WO2009110773A3 - Charge pump capable of controlling turn-on time of sharing transistor - Google Patents

Charge pump capable of controlling turn-on time of sharing transistor Download PDF

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Publication number
WO2009110773A3
WO2009110773A3 PCT/KR2009/001144 KR2009001144W WO2009110773A3 WO 2009110773 A3 WO2009110773 A3 WO 2009110773A3 KR 2009001144 W KR2009001144 W KR 2009001144W WO 2009110773 A3 WO2009110773 A3 WO 2009110773A3
Authority
WO
WIPO (PCT)
Prior art keywords
charge pump
sharing transistor
time
pump capable
controlling turn
Prior art date
Application number
PCT/KR2009/001144
Other languages
French (fr)
Korean (ko)
Other versions
WO2009110773A2 (en
Inventor
이정철
황명운
Original Assignee
(주)에프씨아이
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by (주)에프씨아이 filed Critical (주)에프씨아이
Publication of WO2009110773A2 publication Critical patent/WO2009110773A2/en
Publication of WO2009110773A3 publication Critical patent/WO2009110773A3/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G11C5/145—Applications of charge pumps; Boosted voltage circuits; Clamp circuits therefor
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C8/00—Arrangements for selecting an address in a digital store

Abstract

The present invention concerns a charge pump (CP) which is capable of controlling the turn-on time of a sharing transistor. More specifically, the disclosed charge pump sets up a time interval between a control signal controlling a source switch and a control signal controlling movement of a sharing transistor, then turns on the sharing transistor so that it reaches a certain voltage level. Therefore, the reverse current caused after the source switch is turned off is prevented and the dynamic current applied to a roof filter is stably maintained.
PCT/KR2009/001144 2008-03-07 2009-03-07 Charge pump capable of controlling turn-on time of sharing transistor WO2009110773A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020080021357A KR100933554B1 (en) 2008-03-07 2008-03-07 Charge pump with turn-on time control of sharing transistors
KR10-2008-0021357 2008-03-07

Publications (2)

Publication Number Publication Date
WO2009110773A2 WO2009110773A2 (en) 2009-09-11
WO2009110773A3 true WO2009110773A3 (en) 2009-12-30

Family

ID=41056490

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/001144 WO2009110773A2 (en) 2008-03-07 2009-03-07 Charge pump capable of controlling turn-on time of sharing transistor

Country Status (2)

Country Link
KR (1) KR100933554B1 (en)
WO (1) WO2009110773A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002246905A (en) * 2001-01-06 2002-08-30 Samsung Electronics Co Ltd Charging-pump circuit and phase locked loop equipped there with
JP2004208142A (en) * 2002-12-26 2004-07-22 Sony Corp Charge pump and pll circuit using the same
KR20060004792A (en) * 2004-07-08 2006-01-16 재단법인서울대학교산학협력재단 Clock and data recovery circuit and method using it
KR20070113591A (en) * 2006-05-25 2007-11-29 삼성전자주식회사 Charge pump for reducing turn-off time and phase locked loop having the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100948696B1 (en) * 2002-07-12 2010-03-22 매그나칩 반도체 유한회사 Charge pump circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002246905A (en) * 2001-01-06 2002-08-30 Samsung Electronics Co Ltd Charging-pump circuit and phase locked loop equipped there with
JP2004208142A (en) * 2002-12-26 2004-07-22 Sony Corp Charge pump and pll circuit using the same
KR20060004792A (en) * 2004-07-08 2006-01-16 재단법인서울대학교산학협력재단 Clock and data recovery circuit and method using it
KR20070113591A (en) * 2006-05-25 2007-11-29 삼성전자주식회사 Charge pump for reducing turn-off time and phase locked loop having the same

Also Published As

Publication number Publication date
KR100933554B1 (en) 2009-12-23
WO2009110773A2 (en) 2009-09-11
KR20090096032A (en) 2009-09-10

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