JPS61101049U - - Google Patents

Info

Publication number
JPS61101049U
JPS61101049U JP18694184U JP18694184U JPS61101049U JP S61101049 U JPS61101049 U JP S61101049U JP 18694184 U JP18694184 U JP 18694184U JP 18694184 U JP18694184 U JP 18694184U JP S61101049 U JPS61101049 U JP S61101049U
Authority
JP
Japan
Prior art keywords
circuit
lamp
signal
drive
dimmer
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
JP18694184U
Other languages
Japanese (ja)
Other versions
JPH0218755Y2 (en
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 JP1984186941U priority Critical patent/JPH0218755Y2/ja
Publication of JPS61101049U publication Critical patent/JPS61101049U/ja
Application granted granted Critical
Publication of JPH0218755Y2 publication Critical patent/JPH0218755Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Audible And Visible Signals (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)

Description

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

第１図及び第２図は本考案の一実施例を示すも
ので、第１図は結線図、第２図は作用説明用のタ
イミングチヤートである。また、第３図は本考案
の他の実施例を示す第１図相当図である。 図中、１はバツテリ、２はライテイングスイツ
チ、３は調光回路、４は可変抵抗、５，２５はラ
ンプ、６は補助調光回路、７，７′は三角波発生
回路、１４は分圧回路、１７は比較回路、１８は
駆動回路を示す。 1 and 2 show one embodiment of the present invention, FIG. 1 is a wiring diagram, and FIG. 2 is a timing chart for explaining the operation. Moreover, FIG. 3 is a diagram corresponding to FIG. 1 showing another embodiment of the present invention. In the figure, 1 is a battery, 2 is a lighting switch, 3 is a dimming circuit, 4 is a variable resistor, 5 and 25 are lamps, 6 is an auxiliary dimming circuit, 7 and 7' are a triangular wave generation circuit, and 14 is a voltage dividing circuit. , 17 is a comparison circuit, and 18 is a drive circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ランプ電流を可変抵抗によつて調節することに
よりそのランプによる照度を制御する調光回路を
備えたものにおいて、前記ランプの印加電圧と三
角波信号とを比較してその印加電圧に応じたデユ
ーテイ比で駆動用信号を出力する信号発生回路、
並びに前記駆動用信号の増幅出力によつて他のラ
ンプを通電点灯させる駆動回路より成る補助調光
回路を設けたことを特徴とする車両用調光回路。 In a device equipped with a dimming circuit that controls the illuminance of the lamp by adjusting the lamp current with a variable resistor, the voltage applied to the lamp is compared with a triangular wave signal, and a duty ratio is set according to the applied voltage. A signal generation circuit that outputs driving signals,
A dimmer circuit for a vehicle, further comprising an auxiliary dimmer circuit comprising a drive circuit that energizes and lights up other lamps using the amplified output of the drive signal.
JP1984186941U 1984-12-10 1984-12-10 Expired JPH0218755Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1984186941U JPH0218755Y2 (en) 1984-12-10 1984-12-10

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984186941U JPH0218755Y2 (en) 1984-12-10 1984-12-10

Publications (2)

Publication Number Publication Date
JPS61101049U true JPS61101049U (en) 1986-06-27
JPH0218755Y2 JPH0218755Y2 (en) 1990-05-24

Family

ID=30744407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984186941U Expired JPH0218755Y2 (en) 1984-12-10 1984-12-10

Country Status (1)

Country Link
JP (1) JPH0218755Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6338051A (en) * 1986-07-31 1988-02-18 Nippon Seiki Co Ltd Indicating part luminance adjusting unit of indicating device for vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938148A (en) * 1982-08-24 1984-03-01 Mazda Motor Corp Illumination device for automobile compartment
JPS6051149U (en) * 1983-09-16 1985-04-10 本田技研工業株式会社 Instrument lighting system
JPS60121948U (en) * 1984-01-27 1985-08-17 パイオニア株式会社 Lighting control device for in-vehicle electronic equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051149B2 (en) * 1981-06-01 1985-11-12 富士通株式会社 Access control method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938148A (en) * 1982-08-24 1984-03-01 Mazda Motor Corp Illumination device for automobile compartment
JPS6051149U (en) * 1983-09-16 1985-04-10 本田技研工業株式会社 Instrument lighting system
JPS60121948U (en) * 1984-01-27 1985-08-17 パイオニア株式会社 Lighting control device for in-vehicle electronic equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6338051A (en) * 1986-07-31 1988-02-18 Nippon Seiki Co Ltd Indicating part luminance adjusting unit of indicating device for vehicle

Also Published As

Publication number Publication date
JPH0218755Y2 (en) 1990-05-24

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