JPS60177686U - power converter - Google Patents
power converterInfo
- Publication number
- JPS60177686U JPS60177686U JP6484784U JP6484784U JPS60177686U JP S60177686 U JPS60177686 U JP S60177686U JP 6484784 U JP6484784 U JP 6484784U JP 6484784 U JP6484784 U JP 6484784U JP S60177686 U JPS60177686 U JP S60177686U
- Authority
- JP
- Japan
- Prior art keywords
- detection means
- output
- signal
- converter
- failure
- 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
Landscapes
- Rectifiers (AREA)
- Control Of Ac Motors In General (AREA)
- Protection Of Static Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第1図は本考案の一実施例の構成を適用対象と −共
に示したブロック回路図、第2図は同実施例の作用を説
明するためのタイ−ムチヤード、第3図は縦来装置の構
成を適用対象と共に示した回路図である。
図におりて、1はコンバータ、1a〜1fはスイッチン
グ素子としてのダイオード、2は平滑用のコンデンサ、
3はイシバータ、9は電流検出手段としての直流変流器
、20は故障検出手段とし 、ての故障検出回路である
。なお、各図中同一符号は同一または相当部分を示すも
のとする。Fig. 1 is a block circuit diagram showing the configuration of an embodiment of the present invention together with its application target, Fig. 2 is a time chart for explaining the operation of the embodiment, and Fig. 3 is a vertically operated device. FIG. 2 is a circuit diagram showing the configuration together with an application target. In the figure, 1 is a converter, 1a to 1f are diodes as switching elements, 2 is a smoothing capacitor,
3 is an ishiverter, 9 is a DC transformer as a current detection means, and 20 is a failure detection means, which is a failure detection circuit. Note that the same reference numerals in each figure indicate the same or corresponding parts.
Claims (2)
ータの出力端に平滑用のコンデンサが接続、された電力
変換装置において、前記コンデンサに流れる電流を検出
する電流検出手段と、この電流検出手段の出力信号に基
いて、前記コンデンサに流れる電流が前記コンバータに
供給される交流によって定まる特定の周期で極大になら
ないことを検出して前記コンバータの故障信号を発生す
る故障検出手段とを具備したことを特徴とする電力変換
装置。(1) In a power conversion device in which a smoothing capacitor is connected to the output end of a converter formed by bridge-connecting switching elements, there is provided a current detection means for detecting the current flowing through the capacitor, and an output signal of the current detection means. Based on this, the converter is characterized by comprising failure detection means for generating a failure signal for the converter by detecting that the current flowing through the capacitor does not reach a maximum in a specific period determined by the alternating current supplied to the converter. power conversion equipment.
の高周波成分を除去する低域フィルタと、この低域フィ
ルタの出力を矩形波に整形する波、 形整形回路
と、この波形成形回路の矩形波の縁部を検出して所定時
間だけ一定レベルの信号を一出力する単安定マルチバイ
ブレータと、この単安定マルチバイブレータが一定レベ
ルの信号を出力しないとき故障に対応する信号を出力す
るフリップ・フロップとを備えたことを特徴とする実用
新案登録請求の範囲第1項記載の電力変換装置。(2) The failure detection means includes a low-pass filter for removing high-frequency components of the output signal of the current detection means, a wave shaping circuit for shaping the output of the low-pass filter into a rectangular wave, and a waveform shaping circuit for shaping the output of the low-pass filter into a rectangular wave. A monostable multivibrator detects the edge of a rectangular wave and outputs a signal at a constant level for a predetermined period of time, and a flip vibrator outputs a signal corresponding to a failure when the monostable multivibrator does not output a signal at a constant level. 2. The power conversion device according to claim 1, further comprising a flop.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6484784U JPS60177686U (en) | 1984-05-02 | 1984-05-02 | power converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6484784U JPS60177686U (en) | 1984-05-02 | 1984-05-02 | power converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60177686U true JPS60177686U (en) | 1985-11-26 |
Family
ID=30596307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6484784U Pending JPS60177686U (en) | 1984-05-02 | 1984-05-02 | power converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60177686U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03207274A (en) * | 1990-01-08 | 1991-09-10 | Hitachi Ltd | Detector for abnormality of inverter device |
-
1984
- 1984-05-02 JP JP6484784U patent/JPS60177686U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03207274A (en) * | 1990-01-08 | 1991-09-10 | Hitachi Ltd | Detector for abnormality of inverter device |
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