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1. EP0978082 - DEVICE FOR STABILISING A MICROCIRCUIT SUPPLY VOLTAGE

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Office European Patent Office
Application Number 97925134
Application Date 26.05.1997
Publication Number 0978082
Publication Date 09.02.2000
Publication Kind B1
IPC
G06K 19/07
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
07with integrated circuit chips
G06K 7/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers
G06K 7/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers
G06K 19/07
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
07with integrated circuit chips
CPC
G06K 19/0713
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
0701at least one of the integrated circuit chips comprising an arrangement for power management
0713the arrangement including a power charge pump
G06K 7/0008
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns;
0008General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
G06K 19/0723
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
0723the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
Applicants INSIDE TECHNOLOGIES
Inventors KOWALSKI JACEK
Priority Data 9607835 19.06.1996 FR
9700915 26.05.1997 FR
Title
(DE) VORRICHTUNG ZUM STABILISIEREN DER VERSORGUNGSSPANNUNG EINES MIKROSCHALTKREISES
(EN) DEVICE FOR STABILISING A MICROCIRCUIT SUPPLY VOLTAGE
(FR) DISPOSITIF POUR STABILISER LA TENSION D'ALIMENTATION D'UN MICROCIRCUIT
front page image
Abstract
(EN)
This device (14) for stabilising a microcircuit supply voltage (Vst) comprises a stabilising capacitor (Chv, Cpp) biassed by a voltage (Vhv, Vpp) higher than the supply voltage (Vst), and at least one switching means (17) for connecting the stabilising capacitor (Chv, Cpp) with an internal supply line (15) of the microcircuit when the supply voltage (Vst) is lower than a predetermined threshold (Vmin). The advantage which the invention brings is to enable a reduction of the silicon surface required for the stabilising capacitor. The invention is useful for silicon integrated circuits, in particular smart card or electronic label microcircuits.

(FR)
Ce dispositif (14) de stabilisation de la tension (Vst) d'alimentation d'un microcircuit comprend une capacité de stabilisation (Chv, Cpp) polarisée par une tension (Vhv, Vpp) plus élevée que la tension d'alimentation (Vst), et au moins un moyen interrupteur (17) pour connecter la capacité de stabilisation (Chv, Cpp) une ligne d'alimentation interne (15) du microcircuit quand la tension d'alimentation (Vst) est inférieure à un seuil prédéterminé (Vmin). L'avantage qu'apporte l'invention est de permettre une réduction de la surface de silicium nécessaire à la capacité de stabilisation. L'invention est applicable aux circuits intégrés silicium, notamment aux microcircuits de cartes à puce ou d'étiquettes électroniques.
Also published as
AU1997030378
DE000069714784
FR2750227
WO/1997/049059
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