JPS5477475A - Discharge lamp lighting apparatus - Google Patents

Discharge lamp lighting apparatus

Info

Publication number
JPS5477475A
JPS5477475A JP14537277A JP14537277A JPS5477475A JP S5477475 A JPS5477475 A JP S5477475A JP 14537277 A JP14537277 A JP 14537277A JP 14537277 A JP14537277 A JP 14537277A JP S5477475 A JPS5477475 A JP S5477475A
Authority
JP
Japan
Prior art keywords
discharge lamp
inductance element
power source
circuit
same
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP14537277A
Other languages
Japanese (ja)
Other versions
JPS6112360B2 (en
Inventor
Hajime Yoshimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP14537277A priority Critical patent/JPS5477475A/en
Publication of JPS5477475A publication Critical patent/JPS5477475A/en
Publication of JPS6112360B2 publication Critical patent/JPS6112360B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

PURPOSE:To provide a discharge lamp lighting apparatus, in which re-striking voltage of arc caused at the initial stage of each half cycle of AC power source is lowered by connecting a series circuit of an inductance element and a capacitance element to another inductance element in main circuit in parallel to the same, whereby it is enabled to prevent spontaneous extinguishing of the discharge lamp. CONSTITUTION:Discharge lamp 5 is lighted by connecting the same to power source 4 and effecting phase-control of thyristor 6. Lamp current in the above circuit is larger than that in the conventional circuit in which an inductance element is connected to a thyristor in series with the same, by an amount produced by LC-oscillation of the above inductance element 2 and capacitance element 3. Resultantly, current at the initial starting stage of each cycle of power source 4 is increased, so that its peak voltage functioning as re-striking voltage of arc is lowered as compared with that in the conventional arrangement.
JP14537277A 1977-11-30 1977-11-30 Discharge lamp lighting apparatus Granted JPS5477475A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14537277A JPS5477475A (en) 1977-11-30 1977-11-30 Discharge lamp lighting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14537277A JPS5477475A (en) 1977-11-30 1977-11-30 Discharge lamp lighting apparatus

Publications (2)

Publication Number Publication Date
JPS5477475A true JPS5477475A (en) 1979-06-20
JPS6112360B2 JPS6112360B2 (en) 1986-04-08

Family

ID=15383689

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14537277A Granted JPS5477475A (en) 1977-11-30 1977-11-30 Discharge lamp lighting apparatus

Country Status (1)

Country Link
JP (1) JPS5477475A (en)

Also Published As

Publication number Publication date
JPS6112360B2 (en) 1986-04-08

Similar Documents

Publication Publication Date Title
US4337417A (en) Starting and operating apparatus for high-pressure sodium lamps
JPS5410584A (en) Discharge-lamp lighting circuit
JPS5219481A (en) Lighting device for use in a discharge lamp
JPS5477475A (en) Discharge lamp lighting apparatus
GB1528910A (en) Discharge lamp ballast circuits
ES446497A1 (en) Arrangement including a gas and/or vapor discharge lamp
JPS53106134A (en) Power source
ES483620A1 (en) Variable frequency dimming for high intensity gaseous discharge lamps
JPS5493875A (en) Discharge lamp lighting apparatus
JPS54476A (en) Circuit for metal vapor filled descharge lamp
KR920002098B1 (en) Discharge circuit for pulse power discharge lamps
JPS52151268A (en) Discharge lamp lighting device
JPS54109268A (en) Discharge lamp lighting apparatus
JPS5291573A (en) Discharge lamp lighting apparatus
GB557240A (en) Improvements relating to supply circuits for the operation of electric discharge lamps
JPS5464872A (en) Discharge lamp lighting apparatus
FR2383576A1 (en) Starter and supply circuit for fluorescent tubes - has series resonant circuit using current limiting choke for starting and variable resistance for light control
JPS51133984A (en) Discharge lamp lighting system
GB623529A (en) Improvements in and relating to circuits for electric discharge lamps
JPS5496272A (en) Discharge lamp lighting circuit
JPS5493874A (en) Discharge lamp lighting apparatus
JPS52101877A (en) Firing device for high voltage vapor discharge lamp
JPS5293183A (en) Discharge lamp starting circuit
GB551487A (en) Improvements in circuit arrangements for operating electric discharge lamps
JPS5380775A (en) Discharge lamp lighting device