JPS6198344U - - Google Patents
Info
- Publication number
- JPS6198344U JPS6198344U JP18249284U JP18249284U JPS6198344U JP S6198344 U JPS6198344 U JP S6198344U JP 18249284 U JP18249284 U JP 18249284U JP 18249284 U JP18249284 U JP 18249284U JP S6198344 U JPS6198344 U JP S6198344U
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- battery
- equipment
- constant voltage
- voltage element
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Protection Of Static Devices (AREA)
- Control Of Charge By Means Of Generators (AREA)
- Emergency Protection Circuit Devices (AREA)
- Stand-By Power Supply Arrangements (AREA)
Description
第１図及び第２図は本考案の一実施例を示すも
ので、第１図は過電圧保護回路の接続位置を示す
構成図で第２図はその過電圧保護回路の回路図、
第３図は従来例を示す回路図である。
１……バツテリー、２……計器、３……発電機
、４……整流器、１１，１４，１６……トランジ
スタ、１２……ツエナーダイオード、１３，１５
，１７，１８……抵抗、１９……コンデンサ。
1 and 2 show an embodiment of the present invention, FIG. 1 is a configuration diagram showing the connection position of an overvoltage protection circuit, and FIG. 2 is a circuit diagram of the overvoltage protection circuit.
FIG. 3 is a circuit diagram showing a conventional example. 1... Battery, 2... Instrument, 3... Generator, 4... Rectifier, 11, 14, 16... Transistor, 12... Zener diode, 13, 15
, 17, 18...Resistor, 19...Capacitor.
Claims (1)
して接続し、このバツテリーを計器等の機器の電
圧供給源としたものにおいて、上記バツテリー正
端子にはＰＮＰ型トランジスタのエミツタ並びに
定電圧素子を接続し、この定電圧素子には過電圧
印加時に上記トランジスタをＯＦＦさせるトラン
ジスタ回路を接続し、かつ上記トランジスタのコ
レクタにはコンデンサを接続するとともに上記計
器等の機器に接続したことを特徴とする過電圧保
護回路。 A battery as a power source is connected to a generator via a rectifier, and this battery is used as a voltage supply source for equipment such as meters, and the emitter of a PNP transistor and a constant voltage element are connected to the positive terminal of the battery, An overvoltage protection circuit characterized in that a transistor circuit that turns off the transistor when an overvoltage is applied is connected to the constant voltage element, and a capacitor is connected to the collector of the transistor, which is also connected to equipment such as the meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18249284U JPS6198344U (en) | 1984-11-30 | 1984-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18249284U JPS6198344U (en) | 1984-11-30 | 1984-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6198344U true JPS6198344U (en) | 1986-06-24 |
Family
ID=30740026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18249284U Pending JPS6198344U (en) | 1984-11-30 | 1984-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6198344U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644339A (en) * | 1979-09-17 | 1981-04-23 | Komatsu Mfg Co Ltd | Power source for vehicle control circuit |
| JPS5844413U (en) * | 1981-09-10 | 1983-03-25 | トヨタ自動車株式会社 | Blow-by gas reduction device in internal combustion engine |
-
1984
- 1984-11-30 JP JP18249284U patent/JPS6198344U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5644339A (en) * | 1979-09-17 | 1981-04-23 | Komatsu Mfg Co Ltd | Power source for vehicle control circuit |
| JPS5844413U (en) * | 1981-09-10 | 1983-03-25 | トヨタ自動車株式会社 | Blow-by gas reduction device in internal combustion engine |
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