JPH0410595U - - Google Patents
Info
- Publication number
- JPH0410595U JPH0410595U JP4813890U JP4813890U JPH0410595U JP H0410595 U JPH0410595 U JP H0410595U JP 4813890 U JP4813890 U JP 4813890U JP 4813890 U JP4813890 U JP 4813890U JP H0410595 U JPH0410595 U JP H0410595U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- power
- power supply
- detection 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 6
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
Landscapes
- Stopping Of Electric Motors (AREA)
Description
第１図は本考案の一実施例を示す電気的構成図
であり、第２図は従来例を示す第１図相当図であ
る。
図面中、２１は直流電源回路、２２は全波整流
回路、２３は平滑用コンデンサ、２４，２５は直
流電源線、２６はインバータ主回路（スイツチン
グ回路）、２７は三相誘導電動機（交流電動機）
、２８は回生電力放電回路、２９は放電用抵抗、
３０はトランジスタ、３１は端子電圧検出回路、
３２は比較回路、３３は電源電圧検出回路、３７
は加算回路、３９は制御回路である。
FIG. 1 is an electrical configuration diagram showing an embodiment of the present invention, and FIG. 2 is a diagram corresponding to FIG. 1 showing a conventional example. In the drawing, 21 is a DC power supply circuit, 22 is a full-wave rectifier circuit, 23 is a smoothing capacitor, 24 and 25 are DC power lines, 26 is an inverter main circuit (switching circuit), and 27 is a three-phase induction motor (AC motor).
, 28 is a regenerative power discharge circuit, 29 is a discharge resistor,
30 is a transistor, 31 is a terminal voltage detection circuit,
32 is a comparison circuit, 33 is a power supply voltage detection circuit, 37
3 is an adder circuit, and 39 is a control circuit.
Claims (1)
力に変換し、こり変換した交流電力を基に交流電
動機を駆動制御するインバータ装置において、前
記交流電動機からの回生電力を放電する回生電力
放電回路と、前記交流電源の出力電圧を直流電圧
に変換する電源電圧検出回路と、この電源電圧検
出回路の検出電圧に所定電圧を加算して出力する
加算回路と、前記直流電源回路の出力端子電圧を
検出する端子電圧検出回路と、この端子電圧検出
回路の検出電圧が前記加算回路の出力電圧を超え
たときに前記回生電力放電回路を駆動させる制御
回路とを具備してなるインバータ装置。 In an inverter device that converts the output of an AC power source into AC power having an arbitrary frequency and drives and controls an AC motor based on the converted AC power, a regenerative power discharge circuit that discharges regenerated power from the AC motor; A power supply voltage detection circuit that converts the output voltage of the AC power supply into a DC voltage, an addition circuit that adds a predetermined voltage to the detected voltage of the power supply voltage detection circuit and outputs the result, and detects the output terminal voltage of the DC power supply circuit. An inverter device comprising: a terminal voltage detection circuit; and a control circuit that drives the regenerative power discharge circuit when the detected voltage of the terminal voltage detection circuit exceeds the output voltage of the addition circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4813890U JPH0410595U (en) | 1990-05-10 | 1990-05-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4813890U JPH0410595U (en) | 1990-05-10 | 1990-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0410595U true JPH0410595U (en) | 1992-01-29 |
Family
ID=31564685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4813890U Pending JPH0410595U (en) | 1990-05-10 | 1990-05-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0410595U (en) |
-
1990
- 1990-05-10 JP JP4813890U patent/JPH0410595U/ja active Pending
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