JPH0125427B2 - - Google Patents

Info

Publication number
JPH0125427B2
JPH0125427B2 JP6559781A JP6559781A JPH0125427B2 JP H0125427 B2 JPH0125427 B2 JP H0125427B2 JP 6559781 A JP6559781 A JP 6559781A JP 6559781 A JP6559781 A JP 6559781A JP H0125427 B2 JPH0125427 B2 JP H0125427B2
Authority
JP
Japan
Prior art keywords
lamp
voltage
output
circuit
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.)
Expired
Application number
JP6559781A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57179765A (en
Inventor
Satoshi Kubota
Yoshasu 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 JPS57179765A (en) 1982-11-05
JPH0125427B2 true JPH0125427B2 (en]) 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 (en])

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7327101B1 (en) * 2006-12-27 2008-02-05 General Electric Company Single point sensing for end of lamp life, anti-arcing, and no-load protection for electronic ballast
CN104076298B (zh) * 2013-03-29 2016-12-28 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及测试仪
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
CN104166105B (zh) * 2014-08-22 2016-09-14 东莞中之光电股份有限公司 管状灯具垂直循环老化系统
CN104166106B (zh) * 2014-08-22 2016-09-14 东莞中之光电股份有限公司 灯头灯具水平循环老化系统

Also Published As

Publication number Publication date
JPS57179765A (en) 1982-11-05

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