POWER SUPPLY DEVICE

• Main Authors: SAWANO Shunichi, IKUTA, Katsuya
• Format: Patent
• Language: English; French; Japanese
• Published: 26.01.2017
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; PERFORMING OPERATIONS; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

A voltage transformation circuit (47) in a power supply device (12) transforms the terminal voltage of a capacitor (46) and outputs the transformed voltage to a FET (42). The connection node located between the source of the FET (42) and the voltage transformation circuit (47) has the source of a FET (43) connected thereto. A detection circuit (48) for detecting the output voltage of the voltage transformation circuit (47) is connected in series to the FET (43). The voltage transformation circuit (47) adjusts the output voltage of the voltage transformation circuit (47) according to the voltage detected by the detection circuit (48). Dans un dispositif d'alimentation électrique (12) selon la présente invention, un circuit de transformation de tension (47) transforme la tension aux bornes d'un condensateur (46) et délivre la tension transformée à un transistor à effet de champ (TEC) (42). La source d'un TEC (43) est connectée à un nœud de connexion situé entre la source du TEC (42) et le circuit de transformation de tension (47). Un circuit de détection (48) destiné à détecter la tension de sortie du circuit de transformation de tension (47) est connecté en série avec le TEC (43). Le circuit de transformation de tension (47) règle la tension de sortie du circuit de transformation de tension (47) en fonction de la tension détectée par le circuit de détection (48). 給電装置（１２）では、変圧回路（４７）は、蓄電器（４６）の端子電圧を変圧し、変圧した電圧を、ＦＥＴ（４２）へ出力する。ＦＥＴ（４２）のソース、及び、変圧回路（４７）間の接続ノードにＦＥＴ（４３）のソースが接続される。変圧回路（４７）の出力電圧に係る電圧を検出する検出回路（４８）は、ＦＥＴ（４３）に直列に接続されている。変圧回路（４７）は、検出回路（４８）が検出した電圧に応じて変圧回路（４７）の出力電圧を調整する。