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Extract from the Register of European Patents

EP About this file: EP1551097

EP1551097 - Power conversion device with synchronous rectifier driving and voltage oscillation limitation during a discontinuous operating mode [Right-click to bookmark this link]
StatusThe application is deemed to be withdrawn
Status updated on  16.10.2009
Database last updated on 11.09.2024
Most recent event   Tooltip16.10.2009Application deemed to be withdrawnpublished on 18.11.2009  [2009/47]
Applicant(s)For all designated states
STMicroelectronics Srl
Via C. Olivetti, 2
20041 Agrate Brianza (Milano) / IT
[N/P]
Former [2005/27]For all designated states
STMicroelectronics S.r.l.
Via C. Olivetti, 2
20041 Agrate Brianza (Milano) / IT
Inventor(s)01 / Librizzi, Fabrizio
Via Oberdan, 9
95030 Gravina di Catania (Catania) / IT
02 / Macina, Francesco
Corso San Vito, 85
95030 Mascalucia (Catania) / IT
 [2005/27]
Representative(s)Ferrari, Barbara
Botti & Ferrari S.p.A.
Via Cappellini, 11
20124 Milano / IT
[N/P]
Former [2005/27]Ferrari, Barbara
Botti & Ferrari S.r.l., Via Locatelli, 5
20124 Milano / IT
Application number, filing date03425831.931.12.2003
[2005/27]
Filing languageIT
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP1551097
Date:06.07.2005
Language:EN
[2005/27]
Search report(s)(Supplementary) European search report - dispatched on:EP22.07.2004
ClassificationIPC:H02M3/335, H02M1/00
[2005/27]
CPC:
H02M1/081 (EP,US); H02M3/33592 (EP,US); H02M1/32 (EP,US);
Y02B70/10 (EP,US)
Designated contracting statesDE,   FR,   GB,   IT [2006/13]
Former [2005/27]AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HU,  IE,  IT,  LI,  LU,  MC,  NL,  PT,  RO,  SE,  SI,  SK,  TR 
TitleGerman:Stromrichteranordnung mit einer Ansteuerung für Synchrongleichrichter und einer Begrenzung von Spannungsschwingungen während des lückenden Betriebes[2005/27]
English:Power conversion device with synchronous rectifier driving and voltage oscillation limitation during a discontinuous operating mode[2005/27]
French:Dispositif de conversion de puissance avec une commande à redresseur synchrone et une limitation des oscillations de tension lors d'un mode de fonctionnement discontinu[2005/27]
Examination procedure04.01.2006Examination requested  [2006/10]
15.01.2009Despatch of a communication from the examining division (Time limit: M04)
26.05.2009Application deemed to be withdrawn, date of legal effect  [2009/47]
29.06.2009Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time  [2009/47]
Fees paidRenewal fee
27.12.2005Renewal fee patent year 03
27.12.2006Renewal fee patent year 04
27.12.2007Renewal fee patent year 05
27.03.2008Renewal fee patent year 06
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]JP2000092824  ;
 [A]JPH11187651  ;
 [DA]EP1148624  (ST MICROELECTRONICS SRL [IT]) [DA] 1-13 * figures 6,8 * * paragraphs [0042] - [0044] *;
 [A]  - PATENT ABSTRACTS OF JAPAN, (20000922), vol. 2000, no. 06, & JP2000092824 A 20000331 (MATSUSHITA ELECTRIC IND CO LTD) [A] 1-13 * abstract *
 [XA]  - LIBRIZZI F, "MIT KOEPFCHEN SCHALTEN NEUE SMART-DRIVER-FAMILIE VEREINFACHT DIE IMPLEMENTIERUNG VON SYNCHRONGLEICHRICHTERN FUER ISOLIERTE SCHALTNETZTEILE", ELEKTRONIK, FRANZIS VERLAG GMBH. MUNCHEN, DE, (20020611), vol. 51, no. 12, ISSN 0013-5658, pages 44 - 49, XP001168119 [X] 13 * abstract * * pages 47,48 * * figures 8-10 * [A] 1-12
 [A]  - LIBRIZZI F ET AL, "STSR3 SIMPLIFIES IMPLEMENTATION OF SYNCHRONOUS RECTIFIER IN FLYBACK CONVERTER", APPLICATION NOTE ST MICROELECTRONICS, XX, XX, (200301), pages 1 - 22, XP002287536 [A] 1-13 * figures 1,4,12 * * pages 2,4,7,10 *
 [A]  - PATENT ABSTRACTS OF JAPAN, (19991029), vol. 1999, no. 12, & JP11187651 A 19990709 (FUJI ELELCTROCHEM CO LTD) [A] 1-13 * abstract * * figure 2 *
ExaminationEP0618666
 US2003147265
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.