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Extract from the Register of European Patents

EP About this file: EP2424097

EP2424097 - System and method for current limiting a DC-DC converter [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  12.03.2021
Database last updated on 13.07.2024
FormerThe patent has been granted
Status updated on  03.04.2020
FormerGrant of patent is intended
Status updated on  03.12.2019
FormerExamination is in progress
Status updated on  07.02.2017
Most recent event   Tooltip08.07.2022Lapse of the patent in a contracting state
New state(s): MK		published on 10.08.2022  [2022/32]
Applicant(s)For all designated states
Intersil Americas Inc.
1001 Murphy Ranch Road
Milpitas, CA 95035 / US
[2012/09]
Inventor(s)01 / Huang, Congzhong
2520 Forest Green Lane
Plano, Texas 75025 / US
02 / Chen, Sicheng
3841 Elgin Drive
Plano, Texas 75025 / US
03 / Wu, Xuelin
3417 Edward Drive
Plano, Texas 75025 / US
 [2012/09]
Representative(s)Fleuchaus, Michael A.
Fleuchaus & Gallo Partnerschaft mbB
Patent- und Rechsanwälte
Steinerstraße 15/Haus A
81369 München / DE
[N/P]
Former [2020/19]Fleuchaus, Michael A.
Fleuchaus & Gallo Partnerschaft mbB
Patentanwälte
Steinerstraße 15/Haus A
81369 München / DE
Former [2013/33]Fleuchaus, Michael A.
Fleuchaus & Gallo Partnerschaft
Patent- und Rechtsanwälte
Steinerstrasse 15/A
81369 München / DE
Former [2012/09]Harrasz, Julia Konstanze
Fleuchaus & Gallo
Sollner Strasse 36
81479 München / DE
Application number, filing date11176780.208.08.2011
[2012/09]
Priority number, dateUS20100376536P24.08.2010         Original published format: US 376536 P
US20111305282021.03.2011         Original published format: US201113052820
[2013/13]
Former [2012/09]US20100376536P24.08.2010
US2011005282021.03.2011
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP2424097
Date:29.02.2012
Language:EN
[2012/09]
Type: A3 Search report 
No.:EP2424097
Date:31.07.2013
Language:EN
[2013/31]
Type: B1 Patent specification 
No.:EP2424097
Date:06.05.2020
Language:EN
[2020/19]
Search report(s)(Supplementary) European search report - dispatched on:EP02.07.2013
ClassificationIPC:H02M1/32, H02M3/158, H02M1/15
[2019/51]
CPC:
G05F1/46 (EP,US); H02M1/14 (KR); H02M3/156 (CN);
H02M1/15 (EP,US); H02M1/32 (EP,US); H02M3/155 (KR);
H02M3/157 (CN); H02M3/1582 (EP,US) (-)
Former IPC [2013/31]H02M3/158, H02M1/32
Former IPC [2012/09]H02M3/158
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2020/19]
Former [2012/09]AL,  AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
TitleGerman:System und Verfahren zur Gleichspannungswandlerstrombegrenzung[2012/09]
English:System and method for current limiting a DC-DC converter[2012/09]
French:Système et procédé de limitation de courant d'un convertisseur CC/CC[2012/09]
Examination procedure27.09.2013Examination requested  [2013/45]
30.01.2014Amendment by applicant (claims and/or description)
10.10.2016Despatch of a communication from the examining division (Time limit: M06)
19.04.2017Reply to a communication from the examining division
03.07.2018Despatch of a communication from the examining division (Time limit: M04)
25.10.2018Reply to a communication from the examining division
11.11.2019Cancellation of oral proceeding that was planned for 20.11.2019
20.11.2019Date of oral proceedings (cancelled)
04.12.2019Communication of intention to grant the patent
27.03.2020Fee for grant paid
27.03.2020Fee for publishing/printing paid
27.03.2020Receipt of the translation of the claim(s)
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  10.10.2016
Opposition(s)09.02.2021No opposition filed within time limit [2021/15]
Fees paidRenewal fee
27.08.2013Renewal fee patent year 03
27.08.2014Renewal fee patent year 04
27.08.2015Renewal fee patent year 05
29.08.2016Renewal fee patent year 06
28.08.2017Renewal fee patent year 07
27.08.2018Renewal fee patent year 08
27.08.2019Renewal fee patent year 09
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipHU08.08.2011
AL06.05.2020
AT06.05.2020
CY06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
MK06.05.2020
MT06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SI06.05.2020
SK06.05.2020
SM06.05.2020
TR06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
GB08.08.2020
IE08.08.2020
LU08.08.2020
BE31.08.2020
CH31.08.2020
FR31.08.2020
LI31.08.2020
IS06.09.2020
PT07.09.2020
[2022/32]
Former [2022/27]HU08.08.2011
AL06.05.2020
AT06.05.2020
CY06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
MT06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SI06.05.2020
SK06.05.2020
SM06.05.2020
TR06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
GB08.08.2020
IE08.08.2020
LU08.08.2020
BE31.08.2020
CH31.08.2020
FR31.08.2020
LI31.08.2020
IS06.09.2020
PT07.09.2020
Former [2022/26]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SI06.05.2020
SK06.05.2020
SM06.05.2020
