JPS63125397U - - Google Patents
Info
- Publication number
- JPS63125397U JPS63125397U JP1554087U JP1554087U JPS63125397U JP S63125397 U JPS63125397 U JP S63125397U JP 1554087 U JP1554087 U JP 1554087U JP 1554087 U JP1554087 U JP 1554087U JP S63125397 U JPS63125397 U JP S63125397U
- Authority
- JP
- Japan
- Prior art keywords
- comparator
- ultra
- high pressure
- pressure mercury
- mercury lamp
- 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
Links
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図はこの考案の一実施例である超高圧水銀
灯点灯装置における制御システムの主要部の概略
を示す図、第２図は従来の超高圧水銀灯点灯装置
における制御システムの主要部の概略を示す図、
第３図は従来及びこの考案の超高圧水銀灯点灯装
置のブロツク図、第４図は超高圧水銀灯の点灯時
における電圧・電流特性を示す図である。
図中、１：ランプ、６，７：比較器（オペアン
プ）、３２：スイツチングインバータ、３５：検
出比較回路、３６：制御回路、Ｃ：コンデンサ、
Ｒ１〜Ｒ１３：抵抗、ＶＲ１〜ＶＲ４：可変抵抗
、Ｔｒ：トランジスタ。
Fig. 1 is a diagram showing an outline of the main parts of the control system in an ultra-high pressure mercury lamp lighting device, which is an embodiment of this invention, and Fig. 2 is a diagram showing an outline of the main parts of the control system in a conventional ultra-high pressure mercury lamp lighting device. figure,
FIG. 3 is a block diagram of the conventional ultra-high pressure mercury lamp lighting device and the present invention, and FIG. 4 is a diagram showing the voltage/current characteristics when the ultra-high pressure mercury lamp is lit. In the figure, 1: lamp, 6, 7: comparator (op amp), 32: switching inverter, 35: detection comparison circuit, 36: control circuit, C: capacitor,
R1 to R13 : Resistor, VR1 to VR4 : Variable resistor, Tr: Transistor.
Claims (1)
路を一次側に備えた半導体スイツチング素子を含
むインバータトランスと、このインバータトラン
スの二次側に整流、平滑回路を介して超高圧水銀
灯及び超高圧水銀灯を点灯させるためのスタータ
と、この二次側に設けられた整流、平滑回路の出
力部から電流及び電圧を検出し、各々の基準信号
と比較する検出比較回路と、この検出比較回路か
らの信号に基づいて、前記半導体スイツチング素
子を制御する制御回路とを備えた超高圧水銀灯点
灯装置において、前記検出比較回路は点灯時に得
られる電流信号を制御するための第１の比較器と
、超高圧水銀灯の電圧の上昇に伴つて得られる電
力信号を制御するための第２の比較器とを有し、
前記第１の比較器の出力は前記制御回路の入力端
に接続され、第２の比較器の出力端は、前記第１
の比較器の基準信号に接続されていることを特徴
とする超高圧水銀灯点灯装置。 An inverter transformer that includes an AC power source, a semiconductor switching element with a circuit for rectifying and smoothing the AC power on the primary side, and an ultra-high pressure mercury lamp and an ultra-high pressure mercury lamp on the secondary side of the inverter transformer via a rectifying and smoothing circuit. A starter for lighting the starter, a detection comparison circuit that detects current and voltage from the output section of the rectification and smoothing circuit provided on the secondary side, and compares them with each reference signal, and a signal from this detection comparison circuit. In the ultra-high pressure mercury lamp lighting device, the detection and comparison circuit includes a first comparator for controlling a current signal obtained during lighting, and a control circuit for controlling the semiconductor switching element. a second comparator for controlling the power signal obtained as the voltage increases;
The output of the first comparator is connected to the input of the control circuit, and the output of the second comparator is connected to the first
An ultra-high pressure mercury lamp lighting device, characterized in that it is connected to a reference signal of a comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1554087U JPH0749760Y2 (en) | 1987-02-06 | 1987-02-06 | Ultra high pressure mercury lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1554087U JPH0749760Y2 (en) | 1987-02-06 | 1987-02-06 | Ultra high pressure mercury lamp lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63125397U true JPS63125397U (en) | 1988-08-16 |
| JPH0749760Y2 JPH0749760Y2 (en) | 1995-11-13 |
Family
ID=30806566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1554087U Expired - Lifetime JPH0749760Y2 (en) | 1987-02-06 | 1987-02-06 | Ultra high pressure mercury lamp lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749760Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0339299U (en) * | 1989-08-25 | 1991-04-16 |
-
1987
- 1987-02-06 JP JP1554087U patent/JPH0749760Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0339299U (en) * | 1989-08-25 | 1991-04-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0749760Y2 (en) | 1995-11-13 |