NZ319727A - Inductively powered lighting - Google Patents

Inductively powered lighting

Info

Publication number
NZ319727A
NZ319727A NZ319727A NZ31972796A NZ319727A NZ 319727 A NZ319727 A NZ 319727A NZ 319727 A NZ319727 A NZ 319727A NZ 31972796 A NZ31972796 A NZ 31972796A NZ 319727 A NZ319727 A NZ 319727A
Authority
NZ
New Zealand
Prior art keywords
lamp
inductor
current
primary inductive
loop
Prior art date
Application number
NZ319727A
Inventor
John Talbot Boys
Andrew William Green
Original Assignee
Auckland Uniservices Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Auckland Uniservices Ltd filed Critical Auckland Uniservices Ltd
Priority to NZ319727A priority Critical patent/NZ319727A/en
Priority claimed from PCT/NZ1996/000111 external-priority patent/WO1997016054A1/en
Publication of NZ319727A publication Critical patent/NZ319727A/en

Links

Classifications

    • Y02B20/204—

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

ower is inductively coupled to devices having negative resistances, such as gas-filled discharge lamps (fluorescent tubes, neon signs, and the like) from a primary inductive loop, using resonant conditioning of the power provided to the device. A "C" shaped inductor (202) around the loop and a resonating capacitor (406) in parallel with the inductor provide a current source to the lamp (403) from across the capacitor. The circuit is capable of first igniting a lamp using a higher voltage available when the Q of the unloaded circuit is high, then running the lamp or other device at a controlled current. The lamp current is substantially proportional to the primary inductive loop flux, and substantially independent of the lamp resistance. A second inductor (404) in series with the first though not itself a collector of flux acts as a current limit. Applications include lighting, displays (optionally isolated and dimmable), and production of ultraviolet radiation.
NZ319727A 1995-10-24 1996-10-04 Inductively powered lighting NZ319727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ319727A NZ319727A (en) 1995-10-24 1996-10-04 Inductively powered lighting

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NZ28031995 1995-10-24
NZ319727A NZ319727A (en) 1995-10-24 1996-10-04 Inductively powered lighting
PCT/NZ1996/000111 WO1997016054A1 (en) 1995-10-24 1996-10-04 Inductively powered lighting

Publications (1)

Publication Number Publication Date
NZ319727A true NZ319727A (en) 2000-01-28

Family

ID=26651533

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ319727A NZ319727A (en) 1995-10-24 1996-10-04 Inductively powered lighting

Country Status (1)

Country Link
NZ (1) NZ319727A (en)

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