WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2006121065) DC-DC CONVERTER AND POWER SUPPLY
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/121065    International Application No.:    PCT/JP2006/309376
Publication Date: 16.11.2006 International Filing Date: 10.05.2006
IPC:
H02M 3/00 (2006.01), H03K 4/06 (2006.01)
Applicants: Murata Manufacturing Co., Ltd. [JP/JP]; 10-1, Higashikotari 1-chome, Nagaokakyo-shi, Kyoto 6178555 (JP) (For All Designated States Except US).
TAGO, Masanari [JP/JP]; (JP) (For US Only)
Inventors: TAGO, Masanari; (JP)
Agent: KOMORI, Hisao; 1-4-34, Noninbashi, Chuo-ku, Osaka-shi, Osaka 5400011 (JP)
Priority Data:
2005-138214 11.05.2005 JP
Title (EN) DC-DC CONVERTER AND POWER SUPPLY
(FR) CONVERTISSEUR CC/CC ET ALIMENTATION
(JA) DC-DCコンバータおよび電源装置
Abstract: front page image
(EN)A switching control IC (11) comprises a circuit generating a triangular wave at a frequency dependent on a capacitor (Co) connected with its CT terminal and a resistor (Ro) connected with its RT terminal. A circuit (10) for inputting a pulse voltage signal, i.e. a sync signal, from the outside to the CT terminal is provided. Charging voltage of the capacitor (Co) at the CT terminal is varied forcibly by the sync signal and the frequency of the triangular wave is synchronized with that of the sync signal, thereby synchronizing the frequencies of a plurality of DC-DC converters.
(FR)L’invention concerne un CI de commande de découpage (11) comprenant un circuit générant une onde triangulaire à une fréquence qui dépend d’un condensateur (Co) raccordé à sa borne CT et d’une résistance (Ro) raccordée à sa borne RT. Un circuit (10) est pourvu pour introduire un signal d’impulsions de tension, par exemple un signal de synchronisation, de l’extérieur vers la borne CT. La tension de charge du condensateur (Co) à la borne CT est modifiée de force par le signal de synchronisation et la fréquence de l’onde triangulaire est synchronisée avec celle du signal de synchronisation, synchronisant ainsi les fréquences d’une pluralité de convertisseurs CC/CC.
(JA) スイッチング制御用IC(11)は、そのCT端子に接続したコンデンサ(Co)とRT端子に接続した抵抗(Ro)によって定まる周波数で三角波を生成する回路を備えている。このCT端子に対して外部からパルス電圧信号である同期信号を入力する同期信号入力回路(10)を設ける。この同期信号によってCT端子のコンデンサ(Co)の充電電圧を強制的に変化させ、三角波の周波数を同期信号に同期させ、このことによって複数のDC-DCコンバータを周波数同期させる。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)