IT1393680B1 - Dispositivo di pilotaggio a corrente costante con migliorata accuratezza - Google Patents

Dispositivo di pilotaggio a corrente costante con migliorata accuratezza

Info

Publication number
IT1393680B1
IT1393680B1 ITMI2009A000518A ITMI20090518A IT1393680B1 IT 1393680 B1 IT1393680 B1 IT 1393680B1 IT MI2009A000518 A ITMI2009A000518 A IT MI2009A000518A IT MI20090518 A ITMI20090518 A IT MI20090518A IT 1393680 B1 IT1393680 B1 IT 1393680B1
Authority
IT
Italy
Prior art keywords
constant current
improved accuracy
pilot device
current pilot
accuracy
Prior art date
Application number
ITMI2009A000518A
Other languages
English (en)
Inventor
Massimo Michele Antonio Sorbera
Rosa Roberto La
Original Assignee
St Microelectronics Srl
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 St Microelectronics Srl filed Critical St Microelectronics Srl
Priority to ITMI2009A000518A priority Critical patent/IT1393680B1/it
Priority to US12/751,919 priority patent/US8421426B2/en
Publication of ITMI20090518A1 publication Critical patent/ITMI20090518A1/it
Application granted granted Critical
Publication of IT1393680B1 publication Critical patent/IT1393680B1/it
Priority to US13/828,535 priority patent/US9007044B2/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/395—Linear regulators
    • H05B45/397—Current mirror circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40—Details of LED load circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
ITMI2009A000518A 2009-03-31 2009-03-31 Dispositivo di pilotaggio a corrente costante con migliorata accuratezza IT1393680B1 (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ITMI2009A000518A IT1393680B1 (it) 2009-03-31 2009-03-31 Dispositivo di pilotaggio a corrente costante con migliorata accuratezza
US12/751,919 US8421426B2 (en) 2009-03-31 2010-03-31 Constant current driving device having an improved accuracy
US13/828,535 US9007044B2 (en) 2009-03-31 2013-03-14 Constant current driving device having an improved accuracy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2009A000518A IT1393680B1 (it) 2009-03-31 2009-03-31 Dispositivo di pilotaggio a corrente costante con migliorata accuratezza

Publications (2)

Publication Number Publication Date
ITMI20090518A1 ITMI20090518A1 (it) 2010-10-01
IT1393680B1 true IT1393680B1 (it) 2012-05-08

Family

ID=41263983

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI2009A000518A IT1393680B1 (it) 2009-03-31 2009-03-31 Dispositivo di pilotaggio a corrente costante con migliorata accuratezza

Country Status (2)

Country Link
US (2) US8421426B2 (it)
IT (1) IT1393680B1 (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1393680B1 (it) 2009-03-31 2012-05-08 St Microelectronics Srl Dispositivo di pilotaggio a corrente costante con migliorata accuratezza
DE112013002099T5 (de) * 2012-04-20 2015-01-15 Vishay-Siliconix Strombegrenzungssysteme und Verfahren
DE102012224348A1 (de) * 2012-06-25 2014-01-02 Osram Gmbh Beleuchtungsanlage mit einer Schnittstelle aufweisend ein Netzgerät und mindestens ein Lichtquellenmodul
US8836404B2 (en) 2012-08-02 2014-09-16 Vishay-Siliconix Circuit for preventing reverse conduction
EP2701029B1 (en) * 2012-08-23 2018-02-07 ams AG Electric circuit of a switchable current source
ITMI20130057A1 (it) * 2013-01-17 2014-07-18 St Microelectronics Srl Driver di corrente per diodi led
CN103107697A (zh) * 2013-01-22 2013-05-15 深圳市华星光电技术有限公司 电流调节装置及其调节方法
CN103346537A (zh) * 2013-06-09 2013-10-09 苏州博创集成电路设计有限公司 短路保护结构
JP6495670B2 (ja) * 2015-01-28 2019-04-03 新日本無線株式会社 Ｌｅｄ駆動回路
US10915121B2 (en) * 2018-02-19 2021-02-09 Texas Instruments Incorporated Low dropout regulator (LDO) with frequency-dependent resistance device for pole tracking compensation
US10873292B2 (en) * 2018-12-11 2020-12-22 Analog Devices International Unlimited Company Relaxation oscillators with delay compensation
JP7163331B2 (ja) * 2020-01-30 2022-10-31 株式会社東芝 半導体装置
US11625054B2 (en) * 2021-06-17 2023-04-11 Novatek Microelectronics Corp. Voltage to current converter of improved size and accuracy
US11803203B2 (en) * 2021-09-13 2023-10-31 Silicon Laboratories Inc. Current sensor with multiple channel low dropout regulator

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
JPH0470215A (ja) * 1990-07-11 1992-03-05 Sony Corp Ｄ／ａ変換器
US5739678A (en) * 1996-12-18 1998-04-14 Lucent Technologies Inc. Voltage-to-current converter with rail-to-rail input range
US6320771B1 (en) * 2000-04-10 2001-11-20 International Business Machines Corporation Fault tolerant active current sharing
US6795009B2 (en) * 2002-09-09 2004-09-21 Primarion, Inc. System and method for current handling in a digitally-controlled power converter
JP3685134B2 (ja) * 2002-01-23 2005-08-17 セイコーエプソン株式会社 液晶ディスプレイのバックライト制御装置および液晶ディスプレイ
FR2842317B1 (fr) * 2002-07-09 2004-10-01 Atmel Nantes Sa Source de tension de reference, capteur de temperature, detecteur de seuil de temperature, puce et systeme correspondant
US7466116B2 (en) * 2004-04-12 2008-12-16 Renesas Technology America, Inc. Current sensing circuit for a multi-phase DC-DC converter
US7023182B1 (en) * 2004-11-03 2006-04-04 Intersil Americas Inc. Activating a phase in a multiphase DC/DC converter without disturbing the output voltage
JP4658623B2 (ja) * 2005-01-20 2011-03-23 ローム株式会社 定電流回路、それを用いた電源装置および発光装置
US8067927B2 (en) * 2006-07-11 2011-11-29 International Rectifier Corporation Digital PWM controller
US8405321B2 (en) * 2007-07-26 2013-03-26 Rohm Co., Ltd. Drive unit, smoothing circuit, DC/DC converter
TW200908526A (en) * 2007-08-09 2009-02-16 Ind Tech Res Inst DC-DC converter
JP5003346B2 (ja) * 2007-08-21 2012-08-15 日本電気株式会社 参照電圧生成回路及び参照電圧分配方法
IT1393680B1 (it) 2009-03-31 2012-05-08 St Microelectronics Srl Dispositivo di pilotaggio a corrente costante con migliorata accuratezza
TWI374689B (en) * 2009-06-10 2012-10-11 Green Solution Tech Co Ltd Power supply and controller
JP2012203673A (ja) * 2011-03-25 2012-10-22 Seiko Instruments Inc ボルテージレギュレータ
TWI499885B (zh) * 2012-11-23 2015-09-11 Realtek Semiconductor Corp 固定電流產生電路及相關的固定電流產生方法

Also Published As

Publication number Publication date
US20100244790A1 (en) 2010-09-30
ITMI20090518A1 (it) 2010-10-01
US8421426B2 (en) 2013-04-16
US20130265017A1 (en) 2013-10-10
US9007044B2 (en) 2015-04-14

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