IT1392043B1 - Circuito di rilevazione di corrente per applicazioni pwm con modulazione a larghezza d'impulso e relativo processo - Google Patents

Circuito di rilevazione di corrente per applicazioni pwm con modulazione a larghezza d'impulso e relativo processo

Info

Publication number
IT1392043B1
IT1392043B1 ITMI2008A001632A ITMI20081632A IT1392043B1 IT 1392043 B1 IT1392043 B1 IT 1392043B1 IT MI2008A001632 A ITMI2008A001632 A IT MI2008A001632A IT MI20081632 A ITMI20081632 A IT MI20081632A IT 1392043 B1 IT1392043 B1 IT 1392043B1
Authority
IT
Italy
Prior art keywords
detection circuit
pulse width
current detection
width modulation
pwm applications
Prior art date
Application number
ITMI2008A001632A
Other languages
English (en)
Inventor
Maurizio Nessi
Luca Schillaci
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 ITMI2008A001632A priority Critical patent/IT1392043B1/it
Priority to US12/541,468 priority patent/US8174292B2/en
Publication of ITMI20081632A1 publication Critical patent/ITMI20081632A1/it
Application granted granted Critical
Publication of IT1392043B1 publication Critical patent/IT1392043B1/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • H03F3/45192—Folded cascode stages
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
ITMI2008A001632A 2008-09-12 2008-09-12 Circuito di rilevazione di corrente per applicazioni pwm con modulazione a larghezza d'impulso e relativo processo IT1392043B1 (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITMI2008A001632A IT1392043B1 (it) 2008-09-12 2008-09-12 Circuito di rilevazione di corrente per applicazioni pwm con modulazione a larghezza d'impulso e relativo processo
US12/541,468 US8174292B2 (en) 2008-09-12 2009-08-14 Current sensing circuit for PWM applications with pulse width modulation and corresponding current process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2008A001632A IT1392043B1 (it) 2008-09-12 2008-09-12 Circuito di rilevazione di corrente per applicazioni pwm con modulazione a larghezza d'impulso e relativo processo

Publications (2)

Publication Number Publication Date
ITMI20081632A1 ITMI20081632A1 (it) 2010-03-13
IT1392043B1 true IT1392043B1 (it) 2012-02-09

Family

ID=40679387

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI2008A001632A IT1392043B1 (it) 2008-09-12 2008-09-12 Circuito di rilevazione di corrente per applicazioni pwm con modulazione a larghezza d'impulso e relativo processo

Country Status (2)

Country Link
US (1) US8174292B2 (it)
IT (1) IT1392043B1 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015131391A1 (en) * 2014-03-07 2015-09-11 Nokia Technologies Oy Device and method for current sensing and power supply modulator using the same
US10250198B2 (en) * 2017-05-02 2019-04-02 Microchip Technology Incorporated Methods of adjusting gain error in instrumentation amplifiers
DE102019219759B4 (de) * 2019-12-16 2021-08-19 Continental Automotive Gmbh Schaltungsanordnung zum Erfassen eines durch eine bipolare Last fließenden Stroms
FR3115427A1 (fr) 2020-09-07 2022-04-22 Stmicroelectronics (Grenoble 2) Sas Amplificateur opérationnel

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4885517A (en) * 1987-09-10 1989-12-05 Seagate Technology, Inc. Voice coil actuator positioning amplifier
IT1296072B1 (it) * 1997-11-06 1999-06-09 Sgs Thomson Microelectronics Circuito di rilevamento di corrente con elevata impedenza di ingresso
US5999052A (en) * 1998-04-28 1999-12-07 Lucent Technologies Inc. High speed, fine-resolution gain programmable amplifier
US6606212B1 (en) * 1999-03-17 2003-08-12 International Business Machines Corporation Wideband readout of magneto-resistive heads for data storage
US6420910B1 (en) * 1999-04-27 2002-07-16 International Business Machines Corporation Quasi-current sensing input impedance controlled preamplifier for magnetoresistive elements
IT1313389B1 (it) * 1999-07-07 2002-07-23 St Microelectronics Srl Sistema di controllo e pil0taggio di un attuatore elettromagnetico asingolo avvolgimento impiegante un unico amplificatore operazionale
JP2002151966A (ja) * 2000-11-14 2002-05-24 Pioneer Electronic Corp アイソレータ回路
US6400225B1 (en) * 2000-11-20 2002-06-04 National Semiconductor Corporation Differential difference amplifier for amplifying small signals close to zero volts
US7135928B2 (en) * 2003-01-30 2006-11-14 Broadcom Corporation Method for transconductance linearization for DC-coupled applications
TWI235541B (en) * 2004-06-25 2005-07-01 Anpec Electronics Corp Current detection circuit and method for use in DC-to-DC converter
US7145395B2 (en) * 2004-09-16 2006-12-05 Qualcomm Incorporated Linear transconductance cell with wide tuning range
EP1641116A1 (en) * 2004-09-27 2006-03-29 STMicroelectronics S.r.l. Reduced hardware control circuit device with current loop for broad band hard disk drive applications

Also Published As

Publication number Publication date
ITMI20081632A1 (it) 2010-03-13
US20100066413A1 (en) 2010-03-18
US8174292B2 (en) 2012-05-08

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