PH12017500476A1 - Constant on-time (cot) control in isolated converter - Google Patents

Constant on-time (cot) control in isolated converter

Info

Publication number
PH12017500476A1
PH12017500476A1 PH12017500476A PH12017500476A PH12017500476A1 PH 12017500476 A1 PH12017500476 A1 PH 12017500476A1 PH 12017500476 A PH12017500476 A PH 12017500476A PH 12017500476 A PH12017500476 A PH 12017500476A PH 12017500476 A1 PH12017500476 A1 PH 12017500476A1
Authority
PH
Philippines
Prior art keywords
electronic switch
control signal
constant
processor
primary side
Prior art date
Application number
PH12017500476A
Other versions
PH12017500476B1 (en
Inventor
Tien Chi Lin
Chih Yuan Liu
Yueh Ping Yu
Pei Lun Huang
Original Assignee
Alpha & Omega Semiconductor Cayman Ltd
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
Priority claimed from US14/562,735 external-priority patent/US9577543B2/en
Application filed by Alpha & Omega Semiconductor Cayman Ltd filed Critical Alpha & Omega Semiconductor Cayman Ltd
Publication of PH12017500476B1 publication Critical patent/PH12017500476B1/en
Publication of PH12017500476A1 publication Critical patent/PH12017500476A1/en

Links

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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
    • H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
    • H02M3/33592—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/36—Means for starting or stopping converters
    • 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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33515—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with digital control
    • 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
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33523—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

Landscapes

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

Abstract

The present invention discloses a constant on-time isolated converter comprising a transformer with a primary side and a secondary side. The primary side is connected to an electronic switch and secondary-side is connected to a load and a processor. The processor is connected to a driver on. primary side through at least one coupling element and to the electronic switch. The processor receives an output voltage or an output current across the load generating a control signal accordingly. The driver receives the control signal through the coupling element and accordingly changes the ON/OFF state of the electronic switch, regulating the output voltage and the output current via the transformer, where the duration of the ON/OFF state of the electronic switch is determined between the moment control signal changes from negative to positive and the moment it changes from positive to negative to achieve a high-speed load transient response.
PH12017500476A 2014-09-19 2017-03-13 Constant on-time (cot) control in isolated converter PH12017500476A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201410483711.9A CN105490567B (en) 2014-09-19 2014-09-19 Fixed ON time suitching type conversion equipment
US14/562,735 US9577543B2 (en) 2014-09-12 2014-12-07 Constant on time (COT) control in isolated converter
PCT/US2015/050536 WO2016044497A1 (en) 2014-09-19 2015-09-17 Constant on-time (cot) control in isolated converter

Publications (2)

Publication Number Publication Date
PH12017500476B1 PH12017500476B1 (en) 2017-07-31
PH12017500476A1 true PH12017500476A1 (en) 2017-07-31

Family

ID=55533822

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12017500476A PH12017500476A1 (en) 2014-09-19 2017-03-13 Constant on-time (cot) control in isolated converter

Country Status (6)

Country Link
EP (1) EP3195460A4 (en)
JP (1) JP6570202B2 (en)
KR (1) KR101915057B1 (en)
CN (1) CN105490567B (en)
PH (1) PH12017500476A1 (en)
WO (1) WO2016044497A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117590056B (en) * 2024-01-15 2024-04-26 广州德肯电子股份有限公司 Alternating current-direct current signal isolation detection circuit and detection device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7023717B2 (en) * 2001-05-10 2006-04-04 Fidelix Y.K. Switching power supply apparatus
US6510062B2 (en) * 2001-06-25 2003-01-21 Switch Power, Inc. Method and circuit to bias output-side width modulation control in an isolating voltage converter system
US6998828B2 (en) * 2004-03-29 2006-02-14 Semiconductor Components Industries, L.L.C. Low audible noise power supply controller and method therefor
RU2264685C1 (en) * 2004-04-01 2005-11-20 Общество с ограниченной ответственностью Научно-производственное предприятие НПП "Поликоммуникационные системы" Regulated voltage converter
WO2005101624A1 (en) * 2004-04-13 2005-10-27 System General Corp. Pwm controller having a modulator for saving power and reducing acoustic noise
US7280376B2 (en) 2004-10-15 2007-10-09 Dell Products L.P. Primary side voltage sense for AC/DC power supplies capable of compensation for a voltage drop in the secondary
US7483281B2 (en) * 2006-08-11 2009-01-27 System General Corp. Multi-channel power converter with switching frequency modulation circuit for power saving
CN101743684B (en) * 2007-07-18 2012-12-12 株式会社村田制作所 Insulating DC-DC converter
US7983061B2 (en) * 2008-02-22 2011-07-19 System General Corporation Switching controller capable of reducing acoustic noise for power converters
US8253403B2 (en) * 2008-12-16 2012-08-28 Green Solution Technology Co., Ltd. Converting circuit and controller for controlling the same
WO2011051824A1 (en) 2009-10-30 2011-05-05 Koninklijke Philips Electronics N.V. Isolated power converter having reduced stanby power
WO2012109783A1 (en) * 2011-02-14 2012-08-23 Intersil Americas Inc. Isolated boost dc/dc converter
JP2013027145A (en) * 2011-07-21 2013-02-04 Sanken Electric Co Ltd Switching power supply unit
US8873254B2 (en) 2012-03-12 2014-10-28 Linear Technology Corporation Isolated flyback converter with sleep mode for light load operation
CN103457453B (en) * 2012-06-04 2016-05-11 台达电子工业股份有限公司 A kind of control method for reducing audio noise

Also Published As

Publication number Publication date
CN105490567B (en) 2018-04-13
JP2017529051A (en) 2017-09-28
CN105490567A (en) 2016-04-13
WO2016044497A1 (en) 2016-03-24
EP3195460A4 (en) 2018-05-16
EP3195460A1 (en) 2017-07-26
PH12017500476B1 (en) 2017-07-31
KR20170048462A (en) 2017-05-08
JP6570202B2 (en) 2019-09-04
KR101915057B1 (en) 2018-12-28

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