JPS61120296U - - Google Patents
Info
- Publication number
- JPS61120296U JPS61120296U JP1985003862U JP386285U JPS61120296U JP S61120296 U JPS61120296 U JP S61120296U JP 1985003862 U JP1985003862 U JP 1985003862U JP 386285 U JP386285 U JP 386285U JP S61120296 U JPS61120296 U JP S61120296U
- Authority
- JP
- Japan
- Prior art keywords
- drive circuit
- variable resistor
- motor drive
- varying
- parallel
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Control Of Direct Current Motors (AREA)
Description
第１図は本考案回路の一実施例の回路図、第２
図は従来回路の一例の回路図である。
１，３…アンプ、２…ズームモータ、４…不感
帯回路、５…分圧回路、Ｄ２，Ｄ３…ツエナーダ
イオード、Ｄ４，Ｄ５…ダイオード、Ｒ３〜Ｒ７
…抵抗、＋Ｖｃｃ…電源、ＶＲ，Ｒ１…可変抵抗
。
Fig. 1 is a circuit diagram of an embodiment of the circuit of the present invention;
The figure is a circuit diagram of an example of a conventional circuit. 1, 3... Amplifier, 2... Zoom motor, 4... Dead band circuit, 5... Voltage dividing circuit, D2 , D3 ... Zener diode, D4 , D5 ... Diode, R3 to R7
...Resistance, +Vcc...Power supply, VR, R1 ...Variable resistance.
Claims (1)
駆動電圧を駆動回路部の基準電圧を中心に可変し
てモータを正、逆方向に回転するモータ駆動回路
において、電源端子間に２個のツエナーダイオー
ドを同方向に直列に接続し、その接続点に上記基
準電圧点を接続し、該ツエナーダイオードの直列
接続の両端に並列に上記可変抵抗の両端を接続し
、上記可変抵抗の可動接片にアンプ、並列に逆方
向に接続された２個のダイオードによる不感帯回
路、分圧回路を介して上記駆動回路部を接続して
なるモータ駆動回路。 In a motor drive circuit that rotates the motor in the forward and reverse directions by varying the motor drive voltage around the reference voltage of the drive circuit section by varying the resistance value of the variable resistor, two Zener diodes are connected between the power supply terminals. connected in series in the same direction, the reference voltage point is connected to the connection point, both ends of the variable resistor are connected in parallel to both ends of the series connection of the Zener diodes, and an amplifier is connected to the movable contact piece of the variable resistor. A motor drive circuit in which the drive circuit section is connected through a dead band circuit and a voltage divider circuit formed by two diodes connected in parallel in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985003862U JPH051998Y2 (en) | 1985-01-16 | 1985-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985003862U JPH051998Y2 (en) | 1985-01-16 | 1985-01-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61120296U true JPS61120296U (en) | 1986-07-29 |
| JPH051998Y2 JPH051998Y2 (en) | 1993-01-19 |
Family
ID=30478888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985003862U Expired - Lifetime JPH051998Y2 (en) | 1985-01-16 | 1985-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH051998Y2 (en) |
-
1985
- 1985-01-16 JP JP1985003862U patent/JPH051998Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH051998Y2 (en) | 1993-01-19 |