JPS5815555U - room lamp timer - Google Patents
room lamp timerInfo
- Publication number
- JPS5815555U JPS5815555U JP10968281U JP10968281U JPS5815555U JP S5815555 U JPS5815555 U JP S5815555U JP 10968281 U JP10968281 U JP 10968281U JP 10968281 U JP10968281 U JP 10968281U JP S5815555 U JPS5815555 U JP S5815555U
- Authority
- JP
- Japan
- Prior art keywords
- turned
- room lamp
- time
- door switch
- 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.)
- Pending
Links
Landscapes
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来のルームランプタイマの一例を示す回路図
、第２図は本考案に係るルーｌ、ランプタイマの一実施
例を示す回路図、第３図は第２図の動作を説明するため
のタイムチャー１・である。
尚図中同一符号は同一または均等部分を示す。
１・・・ドアスイッチ、３・・・時限回路、４・・・制
御回路、５・・・基準電圧発生回路、６・・・第１のス
イッチング回路、８・・・発振回路、９・・・比較回路
、１０・・・第２のスイッチング回路、１２・・・ルー
ムランプ、１３・・・電源。Fig. 1 is a circuit diagram showing an example of a conventional room lamp timer, Fig. 2 is a circuit diagram showing an embodiment of the rule lamp timer according to the present invention, and Fig. 3 explains the operation of Fig. 2. The time chart for this is 1. Note that the same reference numerals in the drawings indicate the same or equivalent parts. DESCRIPTION OF SYMBOLS 1... Door switch, 3... Time limit circuit, 4... Control circuit, 5... Reference voltage generation circuit, 6... First switching circuit, 8... Oscillation circuit, 9... - Comparison circuit, 10... Second switching circuit, 12... Room lamp, 13... Power supply.
Claims (1)
ＯＮによりルームランプを点灯し、ドアスイッチＯＦＦ
後ルームランプを徐々に減光させ所定時間経過後に消灯
させるルームランプタイムにおいて、前記ドアスイッチ
がＯＮ状態のとき瞬時に一定の出力を発生ずるとともに
ドアスイッチＯＦＦ後この出力が徐々に変化し一定時間
経過後に復帰する時限回路と、ドアスイッチがＯＮ状態
のとき電源から電圧が供給され前記時限回路の出力電圧
と基準電圧発生回路の出力電圧の大小関係を判別して出
力信号を発生するとともに、ドアスイッチＯＦＦ後所定
時間の経過により前記両出力電圧の大小関係が逆転する
と出力信号の発生を停止する制御回路と、この制御回路
が出力信号を発生している間は該出力信号によりＯＮし
電源からの電圧を前記制御回路に供給し続ける第１のス
イッチング回路と、この第１のスイッチング回路ヲ介し
て電源に接続した三角波形の出力電圧を発生する発振回
路及び前記時限回路と発振回路の両出力電圧を比較して
これに応じた幅のパルス信号を出力する比較回路と、こ
のパルス信号に応じてＯＮ、ＯＦＦしルームランプの点
灯を制御する第２のスイッチング回路とを具備したこと
を特徴とするルームランプタイマ。When the door switch is turned on and off in conjunction with the opening and closing of the door, the room lamp is turned on and the door switch is turned off.
During room lamp time, in which the rear room lamp is gradually dimmed and turned off after a predetermined period of time, a constant output is instantaneously generated when the door switch is on, and after the door switch is turned off, this output gradually changes for a certain period of time. A timer circuit that returns after a period of time has elapsed, and a voltage is supplied from the power supply when the door switch is in the ON state. A control circuit that stops generating an output signal when the magnitude relationship between the two output voltages is reversed after a predetermined period of time has passed after the switch is turned off; a first switching circuit that continuously supplies a voltage of A comparison circuit that compares the voltages and outputs a pulse signal with a corresponding width, and a second switching circuit that turns ON and OFF in response to this pulse signal to control lighting of the room lamp. room lamp timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10968281U JPS5815555U (en) | 1981-07-23 | 1981-07-23 | room lamp timer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10968281U JPS5815555U (en) | 1981-07-23 | 1981-07-23 | room lamp timer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5815555U true JPS5815555U (en) | 1983-01-31 |
Family
ID=29904057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10968281U Pending JPS5815555U (en) | 1981-07-23 | 1981-07-23 | room lamp timer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5815555U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4942640B1 (en) * | 1970-12-29 | 1974-11-15 |
-
1981
- 1981-07-23 JP JP10968281U patent/JPS5815555U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4942640B1 (en) * | 1970-12-29 | 1974-11-15 |
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