Design of a Charge-Average Type SC DC-DC Converter for Cellular Phones
スポンサーリンク
概要
- 論文の詳細を見る
A charge-average type DC-DC converter for cellular phones is proposed in this paper. The converter is designed by using switched-capacitor (SC) techniques. In the proposed power converter, the DC-DC conversion is performed by iterating the following processes. Firstly, an input voltage Vin is charged in capacitors which are connected in series. In this timing, an output voltage is taken out from arbitrary terminals of the capacitors. Next, the electric charges are equalized by connecting the capacitors in parallel. Therefore, different from conventional converters such as a series-parallel type converter and a Dickson-type converter, the proposed converter can provide stepped-down and stepped-up voltages which are expressed by (Q/P)×Vin (P ∈ {1, 2,..., N} and Q ∈ {1, 2,..., N}). Furthermore, the hardware cost for the proposed converter is smaller than that for the conventional SC power converters such as a ring-type converter and a series-parallel type converter. Concerning 3-stage power converters, SPICE simulations are performed to confirm the validity of the circuit design. For the input voltage 3.6 V, the power efficiency of the proposed circuit is about 90 % in the output current about 300 mA.
- 社団法人 電気学会の論文
- 2005-01-01
著者
-
Eguchi Kei
Department of Technology Education, Shizuoka University
-
Inoue T
Kumamoto University
-
Inoue Takahiro
Kumamoto University
-
Inoue T
Faculty Of Engineering Kumamoto University
-
Inoue Takahiro
Dep. Of Computer Sci. And Electrical Engineering Graduate School Of Sci. And Technol. Kumamoto Univ.
-
Zhu Hongbing
Department Of Computer Science Faculty Of Engineering Hiroshima Kokusai Gakuin University
-
EGUCHI Kei
Kumamoto National College of Technology
-
TABATA Toru
Kumamoto National College of Technology
-
UENO Fumio
Sojo University
-
ZHU Hongbing
Hiroshima Kokusai Gakuin University
-
Eguchi Kei
Department Of Information And Computer Sciences Kumamoto National College Of Technology
-
Eguchi Kei
Department Of Technology Education Shizuoka University
-
Eguchi Kei
The Department Of Electrical Engineering And Computer Science Kumamoto University
-
Inoue T
Graduate School Of Science And Technology Kumamoto University
-
Ueno F
National Coll. Technol. Kumamoto‐ken Jpn
関連論文
- Design of a Multiple-Input SC DC-DC Converter Realizing Long Battery Runtime
- A White LED Driver Using a Buck-Boost Converter
- FOREWORD (Special Section on Analog Technologies in Submicron Era)
- Piezoelectric Ceramic Transformer for Power Supply Operating in Thickness Extensional Vibration Mode
- 2 MHz Power Converter with Piezoelectric Ceramic Transformer
- Design and Experiments of a Novel Low-Ripple Cockcroft-Walton AC-to-DC Converter for a Coil-Coupled Passive RFID Tag
- Design of a CMOS Heartbeat Spike-Pulse Detection Circuit Integrable in an RFID Tag for Heart Rate Signal Sensing
- A Realization of a Common-Source FG-MOSFET with a Simple Electronic V_ Adjustment Almost Irrelevant to the Amount of the Pre-stored Charge on the Floating Gate(Analog Signal Processing)
- An Oversampled Sigma-Delta A/D Converter Using UGB Integrator with Gain-Error Compensator
- Improvement of Performances of SC Sigma-Delta Modulators (Special Section on JTC-CSCC '92)
- An Automatic Adjustment Method of Backpropagation Learning Parameters, Using Fuzzy Inference
- A Novel Intelligent Intrusion Detection, Decision, Response System(Papers Selected from 2005 International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC 2005))
- Design of a Charge-Average Type SC DC-DC Converter for Cellular Phones
- Design of a Dickson-Type Power Converter with Bootstrapped Gate Transfer Switches
- Design of a Random-Switching Controller Using Chaos Generators
- Design of a Ring-Type SC DC-DC Converter with Bootstrapped Gate Transfer Switches
- A 1-Dimensional Chaotic IC Designed by SI Techniques
- A Ring-Type SC DC-DC Converter with Series-Connected Capacitors
- A Boltzmann Machine with Non-rejective Move(Special Section on Papers Selected from ITC-CSCC 2001)
- Design of a cell-network type SC DC-DC converter for mobile equipments
- An FPGA-implementable chaos circuit with array structure
- FPGA design of a digital circuit for estimating chaotic characteristics from approximated nonlinear functions
- Synthesis and analysis of a discrete-time CNN using 1-dimensional cell circuits with S stable points (S=2, 3, 4,...)
