JP4408716B2 - 逆極性電圧発生回路 - Google Patents
逆極性電圧発生回路 Download PDFInfo
- Publication number
- JP4408716B2 JP4408716B2 JP2004042462A JP2004042462A JP4408716B2 JP 4408716 B2 JP4408716 B2 JP 4408716B2 JP 2004042462 A JP2004042462 A JP 2004042462A JP 2004042462 A JP2004042462 A JP 2004042462A JP 4408716 B2 JP4408716 B2 JP 4408716B2
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- JP
- Japan
- Prior art keywords
- mos transistor
- charge transfer
- voltage
- transfer mos
- turned
- 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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- 239000000758 substrate Substances 0.000 claims description 42
- 239000004065 semiconductor Substances 0.000 claims description 36
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/06—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Semiconductor Integrated Circuits (AREA)
- Dc-Dc Converters (AREA)
- Logic Circuits (AREA)
- Electronic Switches (AREA)
Description
TR12 第2の電荷転送用MOSトランジスタ
TR13 第1の駆動用MOSトランジスタ
TR14 第2の駆動用MOSトランジスタ
10 容量素子 15 EEインバータ 20 出力端子
30 タイミング制御回路 40 インバータ 41 コンパレータ
42 インバータ
Claims (5)
- ソースが接地された第1の電荷転送用MOSトランジスタと、
前記第1電荷転送用のMOSトランジスタのドレインにドレインが接続された第2の電荷転送用MOSトランジスタと、
ソースに電源電圧VHが供給された第1の駆動用MOSトランジスタと、
ソースが前記第1の駆動用MOSトランジスタのドレインに接続されドレインが接地された第2の駆動用MOSトランジスタと、
前記第1及び第2の電荷転送用MOSトランジスタの接続点に一方の端子が接続され前記第1及び第2の駆動用MOSトランジスタの接続点に他方の端子が接続された容量素子と、
前記第1及び第2の電荷転送用MOSトランジスタ並びに前記第1及び第2の駆動用MOSトランジスタのオンオフを制御する制御回路と、を備え、前記第2の電荷転送用MOSトランジスタのソースから、前記電源電圧VHの極性を反転した反転電源電圧−VHを出力する逆極性電圧発生回路において、
前記第1の電荷転送用MOSトランジスタ、前記第1及び第2の駆動用MOSトランジスタがPチャネル型、前記第2の電荷転送用MOSトランジスタがNチャネル型で形成され、これらのMOSトランジスタがすべて同一のP型半導体基板表面に形成され、
前記第1の電荷転送用MOSトランジスタが前記P型半導体基板表面に形成された第1のNウエル内に形成されると共に、そのソースが該第1のNウエルに接続され、
前記第1の駆動用MOSトランジスタが前記P型半導体基板表面に形成された第2のNウエル内に形成されると共に、そのソースが該第2のNウエルに接続され、
前記第2の駆動用MOSトランジスタが前記P型半導体基板表面に形成された第3のNウエル内に形成されると共に、そのソースが該第3のNウエルに接続されたことを特徴とする逆極性電圧発生回路。 - 前記第1、第2及び第3のNウエルが互いに分離されていることを特徴とする請求項1に記載の逆極性電圧発生回路。
- 前記第2の電荷転送MOSトランジスタのソースが前記P型半導体基板に接続されていることを特徴とする請求項1に記載の逆極性電圧発生回路。
- 前記制御回路により、前記第2の電荷転送用MOSトランジスタをオフさせた状態で、前記第1の電荷転送用MOSトランジスタをオン、前記第1の駆動用MOSトランジスタをオン、前記第2の駆動用MOSトランジスタをオフさせることで、前記第1及び第2の電荷転送用MOSトランジスタの接続点の電圧を接地電圧に設定し、次に、前記制御回路により前記第1の電荷転送用MOSトランジスタをオフさせた状態で、前記第2の電荷転送用MOSトランジスタをオン、前記第1の駆動用MOSトランジスタをオフ、前記第2の駆動用MOSトランジスタをオンさせることで、前記コンデンサの容量カップリングにより前記第1及び第2の電荷転送用MOSトランジスタの接続点の電圧を接地電圧から低下させることを特徴とする請求項1に記載の逆極性電圧発生回路。
- 前記制御回路は、それに入力されるクロック信号を前記電源電圧VHと前記第2の電荷転送用MOSトランジスタのソースの電圧との間でスウィングさせるようにレベルシフトさせるレベルシフト回路と、このレベルシフト回路の出力のタイミングを制御するタイミング制御回路と、を備え、前記タイミング制御回路の出力を前記第1及び第2の電荷転送用MOSトランジスタ並びに前記第1及び第2の駆動用MOSトランジスタの各ゲートに印加することを特徴とする請求項4に記載の逆極性電圧発生回路。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004042462A JP4408716B2 (ja) | 2004-02-19 | 2004-02-19 | 逆極性電圧発生回路 |
