JPS6459798A - Incandescent lamp lighting device - Google Patents

Incandescent lamp lighting device

Info

Publication number
JPS6459798A
JPS6459798A JP62215121A JP21512187A JPS6459798A JP S6459798 A JPS6459798 A JP S6459798A JP 62215121 A JP62215121 A JP 62215121A JP 21512187 A JP21512187 A JP 21512187A JP S6459798 A JPS6459798 A JP S6459798A
Authority
JP
Japan
Prior art keywords
voltage
output voltage
circuit
inverter 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
JP62215121A
Other languages
Japanese (ja)
Inventor
Hirotoshi Sugimoto
Giichi Suzuki
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.)
Ushio Denki KK
Ushio Inc
Original Assignee
Ushio Denki KK
Ushio Inc
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 Ushio Denki KK, Ushio Inc filed Critical Ushio Denki KK
Priority to JP62215121A priority Critical patent/JPS6459798A/en
Publication of JPS6459798A publication Critical patent/JPS6459798A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

PURPOSE:To make a circuit small-sized and simplified and to obtain a long life of the circuit by performing output control on a pre-stage of an inverter circuit to apply only a voltage required for lighting a lamp to a primary side of the inverter. CONSTITUTION:A transistor(Tr) driving circuit 9 is used to regulate a base current of a Tr8 and to perform on-and-off control of the Tr8. An output voltage from a rectifier 2 is switching-controlled by the Tr8 and it is supplied to an inverter circuit 4. The inverter circuit 4 supplies a lamp 7 with an output voltage required for lighting the lamp. When a power supply voltage rises, the output voltage of the Tr8 also rises to be inputted to an operational amplifier 10 so that the output voltage of the amplifier 10 rises. A comparator 11 functions to compare the output voltage of the amplifier 10 with a referential voltage Vref. According as the input voltage on a - terminal is larger or smaller than the input voltage on a + terminal, the Tr8 is turned on or off respectively by the comparator 11, so that the input voltage to the inverter circuit 4 is made constant.
JP62215121A 1987-08-31 1987-08-31 Incandescent lamp lighting device Pending JPS6459798A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62215121A JPS6459798A (en) 1987-08-31 1987-08-31 Incandescent lamp lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62215121A JPS6459798A (en) 1987-08-31 1987-08-31 Incandescent lamp lighting device

Publications (1)

Publication Number Publication Date
JPS6459798A true JPS6459798A (en) 1989-03-07

Family

ID=16667086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62215121A Pending JPS6459798A (en) 1987-08-31 1987-08-31 Incandescent lamp lighting device

Country Status (1)

Country Link
JP (1) JPS6459798A (en)

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