JPS62132695U - - Google Patents
Info
- Publication number
- JPS62132695U JPS62132695U JP1986019619U JP1961986U JPS62132695U JP S62132695 U JPS62132695 U JP S62132695U JP 1986019619 U JP1986019619 U JP 1986019619U JP 1961986 U JP1961986 U JP 1961986U JP S62132695 U JPS62132695 U JP S62132695U
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- width modulation
- motor
- signal
- drive 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 5
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Control Of Direct Current Motors (AREA)
Description
第１図は本考案のパルス幅変調駆動回路の回路
図、第２図は信号検出制御手段と切換手段との詳
細回路図、第３図はテープレコーダの外観斜視図
、第４図はパルス幅変調による電源電圧の変化を
示す特性図、第５図は従来のパルス幅変調駆動回
路の回路図である。
１……パルス幅変調駆動回路、６，７……駆動
モータ、８……信号検出制御手段、１１……切換
手段。
Fig. 1 is a circuit diagram of the pulse width modulation drive circuit of the present invention, Fig. 2 is a detailed circuit diagram of the signal detection control means and switching means, Fig. 3 is an external perspective view of the tape recorder, and Fig. 4 is the pulse width modulation drive circuit. A characteristic diagram showing changes in power supply voltage due to modulation, FIG. 5 is a circuit diagram of a conventional pulse width modulation drive circuit. DESCRIPTION OF SYMBOLS 1... Pulse width modulation drive circuit, 6, 7... Drive motor, 8... Signal detection control means, 11... Switching means.
Claims (1)
制御を行うパルス幅変調モータ駆動回路において
、前記パルス幅変調信号の有無を検出する信号検
出制御手段と、この信号検出制御手段からの検出
信号により前記駆動モータの２次側と接地間に制
御抵抗の断続切換を行う切換手段とを設けたこと
を特徴とするパルス幅変調モータ駆動回路。 (2) 駆動モータは直流モータである実用新案登
録請求の範囲第１項記載のパルス幅変調モータ駆
動回路。[Claims for Utility Model Registration] (1) In a pulse width modulation motor drive circuit that controls rotation of a drive motor using a pulse width modulation signal, a signal detection control means for detecting the presence or absence of the pulse width modulation signal, and a signal detection control means for detecting the presence or absence of the pulse width modulation signal; A pulse width modulation motor drive circuit comprising: switching means for switching the control resistor between the secondary side of the drive motor and ground in response to a detection signal from the control means. (2) The pulse width modulation motor drive circuit according to claim 1, wherein the drive motor is a DC motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986019619U JPS62132695U (en) | 1986-02-13 | 1986-02-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986019619U JPS62132695U (en) | 1986-02-13 | 1986-02-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62132695U true JPS62132695U (en) | 1987-08-21 |
Family
ID=30814376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986019619U Pending JPS62132695U (en) | 1986-02-13 | 1986-02-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62132695U (en) |
-
1986
- 1986-02-13 JP JP1986019619U patent/JPS62132695U/ja active Pending