IN2012DN00558A - - Google Patents

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Publication number
IN2012DN00558A
IN2012DN00558A IN558DEN2012A IN2012DN00558A IN 2012DN00558 A IN2012DN00558 A IN 2012DN00558A IN 558DEN2012 A IN558DEN2012 A IN 558DEN2012A IN 2012DN00558 A IN2012DN00558 A IN 2012DN00558A
Authority
IN
India
Prior art keywords
output
voltage
sweep
measure
current
Prior art date
Application number
Inventor
Magnus Karlsson
Torbjorn Holmberg
Matz Anders Lenells
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of IN2012DN00558A publication Critical patent/IN2012DN00558A/en

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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
    • H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/157—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
    • G01R27/2605—Measuring capacitance

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dc-Dc Converters (AREA)
  • Measurement Of Resistance Or Impedance (AREA)

Abstract

A method of determining a measure of a total capacitance of one or more capacitive elements connected to an output of a switched mode power supply is described. The method includes generating a voltage control signal to cause an output voltage controller to sweep a voltage at the output of the switched mode power supply from an initial voltage value to a final voltage value. Sample values of a current at the output measured by a current sampler during the sweep of the output voltage are received, and an integrated current value representing a measure of the total capacitance using the received sample values is calculated.
IN558DEN2012 2009-06-25 2009-12-21 IN2012DN00558A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22033409P 2009-06-25 2009-06-25
PCT/EP2009/067633 WO2010149234A1 (en) 2009-06-25 2009-12-21 Capacitance determination in a switched mode power supply

Publications (1)

Publication Number Publication Date
IN2012DN00558A true IN2012DN00558A (en) 2015-06-12

Family

ID=41727532

Family Applications (1)

Application Number Title Priority Date Filing Date
IN558DEN2012 IN2012DN00558A (en) 2009-06-25 2009-12-21

Country Status (5)

Country Link
US (1) US8854026B2 (en)
EP (1) EP2446525B1 (en)
CN (1) CN102804577B (en)
IN (1) IN2012DN00558A (en)
WO (1) WO2010149234A1 (en)

