JPS61140973U - - Google Patents
Info
- Publication number
- JPS61140973U JPS61140973U JP2442285U JP2442285U JPS61140973U JP S61140973 U JPS61140973 U JP S61140973U JP 2442285 U JP2442285 U JP 2442285U JP 2442285 U JP2442285 U JP 2442285U JP S61140973 U JPS61140973 U JP S61140973U
- Authority
- JP
- Japan
- Prior art keywords
- ammeter
- shunt
- detection circuit
- comparison
- output signal
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Description
第１図は本考案の一実施例ブロツク構成図。第
２図は上記実施例における分流電流と電流計のス
ケールとの関係図。第３図は上記実施例の電流計
の模式図。第４図は上記実施例の切替え特性図。
第５図は本考案の他の実施例の要部ブロツク構成
図。
１……バツテリ、２……オルタネータ、３……
負荷、４……分流器、５……電流計、５―１……
コイル、５―２……指針、５ａ，５ｂ，５ｃ……
表示灯、６……比較検出回路、７……抵抗切替え
回路、７―１……スイツチ、７―２……スイツチ
転換器、８……コントロールユニツト、１１〜１
４……端子、１５ａ，１５ｂ，１５ｃ……比較検
出回路の出力信号、ａ，ｂ，ｃ……接点、Ｒ１，
Ｒ２……分路抵抗。
FIG. 1 is a block diagram of an embodiment of the present invention. FIG. 2 is a diagram showing the relationship between the shunt current and the scale of the ammeter in the above embodiment. FIG. 3 is a schematic diagram of the ammeter of the above embodiment. FIG. 4 is a switching characteristic diagram of the above embodiment.
FIG. 5 is a block diagram of main parts of another embodiment of the present invention. 1...Battery, 2...Alternator, 3...
Load, 4... Shunt, 5... Ammeter, 5-1...
Coil, 5-2... Pointer, 5a, 5b, 5c...
Indicator light, 6...Comparison detection circuit, 7...Resistance switching circuit, 7-1...Switch, 7-2...Switch converter, 8...Control unit, 11-1
4...terminal, 15a, 15b, 15c...output signal of comparison detection circuit, a, b, c...contact, R1 ,
R2 ...Shunt resistance.
Claims (1)
、 この分流器の分流電流を表示する電流計と を備えた自動車用電流計において、 上記電流計を通過する電流値をあらかじめ設定
された基準電流値と比較する比較検出回路と、 この比較検出回路の出力信号によつて上記電流
計のレンジ切替えを行う切替え回路と、 を設けたことを特徴とする自動車用電流計。 (2) 比較検出回路の出力信号によつて点滅する
表示手段を含む実用新案登録請求の範囲第(1)項
に記載の自動車用電流計。[Scope of Claim for Utility Model Registration] (1) In an automotive ammeter comprising a shunt through which the charging/discharging current of a battery passes, and an ammeter that displays the shunt current of this shunt, A vehicle for use in an automobile, comprising: a comparison detection circuit that compares the current value with a preset reference current value; and a switching circuit that switches the range of the ammeter based on the output signal of the comparison detection circuit. Ammeter. (2) The automotive ammeter according to claim (1) of the utility model registration claim, which includes a display means that blinks in response to the output signal of the comparison and detection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2442285U JPS61140973U (en) | 1985-02-22 | 1985-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2442285U JPS61140973U (en) | 1985-02-22 | 1985-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61140973U true JPS61140973U (en) | 1986-09-01 |
Family
ID=30518558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2442285U Pending JPS61140973U (en) | 1985-02-22 | 1985-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61140973U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4514775Y1 (en) * | 1967-02-16 | 1970-06-22 |
-
1985
- 1985-02-22 JP JP2442285U patent/JPS61140973U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4514775Y1 (en) * | 1967-02-16 | 1970-06-22 |
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