JPS61197694U - - Google Patents
Info
- Publication number
- JPS61197694U JPS61197694U JP8236585U JP8236585U JPS61197694U JP S61197694 U JPS61197694 U JP S61197694U JP 8236585 U JP8236585 U JP 8236585U JP 8236585 U JP8236585 U JP 8236585U JP S61197694 U JPS61197694 U JP S61197694U
- Authority
- JP
- Japan
- Prior art keywords
- switch element
- preheating
- turned
- lighting
- filament
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図はこの考案の実施例を示す回路図、第２
図は動作説明用の波形図である。
１…放電灯、２Ａ，２Ｂ…フイラメント、１０
…直流電源の端子、１１…点灯開始用のスイツチ
素子、１２，１３…予熱回路のスイツチ素子、１
５…起動用のスイツチ素子、１６…比較器、２１
…タイマ回路。
Figure 1 is a circuit diagram showing an embodiment of this invention, Figure 2 is a circuit diagram showing an embodiment of this invention.
The figure is a waveform diagram for explaining the operation. 1...Discharge lamp, 2A, 2B...Filament, 10
...DC power supply terminal, 11...Switch element for lighting start, 12, 13...Switch element of preheating circuit, 1
5... Switch element for starting, 16... Comparator, 21
...Timer circuit.
Claims (1)
熱用の電源との間に接続されてあつて、電源の投
入によつてオンとされ、前記フイラメントに定格
予熱電流よりも小さい予熱電流を供給する第１の
予熱用のスイツチ素子と、前記第１のスイツチ素
子がオンとされてからのちにオンとされる点灯用
のスイツチ素子と、前記点灯用のスイツチ素子の
オンによつてオンとされ、定格予熱電流よりも大
きい予熱電流を前記フイラメントに供給する第２
の予熱用のスイツチ素子と、前記点灯用のスイツ
チ素子がオンとされたときに動作を開始するタイ
マ回路と、前記タイマ回路に設定されてあるタイ
ヤ時間を経過したときに前記第２の予熱用のスイ
ツチ素子をオフとする回路とからなる放電灯点灯
装置。 A first circuit connected between a preheating circuit connected to a filament of a discharge lamp and a preheating power source, which is turned on when the power is turned on and supplies a preheating current smaller than the rated preheating current to the filament. a switch element for preheating, a switch element for lighting that is turned on after the first switch element is turned on, and a switch element for lighting that is turned on when the switch element for lighting is turned on; a second supplying a preheating current to the filament that is greater than the current;
a preheating switch element; a timer circuit that starts operating when the lighting switch element is turned on; and a second preheating switch element that starts operating when a certain tire time set in the timer circuit has elapsed. A discharge lamp lighting device consisting of a circuit that turns off a switch element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8236585U JPS61197694U (en) | 1985-05-30 | 1985-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8236585U JPS61197694U (en) | 1985-05-30 | 1985-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61197694U true JPS61197694U (en) | 1986-12-10 |
Family
ID=30630013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8236585U Pending JPS61197694U (en) | 1985-05-30 | 1985-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61197694U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60227395A (en) * | 1984-04-24 | 1985-11-12 | 松下電工株式会社 | Device for firing discharge lamp |
-
1985
- 1985-05-30 JP JP8236585U patent/JPS61197694U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60227395A (en) * | 1984-04-24 | 1985-11-12 | 松下電工株式会社 | Device for firing discharge lamp |
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