TW094103942A TWI280727B (en) | 2004-02-19 | 2005-02-05 | Inverse polarity voltage generating circuit |
CNB2005100070838A CN100416798C (zh) | 2004-02-19 | 2005-02-07 | 逆极性电压发生电路 |
US11/058,429 US6982910B2 (en) | 2004-02-19 | 2005-02-16 | Reverse voltage generation circuit |
KR1020050013604A KR100659624B1 (ko) | 2004-02-19 | 2005-02-18 | 역극성 전압 발생 회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004042462A JP4408716B2 (ja) | 2004-02-19 | 2004-02-19 | 逆極性電圧発生回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005237103A JP2005237103A (ja) | 2005-09-02 |
JP4408716B2 true JP4408716B2 (ja) | 2010-02-03 |
Family
ID=34857974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004042462A Expired - Fee Related JP4408716B2 (ja) | 2004-02-19 | 2004-02-19 | 逆極性電圧発生回路 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6982910B2 (ja) |
JP (1) | JP4408716B2 (ja) |
KR (1) | KR100659624B1 (ja) |
CN (1) | CN100416798C (ja) |
TW (1) | TWI280727B (ja) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5399928A (en) * | 1993-05-28 | 1995-03-21 | Macronix International Co., Ltd. | Negative voltage generator for flash EPROM design |
JP3028942B2 (ja) * | 1997-12-01 | 2000-04-04 | 日本電気アイシーマイコンシステム株式会社 | 電圧発生回路 |
JP4701475B2 (ja) * | 1999-06-01 | 2011-06-15 | セイコーエプソン株式会社 | 電気光学装置の電源回路、電気光学装置の駆動回路、電気光学装置の駆動方法、電気光学装置および電子機器 |
JP3475143B2 (ja) * | 2000-03-15 | 2003-12-08 | 三洋電機株式会社 | 電圧反転回路 |
CN1246819C (zh) * | 2002-07-31 | 2006-03-22 | 友达光电股份有限公司 | 显示器的驱动电路 |
JP3687648B2 (ja) * | 2002-12-05 | 2005-08-24 | セイコーエプソン株式会社 | 電源供給方法及び電源回路 |
-
2004
- 2004-02-19 JP JP2004042462A patent/JP4408716B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-05 TW TW094103942A patent/TWI280727B/zh not_active IP Right Cessation
- 2005-02-07 CN CNB2005100070838A patent/CN100416798C/zh not_active Expired - Fee Related
- 2005-02-16 US US11/058,429 patent/US6982910B2/en not_active Expired - Lifetime
- 2005-02-18 KR KR1020050013604A patent/KR100659624B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1658484A (zh) | 2005-08-24 |
KR100659624B1 (ko) | 2006-12-20 |
KR20060042990A (ko) | 2006-05-15 |
US20050185469A1 (en) | 2005-08-25 |
CN100416798C (zh) | 2008-09-03 |
US6982910B2 (en) | 2006-01-03 |
JP2005237103A (ja) | 2005-09-02 |
TW200531414A (en) | 2005-09-16 |
TWI280727B (en) | 2007-05-01 |
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