JPS58167473U - Tachometer voltage control circuit - Google Patents
Tachometer voltage control circuitInfo
- Publication number
- JPS58167473U JPS58167473U JP6423282U JP6423282U JPS58167473U JP S58167473 U JPS58167473 U JP S58167473U JP 6423282 U JP6423282 U JP 6423282U JP 6423282 U JP6423282 U JP 6423282U JP S58167473 U JPS58167473 U JP S58167473U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- tachometer
- series
- control circuit
- voltage control
- 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
- Arrangements For Transmission Of Measured Signals (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (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図は無接点式開閉器、エンジン冷却用電動ファン搭
載した車輛における従来のタコメータ回路の接続状態を
示す電気結線図、第２図は同結線状態におけるキースイ
ッチオフに伴うタコメータ回路の電圧波形図、第３図は
本考案に係る電圧制御回路の一実施例を示す電気結線図
、第４図は同回路を付加したキースイッチオフに伴うタ
コメータ回路の電圧波形図である。
１１・・・・・・タコメータ回路、１３・・・・・・電
圧検知回路、１４・・・・・・ツェナーダイオード、１
５，１６゜１７・・・・・・電流制限抵抗、１８・・・
・・・トランジスタ回路、４・・・・・・無接点式開閉
器、６・・・・・・エンジン冷却用電動ファン、２・・
・・・・キースイッチ。
６０Figure 1 is an electrical wiring diagram showing the connection state of a conventional tachometer circuit in a vehicle equipped with a non-contact switch and an electric fan for engine cooling. Figure 2 is the voltage waveform of the tachometer circuit when the key switch is turned off in the same connection state. 3 are electrical wiring diagrams showing one embodiment of the voltage control circuit according to the present invention, and FIG. 4 is a voltage waveform diagram of a tachometer circuit when the key switch is turned off to which the same circuit is added. 11... Tachometer circuit, 13... Voltage detection circuit, 14... Zener diode, 1
5,16゜17...Current limiting resistor, 18...
... Transistor circuit, 4... Non-contact switch, 6... Electric fan for engine cooling, 2...
...Key switch. 60
Claims (1)
イッチングトランジスタを用いた無接点式の開閉器を備
え、かつエンジン冷却用電動ファンをキースイッチの負
側端子に接続した車輌に装備されるタコメータへの電圧
供給回路であって、キースイッチの負側端子にツェナー
ダイオードと電流制限抵抗を直列接続するとともに、タ
コメータ回路への電圧供給経路を開閉するトランジスタ
回路を接続し、上記ツェナーダイオードを含む抵抗直列
回路の任意電圧端子にトランジスタ回路の制御端子を接
続してなるタコメータの電圧制御回路。Voltage supply to a tachometer installed in a vehicle equipped with a non-contact switch using a switching transistor that interrupts current to the engine's ignition coil, and an electric fan for engine cooling connected to the negative terminal of the key switch. A circuit in which a Zener diode and a current limiting resistor are connected in series to the negative terminal of a key switch, and a transistor circuit for opening and closing the voltage supply path to the tachometer circuit is connected, and any resistor series circuit including the Zener diode is connected in series. A tachometer voltage control circuit that connects the voltage terminal to the control terminal of a transistor circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6423282U JPS58167473U (en) | 1982-04-30 | 1982-04-30 | Tachometer voltage control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6423282U JPS58167473U (en) | 1982-04-30 | 1982-04-30 | Tachometer voltage control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58167473U true JPS58167473U (en) | 1983-11-08 |
| JPS6146459Y2 JPS6146459Y2 (en) | 1986-12-27 |
Family
ID=30074273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6423282U Granted JPS58167473U (en) | 1982-04-30 | 1982-04-30 | Tachometer voltage control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58167473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58193259U (en) * | 1982-06-18 | 1983-12-22 | 本田技研工業株式会社 | Electric tachometer power supply circuit |
-
1982
- 1982-04-30 JP JP6423282U patent/JPS58167473U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58193259U (en) * | 1982-06-18 | 1983-12-22 | 本田技研工業株式会社 | Electric tachometer power supply circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6146459Y2 (en) | 1986-12-27 |
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