JPH02139499U - - Google Patents
Info
- Publication number
- JPH02139499U JPH02139499U JP1989047863U JP4786389U JPH02139499U JP H02139499 U JPH02139499 U JP H02139499U JP 1989047863 U JP1989047863 U JP 1989047863U JP 4786389 U JP4786389 U JP 4786389U JP H02139499 U JPH02139499 U JP H02139499U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- current detection
- switching element
- switching elements
- detection circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Direct Current Motors (AREA)
Description
第１図は本考案の一実施例の回路図、第２図は
本考案の他の実施例の回路図、第３図はモータ駆
動回路の回路図、第４図は従来の一例の回路図、
第５図，第６図は従来の一例の動作を説明するた
めの図である。
１…モータ、２…第１の電流検出手段、３…第
２の電流検出手段、ＳＷ１〜ＳＷ４…スイツチン
グ素子、Ｒ１，Ｒ２…フライホイールダイオード
。
Figure 1 is a circuit diagram of one embodiment of the present invention, Figure 2 is a circuit diagram of another embodiment of the invention, Figure 3 is a circuit diagram of a motor drive circuit, and Figure 4 is a circuit diagram of a conventional example. ,
5 and 6 are diagrams for explaining the operation of a conventional example. DESCRIPTION OF SYMBOLS 1...Motor, 2...1st current detection means, 3...2nd current detection means, SW1 - SW4 ...Switching element, R1, R2...Flywheel diode.
Claims (1)
ジ回路の各辺に配置され、該第１及び第３のスイ
ツチング素子の接続点と該第２及び第４のスイツ
チング素子の接続点との間にモータが接続され、
該第１〜第４のスイツチング素子により該モータ
の回転方向を制御するモータ駆動回路の電流検出
回路において、 前記第１のスイツチング素子に接続され、前記
第１のスイツチング素子がオンのときに前記モー
タに流れる検出する第１の電流検出手段と、前記
第２のスイツチング素子に接続され、前記第２の
スイツチング素子がオンのときに前記モータに流
れる電流を検出する第２の電流検出手段とを具備
してなる電流検出回路。[Claims for Utility Model Registration] First to fourth switching elements are arranged on each side of a four-sided bridge circuit, and a connection point between the first and third switching elements and the second and fourth switching elements are arranged on each side of a four-side bridge circuit. The motor is connected between the connection point of
In a current detection circuit of a motor drive circuit that controls the rotational direction of the motor by the first to fourth switching elements, the current detection circuit is connected to the first switching element and detects the current of the motor when the first switching element is on. and a second current detection means connected to the second switching element to detect the current flowing to the motor when the second switching element is on. A current detection circuit made of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989047863U JPH02139499U (en) | 1989-04-24 | 1989-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989047863U JPH02139499U (en) | 1989-04-24 | 1989-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02139499U true JPH02139499U (en) | 1990-11-21 |
Family
ID=31564170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989047863U Pending JPH02139499U (en) | 1989-04-24 | 1989-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02139499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07177932A (en) * | 1993-12-22 | 1995-07-18 | Matsushita Electric Works Ltd | Motor-driven toothbrush |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106089A (en) * | 1984-10-29 | 1986-05-24 | Seiko Instr & Electronics Ltd | Drive circuit for dc motor |
-
1989
- 1989-04-24 JP JP1989047863U patent/JPH02139499U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106089A (en) * | 1984-10-29 | 1986-05-24 | Seiko Instr & Electronics Ltd | Drive circuit for dc motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07177932A (en) * | 1993-12-22 | 1995-07-18 | Matsushita Electric Works Ltd | Motor-driven toothbrush |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH02139499U (en) | ||
| JPH02139498U (en) | ||
| JPH0392542U (en) | ||
| JPS617299U (en) | Pulse motor drive device | |
| JPS62152274U (en) | ||
| JPH0197266U (en) | ||
| JPS6161721U (en) | ||
| JPS6162596U (en) | ||
| JPH0426858U (en) | ||
| JPS58100490U (en) | Motor control circuit | |
| JPS5823972U (en) | power window device | |
| JPH0227501U (en) | ||
| JPS6244693U (en) | ||
| JPS6146529U (en) | Auto iris circuit | |
| JPS6329394U (en) | ||
| JPH02127578U (en) | ||
| JPS6374097U (en) | ||
| JPS6183760U (en) | ||
| JPH03113262U (en) | ||
| JPH0434620U (en) | ||
| JPH0321999U (en) | ||
| JPH0249398U (en) | ||
| JPS6073397U (en) | Control circuit for shunt field type DC motor | |
| JPS6360217U (en) | ||
| JPS61117596U (en) |