JPH07111193A - Control circuit for illuminating lamp - Google Patents

Control circuit for illuminating lamp

Info

Publication number
JPH07111193A
JPH07111193A JP25545493A JP25545493A JPH07111193A JP H07111193 A JPH07111193 A JP H07111193A JP 25545493 A JP25545493 A JP 25545493A JP 25545493 A JP25545493 A JP 25545493A JP H07111193 A JPH07111193 A JP H07111193A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
circuit
voltage
lamp
light
hysteresis
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
JP25545493A
Other languages
Japanese (ja)
Inventor
Toshikatsu Ito
Takayuki Ninomiya
孝行 二宮
敏勝 伊藤
Original Assignee
Hitachi Kaa Electron Kk
Hitachi Ltd
日立カーエレクトロニクス株式会社
株式会社日立製作所
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

Links

Abstract

PURPOSE: To perform stable illumination even when light quantity of a light sensor is suddenly changed by providing a hysteresis circuit and a delay circuit.
CONSTITUTION: Circuit power is supplied from a battery 1, and circuit protection and action stabilization are performed by a power supply circuit 3. a current at an optical sensor 2 is converted into a voltage to be inputted to a lighting/ lighting off determination circuit 4 provided with hysteresis, and when the voltage signal is less than a specified voltage, a voltage of 0V is outputted to a delay circuit 5 to put a relay 6 on immediately for lighting an illuminating lamp 17. When the inputted voltage signal into the circuit is the specified voltage or more, a voltage of 5V is outputted to the circuit 5, and only in the case where this output continues for a specified delay time or more, the relay 6 gets off to light off the illuminating lamp 7. In the meanwhile, the set specified delay time is changed as a capacitor capacity inside the circuit 5 changes. Stable illumination is thus provided even when light quantity of a light sensor is suddenly changed.
COPYRIGHT: (C)1995,JPO

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は、自動車のライト及び表示灯、特に自動照明を有する装置に好適な照明灯の制御回路に関する。 The present invention relates to a light and indicator lamp of the automobile, a control circuit of the preferred lamp particularly apparatus having an automatic illumination.

【0002】 [0002]

【従来の技術】従来の装置は、実開平4−106041 号公報のように光量が所定値付近を変化すると共に照明が点灯,消灯を繰り返し、又、所定値にヒステリシス幅を設けただけではヒステリシス幅を越える急激な光量変化が生じた場合に、照明灯が点灯,消灯を繰り返し視界の弊害となる。 Conventional devices, illumination lights with light intensity as a real Hei 4-106041 JP varies around the predetermined value, repeatedly off, also the hysteresis only provided a hysteresis width to a predetermined value when the sudden change in light amount exceeding the width occurs, lamp lights, repeating the harmful effects of the field of view to off.

【0003】 [0003]

【発明が解決しようとする課題】本発明の目的は、光量の急激な変化が生じても安定した照明を行うことのできる照明灯のアナログ制御回路を提供することを目的とする。 An object of the present invention is to provide a, and an object thereof is to provide an analog control circuit of the illumination lamp capable of performing illumination abrupt change in the amount of light is a stable even occurred.

【0004】 [0004]

【課題を解決するための手段】上記目的を達成するために、光センサの光量が所定値以上となった際、直ちに照明灯を消灯させず所定値にヒステリシスをもたせ、なお且つ所定値以上の光量が一定遅延時間続いた場合のみ消灯するようにする。 To achieve the above object, according to the solution to ## when the amount of light sensor is a predetermined value or more, immediately remembering hysteresis predetermined value without turning off the lamp, besides the predetermined value or more so as to turn off only when the light amount continues for a certain delay time. 但し、光センサの光量が所定値未満となった場合は、直ちに照明灯を点灯するようにした。 However, if the amount of light sensor is less than the predetermined value, and to immediately light the lamp.