TR06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
GB08.08.2020
IE08.08.2020
LU08.08.2020
BE31.08.2020
CH31.08.2020
FR31.08.2020
LI31.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/38]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SI06.05.2020
SK06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
GB08.08.2020
IE08.08.2020
LU08.08.2020
BE31.08.2020
CH31.08.2020
FR31.08.2020
LI31.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/37]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SI06.05.2020
SK06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
IE08.08.2020
LU08.08.2020
BE31.08.2020
CH31.08.2020
FR31.08.2020
LI31.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/36]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SI06.05.2020
SK06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
LU08.08.2020
BE31.08.2020
CH31.08.2020
FR31.08.2020
LI31.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/35]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SI06.05.2020
SK06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
LU08.08.2020
CH31.08.2020
FR31.08.2020
LI31.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/24]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SI06.05.2020
SK06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
LU08.08.2020
CH31.08.2020
LI31.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/20]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SK06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
LU08.08.2020
CH31.08.2020
LI31.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/18]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
MC06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SK06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/10]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
NL06.05.2020
PL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SK06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/09]AL06.05.2020
AT06.05.2020
CZ06.05.2020
DK06.05.2020
EE06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
IT06.05.2020
LT06.05.2020
LV06.05.2020
NL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/08]AL06.05.2020
DK06.05.2020
ES06.05.2020
FI06.05.2020
HR06.05.2020
LT06.05.2020
LV06.05.2020
NL06.05.2020
RO06.05.2020
RS06.05.2020
SE06.05.2020
SM06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/04]AL06.05.2020
FI06.05.2020
HR06.05.2020
LT06.05.2020
LV06.05.2020
NL06.05.2020
RS06.05.2020
SE06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
IS06.09.2020
PT07.09.2020
Former [2021/01]FI06.05.2020
HR06.05.2020
LT06.05.2020
LV06.05.2020
RS06.05.2020
SE06.05.2020
BG06.08.2020
NO06.08.2020
GR07.08.2020
IS06.09.2020
PT07.09.2020
Former [2020/51]FI06.05.2020
HR06.05.2020
LT06.05.2020
LV06.05.2020
RS06.05.2020
SE06.05.2020
NO06.08.2020
GR07.08.2020
IS06.09.2020
PT07.09.2020
Former [2020/50]FI06.05.2020
HR06.05.2020
LT06.05.2020
LV06.05.2020
SE06.05.2020
NO06.08.2020
GR07.08.2020
IS06.09.2020
PT07.09.2020
Former [2020/48]FI06.05.2020
LT06.05.2020
SE06.05.2020
NO06.08.2020
IS06.09.2020
PT07.09.2020
Former [2020/47]LT06.05.2020
NO06.08.2020
IS06.09.2020
Former [2020/46]IS06.09.2020
Documents cited:Search[A]US2004113594  (ATHARI FRANK [US], et al) [A] 1-15 * the whole document *;
 [I]EP1850468  (WOLFSON MICROELECTRONICS PLC [GB]) [I] 1-15 * paragraph [0004] - paragraph [0006] * * paragraph [0026] - paragraph [0036] * * paragraph [0047] * * paragraph [0050] - paragraph [0056] * * figures 6,10 *;
 [XI]US2009015229  (KOTIKALAPOODI SRIDHAR V [US]) [X] 1,3,7,10,15 * paragraph [0035] - paragraph [0039] * * paragraph [0044] * * figures 3,6a,6b * [I] 6;
 [A]  - VARIOUS AUTHORS, "LTC3780 - High Efficiency, Synchronous, 4-Switch Buck-Boost Controller", ANNOUNCEMENT LINEAR TECHNOLOGY, XX, XX, (20050101), pages 1 - 28, XP002422285 [A] 1-15 * figure 1 * * page 12 *
 [A]  - ZHOU GUO-HUA ET AL, "GENERAL;Symmetrical dynamics of peak current-mode and valley current-mode controlled switching dcdc converters with ramp compensation", CHINESE PHYSICS B, CHINESE PHYSICS B, BRISTOL GB, (20100610), vol. 19, no. 6, doi:10.1088/1674-1056/19/6/060508, ISSN 1674-1056, page 60508, XP020193244 [A] 2,4,11 * the whole document *

DOI:   http://dx.doi.org/10.1088/1674-1056/19/6/060508
ExaminationUS2008297122
    - Marian K. Kazimierczuk, "Chapter 13: Current-mode Control", Pulse-Width Modulated DC-DC Power Converters, U.K., John Wiley & Sons, Ltd., (20080916), pages 511 - 570, doi:10.1002/9780470694640.ch13, ISBN 978-0-47-069464-0, XP055174330

DOI:   http://dx.doi.org/10.1002/9780470694640.ch13
    - HAFIZ M ET AL, "A very low voltage high duty cycle step-up regulator", ELECTRICAL AND COMPUTER ENGINEERING, 2008. ICECE 2008. INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, (20081220), ISBN 978-1-4244-2014-8, pages 506 - 511, XP031414913
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.