JPH0186496U - - Google Patents
Info
- Publication number
- JPH0186496U JPH0186496U JP1987181562U JP18156287U JPH0186496U JP H0186496 U JPH0186496 U JP H0186496U JP 1987181562 U JP1987181562 U JP 1987181562U JP 18156287 U JP18156287 U JP 18156287U JP H0186496 U JPH0186496 U JP H0186496U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- circuit
- switching circuit
- driving
- isolation
- 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
- 238000002955 isolation Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Direct Current Motors (AREA)
Description
第１図は本考案の回路構成を示す回路図、第２
図は第１図のＡ１，Ｂ部の詳細例を示す回路図、
第３図は従来の回路構成を示す回路図、第４図は
第３図のＡ１部の詳細例を示す回路図、第５図は
第４図におけるＶＣ投断時のタイムチヤートであ
る。
＋Ｖ，−Ｖ……モーター駆動用直流電源の正極
及び負極、ＴＲ１〜ＴＲ４……モーター駆動用ト
ランジスタ、Ｄ１〜Ｄ４……フライホイール用ダ
イオード、Ｍ……直流サーボモーター、Ａ１〜Ａ
４……アイソレーシヨン形増幅器、ＶＦ１〜ＶＦ
４……フロート電源、Ｓ１〜Ｓ４……制御信号、
ＰＣ１……フオトカプラ、Ｒ１，Ｒ１０，Ｒ１１
……抵抗器、ＴＲ１０……トランジスタ、ＺＤ１
０……ツエナーダイオード、ＩＣ１……集積回路
、ＰＡ１……プリアンプ。
Figure 1 is a circuit diagram showing the circuit configuration of the present invention, Figure 2 is a circuit diagram showing the circuit configuration of the present invention.
The figure is a circuit diagram showing a detailed example of parts A1 and B in Figure 1,
3 is a circuit diagram showing a conventional circuit configuration, FIG. 4 is a circuit diagram showing a detailed example of section A1 in FIG. 3, and FIG. 5 is a time chart when VC is cut off in FIG. 4. +V, -V... Positive and negative poles of DC power supply for motor drive, TR1 to TR4... Transistor for motor drive, D1 to D4... Diode for flywheel, M... DC servo motor, A1 to A
4...Isolation type amplifier, VF1 to VF
4...Float power supply, S1-S4...Control signal,
PC1...Photocoupler, R1, R10, R11
...Resistor, TR10...Transistor, ZD1
0... Zener diode, IC1... integrated circuit, PA1... preamplifier.
Claims (1)
してその両極間にそれぞれ２つの駆動用スイツチ
素子が直列に接続された第１及び第２の直列体が
並列接続されたスイツチ回路と、前記スイツチ素
子の各々を駆動するためのアイソレーシヨン形増
幅器において一次側の制御直流電源の電圧を監視
し、所定のしきい値でオン・オフするスイツチン
グ回路と、前記スイツチング回路の入力を前記制
御直流電源に接続し前記スイツチング回路の出力
を前記アイソレーシヨン形増幅器のアイソレーシ
ヨン回路の一次側直流電源とすることを特徴とす
るモーター駆動増幅回路。 A switch circuit in which a DC power supply for driving a motor, first and second series bodies each having two drive switch elements connected in series between the two poles of the DC power supply are connected in parallel, and the switch element. a switching circuit that monitors the voltage of a primary side control DC power supply in an isolation type amplifier for driving each of the circuits and turns it on and off at a predetermined threshold; and a switching circuit that connects the input of the switching circuit to the control DC power supply. A motor drive amplifier circuit, characterized in that the output of the switching circuit is used as a primary DC power source of an isolation circuit of the isolation type amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181562U JPH0186496U (en) | 1987-11-27 | 1987-11-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181562U JPH0186496U (en) | 1987-11-27 | 1987-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0186496U true JPH0186496U (en) | 1989-06-08 |
Family
ID=31473043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987181562U Pending JPH0186496U (en) | 1987-11-27 | 1987-11-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0186496U (en) |
-
1987
- 1987-11-27 JP JP1987181562U patent/JPH0186496U/ja active Pending
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