JPH02139498U - - Google Patents
Info
- Publication number
- JPH02139498U JPH02139498U JP1989047862U JP4786289U JPH02139498U JP H02139498 U JPH02139498 U JP H02139498U JP 1989047862 U JP1989047862 U JP 1989047862U JP 4786289 U JP4786289 U JP 4786289U JP H02139498 U JPH02139498 U JP H02139498U
- Authority
- JP
- Japan
- Prior art keywords
- switching elements
- switching
- current
- switching element
- motor
- 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 3
- 238000001514 detection method Methods 0.000 description 2
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
従来の一例の回路図、第３図は従来の他の一例の
回路図である。
１…モータ、２…第１の電流検出手段、３…第
２の電流検出手段、４…第１の整流素子、５…第
２の整流素子。
FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a circuit diagram of a conventional example, and FIG. 3 is a circuit diagram of another conventional example. DESCRIPTION OF SYMBOLS 1... Motor, 2... First current detection means, 3... Second current detection means, 4... First rectifying element, 5... Second rectifying element.
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及び第４のスイツチング素子を夫々オンと
するか又は該第２及び第３のスイツチング素子を
夫々オンすることにより該モータの回転方向を制
御するモータ駆動回路において、 前記第１のスイツチング素子のオン時の電流と
は逆方向の電流を阻止する前記第１のスイツチン
グ素子に流れる第１の整流素子と、 前記第２のスイツチング素子に流れる前記第２
のスイツチング素子とのオン時の電流とは逆方向
の電流を阻止する第２の整流素子とを具備してな
るモータ駆動回路。[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 motor drive circuit that controls the rotational direction of the motor by turning on each of the first and fourth switching elements or turning on each of the second and third switching elements, the first switching element a first rectifying element that blocks current flowing in the first switching element in a direction opposite to the current when the switching element is turned on;
A motor drive circuit comprising a switching element and a second rectifying element that blocks a current in a direction opposite to the current when the switching element is turned on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989047862U JPH02139498U (en) | 1989-04-24 | 1989-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989047862U JPH02139498U (en) | 1989-04-24 | 1989-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02139498U true JPH02139498U (en) | 1990-11-21 |
Family
ID=31564168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989047862U Pending JPH02139498U (en) | 1989-04-24 | 1989-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02139498U (en) |
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 JP1989047862U patent/JPH02139498U/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 |
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