WO2003049266A3 - Multi-phase switching regulator - Google Patents

Multi-phase switching regulator Download PDF

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Publication number
WO2003049266A3
WO2003049266A3 PCT/US2002/038148 US0238148W WO03049266A3 WO 2003049266 A3 WO2003049266 A3 WO 2003049266A3 US 0238148 W US0238148 W US 0238148W WO 03049266 A3 WO03049266 A3 WO 03049266A3
Authority
WO
WIPO (PCT)
Prior art keywords
regulator
voltage
output
total
output current
Prior art date
Application number
PCT/US2002/038148
Other languages
French (fr)
Other versions
WO2003049266A2 (en
WO2003049266B1 (en
Inventor
Tod Schiff
Joseph C Buxton
Richard Redl
Original Assignee
Analog Devices Inc
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 Analog Devices Inc filed Critical Analog Devices Inc
Priority to AU2002352960A priority Critical patent/AU2002352960A1/en
Priority to EP02789920A priority patent/EP1485984B1/en
Publication of WO2003049266A2 publication Critical patent/WO2003049266A2/en
Publication of WO2003049266A3 publication Critical patent/WO2003049266A3/en
Publication of WO2003049266B1 publication Critical patent/WO2003049266B1/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
    • H02M3/158—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 including plural semiconductor devices as final control devices for a single load
    • H02M3/1584—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 including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

An N-phase switching voltage regulator includes N current sensing elements (14, 16, 23, 24) which carry respective phase currents. The voltages present at the switch node sides of the sensing elements are summed and presented to an amplifier (28) which also receives the regulator's output voltage, to produce an output which is proportional to the regulator's total output current Iout. The invention also provides a means for direct insertion of total inductor output current information into a regulator's voltage-mode control loop, to provide active voltage positioning (AVP) for the output voltage. A voltage based on total inductor output current is summed with the regulator's reference voltage; this sum and Vout are applied to the voltage control error amplifier (114), the output of which is processed to operate the regulator's switches (100, 102). This enables the regulator's ouput to have a desired droop impedance and to provide AVP of Vout as a function of total filtered inductor output current I¿out(fltr)?.
PCT/US2002/038148 2001-11-26 2002-11-25 Multi-phase switching regulator WO2003049266A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2002352960A AU2002352960A1 (en) 2001-11-26 2002-11-25 Multi-phase switching regulator
EP02789920A EP1485984B1 (en) 2001-11-26 2002-11-25 Multi-phase switching regulator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US33340401P 2001-11-26 2001-11-26
US60/333,404 2001-11-26
US10/284,222 US6683441B2 (en) 2001-11-26 2002-10-30 Multi-phase switching regulator
US10/284,222 2002-10-30

Publications (3)

Publication Number Publication Date
WO2003049266A2 WO2003049266A2 (en) 2003-06-12
WO2003049266A3 true WO2003049266A3 (en) 2003-11-13
WO2003049266B1 WO2003049266B1 (en) 2004-05-13

Family

ID=26962489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/038148 WO2003049266A2 (en) 2001-11-26 2002-11-25 Multi-phase switching regulator

Country Status (4)

Country Link
US (2) US6683441B2 (en)
EP (1) EP1485984B1 (en)
AU (1) AU2002352960A1 (en)
WO (1) WO2003049266A2 (en)

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Also Published As

Publication number Publication date
USRE39976E1 (en) 2008-01-01
US6683441B2 (en) 2004-01-27
EP1485984B1 (en) 2012-09-19
US20030102849A1 (en) 2003-06-05
WO2003049266A2 (en) 2003-06-12
EP1485984A2 (en) 2004-12-15
AU2002352960A1 (en) 2003-06-17
WO2003049266B1 (en) 2004-05-13

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