JPS61120920U - - Google Patents
Info
- Publication number
- JPS61120920U JPS61120920U JP125085U JP125085U JPS61120920U JP S61120920 U JPS61120920 U JP S61120920U JP 125085 U JP125085 U JP 125085U JP 125085 U JP125085 U JP 125085U JP S61120920 U JPS61120920 U JP S61120920U
- Authority
- JP
- Japan
- Prior art keywords
- current
- control
- base
- ignition switch
- supplies
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Control Of Electrical Variables (AREA)
Description
第１図は本考案に係る車載用コントロールユニ
ツトの一般的な構成を示す説明図、第２図はパワ
ーシートの各部の動きの説明図、第３図は本考案
を適用したパワーシートの制御回路図である。
１……コントロール部、２……制御トランジス
タ、３……スイツチ回路、４……ツエナーダイオ
ード、Ｒ１……電流制限抵抗、Ｒ２……直列抵抗
、Ｂ……バツテリ。
Fig. 1 is an explanatory diagram showing the general configuration of the in-vehicle control unit according to the present invention, Fig. 2 is an explanatory diagram of the movement of each part of the power seat, and Fig. 3 is a control circuit of the power seat to which the present invention is applied. It is a diagram. DESCRIPTION OF SYMBOLS 1...Control part, 2...Control transistor, 3...Switch circuit, 4...Zener diode, R1 ...Current limiting resistor, R2 ...Series resistance, B...Battery.
Claims (1)
トロール部に動作電流を供給し、イグニツシヨン
スイツチがオフのときにはコントロール部にメモ
リバツクアツプ用の微小電流を供給するようにし
た車載用コントロールユニツトの定電圧回路であ
つて、車載のバツテリから上記コントロール部に
供給される電流を流す制御トランジスタと、この
制御トランジスタのベース電圧を一定にするツエ
ナーダイオードと、制御トランジスタのベースに
供給される電流を制限する電流制限抵抗と、イグ
ニツシヨンスイツチのオンにより制御トランジス
タのベースに電流を供給するスイツチ回路とを備
えたことを特徴とする車載用コントロールユニツ
トの定電圧回路。 A constant voltage circuit for an automotive control unit that supplies operating current to the control section when the ignition switch is on, and supplies a small current for memory backup to the control section when the ignition switch is off. A control transistor that allows current to be supplied from the on-board battery to the control section, a Zener diode that keeps the base voltage of this control transistor constant, and a current limiting resistor that limits the current that is supplied to the base of the control transistor. 1. A constant voltage circuit for an automotive control unit, comprising: and a switch circuit that supplies current to the base of a control transistor when an ignition switch is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985001250U JPH0620175Y2 (en) | 1985-01-08 | 1985-01-08 | In-vehicle control unit constant voltage circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985001250U JPH0620175Y2 (en) | 1985-01-08 | 1985-01-08 | In-vehicle control unit constant voltage circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61120920U true JPS61120920U (en) | 1986-07-30 |
| JPH0620175Y2 JPH0620175Y2 (en) | 1994-05-25 |
Family
ID=30473824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985001250U Expired - Lifetime JPH0620175Y2 (en) | 1985-01-08 | 1985-01-08 | In-vehicle control unit constant voltage circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620175Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557200U (en) * | 1978-10-14 | 1980-04-18 | ||
| JPS5949350A (en) * | 1982-09-13 | 1984-03-21 | Nippon Denso Co Ltd | Contents protection method for backup memory of car controlling computer |
-
1985
- 1985-01-08 JP JP1985001250U patent/JPH0620175Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5557200U (en) * | 1978-10-14 | 1980-04-18 | ||
| JPS5949350A (en) * | 1982-09-13 | 1984-03-21 | Nippon Denso Co Ltd | Contents protection method for backup memory of car controlling computer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0620175Y2 (en) | 1994-05-25 |