JPS5863568U - Automotive electronic meter - Google Patents
Automotive electronic meterInfo
- Publication number
- JPS5863568U JPS5863568U JP15804081U JP15804081U JPS5863568U JP S5863568 U JPS5863568 U JP S5863568U JP 15804081 U JP15804081 U JP 15804081U JP 15804081 U JP15804081 U JP 15804081U JP S5863568 U JPS5863568 U JP S5863568U
- Authority
- JP
- Japan
- Prior art keywords
- drive circuit
- circuit
- display drive
- electronic meter
- turned
- 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
Links
Landscapes
- Indicating Measured Values (AREA)
- Measurement Of Current Or Voltage (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はリセット回路を有するマイクロコンピュータを
組込んだ自動車用電子メータの要部説明図、第２図は本
考案の一実施例を示す自動車用電子メー、夕の回路図、
第３図は第２図の電子メータ −の電源、イニシ
ャルリセット回路及び全点灯回路゛のタイミング図であ
る。
１１・・・・・・電子メータ、１２・・・・・・イグニ
ッションスイッチ、１３・・・・・・バッテリ、１４・
・・・・・表示フントローラ、１５・・・・・・安定化
電源、１６・・・・・・マイクロコンピュータ、１７・
・・・・・表示用駆動回路、１８・・・・・・液晶表示
部、１９・・・・・・イニシャルリセット回路、２０・
・・・・・全点灯回路。Fig. 1 is an explanatory diagram of the main parts of an automobile electronic meter incorporating a microcomputer with a reset circuit, and Fig. 2 is a circuit diagram of an automobile electronic meter showing an embodiment of the present invention.
FIG. 3 is a timing diagram of the power supply, initial reset circuit, and full lighting circuit of the electronic meter shown in FIG. 11...Electronic meter, 12...Ignition switch, 13...Battery, 14...
... Display controller, 15 ... Stabilized power supply, 16 ... Microcomputer, 17.
... Display drive circuit, 18 ... Liquid crystal display section, 19 ... Initial reset circuit, 20.
...Full lighting circuit.
Claims (1)
るマイクロコンピュータと、このコンピュータからの出
力信号が入力される表示用駆動回路と、この駆動回路か
らの出力信号によりデジタル表示する表示部と、前記電
源がオンする時の不安定な間に前記マイクロコンピュー
タを強制的にアースに落とすイニシャルリセット回路と
を具備した自動車用電子メータにおいて、前記表示用駆
動回路に前記イニシャルリセット回路が少なくともオン
している間にオン動作する全点灯回路を接続し、エンジ
ン始動時に該全点灯回路からの表示用駆動回路への出力
信号により前記表示部を全点灯させるようにしたことを
特徴とする自動車用電子メータ。When the ignition switch is turned on, there is a microcomputer to which power is supplied, a display drive circuit to which output signals from the computer are input, a display section that displays digitally based on the output signals from this drive circuit, and An electronic meter for automobiles is equipped with an initial reset circuit that forcibly grounds the microcomputer during an unstable period when the display drive circuit is turned on, and the display drive circuit is provided with an initial reset circuit that forcibly grounds the microcomputer during an unstable period when the display drive circuit is turned on. 1. An electronic meter for an automobile, characterized in that a full lighting circuit that operates on is connected, and the display section is fully lit by an output signal from the full lighting circuit to a display drive circuit when the engine is started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15804081U JPS5863568U (en) | 1981-10-23 | 1981-10-23 | Automotive electronic meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15804081U JPS5863568U (en) | 1981-10-23 | 1981-10-23 | Automotive electronic meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5863568U true JPS5863568U (en) | 1983-04-28 |
| JPH0317263Y2 JPH0317263Y2 (en) | 1991-04-11 |
Family
ID=29950543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15804081U Granted JPS5863568U (en) | 1981-10-23 | 1981-10-23 | Automotive electronic meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5863568U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557935A (en) * | 1978-10-25 | 1980-04-30 | Hitachi Ltd | Display unit |
| JPS5646421A (en) * | 1979-09-25 | 1981-04-27 | Nissan Motor Co Ltd | Display control circuit of electronic meter for automobile |
-
1981
- 1981-10-23 JP JP15804081U patent/JPS5863568U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557935A (en) * | 1978-10-25 | 1980-04-30 | Hitachi Ltd | Display unit |
| JPS5646421A (en) * | 1979-09-25 | 1981-04-27 | Nissan Motor Co Ltd | Display control circuit of electronic meter for automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0317263Y2 (en) | 1991-04-11 |
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