JP4878164B2 - 定電流回路 - Google Patents
定電流回路 Download PDFInfo
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- JP4878164B2 JP4878164B2 JP2006015420A JP2006015420A JP4878164B2 JP 4878164 B2 JP4878164 B2 JP 4878164B2 JP 2006015420 A JP2006015420 A JP 2006015420A JP 2006015420 A JP2006015420 A JP 2006015420A JP 4878164 B2 JP4878164 B2 JP 4878164B2
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- current
- mos transistor
- circuit
- terminal
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Description
2、5、12カレントミラー回路
3、22 演算増幅器
4 補償回路
M1、M2、M3、M11、M12、M13、M14、M15 NMOSトランジスタ
M4、M5、M16、M17 PMOSトランジスタ
Vref 基準電位
Claims (3)
- ゲート端子とドレイン端子が接続され該ドレイン端子に基準電流が入力される第1のMOSトランジスタと、該第1のMOSトランジスタと同一極性であってゲート端子が前記第1のMOSトランジスタのゲート端子と接続され前記基準電流に比例するミラー電流を供給する第2のMOSトランジスタを有する第1のカレントミラー回路と、
基準電位と該第1のカレントミラー回路の該第1のMOSトランジスタのゲート電圧で生成される電位とを比較する演算増幅器と、該演算増幅器の比較結果により前記ミラー電流を一定に保持する電流経路と、
該第1のカレントミラー回路によって供給される電流と、該電流経路によって供給される電流を合算した電流をミラーして出力する第2のカレントミラー回路と、を備えることを特徴とする定電流回路。 - 前記第2のカレントミラー回路は、ゲート端子とドレイン端子が前記第2のMOSトランジスタのドレイン端子に共通に接続された第3のMOSトランジスタと、該第3のMOSトランジスタと同一極性であってゲート端子が前記第3のMOSトランジスタのゲート端子と接続された第4のMOSトランジスタを備え、該第4のMOSトランジスタは前記第3のMOSトランジスタを流れる前記ミラー電流をさらにミラーして出力するものである請求項1に記載の定電流回路。
- 前記電流経路は、ドレイン端子が前記第3のMOSトランジスタのドレイン端子に接続され、ゲート端子が前記演算増幅器の出力に接続された第5のMOSトランジスタを備えることを特徴とする請求項2に記載の定電流回路。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006015420A JP4878164B2 (ja) | 2006-01-24 | 2006-01-24 | 定電流回路 |
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JP2006015420A JP4878164B2 (ja) | 2006-01-24 | 2006-01-24 | 定電流回路 |
Publications (2)
Publication Number | Publication Date |
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JP2007199854A JP2007199854A (ja) | 2007-08-09 |
JP4878164B2 true JP4878164B2 (ja) | 2012-02-15 |
Family
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JP2006015420A Expired - Fee Related JP4878164B2 (ja) | 2006-01-24 | 2006-01-24 | 定電流回路 |
Country Status (1)
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JP (1) | JP4878164B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4791560B2 (ja) * | 2009-04-13 | 2011-10-12 | 力晶科技股▲ふん▼有限公司 | 昇圧回路の制御回路 |
JP5644519B2 (ja) * | 2011-01-11 | 2014-12-24 | 株式会社リコー | 半導体集積回路 |
KR102408860B1 (ko) * | 2015-11-30 | 2022-06-15 | 에스케이하이닉스 주식회사 | 집적회로 및 그의 구동 방법 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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GB8616741D0 (en) * | 1986-07-09 | 1986-08-13 | Wellcome Found | Pharmacologically active compounds |
JP3977530B2 (ja) * | 1998-11-27 | 2007-09-19 | 株式会社東芝 | カレントミラー回路および電流源回路 |
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2006
- 2006-01-24 JP JP2006015420A patent/JP4878164B2/ja not_active Expired - Fee Related
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JP2007199854A (ja) | 2007-08-09 |
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