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GB201116299D0 (en) * 2011-09-21 2011-11-02 Aker Subsea Ltd Condition monitoring employing cross-correlation
DE102012223227A1 (en) * 2011-12-30 2013-07-04 Gm Global Technology Operations, Llc Control system i.e. motor drive system, for controlling three-phase alternating current motor in hybrid electric vehicle, has creation link module generating command signals that linearly change during transition period
US9000701B2 (en) * 2011-12-30 2015-04-07 GM Global Technology Operations LLC Methods, systems and apparatus for generating voltage commands used to control operation of a permanent magnet machine
CN103364737A (en) * 2012-03-26 2013-10-23 鸿富锦精密工业（深圳）有限公司 Power capacitive-load testing device
WO2013147850A1 (en) * 2012-03-30 2013-10-03 Intel Corporation Controlling power gate circuitry based on dynamic capacitance of a circuit
US9444333B2 (en) * 2013-03-15 2016-09-13 Analog Devices, Inc. Auto-tuning switching regulator
WO2014166537A1 (en) * 2013-04-11 2014-10-16 Telefonaktiebolaget L M Ericsson (Publ) Voltage droop control in a voltage-regulated switched mode power supply
US10514398B2 (en) 2013-12-04 2019-12-24 Schneider Electric It Corporation Inverter regulation
CN104716814B (en) * 2013-12-13 2018-10-26 光宝电子(广州)有限公司 Power system and its control method
US9429610B2 (en) 2014-01-16 2016-08-30 Qualcomm Incorporated Voltage dependent die RC modeling for system level power distribution networks
US10108454B2 (en) 2014-03-21 2018-10-23 Intel Corporation Managing dynamic capacitance using code scheduling
EP3127022B1 (en) * 2014-03-31 2018-03-14 Telefonaktiebolaget LM Ericsson (publ) Switched mode power supply output filter configuration
WO2015149888A1 (en) * 2014-03-31 2015-10-08 Telefonaktiebolaget L M Ericsson (Publ) Switched mode power supply compensation loop
US9231472B2 (en) * 2014-04-11 2016-01-05 Infineon Technologies Austria Ag System and method for a switched-mode power supply
US9419627B2 (en) * 2014-05-08 2016-08-16 Intersil Americas LLC Current synthesizer correction
BE1022933B1 (en) 2014-11-07 2016-10-20 Mindcet Bvba Method and system for calculating model parameters for a capacitor to be modeled
EP3248278B1 (en) * 2015-01-21 2019-08-28 Telefonaktiebolaget L M Ericsson (publ) Method of operating a switched mode power supply, computer program, and switched mode power supply
US9733283B2 (en) * 2015-04-23 2017-08-15 Semiconductor Components Industries, Llc DC-DC converter load current estimation circuit
US9450492B1 (en) * 2015-06-24 2016-09-20 Infineon Technologies Ag System and method for controlling a duty cycle of a switched-mode power supply
US10056834B2 (en) * 2015-09-17 2018-08-21 Infineon Technologies Austria Ag Output capacitance calculation and control in a power supply
EP3160033B1 (en) 2015-10-20 2022-12-14 Schneider Electric IT Corporation Current sensing system for full-bridge pulse-width modulated inverter system
US10060954B2 (en) * 2016-01-29 2018-08-28 Fairchilf Semiconductor Corporation Load capacitance determination circuitry and power supply control
EP3482486B1 (en) 2016-07-08 2020-03-25 Telefonaktiebolaget LM Ericsson (PUBL) System and method to determine a capacitance of a capacitor
US10317966B2 (en) 2016-08-04 2019-06-11 Dell Products, L.P. Voltage regulation auto-tuning by detecting actual total capacitance at output terminal
US10564191B2 (en) 2016-11-22 2020-02-18 Oracle International Corporation Test tool for power distribution networks
US10768211B2 (en) 2017-08-25 2020-09-08 Oracle International Corporation System and method for current sense resistor compensation
US10620247B2 (en) 2017-09-27 2020-04-14 Quanta Computer Inc. System and method to detect capacitance of a power supply unit
US10873261B2 (en) * 2019-05-09 2020-12-22 Infineon Technologies Austria Ag Peak current estimation based on output capacitor parameters and change of output voltage
EP4336717A1 (en) 2022-09-08 2024-03-13 Hamilton Sundstrand Corporation Aircraft electrical system
US20250334620A1 (en) * 2024-04-29 2025-10-30 Spellman High-Voltage Electronics Corporation Measurement of load capacitance or impedance in high-voltage dc power supplies

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6275047B1 (en) * 1999-03-12 2001-08-14 Fluke Corporation Capacitance measurement
JP2002168893A (en) * 2000-11-30 2002-06-14 Agilent Technologies Japan Ltd High accuracy capacity measurement device and method
US6624640B2 (en) 2001-02-07 2003-09-23 Fluke Corporation Capacitance measurement
TWI242648B (en) * 2001-02-07 2005-11-01 Fluke Corp Capacitance measurement
US6965220B2 (en) * 2002-11-14 2005-11-15 Fyre Storm, Inc. System for controlling a plurality of pulse-width-modulated switching power converters
US7460441B2 (en) 2007-01-12 2008-12-02 Microchip Technology Incorporated Measuring a long time period
US8810227B2 (en) * 2011-01-14 2014-08-19 Infineon Technologies Austria Ag System and method for controlling a switched-mode power supply

Also Published As

Publication number Publication date
CN102804577B (en) 2016-04-13
US8854026B2 (en) 2014-10-07
CN102804577A (en) 2012-11-28
EP2446525B1 (en) 2018-12-19
EP2446525A1 (en) 2012-05-02
US20120098553A1 (en) 2012-04-26
WO2010149234A1 (en) 2010-12-29

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