JPS6084098U

JPS6084098U - Multiple discharge lamp lighting device

Info

Publication number: JPS6084098U
Application number: JP17578183U
Authority: JP
Inventors: 山崎　広義; 安西　良矩
Original assignee: 三菱電機株式会社
Priority date: 1983-11-14
Filing date: 1983-11-14
Publication date: 1985-06-10

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例を示す概略回路図、第２図
は各部の動作波形を示す図、第３図、第４図及び第５図
はそれぞれこの考案の他の実施例を示す概略回路図であ
る。図において１は電流電源、２はインノ七−夕、３は第１
のスイッチ手段、３ａは第１スイッチ部、３ｂは第１制
御回路、４　ａｙ　４　ｂ、４　ｃは放電ランプ、６は
第２のスイッチ手段、６ａ、　　６ｂ、　　６Ｃは第２
スイッチ部、６ｄは第２制御回路である。なお、各図中
同一符号は同一または相当部分を示す。Fig. 1 is a schematic circuit diagram showing one embodiment of this invention, Fig. 2 is a diagram showing operating waveforms of each part, and Figs. 3, 4, and 5 each show other embodiments of this invention. It is a schematic circuit diagram. In the figure, 1 is the current power source, 2 is Inno Tanabata, and 3 is the first
3a is a first switch section, 3b is a first control circuit, 4 ay 4 b, 4 c are discharge lamps, 6 is a second switch means, 6 a, 6 b, and 6 C are second switch means.
The switch section 6d is a second control circuit. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

(1) An inverter that is connected to a DC power source and supplies high-frequency power to a plurality of discharge lamps, a first switch section, and this first switch section.
a first control circuit that controls on/off the switch section, and a first switch means that intermittently controls the output state of the high-frequency power of the inverter; a switch group consisting of a plurality of second switch sections; a second control circuit that selectively supplies an on signal to a predetermined second switch section of the switch group in synchronization with an on signal from the control circuit to the first switch section, and supplies the on signal to the plurality of discharge lamps. A discharge lamp lighting device for multiple lamps, comprising: a second switch means for selectively controlling a supply state of high-frequency power supplied from the above-mentioned inverter;

(2) The multiple discharge lamp lighting device according to claim 1, wherein the second switch section is a bidirectional thyristor.

(3) The plurality of discharge lamps are connected in parallel to the output end of the inverter, and the plurality of second switch sections are each connected in series with the discharge lamps. Claim 1 The multiple discharge lamp lighting device according to item 1 or 2.

(4) Utility model registration claim 1, characterized in that the plurality of discharge lamps are connected in series to the output end of the inverter, and the plurality of second switch sections are respectively connected in parallel with the discharge lamps. The multiple discharge lamp lighting device according to item 1 or 2.