JPS61123695U - - Google Patents
Info
- Publication number
- JPS61123695U JPS61123695U JP719285U JP719285U JPS61123695U JP S61123695 U JPS61123695 U JP S61123695U JP 719285 U JP719285 U JP 719285U JP 719285 U JP719285 U JP 719285U JP S61123695 U JPS61123695 U JP S61123695U
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- waveform
- photocoupler
- detection device
- generation 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 5
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
Landscapes
- Protection Of Static Devices (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来の故障検出装置の構成を示す図、第３図
は従来の故障検出装置の問題点を示す等価回路図
である。
２……コンデンサ、３……ゲート信号発生回路
、４〜１〜４―４……スイツチング素子、５……
負荷、９……比較回路、１０，１１……フオトカ
プラ、１２……波形発生回路。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure shows the configuration of a conventional failure detection device, and FIG. 3 is an equivalent circuit diagram showing problems with the conventional failure detection device. 2...Capacitor, 3...Gate signal generation circuit, 4-1-4-4...Switching element, 5...
Load, 9... Comparison circuit, 10, 11... Photocoupler, 12... Waveform generation circuit.
Claims (1)
障検出装置において、インバータのスイツチング
素子に対するゲート信号に基づきインバータ出力
電圧に対応した電圧波形を発生する波形発生回路
と、インバータの正および負の出力電圧を検出す
るフオトカブラと、このフオトカプラの出力波形
と上記波形発生回路から発生される電圧波形とを
比較し、両者が不一致のときインバータの故障検
出信号を出力する比較回路とを備えて成るインバ
ータの故障検出装置。 A fault detection device for an inverter that converts DC power to AC power includes a waveform generation circuit that generates a voltage waveform corresponding to the inverter output voltage based on a gate signal to the switching elements of the inverter, and detects the positive and negative output voltages of the inverter. an inverter failure detection device comprising: a photocoupler; and a comparison circuit that compares the output waveform of the photocoupler with the voltage waveform generated from the waveform generation circuit and outputs an inverter failure detection signal when the two do not match. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP719285U JPS61123695U (en) | 1985-01-22 | 1985-01-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP719285U JPS61123695U (en) | 1985-01-22 | 1985-01-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61123695U true JPS61123695U (en) | 1986-08-04 |
Family
ID=30485324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP719285U Pending JPS61123695U (en) | 1985-01-22 | 1985-01-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61123695U (en) |
-
1985
- 1985-01-22 JP JP719285U patent/JPS61123695U/ja active Pending
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