【0005】 [0005]

【作用】本発明による照明灯の制御回路は、光センサ入力信号をヒステリシスをもたせた信号に変換し、なお且つその変換信号が、一定時間継続しないと照明灯が消灯しないよう作用するので、光センサの光量の急激な変化が生じても安定した照明を行うことができる。 [Action] The control circuit of the illumination lamp according to the present invention converts an optical sensor input signal to the signal remembering hysteresis, Note and the converted signal is, since the illumination lamp and not continued a predetermined time acts so as not to turn off the light abrupt changes in light intensity of the sensor can perform illumination is also a stable occurs.

【0006】 [0006]

【実施例】以下、本発明の実施例を図1,図3により説明する。 EXAMPLES Hereinafter, an embodiment of the present invention FIG. 1, the Figure 3.

【0007】図1は、本発明によるアナログ回路実施例をブロック図で示したもので、バッテリ電源1は、光センサ2を信号入力するヒステリシス付点灯/消灯判定回路4と照明灯7を点灯させるリレー6と電源回路3,遅延回路5に接続される。 [0007] Figure 1 is an analog circuit embodiment according to the present invention which was shown in the block diagram, the battery power source 1 lights the illumination lamp 7 and with hysteresis on / off judgment circuit 4 to the optical sensor 2 signal input relay 6 and the power supply circuit 3 is connected to a delay circuit 5.

【0008】電源回路3は、回路保護及び動作安定のための回路とする。 [0008] Power circuit 3, a circuit for circuit protection and operational stability. 照明灯7の点灯/消灯判断は、まず光センサ2の電流を電圧変換し、ヒステリシス付点灯/消灯判定回路4へ出力することにより行う。 ON / OFF judgment of the illumination lamp 7, first, the current of the light sensor 2 and voltage conversion performed by outputting the hysteresis with on / off judgment circuit 4. ヒステリシス付点灯/消灯判定回路4の入力電圧信号が所定電圧以上の際は、遅延回路5へOVを出力することで遅延時間なしでリレー6をONさせ、照明灯7を点灯させる。 When the input voltage signal with hysteresis on / off determination circuit 4 is equal to or higher than a predetermined voltage, it is turned ON a relay 6 with no delay time by outputting a OV to the delay circuit 5 to turn on the lamp 7. 又、 or,
ヒステリシス付点灯/消灯判定回路4の入力電圧信号が所定電圧未満の際は遅延回路5へ5Vを出力することでリレー6をOFFさせ、照明灯7は消灯する。 When the input voltage signal with hysteresis on / off determination circuit 4 is less than the predetermined voltage is OFF the relay 6 by outputting a 5V to the delay circuit 5, the illuminating lamp 7 is turned off. 但し、遅延回路5の入力電圧が5V以上を一定遅延時間以上継続した場合のみ、照明灯8を消灯させるものとする。 However, only when the input voltage of the delay circuit 5 continues a predetermined delay time or more than 5V, it is assumed to turn off the lamp 8. ここで、一定遅延時間は遅延回路5のコンデンサ容量を変化させることにより設定時間の変更を可能とすることができる。 Here, a constant delay time can be possible to change the set time by varying the capacitance of the delay circuit 5. ヒステリシス付点灯/消灯判定回路4の入力電圧と出力電圧の関係は図2参照。 Relationship between the input voltage and the output voltage of the hysteresis with on / off judgment circuit 4 shown in FIG. 2.

【0009】次に本発明による動作を図3のタイムチャートにより説明する。 [0009] The operation will next be described according to the invention by a time chart in FIG.

