JPH0298498U

JPH0298498U -

Info

Publication number: JPH0298498U
Application number: JP754789U
Authority: JP
Priority date: 1989-01-25
Filing date: 1989-01-25
Publication date: 1990-08-06
Also published as: JPH0443998Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の電気回路図、第２
図は第１図に示される実施例の動作を説明するた
めの図、第３図は本考案の他の実施例の電気回路
図、第４図は先行技術の電気回路図、第５図は他
の先行技術の電気回路図、第６図は第５図に示さ
れる先行技術の動作を説明するための図、第７図
は第５図に示される先行技術の特性を示す図であ
る。Ｌ１〜Ｌｎ……照明負荷、ＤＲ１〜ＤＲｎ……
駆動回路、Ｒ２１〜Ｒ２ｎ……レベル設定器、Ｑ
１〜Ｑｎ……スイツチングトランジスタ、Ｄ１〜
Ｄｎ……ダイオード、Ｒ１……第１抵抗、Ｒ０１
，Ｒ０……第２抵抗、１８，１８ａ……導体ライ
ン。 Fig. 1 is an electrical circuit diagram of one embodiment of the present invention;
The figures are for explaining the operation of the embodiment shown in Fig. 1, Fig. 3 is an electric circuit diagram of another embodiment of the present invention, Fig. 4 is an electric circuit diagram of the prior art, and Fig. 5 is a diagram for explaining the operation of the embodiment shown in Fig. 1. FIG. 6 is a diagram for explaining the operation of the prior art shown in FIG. 5, and FIG. 7 is a diagram showing the characteristics of the prior art shown in FIG. 5. L1~Ln...Lighting load, DR1~DRn...
Drive circuit, R21 to R2n...Level setter, Q
1~Qn...Switching transistor, D1~
Dn...Diode, R1...First resistor, R01
, R0... second resistor, 18, 18a... conductor line.

補正平２．１．２４実用新案登録請求の範囲を次のように補正する
。Amendment 2.1.24. The scope of claims for utility model registration is amended as follows.

【実用新案登録請求の範囲】照明負荷と、照明負荷毎に設けられ、順次的に導通されるス
イツチング手段と、照明負荷に個別的に対応して設けられ、第１電
位と第２電位との間の出力である調光レベルを設
定するレベル設定器と、一端部がレベル設定器の出力にそれぞれ接続さ
れ、他端部が共通に接続されるダイオードと、ダイオードの前記他端部に一端部が直列に接続
される第１抵抗と、第１抵抗の他端部に一端部が接続され、他端部
が前記第１電位または第２電位との間に接続され
、第１抵抗よりも小さい抵抗値を有する第２抵抗
と、第１抵抗と第２抵抗との接続点の第２抵抗近傍
の電位を読取る手段とを含むことを特徴とする調
光レベル設定装置。[Scope of Claim for Utility Model Registration] A lighting load, a switching means provided for each lighting load and sequentially turned on, and a switching means provided individually corresponding to the lighting load and switching between a first potential and a second potential. a level setter that sets the dimming level that is the output between; a diode having one end connected to the output of the level setter and the other end connected in common; and one end connected to the other end of the diode. is connected in series, one end is connected to the other end of the first resistor, the other end is connected between the first potential or the second potential, and is smaller than the first resistor. A dimming level setting device comprising: a second resistor having a resistance value; and means for reading a potential near the second resistor at a connection point between the first resistor and the second resistor.

Claims

[Scope of Claim for Utility Model Registration] A lighting load, a switching means provided for each lighting load and sequentially turned on, and a switching means provided individually corresponding to the lighting load and switching between a first potential and a second potential. a level setter that sets the dimming level that is the output between; a diode whose one end is connected to the output of the level setter, and whose other end is connected in common; and a diode connected in series to the other end of the diode. a first resistor connected; a second resistor connected in relation to the first resistor and having a smaller resistance value than the first resistor; and a second resistor near the connection point between the first resistor and the second resistor. A dimming level setting device comprising: means for reading a potential.