JPS642399U - - Google Patents
Info
- Publication number
- JPS642399U JPS642399U JP9795187U JP9795187U JPS642399U JP S642399 U JPS642399 U JP S642399U JP 9795187 U JP9795187 U JP 9795187U JP 9795187 U JP9795187 U JP 9795187U JP S642399 U JPS642399 U JP S642399U
- Authority
- JP
- Japan
- Prior art keywords
- discharge lamp
- starting
- main heater
- bimetallic switch
- power source
- 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
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Description
第１図は本考案の第１の実施例を示す回路構成
図、第２図は本考案の第２の実施例を示す回路構
成図、第３図は従来例を示す回路構成図、第４図
は同上の動作を説明するための概略構成図、第５
図および第６図は同上の動作を説明するための特
性図、第７図および第８図はそれぞれ更に異なる
従来例を示す回路構成図である。
Ｅ……交流電源、ＣＨ……誘導性限流要素、Ｌ
……放電灯、ＰＴＣ……正特性感熱素子、ＳＷ…
…始動用バイメタルスイツチ、Ｈ１……主ヒータ
、Ｈ２……補助ヒータ、ＴＰ１，Ｑ１……抑制手
段。
Fig. 1 is a circuit diagram showing a first embodiment of the present invention, Fig. 2 is a circuit diagram showing a second embodiment of the invention, Fig. 3 is a circuit diagram showing a conventional example, and Fig. 4 is a circuit diagram showing a second embodiment of the invention. The figure is a schematic configuration diagram for explaining the operation of the same as above.
6 and 6 are characteristic diagrams for explaining the same operation as above, and FIGS. 7 and 8 are circuit configuration diagrams showing further different conventional examples, respectively. E...AC power supply, CH...Inductive current limiting element, L
...Discharge lamp, PTC...Positive temperature sensitive element, SW...
...Bimetal switch for starting, H1...Main heater, H2...Auxiliary heater, TP1, Q1...Suppression means.
Claims (1)
の両端に前記誘導性限流要素を介して接続された
放電灯と、この放電灯のフイラメントの非電源側
両端間に正特性感熱素子を介して接続し予熱径路
を形成する常閉の始動用バイメタルスイツチと、
この予熱径路内に介挿された主ヒータを含みこの
主ヒータの発熱により前記始動用バイメタルスイ
ツチを開離する開路手段と、この始動用バイメタ
ルスイツチと並列関係に接続されたインピーダン
ス要素と補助ヒータとの直列回路を含み、放電灯
点灯時には前記始動用バイメタルスイツチを開離
状態に保持し得る電力を主ヒータに供給する保持
手段と、放電灯不点灯時に作動して前記始動用バ
イメタルスイツチを閉成状態にし得る電力を前記
補助ヒータに供給する再閉路手段と、放電灯寿命
時に前記正特性感熱素子の動作に応動して前記主
ヒータに流れる電流を減少させる抑制手段を少な
くとも前記主ヒータと直列接続し、前記始動用バ
イメタルスイツチを閉成状態に保持する保護手段
とを具備したことを特徴とする放電灯点灯装置。 an AC power source, an inductive current limiting element, a discharge lamp connected to both ends of the AC power source via the inductive current limiting element, and a positive temperature sensitive element between both ends of the filament of the discharge lamp on the non-power source side. a normally closed starting bimetallic switch that connects through and forms a preheating path;
an opening means that includes a main heater inserted in the preheating path and opens the starting bimetallic switch using heat generated by the main heater; an impedance element and an auxiliary heater connected in parallel with the starting bimetallic switch; holding means for supplying power to the main heater capable of keeping the starting bimetallic switch open when the discharge lamp is lit; and a holding means that operates to close the starting bimetallic switch when the discharge lamp is not lit. At least a reclosing means for supplying power to the auxiliary heater that can cause the discharge lamp to reach a state, and a suppressing means for reducing the current flowing to the main heater in response to the operation of the positive temperature sensitive element during the life of the discharge lamp are connected in series with at least the main heater. A discharge lamp lighting device characterized by comprising: a protection means for holding the starting bimetal switch in a closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9795187U JPS642399U (en) | 1987-06-25 | 1987-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9795187U JPS642399U (en) | 1987-06-25 | 1987-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS642399U true JPS642399U (en) | 1989-01-09 |
Family
ID=31323784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9795187U Pending JPS642399U (en) | 1987-06-25 | 1987-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS642399U (en) |
-
1987
- 1987-06-25 JP JP9795187U patent/JPS642399U/ja active Pending
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