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1. WO2009025157 - SWITCHING POWER SUPPLY DEVICE

Publication Number WO/2009/025157
Publication Date 26.02.2009
International Application No. PCT/JP2008/063728
International Filing Date 31.07.2008
IPC
H02M 3/28 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
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
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 7/06 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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
02Conversion of ac power input into dc power output without possibility of reversal
04by static converters
06using discharge tubes without control electrode or semiconductor devices without control electrode
CPC
H02M 3/3353
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
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
3353having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
Applicants
  • 株式会社村田製作所 Murata Manufacturing Co., Ltd. [JP]/[JP] (AllExceptUS)
  • 山口直毅 YAMAGUCHI, Naoki [JP]/[JP] (UsOnly)
  • 細谷達也 HOSOTANI, Tatsuya [JP]/[JP] (UsOnly)
  • 余川拓司 YOKAWA, Takuji [JP]/[JP] (UsOnly)
Inventors
  • 山口直毅 YAMAGUCHI, Naoki
  • 細谷達也 HOSOTANI, Tatsuya
  • 余川拓司 YOKAWA, Takuji
Agents
  • 小森久夫 KOMORI, Hisao
Priority Data
2007-21294217.08.2007JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) SWITCHING POWER SUPPLY DEVICE
(FR) DISPOSITIF D'ALIMENTATION ÉLECTRIQUE À DÉCOUPAGE
(JA) スイッチング電源装置
Abstract
(EN) For a first switch element (Q1) as a main switch element of a DC-DC converter and a third switch element (Q3) as a switch element of a power factor improving circuit, the turn-ON timings are synchronized and the ON period controls are independently performed so as to prevent increase of the switching frequency and intermittent oscillation, thereby preventing sounding. Thus, it is possible to prevent intermittent oscillation control caused by switching frequency increase of the first switch element (Q1) during a small load or non-load and solve the problem of intrusion of the intermittent oscillation frequency into an audible frequency band to cause sounding and ripple voltage increase.
(FR) Selon l'invention, pour un premier élément de commutation (Q1) en tant qu'élément de commutation principal d'un convertisseur CC-CC et un troisième élément de commutation (Q3) en tant qu'élément de commutation d'un circuit d'amélioration du facteur de puissance, les instants de déblocage sont synchronisés et les commandes de période de déblocage sont effectuées de façon indépendante afin d'éviter une augmentation de la fréquence de commutation et une oscillation intermittente, évitant ainsi une émission sonore. Il est ainsi possible d'empêcher une oscillation intermittente due à une augmentation de la fréquence de commutation du premier élément de commutation (Q1) durant une faible charge ou une absence de charge et de résoudre le problème d'intrusion de la fréquence d'oscillation intermittente dans une bande de fréquence audible qui provoque une émission sonore et une augmentation de la tension d'ondulation.
(JA)  DC-DCコンバータの主スイッチ素子としての第1のスイッチ素子(Q1)と、力率改善回路のスイッチ素子としての第3のスイッチ素子(Q3)を、ターンオンタイミングは同期させつつ、オン期間制御を独立して行うことで、スイッチング周波数の上昇を防ぎ、間欠発振させないことで音鳴りを防止する。  軽負荷或いは無負荷時の第1のスイッチ素子(Q1)のスイッチング周波数上昇による間欠発振制御が防止でき、間欠発振の周波数が可聴周波数帯に入って音鳴りを起こしたり、リプル電圧が大きくなったりする問題が解消される。
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