
Grid-Connected
,
Inverters
A method that the current harmonic distortion is predicted by deducting the high frequency harmonic component from the total harmonic…
Alternating Current Welding using Four Quadrant Switches
A. Navarro-Crespin ; Rosario Casanueva ; Francisco J. Azcondo
AC welding
,
Four Quadrant Switch
,
Resonant Converters
,
Syncronous Rectification
Welding metals such as aluminum and magnesium requires AC current. This work proposes a novel control strategy for a high-frequency…
An Accurate Back to Front Design Methodology for PT based Load Resonant Converters
Yujia Yang ; Matthias Radecker ; Klaus-Dieter Lang ; Wolf-Joachim Fischer
Piezo-transformer
,
Load resonant converter
,
Static design
,
Parameter Optimization
In this work a standard design methodology with high accuracy and suitable for different PT (Piezoelectric-Transformer) based load resonant…
An Energy Channelling LED Driver Technology to Achieve Flicker-Free Operation with True Single Stage Power Factor Correction
Peng Fang ; Zhi Yuan Hu ; Yan-Fei Liu
LED driver
,
single stage power conversion
,
flicker free LED driving
,
high power factor
A single-stage LED driver usually produces a significant twice line frequency ripple current when a high power factor is achieved. The ripple…
Biologically Inspired Coupling Pixilation for Position Independence in Capacitive Power Transfer Surfaces
Jiejian Dai ; Daniel C. Ludois
Capacitive power transfer (CPT)
,
Coupling factor
,
Wireless charging
A common problem of wireless/contactless power transfer is that the coupling factor is position dependent. For both inductive and capacitive…
Design Considerations of LLC Resonant Converter for Contactless Laptop Charger
Cong Zheng ; Baifeng Chen ; Lanhua Zhang ; Rui Chen ; Jih-Sheng Lai
Contactless Power Transfer
,
LLC Resonant Converter
,
Loosely Coupled Transformer
In this paper, a contactless charging system for laptop battery is proposed. The system consists of three parts: a high frequency power…
Energy Bus-based Equalization Scheme with Bi-directional Isolated Cuk Equalizer for Series Connected Battery Strings
Rui Ling ; Qiang Dan ; Lizhi Wang ; Dongxue Li
bi-directional isolated Cuk converter
,
battery equalization
,
energy bus
A bi-directional isolated Cuk equalizer for the energy bus-based equalization network is presented in this paper. The battery side is isolated…
Fault Tolerable Li-Ion Battery Stack
Guangyuan Liu ; Keyan Shi ; Wenping Zhang ; Dehong Xu
li-ion battery stack
,
fault tolerable
,
cell state sensing
Since Li-ion batteries are embedded in many systems such as EV, airplane, ships, IDC etc., Li-ion battery stack is critical to safety and…
High Power Factor Dimmable Self-Oscillating Electronic Ballast with Variable Inductor Control
M.F. Menke ; M.F. da Silva ; A.R. Seidel ; M.S. Perdigão ; J.M. Alonso
Variable Inductor
,
Ballast
,
Lighting
,
Converter
This paper presents a high power factor dimmable self-oscillating electronic ballast, where a variable inductor is used to control the…
Improvement of Waveform for High Frequency AC-Linked Matrix Converter with SVM based on Virtual Indirect Control
Kazuhiro Koiwa ; Jun-Ichi Itoh ; Masashi Shioda
High frequency AC-linked matrix converter
,
Dead-time compensation
,
SVM
This paper proposes a dead-time compensation for a secondary circuit of high frequency AC-linked matrix converter with a SVM. In order to…
Improving the Cross Regulation of Multi-Output SRC by Adding the Magnetic Fence and Capacitance Compensation
Yanpeng Qiao ; Feng Zheng ; Yu Zhang ; Gengzhai Peng ; Yuchen Xie ; Depeng Bai
Multi-output Converter
,
Cross Regultion
,
Eddy Current
,
Demagnetization
,
Compensition
In this paper, a novel method for improving the cross regulation characteristics in multi-output series resonant converter (SRC) is proposed….
Maximum Efficiency Control of Wireless Power Transfer via Magnetic Resonant Coupling Considering Dynamics of DC-DC Converter for Moving Electric Vehicles
Katsuhiro Hata ; Takehiro Imura ; Yoichi Hori
Wireless Power Transfer
,
Magnetic Resonant Coupling
,
DC-DC Converter
,
Feedback Controller Design
This paper proposes a design method of secondary voltage control with feedback controller based on a novel DC-DC converter model and the…
Quad-Switch Push-Pull (QSPP) RF Amplifier with Direct, Simultaneous Modulation of Phase and Pulse-Position for Spread Spectrum Power Applications
Al-Thaddeus Avestruz ; Arthur H. Chang ; Steven B. Leeb
EMI
,
EMC
,
Spread Spectrum
,
Inverter
,
Wireless Power Transfer
,
RF Amplifier
,
Inverse Class D
,
Phase Modulation
,
Pulse Position Modulation
,
GaN
We present a new RF power amplifier for spread spectrum applications, especially wireless power transfer with low electromagnetic interference…
Resonant Inverter Design for Stand-Alone Dynamic Active Piezoelectric Energy Harvesting
Energy Harvesting
,
Piezoelectric Devices
,
AC-DC Conversion
Piezoelectric energy harvesters generate electrical power from ambient mechanical vibrations. Typically these devices are inserted into high-Q…
Three Dimensional Integration of Electromagnetic Interference Filter
Yu Zhang ; Feng Zheng ; Yuchen Xie ; Yanpeng Qiao ; Gengzhai Peng
EMI
,
three dimensional
,
planar structure
In this paper, a novel three dimensional integration of EMI filter is presented. Planar structure is adopted in this EMI filter design, including…
Wireless Electric Vehicle Charging via Capacitive Power Transfer through a Conformal Bumper
Jiejian Dai ; Daniel C. Ludois
Capacitive power transfer (CPT)
,
Wireless power transfer (WPT)
,
coupling capacitor
,
soft switching control
Wireless power transfer (WPT) is emerging as a practical means for electric vehicle (EV) charging. Of the three main approaches to WPT,…
