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1. WO2006046731 - POWER SUPPLY DEVICE AND PORTABLE DEVICE

Publication Number WO/2006/046731
Publication Date 04.05.2006
International Application No. PCT/JP2005/019952
International Filing Date 25.10.2005
IPC
H02M 3/155 2006.1
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
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
04by static converters
10using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a triode or transistor type requiring continuous application of a control signal
155using semiconductor devices only
H02M 3/07 2006.1
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
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
04by static converters
06using resistors or capacitors, e.g. potential divider
07using capacitors charged and discharged alternately by semiconductor devices with control electrode
CPC
H02M 3/07
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
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
04by static converters
06using resistors or capacitors, e.g. potential divider
07using capacitors charged and discharged alternately by semiconductor devices with control electrode ; , e.g. charge pumps
H02M 3/155
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
3Conversion of dc power input into dc power output
02without intermediate conversion into ac
04by static converters
10using discharge tubes with control electrode or semiconductor devices with control electrode
145using devices of a triode or transistor type requiring continuous application of a control signal
155using semiconductor devices only
Applicants
  • ローム株式会社 ROHM CO., LTD. [JP]/[JP] (AllExceptUS)
  • 北川 篤 KITAGAWA, Atsushi [JP]/[JP] (UsOnly)
Inventors
  • 北川 篤 KITAGAWA, Atsushi
Agents
  • 紋田 誠 MONDA, Makoto
Priority Data
2004-31529729.10.2004JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) POWER SUPPLY DEVICE AND PORTABLE DEVICE
(FR) DISPOSITIF D’ALIMENTATION ELECTRIQUE ET DISPOSITIF PORTABLE
(JA) 電源装置、および携帯機器
Abstract
(EN) A switching type power supply device, which generates a positive output voltage converted from a power supply voltage, is provided with a negative output voltage generating circuit switchably connected between a contact point of a coil and a switch and a power supply voltage point or a ground, through a changeover switch circuit. When a voltage difference between the positive output voltage (Vp) and the power supply voltage (Vbat) is sufficiently large, the negative output voltage generating circuit is connected to the power supply voltage point, and when the voltage difference is small, the circuit is connected to the ground. The negative output voltage at a prescribed level is efficiently generated with the positive output voltage converted from the power supply voltage.
(FR) Dispositif d’alimentation électrique à commutateur, qui génère une tension de sortie positive convertie à partir d’une tension d’alimentation électrique, étant mis à disposition avec un circuit de génération de tension de sortie négative connecté de manière commutable entre un point de contact d’une bobine et un commutateur et un point de tension d’alimentation électrique ou une terre, grâce à un circuit de commutateur de basculement. Lorsqu’une différence de tension entre la tension de sortie positive (Vp) et la tension d’alimentation électrique (Vbat) est suffisamment importante, le circuit de génération de tension de sortie négative est connecté au point de tension d’alimentation électrique, et lorsque la différence de tension est faible, le circuit est connecté à la terre. La tension de sortie négative à un niveau prescrit est générée efficacement avec la tension de sortie positive convertie à partir de la tension d’alimentation électrique.
(JA) 電源電圧から変換された正出力電圧を発生するスイッチング型の電源装置において、コイルとスイッチとの接続点と、電源電圧点もしくはグランド間に、切替スイッチ回路を介して切替可能に接続された負出力電圧発生回路を備える。これにより、正出力電圧Vpと電源電圧Vbatとの電圧差が、十分に大きいときには電源電圧点に接続し、小さいときにはグランドに接続する。これにより、電源電圧から変換された正出力電圧とともに、所定レベルの負出力電圧を効率よく発生する。
Related patent documents
US2007216379This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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