JPH0217936U - - Google Patents
Info
- Publication number
- JPH0217936U JPH0217936U JP9447688U JP9447688U JPH0217936U JP H0217936 U JPH0217936 U JP H0217936U JP 9447688 U JP9447688 U JP 9447688U JP 9447688 U JP9447688 U JP 9447688U JP H0217936 U JPH0217936 U JP H0217936U
- Authority
- JP
- Japan
- Prior art keywords
- drive circuit
- solenoid
- power supply
- power source
- power
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 1
Landscapes
- Power Steering Mechanism (AREA)
- Electronic Switches (AREA)
Description
第１図はこの考案に係る駆動回路の保護装置を
備えた電動パワーステアリング装置の電気回路図
である。第２図は別の実施例を示す第１図と同様
の図である。
尚、図面中、１はバツテリ、１ａは正端子、１
ｂはアース端子、５は駆動ユニツト、１３はスイ
ツチ回路、１４はＦＥＴ駆動回路、１５はリレー
回路、１６は常開接点、１７はソレノイド、１８
は電磁リレー、１９はダイオード、Ｑ１，Ｑ２，
Ｑ３，Ｑ４は電界効果型トランジスタ、ｄ１，ｄ
２，ｄ３，ｄ４はダイオードである。
FIG. 1 is an electrical circuit diagram of an electric power steering device equipped with a drive circuit protection device according to this invention. FIG. 2 is a diagram similar to FIG. 1 showing another embodiment. In addition, in the drawing, 1 is a battery, 1a is a positive terminal, 1
b is the ground terminal, 5 is the drive unit, 13 is the switch circuit, 14 is the FET drive circuit, 15 is the relay circuit, 16 is the normally open contact, 17 is the solenoid, 18
is an electromagnetic relay, 19 is a diode, Q1, Q2,
Q3, Q4 are field effect transistors, d1, d
2, d3, and d4 are diodes.
Claims (1)
ング素子により構成されるスイツチ回路を備えた
駆動回路と、 該駆動回路に給電する直流電源と、 該直流電源と前記駆動回路との間に介設された
リレー接点と、 前記直流電源に接続され、通電時に前記リレー
接点を閉成するソレノイドと、 該ソレノイドに直列接続され、かつ前記直流電
源に順方向に接続されたダイオードと、 を備えることを特徴とする駆動回路の保護装置
。[Claims for Utility Model Registration] A drive circuit including a switching circuit constituted by a switching element in which diodes are connected in parallel with opposite polarities, a DC power supply that supplies power to the drive circuit, and the DC power supply and the drive circuit. a solenoid connected to the DC power source and closing the relay contact when energized; and a diode connected in series to the solenoid and connected in the forward direction to the DC power source. A protection device for a drive circuit, comprising: .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9447688U JPH0217936U (en) | 1988-07-15 | 1988-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9447688U JPH0217936U (en) | 1988-07-15 | 1988-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0217936U true JPH0217936U (en) | 1990-02-06 |
Family
ID=31319005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9447688U Pending JPH0217936U (en) | 1988-07-15 | 1988-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0217936U (en) |
-
1988
- 1988-07-15 JP JP9447688U patent/JPH0217936U/ja active Pending