Charge-transfer type floating switches and their application

电荷转移型浮动开关及其应用

• 批准号: 10650338
• 负责人: HARADA Ikkoh
• 金额: $ 1.98万
• 依托单位: Kumamoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650338/
• 关键词: Switched Capacitor; SC Circuit; Floating Switch; Floating Power Supply; MOSFET Driver; DC-DC Converter; Ring Type Converter; Electronic Balast; 非接地スイッチ; 電荷移送方式; MOSFET; フローティングスイッチ; 非接地系スイッチ; スイッチトキャパシタ; SC; チャージポンプ方式; 半導体スイッチ

Switched-capacitor (abbr.SC) technique performs energy transform or signal processing function by changing capacitors circuit in high speed and provides with coilless and transformerless circuit configurations which is essential to circuit integration.In this study, floating switches are investigated for the purpose of high speed and high power switching operating on DC lines or AC lines by using SC technique. They are ultimately capable to fablicate in an integrated circuit. To begin with, floating power sources which is independent from the ground level and feed electric power to the gate driver of switching devices (MOSFETs) are investigated by using SC technique. Floating switches for DC line(always positive level) and for commercial AC line are developed. Their application for DC and AC lines are realized.As a DC floating switch application, an electronic balast for fluorescent lamps is realized by no used of coils and transformers, and confirmed to operate normally. Furthermore, these DC floating switches are applied to a DC-DC converter and an AC-DC converter. These novel converters charactered as a ring type are shown to have high efficiency and low noise characteristics from the theoretical and experimental aspects.The AC floating switch operating on conventional AC power line is developed for the purpose of precious power control. This switch is confirmed to operate on high speed clock up to several hundreds kHz. This provides bidirectional current control and a simple configuration. The voltage and current limits are depend only on the MOSFET ratings.

开关电容（Switched-Capacitor，简称SC）技术通过高速改变电容电路来实现能量转换或信号处理功能，并提供了电路集成所必需的无线圈和无变压器的电路结构，本文研究了应用SC技术在直流或交流线路上实现高速、大功率开关的浮地开关。它们最终能够在集成电路中制造。开始，利用SC技术研究了与地电平无关的浮地电源，该浮地电源为开关器件（MOSFET）的栅极驱动器供电。开发了直流线路（始终为正电平）和商用交流线路的浮地开关。作为直流浮地开关应用，荧光灯用电子镇流器不使用线圈和变压器，实现了正常工作。此外，这些DC浮置开关应用于DC-DC转换器和AC-DC转换器。从理论和实验两方面证明了这种新型环形变换器具有高效率和低噪声的特点。为了实现精确的功率控制，研制了工作在常规交流电源线上的交流浮地开关。该开关被确认为在高达几百kHz的高速时钟下工作。这提供了双向电流控制和简单的配置。电压和电流限值仅取决于MOSFET额定值。

项目成果

IKKO HARADA: "Lighting Circuit for Fluorescent Lamps by Using a Series Capacitor" Proceedings of the 1998 International Technical Conference on Cirouits/Systems,Computers and Communications. II. 1465-1468 (1998)

IKKO HARADA：“使用串联电容器的荧光灯照明电路”1998 年国际电路/系统、计算机和通信技术会议论文集。

Ikko Harada: "High-Speed High-Power MOSFET Floating Switches"Proc. of 1999 International Symposium on Nonlinera Theory and its Applications. 1. 147-150 (1999)

Ikko Harada：“高速大功率 MOSFET 浮动开关”Proc。

I.Harada,N.Hara,F.Ueno and I.Oota: "Lighting Circuit for Fluorescent Lamps by Using a Series Capacitor"Proceedings of 1998 International Technical Conference on Circuits/Systems,Computers and Communications. II. 1465-1468 (1998)

I.Harada、N.Hara、F.Ueno 和 I.Oota：“使用串联电容器的荧光灯照明电路”1998 年电路/系统、计算机和通信国际技术会议论文集。

Ikko Harada: "Lighting Circuit for Fluorescent Lamps by Using a Series Capacitor"Proc. of 1998 International Technical Conference on Circuits/Systems, Computers and Communications. 2. 1465-1468 (1998)

Ikko Harada：“使用串联电容器的荧光灯照明电路”Proc。

I. Harada: "Multi-Output SC Type DC-DC Converter Using a Flexible Capacitor Ring Operation"Proceedings of The 21st International Telecommunications Energy Conference. 17-1. 1-4 (1999)

I. Harada：“使用柔性电容器环操作的多输出 SC 型 DC-DC 转换器”第 21 届国际电信能源会议论文集。