Processing

Please wait...

Settings

Settings

Goto Application

1. JPWO2018135159 - 3レベル・インバータ

Office
Japan
Application Number 2018563199
Application Date 04.12.2017
Publication Number WO2018135159
Publication Date 26.07.2018
Grant Number 6597917
Grant Date 11.10.2019
Publication Kind B2
IPC
H02M 7/487
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
483Converters with outputs that each can have more than two voltage levels
487Neutral point clamped inverters
CPC
H02M 1/34
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
32Means for protecting converters other than automatic disconnection
34Snubber circuits
H02M 7/487
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
483Converters with outputs that each can have more than two voltages levels
487Neutral point clamped inverters
H02M 1/0051
H02M 1/346
Y02B 70/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
70Technologies for an efficient end-user side electric power management and consumption
10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
H01L 29/1608
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
29Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof; ; Multistep manufacturing processes therefor
02Semiconductor bodies ; ; Multistep manufacturing processes therefor
12characterised by the materials of which they are formed
16including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System
1608Silicon carbide
Applicants 富士電機株式会社
Inventors 陳 ▲爽▼清
Agents 星野 裕司
Priority Data 2017007128 18.01.2017 JP
Title
(JA) 3レベル・インバータ
Abstract
(JA)

還流ダイオードとしてユニポーラ・ダイオードを用いた3レベル・のインバータの更なる低損失化を図る。直流高電位端子と交流出力端子との間に設けた第1の半導体スイッチング素子と、直流高電位端子と対をなす直流低電位端子と前記交流出力端子との間に設けた第2の半導体スイッチング素子と、前記第1および第2の半導体スイッチング素子にそれぞれ逆並列に設けた第1および第2の還流ダイオードと、直流中間電位端子に与えられる直流中間電圧を前記第1および第2の半導体スイッチング素子に選択的に加えて前記第1および第2の半導体スイッチング素子のゲート電圧を制御する半導体回路とを備える。特に前記第1および第2の還流ダイオードにインダクタンス素子をそれぞれ直列に接続して前記第1および第2の還流ダイオードを経由する回路インピーダンスを高める。