【0010】図3において、遅延回路入力電圧の波形を201,遅延時間td=0(S)の照明灯ON/OFF動作波形を202,遅延時間td=1(S)の照明灯ON/ [0010] In FIG. 3, the waveform of the delay circuit input voltage 201, the illumination lamp ON / OFF operation waveform 202 of the delay time td = 0 (S), the illumination lamp ON delay time td = 1 (S) /
OFF動作波形を203,遅延時間td=2(S)の照明灯ON/OFF動作波形を204,遅延時間td=3(S)の照明灯ON/OFF動作波形を205に示す。 The OFF operation waveform 203, the delay time td = 2 the lamp ON / OFF operation waveforms (S) 204, shown in lamp ON / OFF operation waveform 205 of the delay time td = 3 (S). 波形202において遅延時間td=0(S)の時は、遅延回路入力電圧が5V未満で即照明灯ON、5V以上で即照明灯OFF When the delay time td = 0 (S) in the waveform 202, immediately lamp ON delay circuit input voltage is less than 5V, immediately lamp OFF above 5V
する。 To. しかし、波形203の遅延時間td=1(S)の場合は、遅延回路入力電圧が5V未満で即照明灯ONするが、5V以上が遅延時間である1(S)経過しなければ照明灯はOFFとならない。 However, if the delay time td = 1 waveform 203 (S), the delay circuit input voltage immediately lamp ON Suruga less than 5V, the illumination lamp to be 1 (S) older than 5V is delay time It does not become OFF. この波形203を見てもわかる通り、遅延時間1(S)未満に遅延回路入力電圧が0V, As can be seen from this waveform 203, the delay circuit input voltage to less than the delay time 1 (S) is 0V,
5Vを繰り返しても照明灯はOFFしないようになっている。 Lighting even after repeated 5V is so as not to OFF. 波形204,波形205も遅延時間がそれぞれt Waveform 204, waveform 205 also delay times each t
d=2(S),td=3(S)となっただけで、波形203 d = 2 (S), only became td = 3 and (S), waveform 203
と同様な動作を行う。 It performs the same operation as.

【0011】 [0011]

【発明の効果】本発明によれば、光センサの急激な光量変化が生じても安定した照明をアナログ制御回路で行うことができる。 According to the present invention, the illumination sudden change in light amount of the light sensors which also stably occurs can be performed in the analog control circuit.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の構成を示すブロック図である。 1 is a block diagram showing the configuration of the present invention.

【図2】ヒステリシス付点灯/消灯判定回路4の入出力電圧の関係を示すグラフである。 2 is a graph showing the relationship between the input and output voltage dated hysteresis on / off judgment circuit 4.

【図3】本発明の動作を示すタイムチャート図である。 3 is a time chart showing the operation of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

2…光センサ、4…ヒステリシス付点灯/消灯判定回路、5…遅延回路、6…リレー、7…照明灯。 2 ... optical sensor, 4 ... with hysteresis on / off judgment circuit, 5 ... delay circuit, 6 ... relay, 7 ... lamp.

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】光センサが検出する光量が所定値以下となった場合に、照明灯を点灯させる照明灯の制御回路において、光センサの光量の急激な変化に対して照明灯が点灯,消灯を繰り返さないようにヒステリシス回路と遅延回路の二つの回路を備えたことを特徴とした照明灯の制御回路。 If 1. A quantity of light sensor detects is equal to or less than a predetermined value, the control circuit of the lamp for lighting the illumination lamp, the illumination lamp is turned against a sudden change in the amount of the light sensor, Off the control circuit of the illuminating lamp which is characterized by comprising two circuits of the hysteresis circuit and the delay circuit so as not to repeat.
JP25545493A 1993-10-13 1993-10-13 Control circuit for illuminating lamp Pending JPH07111193A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25545493A JPH07111193A (en) 1993-10-13 1993-10-13 Control circuit for illuminating lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25545493A JPH07111193A (en) 1993-10-13 1993-10-13 Control circuit for illuminating lamp

Publications (1)

Publication Number Publication Date
JPH07111193A true true JPH07111193A (en) 1995-04-25

Family

ID=17278998

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25545493A Pending JPH07111193A (en) 1993-10-13 1993-10-13 Control circuit for illuminating lamp

Country Status (1)

Country Link
JP (1) JPH07111193A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8378587B2 (en) 2008-04-24 2013-02-19 Zedel Lamp having self-regulated lighting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8378587B2 (en) 2008-04-24 2013-02-19 Zedel Lamp having self-regulated lighting

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