JPS63182697U - - Google Patents
Info
- Publication number
- JPS63182697U JPS63182697U JP7261287U JP7261287U JPS63182697U JP S63182697 U JPS63182697 U JP S63182697U JP 7261287 U JP7261287 U JP 7261287U JP 7261287 U JP7261287 U JP 7261287U JP S63182697 U JPS63182697 U JP S63182697U
- Authority
- JP
- Japan
- Prior art keywords
- regenerative
- circuit
- comparison
- reference voltage
- discharge
- 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
- 230000001172 regenerating effect Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
Description
第１図はこの考案の一実施例による回生放電回
路を示すブロツク図、第２図は従来の回生放電回
路を示すブロツク図である。
図において、１は３相交流電源、２は整流器、
３は電解コンデンサ、４は速度制御装置、５は電
動機、６は基準用整流器、７は基準用コンデンサ
、８は電圧比較回路、９は放電用パワートランジ
スタ、１０は放電抵抗、１１は差動アンプである
。なお、図中、同一符号は同一又は相当部分を示
す。
FIG. 1 is a block diagram showing a regenerative discharge circuit according to an embodiment of this invention, and FIG. 2 is a block diagram showing a conventional regenerative discharge circuit. In the figure, 1 is a three-phase AC power supply, 2 is a rectifier,
3 is an electrolytic capacitor, 4 is a speed control device, 5 is a motor, 6 is a reference rectifier, 7 is a reference capacitor, 8 is a voltage comparison circuit, 9 is a power transistor for discharging, 10 is a discharging resistor, 11 is a differential amplifier It is. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
て、電動機が停止する時に発生する回生エネルギ
ーを熱として放出する回生放電回路において、差
動アンプにて基準電圧に変える回路と、その基準
電圧と回生電圧とを比較する比較回路とを有し、
上記比較回路の信号でパワートランジスタで放電
抵抗に電流を流す様に動作することを特徴とする
回生放電回路。 In a servo system that controls the speed of an electric motor, a comparison is made between a circuit that uses a differential amplifier to convert to a reference voltage in a regenerative discharge circuit that releases regenerative energy generated when the motor stops as heat, and the reference voltage and regenerative voltage. and a comparison circuit to
A regenerative discharge circuit characterized in that a power transistor operates to cause a current to flow through a discharge resistor in response to a signal from the comparison circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7261287U JPS63182697U (en) | 1987-05-15 | 1987-05-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7261287U JPS63182697U (en) | 1987-05-15 | 1987-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63182697U true JPS63182697U (en) | 1988-11-24 |
Family
ID=30916216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7261287U Pending JPS63182697U (en) | 1987-05-15 | 1987-05-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63182697U (en) |
-
1987
- 1987-05-15 JP JP7261287U patent/JPS63182697U/ja active Pending
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