- Design of a Discrete-time CNN using l-Dimensional Chaos Circuits with Controllable Nonlinear Functions (特集:電気関係学会東海支部連合大会)
- Design of a Fuzzy Based Circular Pattern Recognition Circuit using Current-mode Techniques (特集:電気関係学会東海支部連合大会)
- Design of a Discrete-Time Chaos Circuit with Long Working-Life
- A Training Algorithm for Multilayer Neural Networks of Hard-Limiting Units with Random Bias (Special Section of Papers Selected from ITC-CSCC'99)
- A current-mode feature extrastion circuit based on fuzzy scheme
- Design of a 3/2 Step-Up SC DC-DC Converter for Diode-Lamps
- Design of a Switched-Capacitor DC-DC Converter with Various Outputs
- Fuzzy Direct Torque Control for Dual-Three-Phase Induction Motor(Special Section on Papers Selected from ITC-CSCC 2002)
- Design of a Step-Down Switched-Capacitor DC-DC Converter with Charge-Average Processes
- Maximal-Period Sequences Generated by Feedback-Limited Nonlinear Shift Registers(Communications and Sequences,Nonlinear Theory and its Applications)
- On Transformation between Discretized Bernoulli and Tent Maps(Nonlinear Theory and its Applications)
- An Algorithm for the Generation of Maximal-Period Sequences Based on One-Dimensional Chaos Maps with Finite Bits(Papers Selected from 2003 International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC 2003)
- Maximal-Period Sequences with Negative Auto-Correlations and Their Application to Asynchronous DS-CDMA Systems(Special Section on Papers Selected from ITC-CSCC 2002)
- Synthesis and Analysis of a Digital Chaos Circuit Generating Multiple-Scroll Strange Attractors (Special Section of Papers Selected from ITC-CSCC '98)
- Design of a Digital Chaos Circuit with Nonlinear Mapping Function Learning Ability
- FPGA Implementation of a Digital Chaos Circuit Realizing a 3-Dimensional Chaos Model(Special Section of Papers Selected from ITC-CSCC'97)
- Design of a Two-Dimensional Digital Chaos Circuit Realizing a Henon Map
- A Current-Mode Sampled-Data Chaos Circuit with Nonlinear Mapping Function Learning
- Synthesis and Analysis of Chaotic Circuits Using Switched-Current Techniques (Special Section of Papers Selected from JTC-CSCC'95)
- A Design of Switched-Current Auto-Tuning Filter and Its Analysis
- Design of a CMOS Low-Voltage Low-Power Current-Mode Ring Oscillator and Its Application to a Frequency Selective PLL
- An Implementation of Multiple-Valued Logic and Fuzzy Logic Circuits Using 1.5 V Bi-CMOS Current-Mode Circuit (Special Issue on Multiple-Valued Logic)
- Boltzmann Machine Processor Using Single-Bit Operation (Special Section on JTC-CSCC '92)
- Design of a Multiple-Input SC DC-DC Converter Realizing Long Battery Runtime
- FOREWORD (Special Section of Papers Selected from 1995 Joint Technical Conference on Circuits/Systems, Computers and Communications (JTC-CSCC'95))
- An Autonomous Flight Control Strategy Study of a Small-Sized Unmanned Aerial Vehicle(Electronic Instrumentation and Control)
- Design of a Dual-Input SC DC-DC Converter Realizing Negative Outputs