JPS61101490U - - Google Patents
Info
- Publication number
- JPS61101490U JPS61101490U JP18773984U JP18773984U JPS61101490U JP S61101490 U JPS61101490 U JP S61101490U JP 18773984 U JP18773984 U JP 18773984U JP 18773984 U JP18773984 U JP 18773984U JP S61101490 U JPS61101490 U JP S61101490U
- Authority
- JP
- Japan
- Prior art keywords
- connection points
- coil
- ground
- transistor
- opposing connection
- 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
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Motor And Converter Starters (AREA)
Description
第１図は本考案の逆起電力吸収回路を具備する
モータ駆動回路の回路図、第２図は従来の逆起電
力吸収回路を具備するモータ駆動回路の回路図で
ある。
Ｑ５，Ｑ６……逆起電力吸収用のｐｎｐトラン
ジスタ。
FIG. 1 is a circuit diagram of a motor drive circuit equipped with a back electromotive force absorption circuit according to the present invention, and FIG. 2 is a circuit diagram of a motor drive circuit equipped with a conventional back electromotive force absorption circuit. Q5, Q6...PNP transistors for absorbing back electromotive force.
Claims (1)
回路の４個の接続点の内の相対向する接続点を電
源と接地に接続し、残る相対向する接続点間にコ
イルを接続した回路において、 該コイルの各端子と接地間に、ｐｎｐ形のトラ
ンジスタを各々接続し、且つ該各トランジスタの
ベースを電源に接続して構成したことを特徴とす
る逆起電力吸収回路。[Claims for Utility Model Registration] Of the four connection points of a bridge circuit composed of four switching elements, opposing connection points are connected to the power supply and ground, and a coil is connected between the remaining opposing connection points. 1. A back electromotive force absorption circuit, characterized in that a pnp type transistor is connected between each terminal of the coil and ground, and the base of each transistor is connected to a power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18773984U JPS61101490U (en) | 1984-12-11 | 1984-12-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18773984U JPS61101490U (en) | 1984-12-11 | 1984-12-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61101490U true JPS61101490U (en) | 1986-06-28 |
Family
ID=30745201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18773984U Pending JPS61101490U (en) | 1984-12-11 | 1984-12-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61101490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009136037A (en) * | 2007-11-28 | 2009-06-18 | Sanyo Electric Co Ltd | Motor drive circuit, fan motor, electronic apparatus and notebook personal computer |
-
1984
- 1984-12-11 JP JP18773984U patent/JPS61101490U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009136037A (en) * | 2007-11-28 | 2009-06-18 | Sanyo Electric Co Ltd | Motor drive circuit, fan motor, electronic apparatus and notebook personal computer |