JPH0318698U - - Google Patents
Info
- Publication number
- JPH0318698U JPH0318698U JP1989077522U JP7752289U JPH0318698U JP H0318698 U JPH0318698 U JP H0318698U JP 1989077522 U JP1989077522 U JP 1989077522U JP 7752289 U JP7752289 U JP 7752289U JP H0318698 U JPH0318698 U JP H0318698U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- signal generating
- generating section
- motor
- trigger
- 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
- 230000000630 rising effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Control Of Ac Motors In General (AREA)
Description
第１図は本考案の一実施例における電動機の速
度制御装置の中速度のタイミング波形図、第２図
は実施例および従来の電動機の速度調整装置のブ
ロツク回路図、第３図は従来の中速度のタイミン
グ波形図、第４図は同低速度のタイミング波形図
である。
１……操作部、３……半導体素子部、３ａ……
スイツチング素子、４……フアンモータ、５……
信号発生部。
FIG. 1 is a timing waveform diagram at a medium speed of a motor speed control device according to an embodiment of the present invention, FIG. 2 is a block circuit diagram of the embodiment and a conventional motor speed control device, and FIG. FIG. 4 is a timing waveform diagram of the same low speed. 1... Operation section, 3... Semiconductor element section, 3a...
Switching element, 4... Fan motor, 5...
Signal generator.
Claims (1)
電動機の回転速度を段階的に選択可能な操作部と
、前記操作部からの指示に従つて前記速調タツプ
の１つに相当長のトリガ信号を発生する信号発生
部と、前記トリガ信号を受けて前記電動機の通電
制御をするスイツチング素子とを有し、前記信号
発生部はあらかじめ設定した電源周波の立上がり
のゼロクロス点および立下がりのゼロクロス点に
おいて、交互に前記トリガ信号を発生してなる電
動機の速度制御装置。 An electric motor equipped with one or more speed adjustment taps, an operating section that allows the rotational speed of the motor to be selected in stages, and a trigger of a considerable length that is applied to one of the speed adjustment taps according to instructions from the operating section. The signal generating section has a signal generating section that generates a signal, and a switching element that receives the trigger signal and controls the energization of the motor, and the signal generating section has a preset rising zero-crossing point and falling zero-crossing point of the power supply frequency. A speed control device for an electric motor, which alternately generates the trigger signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989077522U JPH0318698U (en) | 1989-06-29 | 1989-06-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989077522U JPH0318698U (en) | 1989-06-29 | 1989-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0318698U true JPH0318698U (en) | 1991-02-25 |
Family
ID=31619989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989077522U Pending JPH0318698U (en) | 1989-06-29 | 1989-06-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318698U (en) |
-
1989
- 1989-06-29 JP JP1989077522U patent/JPH0318698U/ja active Pending
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