DE69434735D1 - Schaltnetzteil mit einer Schaltung zum Abschätzen des Ausgangsstroms - Google Patents

Schaltnetzteil mit einer Schaltung zum Abschätzen des Ausgangsstroms

Info

Publication number
DE69434735D1
DE69434735D1 DE69434735T DE69434735T DE69434735D1 DE 69434735 D1 DE69434735 D1 DE 69434735D1 DE 69434735 T DE69434735 T DE 69434735T DE 69434735 T DE69434735 T DE 69434735T DE 69434735 D1 DE69434735 D1 DE 69434735D1
Authority
DE
Germany
Prior art keywords
estimating
circuit
power supply
output current
switching power
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
Application number
DE69434735T
Other languages
English (en)
Other versions
DE69434735T2 (de
Inventor
Douglas John Dromgoole
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE69434735D1 publication Critical patent/DE69434735D1/de
Publication of DE69434735T2 publication Critical patent/DE69434735T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/40—Testing power supplies

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dc-Dc Converters (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Measurement Of Current Or Voltage (AREA)
DE69434735T 1993-07-30 1994-07-27 Schaltnetzteil mit einer Schaltung zum Abschätzen des Ausgangsstroms Expired - Fee Related DE69434735T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/099,781 US5457620A (en) 1993-07-30 1993-07-30 Current estimating circuit for switch mode power supply
US99781 1993-07-30

Publications (2)

Publication Number Publication Date
DE69434735D1 true DE69434735D1 (de) 2006-06-22
DE69434735T2 DE69434735T2 (de) 2007-04-26

Family

ID=22276588

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69434735T Expired - Fee Related DE69434735T2 (de) 1993-07-30 1994-07-27 Schaltnetzteil mit einer Schaltung zum Abschätzen des Ausgangsstroms

Country Status (4)

Country Link
US (1) US5457620A (de)
EP (1) EP0636889B1 (de)
JP (1) JPH07322612A (de)
DE (1) DE69434735T2 (de)

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JP2014200119A (ja) * 2011-08-10 2014-10-23 パナソニック株式会社 スイッチング電源装置
US9484797B2 (en) 2011-10-26 2016-11-01 Qorvo Us, Inc. RF switching converter with ripple correction
CN103988406B (zh) 2011-10-26 2017-03-01 Qorvo美国公司 射频(rf)开关转换器以及使用rf开关转换器的rf放大装置
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WO2014062902A1 (en) 2012-10-18 2014-04-24 Rf Micro Devices, Inc Transitioning from envelope tracking to average power tracking
US9627975B2 (en) 2012-11-16 2017-04-18 Qorvo Us, Inc. Modulated power supply system and method with automatic transition between buck and boost modes
US9929696B2 (en) 2013-01-24 2018-03-27 Qorvo Us, Inc. Communications based adjustments of an offset capacitive voltage
US9178472B2 (en) 2013-02-08 2015-11-03 Rf Micro Devices, Inc. Bi-directional power supply signal based linear amplifier
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WO2014164755A2 (en) 2013-03-11 2014-10-09 Cirrus Logic, Inc. Quantization error reduction in constant output current control drivers
EP2974540B1 (de) 2013-03-11 2019-08-07 Signify Holding B.V. Verminderung von stromschwankungen durch einen gesteuerten ausgleichstrom
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US9504106B2 (en) 2013-07-29 2016-11-22 Cirrus Logic, Inc. Compensating for a reverse recovery time period of a bipolar junction transistor (BJT) in switch-mode operation of a light-emitting diode (LED)-based bulb
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US9648674B2 (en) 2013-08-27 2017-05-09 Texas Instruments Incorporated Method and apparatus for calculating an average value of an inaccessible current from an accessible current
CN103472283B (zh) * 2013-09-25 2016-07-13 矽力杰半导体技术(杭州)有限公司 电压检测方法及电路以及带该电压检测电路的开关电源
KR102132979B1 (ko) * 2013-12-23 2020-07-13 엘지이노텍 주식회사 출력 전류 추정 장치
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US9504118B2 (en) 2015-02-17 2016-11-22 Cirrus Logic, Inc. Resistance measurement of a resistor in a bipolar junction transistor (BJT)-based power stage
US9603206B2 (en) 2015-02-27 2017-03-21 Cirrus Logic, Inc. Detection and control mechanism for tail current in a bipolar junction transistor (BJT)-based power stage
US9609701B2 (en) 2015-02-27 2017-03-28 Cirrus Logic, Inc. Switch-mode drive sensing of reverse recovery in bipolar junction transistor (BJT)-based power converters
US9912297B2 (en) 2015-07-01 2018-03-06 Qorvo Us, Inc. Envelope tracking power converter circuitry
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Also Published As

Publication number Publication date
DE69434735T2 (de) 2007-04-26
JPH07322612A (ja) 1995-12-08
US5457620A (en) 1995-10-10
EP0636889B1 (de) 2006-05-17
EP0636889A1 (de) 1995-02-01

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee