JPS63146488U - - Google Patents
Info
- Publication number
- JPS63146488U JPS63146488U JP3590887U JP3590887U JPS63146488U JP S63146488 U JPS63146488 U JP S63146488U JP 3590887 U JP3590887 U JP 3590887U JP 3590887 U JP3590887 U JP 3590887U JP S63146488 U JPS63146488 U JP S63146488U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- circuit
- pulse signal
- inverter
- pwm
- 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
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
Description
第１図は本考案の一実施例のＰＷＭ方式インバ
ータの周波数検出異常装置の基本ブロツク図、第
２図は第１図の周波数比較演算回路の基本ブロツ
ク図、第３図は第２図の動作波形図である。
１……直流電源、２……インバータ回路、３…
…負荷、１１……周波数指令、１２……電圧指令
変換回路、１３……ＰＷＭパルス発生回路、１４
……周波数比較演算回路、２１……カウンタ部、
２２……周波数比較部。
Fig. 1 is a basic block diagram of the frequency detection abnormality device for a PWM inverter according to an embodiment of the present invention, Fig. 2 is a basic block diagram of the frequency comparison calculation circuit of Fig. 1, and Fig. 3 is the operation of Fig. 2. FIG. 1...DC power supply, 2...Inverter circuit, 3...
...Load, 11...Frequency command, 12...Voltage command conversion circuit, 13...PWM pulse generation circuit, 14
...Frequency comparison calculation circuit, 21...Counter section,
22...Frequency comparison section.
Claims (1)
に変換し負荷を駆動するインバータ回路に於て、
前記インバータ回路を構成する主回路素子を駆動
するＰＷＭパルス信号と前記インバータ回路の運
転指命である周波数指令信号を入力とし、前記Ｐ
ＷＭパルス信号を作るＰＷＭパルス信号発生回路
の周波数異常を出力する周波数比較演算回路を設
けたことを特徴とするＰＷＭ方式インバータの周
波数異常検出装置。 In an inverter circuit that converts input DC power into AC power of any frequency and drives a load,
A PWM pulse signal that drives the main circuit elements constituting the inverter circuit and a frequency command signal that is a driving instruction for the inverter circuit are input,
A frequency abnormality detection device for a PWM inverter, comprising a frequency comparison calculation circuit that outputs a frequency abnormality of a PWM pulse signal generation circuit that generates a WM pulse signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3590887U JPS63146488U (en) | 1987-03-13 | 1987-03-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3590887U JPS63146488U (en) | 1987-03-13 | 1987-03-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63146488U true JPS63146488U (en) | 1988-09-27 |
Family
ID=30845828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3590887U Pending JPS63146488U (en) | 1987-03-13 | 1987-03-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63146488U (en) |
-
1987
- 1987-03-13 JP JP3590887U patent/JPS63146488U/ja active Pending