JPH01135698U - - Google Patents

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Publication number
JPH01135698U
JPH01135698U JP3154088U JP3154088U JPH01135698U JP H01135698 U JPH01135698 U JP H01135698U JP 3154088 U JP3154088 U JP 3154088U JP 3154088 U JP3154088 U JP 3154088U JP H01135698 U JPH01135698 U JP H01135698U
Authority
JP
Japan
Prior art keywords
circuit
discharge lamp
lighting
lighting device
detection circuit
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
Application number
JP3154088U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP3154088U priority Critical patent/JPH01135698U/ja
Publication of JPH01135698U publication Critical patent/JPH01135698U/ja
Pending legal-status Critical Current

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  • Circuit Arrangements For Discharge Lamps (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案の放電灯点灯装置における一
実施例の概略構成を示す回路ブロツク図、第２図
はこのランプ電圧検出回路の具体的構成を示す回
路ブロツク図、第３図は従来のキセノンランプ点
灯装置の概略構成を示すブロツク図である。 図中、２：整流平滑回路、３：スイツチング回
路、４：インバータトランス、６：電流検出回路
、８：ランプ電圧検出回路、１０：ランプ、１１
：基準値比較回路、１２：パルス幅変調回路、１
３：ドライブ回路、８１：タイマ回路、８２：比
較回路、８３：過電圧信号発生回路、８４：ラン
プ電圧検出器。 FIG. 1 is a circuit block diagram showing a schematic configuration of one embodiment of the discharge lamp lighting device of this invention, FIG. 2 is a circuit block diagram showing a specific configuration of this lamp voltage detection circuit, and FIG. 3 is a circuit block diagram of a conventional xenon FIG. 1 is a block diagram showing a schematic configuration of a lamp lighting device. In the figure, 2: rectifier smoothing circuit, 3: switching circuit, 4: inverter transformer, 6: current detection circuit, 8: lamp voltage detection circuit, 10: lamp, 11
: Reference value comparison circuit, 12: Pulse width modulation circuit, 1
3: Drive circuit, 81: Timer circuit, 82: Comparison circuit, 83: Overvoltage signal generation circuit, 84: Lamp voltage detector.

Claims (1)

【実用新案登録請求の範囲】 (1) インバータトランスと、その一次側には第
１の整流平滑回路と、半導体スイツチング回路と
を有し、また、二次側には、第２の整流平滑回路
と、放電灯と、点灯開始時には放電灯に高電圧を
供給するスタータとを有する放電灯点灯装置にお
いて、前記スタータの前段に放電灯の点灯電圧を
検出する点灯電圧検出回路を設け、この点灯電圧
検出回路にはタイマ回路と比較回路とを設けて外
部に付設された回路に駆動信号を出力する手段を
具備したことを特徴とする放電灯点灯装置。 (2) 外部に付設された回路として警報回路を付
設したことを特徴とする実用新案登録請求の範囲
第(1)項記載の放電灯点灯装置。[Claims for Utility Model Registration] (1) An inverter transformer, which has a first rectifying and smoothing circuit and a semiconductor switching circuit on its primary side, and a second rectifying and smoothing circuit on its secondary side. In a discharge lamp lighting device having a discharge lamp and a starter that supplies a high voltage to the discharge lamp at the time of starting lighting, a lighting voltage detection circuit for detecting the lighting voltage of the discharge lamp is provided in a stage before the starter, and the lighting voltage detection circuit detects the lighting voltage of the discharge lamp. 1. A discharge lamp lighting device, characterized in that the detection circuit includes a timer circuit and a comparison circuit, and means for outputting a drive signal to an externally attached circuit. (2) The discharge lamp lighting device according to claim (1) of the utility model registration claim, characterized in that an alarm circuit is attached as an externally attached circuit.
JP3154088U 1988-03-11 1988-03-11 Pending JPH01135698U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3154088U JPH01135698U (en) 1988-03-11 1988-03-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3154088U JPH01135698U (en) 1988-03-11 1988-03-11

Publications (1)

Publication Number Publication Date
JPH01135698U true JPH01135698U (en) 1989-09-18

Family

ID=31257463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3154088U Pending JPH01135698U (en) 1988-03-11 1988-03-11

Country Status (1)

Country Link
JP (1) JPH01135698U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05226085A (en) * 1992-02-07 1993-09-03 Suga Shikenki Kk Protective circuit of xenon lamp

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5738595A (en) * 1980-08-20 1982-03-03 Ushio Electric Inc Device for firing dc discharge lamp
JPS60210169A (en) * 1984-04-03 1985-10-22 Matsushita Electric Ind Co Ltd Safety device for high frequency oscillator
JPS6154187A (en) * 1984-08-24 1986-03-18 松下電工株式会社 Device for firing discharge lamp
JPS62232896A (en) * 1986-04-03 1987-10-13 和光電材機器株式会社 Discharge lamp circuit abnormality detector
JPS634100B2 (en) * 1981-10-26 1988-01-27 Matsushita Electric Ind Co Ltd
JPS6334890A (en) * 1986-07-28 1988-02-15 松下電工株式会社 Discharge lamp lighter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5738595A (en) * 1980-08-20 1982-03-03 Ushio Electric Inc Device for firing dc discharge lamp
JPS634100B2 (en) * 1981-10-26 1988-01-27 Matsushita Electric Ind Co Ltd
JPS60210169A (en) * 1984-04-03 1985-10-22 Matsushita Electric Ind Co Ltd Safety device for high frequency oscillator
JPS6154187A (en) * 1984-08-24 1986-03-18 松下電工株式会社 Device for firing discharge lamp
JPS62232896A (en) * 1986-04-03 1987-10-13 和光電材機器株式会社 Discharge lamp circuit abnormality detector
JPS6334890A (en) * 1986-07-28 1988-02-15 松下電工株式会社 Discharge lamp lighter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05226085A (en) * 1992-02-07 1993-09-03 Suga Shikenki Kk Protective circuit of xenon lamp

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