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1. WO1996002970 - INDUCTIVELY POWERED LIGHTING

Publication Number WO/1996/002970
Publication Date 01.02.1996
International Application No. PCT/NZ1995/000061
International Filing Date 11.07.1995
Chapter 2 Demand Filed 18.09.1995
IPC
E01F 9/06 2006.01
EFIXED CONSTRUCTIONS
01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
9Arrangement of road signs or traffic signals; Arrangements for enforcing caution
04Road surface markings; Kerbs or road edgings, specially adapted for informing road users, e.g. illuminated
06Traffic studs; Marking blocks
H02J 5/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
5Circuit arrangements for transfer of electric power between ac networks and dc networks
H02J 17/00 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
17Systems for supplying or distributing electric power by electromagnetic waves
H05B 33/08 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
33Electroluminescent light sources
08Circuit arrangements for operating electroluminescent light sources
H05B 39/00 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
39Circuit arrangements or apparatus for operating incandescent light sources
CPC
E01F 9/559
EFIXED CONSTRUCTIONS
01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
9Arrangement of road signs or traffic signals; Arrangements for enforcing caution
50Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
553Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members
559illuminated
F21W 2111/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
2111Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00F21W2107/00
02for roads, paths or the like
F21Y 2115/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
2115Light-generating elements of semiconductor light sources
10Light-emitting diodes [LED]
H02J 5/005
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
5Circuit arrangements for transfer of electric power between ac networks and dc networks
005with inductive power transfer
H02J 50/12
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
10using inductive coupling
12of the resonant type
H02J 50/40
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
40using two or more transmitting or receiving devices
Applicants
  • AUCKLAND UNISERVICES LIMITED [NZ/NZ]; UniServices House 58 Symonds Street Auckland 1001, NZ (AllExceptUS)
  • BOYS, John, Talbot [NZ/NZ]; NZ (UsOnly)
  • GREEN, Andrew, William [NZ/NZ]; NZ (UsOnly)
Inventors
  • BOYS, John, Talbot; NZ
  • GREEN, Andrew, William; NZ
Agents
  • PIPER, James, William ; James W Piper & Co. 46 Brown Street Ponsonby Auckland 1002, NZ
Priority Data
26400013.07.1994NZ
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) INDUCTIVELY POWERED LIGHTING
(FR) BLOC D'ECLAIRAGE A ALIMENTATION INDUCTIVE
Abstract
(EN)
An inductively powered lamp unit (500) that uses an inductive power pick up comprising a resonant circuit including an inductance (401) and capacitance (402), the induced current circulating in the resonant circuit is limited to a maximum value by a shorting switch (503) that closes a connection across the inductance (401) shorting the resonant circuit. The shorting switch (503) is controlled by a comparator (506) that compares the sensed current with a reference value (510). Voltage control may be similarly implemented. Power is supplied to LED's (405), control data may also be conveyed through the inductive link. Applications include roadway markers, fire escape indicators, underwater or explosive environmental lighting.
(FR)
Bloc d'éclairage à alimentation inductive (500) mettant en oeuvre une prise d'alimentation inductive comportant un circuit résonnant muni d'une inductance (401) et d'une capacité (402), le courant induit parcourant le circuit résonnant étant limité à une valeur maximale par un interrupteur de court-circuit (503) apte à fermer une connexion reliant entre eux les deux côtés de l'inductance (401) court-circuitant le circuit résonnant. L'interrupteur de court-circuit (503) est commandé par un comparateur (506) comparant le courant détecté avec une valeur de référence (510). Une régulation de la tension peut être mise en oeuvre de manière analogue. Des diodes lumineuses (405) sont alimentées et des données de commande peuvent également être transmises par l'intermédiaire de la liaison inductive. Applications: signalisation routière, indicateurs de sortie de secours, éclairage en milieu sous-marin ou déflagrant.
Also published as
NZ288765
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