JP4126496B2 - スイッチ監視回路 - Google Patents
スイッチ監視回路 Download PDFInfo
- Publication number
- JP4126496B2 JP4126496B2 JP2003392770A JP2003392770A JP4126496B2 JP 4126496 B2 JP4126496 B2 JP 4126496B2 JP 2003392770 A JP2003392770 A JP 2003392770A JP 2003392770 A JP2003392770 A JP 2003392770A JP 4126496 B2 JP4126496 B2 JP 4126496B2
- Authority
- JP
- Japan
- Prior art keywords
- switch
- capacitor
- monitoring circuit
- transistor
- voltage
- 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.)
- Expired - Fee Related
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Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
10 スイッチ
12 コンデンサ
14 トランジスタ
16 トランジスタ
18 バッテリー
20 電圧印加手段
22 マイコン
24 入力ライン
26 ダイオード
30 プルダウン抵抗
Claims (1)
- 操作に応答して開閉され機器に駆動電力を供給する一端が接地されたスイッチのスイッチ監視回路であって、
前記スイッチの非接地端側に接続され間欠的な信号によりオンオフされて電源電圧を前記スイッチに印加するトランジスタと、
前記トランジスタと前記スイッチとの接続点と接地点との間に接続された抵抗と、
前記スイッチに並列に接続されたコンデンサと、
前記コンデンサと前記トランジスタとの間に接続され前記コンデンサに蓄積された電荷が前記抵抗を介して放電するのを阻止するダイオードと、
前記スイッチの端子間電圧を検出する電圧検出手段とを備えてなるスイッチ監視回路。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003392770A JP4126496B2 (ja) | 2003-11-21 | 2003-11-21 | スイッチ監視回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003392770A JP4126496B2 (ja) | 2003-11-21 | 2003-11-21 | スイッチ監視回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005160166A JP2005160166A (ja) | 2005-06-16 |
JP4126496B2 true JP4126496B2 (ja) | 2008-07-30 |
Family
ID=34719362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003392770A Expired - Fee Related JP4126496B2 (ja) | 2003-11-21 | 2003-11-21 | スイッチ監視回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4126496B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5163723B2 (ja) | 2010-09-24 | 2013-03-13 | 株式会社デンソー | スイッチ監視装置、制御装置および制御方法 |
JP6493874B2 (ja) | 2015-05-29 | 2019-04-03 | アルプスアルパイン株式会社 | スイッチ監視回路 |
-
2003
- 2003-11-21 JP JP2003392770A patent/JP4126496B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2005160166A (ja) | 2005-06-16 |
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