JPS62155500U - - Google Patents
Info
- Publication number
- JPS62155500U JPS62155500U JP4296886U JP4296886U JPS62155500U JP S62155500 U JPS62155500 U JP S62155500U JP 4296886 U JP4296886 U JP 4296886U JP 4296886 U JP4296886 U JP 4296886U JP S62155500 U JPS62155500 U JP S62155500U
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- voltage
- circuit
- triangular wave
- lamp voltage
- 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
Description
第１図に本考案に係る調光装置の実施例を示す
回路図、第２図は従来の調光装置を示す回路図、
第３図は第１図及び第２図におけるランプの電源
電圧に対する抵抗値の特性を示す図である。
１……三角波発生回路、２……矩形波発生回路
、３……ランプ駆動回路、４……抵抗式調光回路
、Ｌ１，Ｌ２，Ｌ３……ランプ。
FIG. 1 is a circuit diagram showing an embodiment of a light control device according to the present invention, FIG. 2 is a circuit diagram showing a conventional light control device,
FIG. 3 is a diagram showing the characteristics of the resistance value with respect to the power supply voltage of the lamp in FIGS. 1 and 2. DESCRIPTION OF SYMBOLS 1... Triangular wave generation circuit, 2... Rectangular wave generation circuit, 3... Lamp drive circuit, 4... Resistive dimming circuit, L1 , L2 , L3 ... Lamp.
Claims (1)
のランプ電圧を設定するランプ電圧設定回路と、
前記三角波発生回路の三角波と前記ランプ電圧設
定回路のランプ電圧に応じた電圧とを比較し矩形
波を出力する矩形波発生回路と、前記矩形波によ
つて第２のランプを駆動するランプ駆動回路とを
備え、前記第１のランプのランプ電圧に応じて第
２のランプが調光される調光装置であつて、前記
三角波発生回路は、その出力が第１のランプのラ
ンプ電圧に対して電圧依存性を持つように構成し
たことを特徴とする調光装置。 a triangular wave generation circuit; a lamp voltage setting circuit that sets the lamp voltage of the first lamp using a resistor;
a rectangular wave generating circuit that compares the triangular wave of the triangular wave generating circuit with a voltage according to the lamp voltage of the lamp voltage setting circuit and outputs a rectangular wave; and a lamp driving circuit that drives a second lamp using the rectangular wave. , wherein the second lamp is dimmed in accordance with the lamp voltage of the first lamp, wherein the triangular wave generation circuit has an output that is proportional to the lamp voltage of the first lamp. A light control device characterized in that it is configured to have voltage dependence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4296886U JPS62155500U (en) | 1986-03-26 | 1986-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4296886U JPS62155500U (en) | 1986-03-26 | 1986-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62155500U true JPS62155500U (en) | 1987-10-02 |
Family
ID=30859386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4296886U Pending JPS62155500U (en) | 1986-03-26 | 1986-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62155500U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0218755U (en) * | 1988-07-25 | 1990-02-07 |
-
1986
- 1986-03-26 JP JP4296886U patent/JPS62155500U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0218755U (en) * | 1988-07-25 | 1990-02-07 |
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