FR3120490B1 - Capteur capacitif à immunité au bruit optimisée - Google Patents
Capteur capacitif à immunité au bruit optimisée Download PDFInfo
- Publication number
- FR3120490B1 FR3120490B1 FR2101990A FR2101990A FR3120490B1 FR 3120490 B1 FR3120490 B1 FR 3120490B1 FR 2101990 A FR2101990 A FR 2101990A FR 2101990 A FR2101990 A FR 2101990A FR 3120490 B1 FR3120490 B1 FR 3120490B1
- Authority
- FR
- France
- Prior art keywords
- duration
- series
- capacitive sensor
- noise immunity
- measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000036039 immunity Effects 0.000 title 1
- 238000005259 measurement Methods 0.000 abstract 4
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 230000003252 repetitive effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K17/955—Proximity switches using a capacitive detector
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960705—Safety of capacitive touch and proximity switches, e.g. increasing reliability, fail-safe
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/96071—Capacitive touch switches characterised by the detection principle
- H03K2217/960725—Charge-transfer
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960755—Constructional details of capacitive touch and proximity switches
- H03K2217/96078—Sensor being a wire or a strip, e.g. used in automobile door handles or bumpers
Landscapes
- Electronic Switches (AREA)
Abstract
Capteur (1) de proximité capacitif comprenant un microcontrôleur (20) configuré pour réaliser des mesures selon un schéma prédéterminé répétitif, ledit schéma comprenant une série de N mesures consécutives, N étant un nombre entier naturel supérieur ou égal à trois, dans laquelle, la durée entre deux conversions analogique-numérique consécutives de la première mesure de la série étant appelée durée de référence, la durée entre deux conversions analogique-numérique d’une mesure m de la série, m étant un nombre entier naturel compris entre 2 et N, est définie comme étant égale à la durée de référence additionnée du produit de (m-1) par une durée unitaire additionnelle prédéterminée. Figure pour l’abrégé : Fig 1
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2101990A FR3120490B1 (fr) | 2021-03-02 | 2021-03-02 | Capteur capacitif à immunité au bruit optimisée |
US18/262,264 US20240120920A1 (en) | 2021-03-02 | 2022-02-22 | Capacitive sensor with optimized noise immunity |
PCT/EP2022/054327 WO2022184494A1 (fr) | 2021-03-02 | 2022-02-22 | Capteur capacitif à immunité au bruit optimisée |
CN202280018678.5A CN116964940A (zh) | 2021-03-02 | 2022-02-22 | 具有优化抗噪性的电容传感器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2101990A FR3120490B1 (fr) | 2021-03-02 | 2021-03-02 | Capteur capacitif à immunité au bruit optimisée |
FR2101990 | 2021-03-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR3120490A1 FR3120490A1 (fr) | 2022-09-09 |
FR3120490B1 true FR3120490B1 (fr) | 2024-03-08 |
Family
ID=76375146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR2101990A Active FR3120490B1 (fr) | 2021-03-02 | 2021-03-02 | Capteur capacitif à immunité au bruit optimisée |
Country Status (4)
Country | Link |
---|---|
US (1) | US20240120920A1 (fr) |
CN (1) | CN116964940A (fr) |
FR (1) | FR3120490B1 (fr) |
WO (1) | WO2022184494A1 (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8169238B1 (en) * | 2007-07-03 | 2012-05-01 | Cypress Semiconductor Corporation | Capacitance to frequency converter |
US8089289B1 (en) * | 2007-07-03 | 2012-01-03 | Cypress Semiconductor Corporation | Capacitive field sensor with sigma-delta modulator |
US9590649B2 (en) * | 2014-10-17 | 2017-03-07 | Microchip Technology Incorporated | Analog-to-digital conversion with micro-coded sequencer |
US10353511B2 (en) * | 2016-08-19 | 2019-07-16 | Qualcomm Incorporated | Capacitance-to-voltage modulation circuit |
FR3085177B1 (fr) * | 2018-08-21 | 2020-10-30 | Continental Automotive France | Dispositif de detection de la presence d'un utilisateur pour le deverrouillage d'un ouvrant de vehicule automobile |
-
2021
- 2021-03-02 FR FR2101990A patent/FR3120490B1/fr active Active
-
2022
- 2022-02-22 CN CN202280018678.5A patent/CN116964940A/zh active Pending
- 2022-02-22 WO PCT/EP2022/054327 patent/WO2022184494A1/fr active Application Filing
- 2022-02-22 US US18/262,264 patent/US20240120920A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
FR3120490A1 (fr) | 2022-09-09 |
CN116964940A (zh) | 2023-10-27 |
US20240120920A1 (en) | 2024-04-11 |
WO2022184494A1 (fr) | 2022-09-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PLFP | Fee payment |
Year of fee payment: 2 |
|
PLSC | Publication of the preliminary search report |
Effective date: 20220909 |
|
CA | Change of address |
Effective date: 20221212 |
|
PLFP | Fee payment |
Year of fee payment: 3 |
|
PLFP | Fee payment |
Year of fee payment: 4 |