JP7403154B2 - 漏洩電流監視装置 - Google Patents
漏洩電流監視装置 Download PDFInfo
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- JP7403154B2 JP7403154B2 JP2020020647A JP2020020647A JP7403154B2 JP 7403154 B2 JP7403154 B2 JP 7403154B2 JP 2020020647 A JP2020020647 A JP 2020020647A JP 2020020647 A JP2020020647 A JP 2020020647A JP 7403154 B2 JP7403154 B2 JP 7403154B2
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- leakage current
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- 238000012806 monitoring device Methods 0.000 title claims description 19
- 238000001514 detection method Methods 0.000 claims description 47
- 230000003321 amplification Effects 0.000 claims description 18
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910001035 Soft ferrite Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
12 同調回路
13 ノイズ除去回路
14 整流回路
15 電圧増幅回路
16 レベル設定回路
17 接点出力回路
19 動作電圧生成回路
Claims (2)
- 電気機器から流出する漏洩電流を検出する電流検出回路と、前記電流検出回路から出力 される検出電圧に基づいて接点オン信号を生成する接点出力回路とを備え、
前記電流検出回路の検出電圧を前記接点出力回路の動作レベルまで高める動作電圧生成 回路を、電流検出回路の出力と接点出力回路の入力との間に有する無電源方式の漏洩電流監視装置であって、
前記動作電圧生成回路は、前記電流検出回路の検出電圧を共振させる同調回路と、前記 同調回路の出力電圧からサージ成分を除去するノイズ除去回路と、前記ノイズ除去回路の 出力電圧を直流に変換する整流回路と、前記整流回路の出力電圧を前記接点出力回路の動 作レベルまで高める電圧増幅回路とで構成されていることを特徴とする漏洩電流監視装置。 - 前記電圧増幅回路の出力と前記接点出力回路の入力との間に、接点出力回路から接点オ ン信号を出力するための閾値を設定するレベル設定回路を介挿した請求項1に記載の漏洩 電流監視装置。
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JP2020020647A JP7403154B2 (ja) | 2020-02-10 | 2020-02-10 | 漏洩電流監視装置 |
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JP2020020647A JP7403154B2 (ja) | 2020-02-10 | 2020-02-10 | 漏洩電流監視装置 |
Publications (2)
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JP2021129332A JP2021129332A (ja) | 2021-09-02 |
JP7403154B2 true JP7403154B2 (ja) | 2023-12-22 |
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JP2020020647A Active JP7403154B2 (ja) | 2020-02-10 | 2020-02-10 | 漏洩電流監視装置 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5013532B2 (ja) | 2008-02-28 | 2012-08-29 | 学校法人玉川学園 | 移動物体追跡装置、移動物体追跡方法及びプログラム |
US20160276824A1 (en) | 2015-03-16 | 2016-09-22 | Magnachip Semiconductor, Ltd. | Leakage current detection circuit, light apparatus comprising the same and leakage current detection method |
JP6216014B2 (ja) | 2008-11-18 | 2017-10-18 | 株式会社半導体エネルギー研究所 | 表示装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5013532Y1 (ja) * | 1970-05-22 | 1975-04-25 | ||
JPS6216014A (ja) * | 1985-07-12 | 1987-01-24 | 松下電工株式会社 | 過電流検出器 |
JPH09247844A (ja) * | 1996-03-07 | 1997-09-19 | New Japan Radio Co Ltd | 漏電遮断器 |
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2020
- 2020-02-10 JP JP2020020647A patent/JP7403154B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5013532B2 (ja) | 2008-02-28 | 2012-08-29 | 学校法人玉川学園 | 移動物体追跡装置、移動物体追跡方法及びプログラム |
JP6216014B2 (ja) | 2008-11-18 | 2017-10-18 | 株式会社半導体エネルギー研究所 | 表示装置 |
US20160276824A1 (en) | 2015-03-16 | 2016-09-22 | Magnachip Semiconductor, Ltd. | Leakage current detection circuit, light apparatus comprising the same and leakage current detection method |
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