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1. (WO2018198000) CIRCUIT AND METHOD FOR PROVIDING A CONSTANT MAGNETIC FIELD TO ACTUATE ELECTROMECHANICAL RELAYS AND CONTACTORS OVER A LARGE TEMPERATURE RANGE
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Pub. No.: WO/2018/198000 International Application No.: PCT/IB2018/052728
Publication Date: 01.11.2018 International Filing Date: 19.04.2018
IPC:
H01H 47/02 (2006.01) ,H01H 47/22 (2006.01) ,G01K 7/24 (2006.01) ,G05F 7/00 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
47
Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
02
for modifying the operation of the relay
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
47
Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
22
for supplying energising current for relay coil
G PHYSICS
01
MEASURING; TESTING
K
MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
7
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat
16
using resistive elements
22
the element being a non-linear resistance, e.g. thermistor
24
in a specially-adapted circuit, e.g. bridge circuit
G PHYSICS
05
CONTROLLING; REGULATING
F
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
7
Regulating magnetic variables
Applicants:
TE CONNECTIVITY CORPORATION [US/US]; 1050 Westlakes Drive Berwyn, Pennsylvania 19312, US
Inventors:
DELACRUZ, Robert Steve Felisilda; US
GORENFLO, Richard Raymond; US
GAST, Richard Andrew; US
Agent:
STROUD, Adam L.; US
Priority Data:
15/581,91528.04.2017US
Title (EN) CIRCUIT AND METHOD FOR PROVIDING A CONSTANT MAGNETIC FIELD TO ACTUATE ELECTROMECHANICAL RELAYS AND CONTACTORS OVER A LARGE TEMPERATURE RANGE
(FR) CIRCUIT ET PROCÉDÉ DE FOURNITURE D'UN CHAMP MAGNÉTIQUE CONSTANT PERMETTANT D'ACTIONNER DES RELAIS ET DES CONTACTEURS ÉLECTROMÉCANIQUES SUR UNE LARGE PLAGE DE TEMPÉRATURES
Abstract:
(EN) A circuit and method for controlling a voltage applied to a coil 102 to actuate electromechanical relays or contactors. The strength of a magnetic field operating the coil is a function of the product of the number of turns of the coil wire and the magnitude of current passing through the coil wire. An adjustable voltage regulator 104 provides a regulated voltage at an output 112 to a first terminal 120 of the coil to energize the coil based on the temperature of the coil as sensed by a temperature sensing device 124 located proximate the coil. The regulated voltage is controlled based on the sensed coil temperature to consistently provide a current of optimal magnitude to actuate the coil at the sensed temperature. A transient voltage suppression circuit 134,136 may be used with the coil to suppress back electromotive force generated currents and voltages when the coil is de-energized.
(FR) La présente invention concerne un circuit et un procédé de commande d'une tension appliquée à une bobine (102) permettant d'actionner des relais ou contacteurs électromécaniques. La force d'un champ magnétique actionnant la bobine est une fonction du produit du nombre de spires du fil de bobine et de l'amplitude du courant traversant le fil de bobine. Un régulateur de tension réglable (104) fournit une tension régulée au niveau d'une sortie (112) à une première borne (102) de la bobine pour exciter la bobine sur la base de la température de la bobine telle qu'elle a été détectée par un dispositif de détection de température (124) situé à proximité de la bobine. La tension régulée est commandée sur la base de la température de bobine détectée pour fournir de manière constante un courant d'amplitude optimale permettant d'actionner la bobine à la température détectée. Un circuit de suppression de tension transitoire (134, 136) peut être utilisé avec la bobine pour supprimer les courants et les tensions générés par la force contre-électromotrice lorsque la bobine est désexcitée.
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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, JO, JP, KE, KG, KH, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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: English (EN)
Filing Language: English (EN)