JPH0425496U - - Google Patents
Info
- Publication number
- JPH0425496U JPH0425496U JP6592890U JP6592890U JPH0425496U JP H0425496 U JPH0425496 U JP H0425496U JP 6592890 U JP6592890 U JP 6592890U JP 6592890 U JP6592890 U JP 6592890U JP H0425496 U JPH0425496 U JP H0425496U
- Authority
- JP
- Japan
- Prior art keywords
- motor
- switch means
- terminal
- reverse rotation
- thermistor
- 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
Landscapes
- Stopping Of Electric Motors (AREA)
- Control Of Direct Current Motors (AREA)
Description
第１図は、本考案に基づくモータ用正逆転駆動
回路を示す概略図である。
１……正逆転駆動回路、２……直流モータ、２
ａ，２ｂ……端子、３……電源、３ａ……正側端
子、３ｂ……負側端子、４，５……スイツチ、４
ａ，５ａ……常時閉接点、４ｂ，５ｂ……常時開
接点、４ｃ，５ｃ……コモン端子、６……正転用
ダイオード、７……サーミスタ、８……逆転用ダ
イオード、９……サーミスタ。
FIG. 1 is a schematic diagram showing a forward/reverse rotation drive circuit for a motor based on the present invention. 1... Forward/reverse drive circuit, 2... DC motor, 2
a, 2b... terminal, 3... power supply, 3a... positive side terminal, 3b... negative side terminal, 4, 5... switch, 4
a, 5a... normally closed contact, 4b, 5b... normally open contact, 4c, 5c... common terminal, 6... diode for forward rotation, 7... thermistor, 8... diode for reverse rotation, 9... thermistor.
Claims (1)
電源端子に選択的に切換えて接続するための正逆
転用スイツチ手段と、前記モータの一方の端子と
前記スイツチ手段との間にて互いに並列に設けら
れた過電流防止用の１対の正特性サーミスタと、
前記モータに正転側電流を流すべく前記一方のサ
ーミスタに直列に接続された正転用ダイオードと
、前記モータに逆転側電流を流すべく前記他方の
サーミスタに直列に接続された逆転用ダイオード
とを有することを特徴とするモータ焼損保護回路
。 A forward/reverse switch means for selectively switching and connecting each terminal of a motor capable of forward and reverse rotation to a positive/negative power terminal, respectively, and a switch means provided in parallel with each other between one terminal of the motor and the switch means. a pair of positive characteristic thermistors for overcurrent prevention,
A forward rotation diode connected in series to the one thermistor to cause a forward rotation current to flow through the motor, and a reverse rotation diode connected in series to the other thermistor to flow a reverse rotation current to the motor. A motor burnout protection circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6592890U JPH0425496U (en) | 1990-06-21 | 1990-06-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6592890U JPH0425496U (en) | 1990-06-21 | 1990-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0425496U true JPH0425496U (en) | 1992-02-28 |
Family
ID=31598203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6592890U Pending JPH0425496U (en) | 1990-06-21 | 1990-06-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0425496U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5155940A (en) * | 1974-11-13 | 1976-05-17 | Hitachi Ltd | Mootakudokairono hogokairo |
| JPS5448028A (en) * | 1977-09-26 | 1979-04-16 | Mitsubishi Electric Corp | Reversible single phase induction motor |
-
1990
- 1990-06-21 JP JP6592890U patent/JPH0425496U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5155940A (en) * | 1974-11-13 | 1976-05-17 | Hitachi Ltd | Mootakudokairono hogokairo |
| JPS5448028A (en) * | 1977-09-26 | 1979-04-16 | Mitsubishi Electric Corp | Reversible single phase induction motor |