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1. (WO2017090352) ELECTRONIC DEVICE PROVIDED WITH SECONDARY FAILURE PREVENTING CIRCUIT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/090352 International Application No.: PCT/JP2016/081207
Publication Date: 01.06.2017 International Filing Date: 21.10.2016
IPC:
H03K 17/00 (2006.01) ,B60R 16/02 (2006.01) ,G01R 31/00 (2006.01) ,G01R 31/02 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
K
PULSE TECHNIQUE
17
Electronic switching or gating, i.e. not by contact-making and -breaking
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
R
VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
16
Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
02
electric
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31
Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31
Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
02
Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
Applicants:
ボッシュ株式会社 BOSCH CORPORATION [JP/JP]; 東京都渋谷区渋谷3丁目6番7号 6-7, Shibuya 3-chome, Shibuya-ku, Tokyo 1508360, JP
Inventors:
石倉 敬之 ISHIKURA Takayuki; JP
Priority Data:
2015-22825323.11.2015JP
Title (EN) ELECTRONIC DEVICE PROVIDED WITH SECONDARY FAILURE PREVENTING CIRCUIT
(FR) DISPOSITIF ÉLECTRONIQUE POURVU D'UN CIRCUIT DE PRÉVENTION DE DÉFAILLANCE SECONDAIRE
(JA) 波及故障防止回路を備えた電子装置
Abstract:
(EN) The objective of the present invention is to reliably prevent secondary damage or failure of an electronic component having a certain power supply voltage, arising from breakage of a common ground line to electronic components having different power supply voltages. The configuration is such that if the electric potential on the ground sides of first and second sensors 1, 2 is below a prescribed reference voltage, a 5V power supply voltage is supplied to the first and second sensors 1, 2 via a secondary failure preventing circuit 102, while if a shared ground line 32 breaks and the electric potential on the ground sides of the first and second sensors 1, 2 rises above the prescribed reference voltage, the supply of the 5V power supply voltage to the first and second sensors 1, 2 is shut off by the secondary failure preventing circuit 102, thereby preventing the occurrence of a reverse current from a vehicle battery 51 to second and fourth sensors 3, 4.
(FR) La présente invention vise à empêcher de manière fiable un endommagement ou défaillance secondaire d'un composant électronique ayant une certaine tension d'alimentation, résultant de la rupture d'une ligne de masse commune menant à des composants électroniques ayant différentes tensions d'alimentation. La configuration est telle que, si le potentiel électrique sur les côtés masse de premier et deuxième capteurs (1, 2) est inférieure à une tension de référence prescrite, une tension d'alimentation de 5 V est fournie aux premier et deuxième capteurs (1, 2) par l'intermédiaire d'un circuit de prévention de défaillance secondaire (102), tandis que si une ligne de masse partagée (32) est rompue et le potentiel électrique sur les côtés masse des premier et deuxième capteurs (1, 2) dépasse la tension de référence prescrite, la fourniture de la tension d'alimentation de 5 V aux premier et deuxième capteurs (1, 2) est coupée par le circuit de prévention de défaillance secondaire (102), ce qui permet d'empêcher l'apparition d'un courant inverse circulant d'une batterie de véhicule (51) vers des troisième et quatrième capteurs (3, 4).
(JA) 電源電圧の異なる電子部品の共通のグランド線の断線に起因して他の電源電圧の電子部品において波及的に生ずる破損や故障等を確実に防止する。 第1及び第2のセンサ1,2は、第1及び第2のセンサ1,2のそれぞれのグランド側の電位が所定の基準電圧を下回る場合には、波及故障防止回路102を介して5Vの電源電圧が供給される一方、共用グランド線32が断線し、第1及び第2のセンサ1,2のそれぞれのグランド側の電位が所定の基準電圧を上回る場合には、波及故障防止回路102により第1及び第2のセンサ1,2へ対する5Vの電源電圧の供給が遮断され、第2及び第4のセンサ3,4への車両用バッテリ51からの逆電流の発生が防止されるようになっている。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
JPWO2017090352CN108352830EP3382895IN201817015890