JPS57179765A - Lamp life detecting circuit - Google Patents

Lamp life detecting circuit

Info

Publication number
JPS57179765A
JPS57179765A JP6559781A JP6559781A JPS57179765A JP S57179765 A JPS57179765 A JP S57179765A JP 6559781 A JP6559781 A JP 6559781A JP 6559781 A JP6559781 A JP 6559781A JP S57179765 A JPS57179765 A JP S57179765A
Authority
JP
Japan
Prior art keywords
voltage
lamp
counter
circuit
detecting 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.)
Granted
Application number
JP6559781A
Other languages
English (en)
Other versions
JPH0125427B2 (ja
Inventor
Satoshi Kubota
Yoshiyasu Sakaguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP6559781A priority Critical patent/JPS57179765A/ja
Publication of JPS57179765A publication Critical patent/JPS57179765A/ja
Publication of JPH0125427B2 publication Critical patent/JPH0125427B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/44—Testing lamps

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
JP6559781A 1981-04-30 1981-04-30 Lamp life detecting circuit Granted JPS57179765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6559781A JPS57179765A (en) 1981-04-30 1981-04-30 Lamp life detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6559781A JPS57179765A (en) 1981-04-30 1981-04-30 Lamp life detecting circuit

Publications (2)

Publication Number Publication Date
JPS57179765A true JPS57179765A (en) 1982-11-05
JPH0125427B2 JPH0125427B2 (ja) 1989-05-17

Family

ID=13291580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6559781A Granted JPS57179765A (en) 1981-04-30 1981-04-30 Lamp life detecting circuit

Country Status (1)

Country Link
JP (1) JPS57179765A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010515230A (ja) * 2006-12-27 2010-05-06 ゼネラル・エレクトリック・カンパニイ 電子バラスト用のランプ寿命末期、アーク放電防止、及び無負荷保護のための一点検知
CN103837844A (zh) * 2013-12-25 2014-06-04 河南理工大学 矿井巷道灯寿命对比检测装置及其控制方法
CN104076298A (zh) * 2013-03-29 2014-10-01 海洋王（东莞）照明科技有限公司 应急灯重复转换性能测试电路应急灯重复转换性能测试仪
CN104166106A (zh) * 2014-08-22 2014-11-26 东莞市中之光电科技有限公司 灯头灯具水平循环老化系统
CN104166105A (zh) * 2014-08-22 2014-11-26 东莞市中之光电科技有限公司 管状灯具垂直循环老化系统

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010515230A (ja) * 2006-12-27 2010-05-06 ゼネラル・エレクトリック・カンパニイ 電子バラスト用のランプ寿命末期、アーク放電防止、及び無負荷保護のための一点検知
CN104076298A (zh) * 2013-03-29 2014-10-01 海洋王（东莞）照明科技有限公司 应急灯重复转换性能测试电路应急灯重复转换性能测试仪
CN103837844A (zh) * 2013-12-25 2014-06-04 河南理工大学 矿井巷道灯寿命对比检测装置及其控制方法
CN103837844B (zh) * 2013-12-25 2016-08-24 河南理工大学 矿井巷道灯寿命对比检测装置及其控制方法
CN104166106A (zh) * 2014-08-22 2014-11-26 东莞市中之光电科技有限公司 灯头灯具水平循环老化系统
CN104166105A (zh) * 2014-08-22 2014-11-26 东莞市中之光电科技有限公司 管状灯具垂直循环老化系统

Also Published As

Publication number Publication date
JPH0125427B2 (ja) 1989-05-17

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