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1. WO2009010346 - CIRCUIT ARRANGEMENT HAVING AN INDUCTOR CONNECTED TO AN OSCILLATOR, AND METHOD FOR OPERATING SUCH A CIRCUIT ARRANGEMENT

Publication Number WO/2009/010346
Publication Date 22.01.2009
International Application No. PCT/EP2008/057392
International Filing Date 12.06.2008
IPC
H03K 17/95 2006.01
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and -breaking
94characterised by the way in which the control signals are generated
945Proximity switches
95using a magnetic detector
B61L 1/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
61RAILWAYS
LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
1Devices along the route controlled by interaction with the vehicle or vehicle train
02Electric devices associated with track
08magnetically actuated; electrostatically actuated
CPC
H03K 17/9502
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and –breaking
94characterised by the way in which the control signals are generated
945Proximity switches
95using a magnetic detector
9502Measures for increasing reliability
H03K 17/9525
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and –breaking
94characterised by the way in which the control signals are generated
945Proximity switches
95using a magnetic detector
952using inductive coils
9525controlled by an oscillatory signal
H03K 17/9535
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and –breaking
94characterised by the way in which the control signals are generated
945Proximity switches
95using a magnetic detector
952using inductive coils
953forming part of an oscillator
9535with variable amplitude
H03K 17/9547
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
KPULSE TECHNIQUE
17Electronic switching or gating, i.e. not by contact-making and –breaking
94characterised by the way in which the control signals are generated
945Proximity switches
95using a magnetic detector
952using inductive coils
9537in a resonant circuit
9542forming part of an oscillator
9547with variable amplitude
Applicants
  • SIEMENS AKTIENGESELLSCHAFT [DE]/[DE] (AllExceptUS)
  • RADWAN, Lutz-Helge [DE]/[DE] (UsOnly)
Inventors
  • RADWAN, Lutz-Helge
Common Representative
  • SIEMENS AKTIENGESELLSCHAFT
Priority Data
10 2007 034 270.719.07.2007DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) SCHALTUNGSANORDNUNG MIT EINER MIT EINEM OSZILLATOR VERBUNDENEN SPULE SOWIE VERFAHREN ZUM BETREIBEN EINER SOLCHEN SCHALTUNGSANORDNUNG
(EN) CIRCUIT ARRANGEMENT HAVING AN INDUCTOR CONNECTED TO AN OSCILLATOR, AND METHOD FOR OPERATING SUCH A CIRCUIT ARRANGEMENT
(FR) AGENCEMENT DE CIRCUIT AVEC UNE BOBINE RELIÉE À UN OSCILLATEUR ET PROCÉDÉ D'EXPLOITATION D'UN TEL AGENCEMENT DE CIRCUIT
Abstract
(DE)
Die Erfindung betrifft eine Schaltungsanordnung mit einer mit einem Oszillator (G) verbundenen Spule (L) sowie einer Überwachungsschaltung (DM, SB), die auf eine induktive Wechselwirkung der Spule (L) mit einem elektrisch leitfähigen Gegenstand empfindlich ist, wobei die Schaltungsanordnung erfindungsgemäß zum Ändern der der Spule (L) von dem Oszillator (G) zugeführten Leistung ausgebildet ist, sofern durch die Überwachungsschaltung (DM, SB) eine einen Schwellenwert überschreitende induktive Wechselwirkung erkannt wird. Die Erfindung betrifft des Weiteren ein Verfahren zum Betreiben einer Schaltungsanordnung mit einer mit einem Oszillator (G) verbundenen Spule (L).
(EN)
The invention relates to a circuit arrangement having a coil (L) connected to an oscillator (G), and a monitoring circuit (DM, SB) sensitive to an inductive interaction of the coil (L) with an electrically conducting object, wherein the circuit arrangement according to the invention is configured for changing the power supplied to the coil (L) by the oscillator (G) if an inductive interaction exceeding a threshold value is detected. The invention further relates to a method for operating a circuit arrangement having a coil (L) connected to an oscillator (G).
(FR)
L'invention concerne un agencement de circuit avec une bobine (L) attachée à un oscillateur (G) ainsi qu'un circuit de surveillance (DM, SB) qui est sensible à une interaction inductive de la bobine (L) avec un objet électriquement conducteur, l'agencement de circuit proposé par l'invention étant réalisé pour modifier la puissance apportée à la bobine (L) par l'oscillateur (G), à condition qu'une interaction inductive dépassant une valeur de seuil soit reconnue par le circuit de surveillance (DM, SB). L'invention concerne en outre un procédé de fonctionnement d'un agencement de circuit avec une bobine (L) reliée à un oscillateur (G).
Also published as
Latest bibliographic data on file with the International Bureau