JPS54109267A - Two lamp emergency lighting fixture - Google Patents

Two lamp emergency lighting fixture

Info

Publication number
JPS54109267A
JPS54109267A JP1703178A JP1703178A JPS54109267A JP S54109267 A JPS54109267 A JP S54109267A JP 1703178 A JP1703178 A JP 1703178A JP 1703178 A JP1703178 A JP 1703178A JP S54109267 A JPS54109267 A JP S54109267A
Authority
JP
Japan
Prior art keywords
commercial
circuit
power
lighting circuit
lamp
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
JP1703178A
Other languages
Japanese (ja)
Inventor
Seiji Soga
Mitsuo Yokoyama
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 JP1703178A priority Critical patent/JPS54109267A/en
Publication of JPS54109267A publication Critical patent/JPS54109267A/en
Pending legal-status Critical Current

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Landscapes

  • Stand-By Power Supply Arrangements (AREA)

Abstract

PURPOSE: To accomplish higher power factor by means of a second commercial lighting circuit formed employing an AC switch circuit adapted to conduct during the supply of commercial power.
CONSTITUTION: Two lamps 4 and 5 are provided at the luminare section 3 in such a manner that at least one of the lamps is lighted by the DC power through an emergency lighting circuit 13 at emergency. One lamp 4 is so arranged to be lighted on a commercial basis by a commercial lighting circuit 8 composed of a series circuit including a choke coil 6 and a capacitor 7. With such an arrangement, the DC power is shut off with a capacitor 7 in the commercial lighting circuit 8 during the transmission of DC current while is formed a second commercial lighting circuit 12 employing an AC switch circuit 11 which comprises a diode bridge 9 and a transistor 10 in such a manner as to conduct during the supply of commercial power. The circuit 12 allows the other lamp 5 to come on.
COPYRIGHT: (C)1979,JPO&Japio
JP1703178A 1978-02-15 1978-02-15 Two lamp emergency lighting fixture Pending JPS54109267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1703178A JPS54109267A (en) 1978-02-15 1978-02-15 Two lamp emergency lighting fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1703178A JPS54109267A (en) 1978-02-15 1978-02-15 Two lamp emergency lighting fixture

Publications (1)

Publication Number Publication Date
JPS54109267A true JPS54109267A (en) 1979-08-27

Family

ID=11932621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1703178A Pending JPS54109267A (en) 1978-02-15 1978-02-15 Two lamp emergency lighting fixture

Country Status (1)

Country Link
JP (1) JPS54109267A (en)

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