JP6968638B2 - スイッチング周波数がジッタ周波数に近づくときにジッタ周波数を変調すること - Google Patents

スイッチング周波数がジッタ周波数に近づくときにジッタ周波数を変調すること Download PDF

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JP6968638B2
JP6968638B2 JP2017175201A JP2017175201A JP6968638B2 JP 6968638 B2 JP6968638 B2 JP 6968638B2 JP 2017175201 A JP2017175201 A JP 2017175201A JP 2017175201 A JP2017175201 A JP 2017175201A JP 6968638 B2 JP6968638 B2 JP 6968638B2
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coupled
signal
frequency
jitter
switch
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JP2018050451A5 (enExample
JP2018050451A (ja
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ミン ファム ジャオ
エム ウォング ランス
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パワー・インテグレーションズ・インコーポレーテッド
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10Regulating voltage or current 
    • G05F1/46Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/26Measuring noise figure; Measuring signal-to-noise ratio
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2832Specific tests of electronic circuits not provided for elsewhere
    • G01R31/2836Fault-finding or characterising
    • G01R31/2839Fault-finding or characterising using signal generators, power supplies or circuit analysers
    • G01R31/2841Signal generators
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28Testing of electronic circuits, e.g. by signal tracer
    • G01R31/317Testing of digital circuits
    • G01R31/31708Analysis of signal quality
    • G01R31/31709Jitter measurements; Jitter generators
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35Non-linear optics
    • G02F1/3515All-optical modulation, gating, switching, e.g. control of a light beam by another light beam
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/44Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M3/00Conversion of DC power input into DC power output
    • H02M3/22Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28Conversion 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
    • H02M3/325Conversion 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
    • H02M3/335Conversion 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
    • H02M3/33507Conversion 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M3/00Conversion of DC power input into DC power output
    • H02M3/22Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28Conversion 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
    • H02M3/325Conversion 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
    • H02M3/335Conversion 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
    • H02M3/33507Conversion 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
    • H02M3/33523Conversion 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M3/00Conversion of DC power input into DC power output
    • H02M3/22Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • H02M3/28Conversion 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
    • H02M3/325Conversion 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
    • H02M3/335Conversion 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
    • H02M3/33569Conversion 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
    • H02M3/33576Conversion 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
    • H02M3/33592Conversion 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00Automatic control of frequency or phase; Synchronisation
    • H03L7/06Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/187Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/0003Details of control, feedback or regulation circuits
    • H02M1/0025Arrangements for modifying reference values, feedback values or error values in the control loop of a converter

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Optics & Photonics (AREA)
  • Dc-Dc Converters (AREA)
JP2017175201A 2016-09-16 2017-09-12 スイッチング周波数がジッタ周波数に近づくときにジッタ周波数を変調すること Active JP6968638B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201662395942P 2016-09-16 2016-09-16
US62/395,942 2016-09-16
US15/631,998 US10088854B2 (en) 2016-09-15 2017-06-23 Modulating jitter frequency as switching frequency approaches jitter frequency
US15/631,998 2017-06-23

Publications (3)

Publication Number Publication Date
JP2018050451A JP2018050451A (ja) 2018-03-29
JP2018050451A5 JP2018050451A5 (enExample) 2020-07-27
JP6968638B2 true JP6968638B2 (ja) 2021-11-17

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Country Status (4)

Country Link
US (4) US10088854B2 (enExample)
EP (1) EP3300236B1 (enExample)
JP (1) JP6968638B2 (enExample)
CN (1) CN107834822B (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10088854B2 (en) 2016-09-15 2018-10-02 Power Integrations, Inc. Modulating jitter frequency as switching frequency approaches jitter frequency
US10205394B2 (en) 2016-09-16 2019-02-12 Power Integrations, Inc. Switched mode power converter controller with ramp time modulation with jitter frequency
US10826375B2 (en) 2018-12-11 2020-11-03 Power Integrations, Inc. Frequency jitter for a power converter
US10686375B1 (en) * 2019-01-31 2020-06-16 Texas Instruments Incorporated Power conversion with modulated switching
US11356010B2 (en) 2020-05-11 2022-06-07 Power Integrations, Inc. Controller with frequency request circuit
CN112953198B (zh) * 2021-02-05 2023-10-27 矽力杰半导体技术(杭州)有限公司 开关电源控制器及其控制方法
WO2023277922A1 (en) 2021-07-02 2023-01-05 Power Integrations, Inc. Adaptive ramp time modulation
US11870347B2 (en) 2022-01-28 2024-01-09 Texas Instruments Incorporated Spread spectrum modulation of rising and falling edge delays for current mode switching converters
US11996795B2 (en) 2022-03-28 2024-05-28 Power Integrations, Inc. Motor alignment control

Family Cites Families (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02266269A (ja) 1989-04-07 1990-10-31 Toshiba Corp 異常検出回路
US6107851A (en) 1998-05-18 2000-08-22 Power Integrations, Inc. Offline converter with integrated softstart and frequency jitter
US6249876B1 (en) 1998-11-16 2001-06-19 Power Integrations, Inc. Frequency jittering control for varying the switching frequency of a power supply
US6980441B2 (en) 2003-07-28 2005-12-27 Astec International Limited Circuit and method for controlling a synchronous rectifier in a power converter
US7026851B2 (en) * 2004-05-12 2006-04-11 System General Corp. PWM controller having frequency jitter for power supplies
US7425834B2 (en) 2005-08-26 2008-09-16 Power Integrations, Inc. Method and apparatus to select a parameter/mode based on a time measurement
CN2877127Y (zh) * 2005-12-01 2007-03-07 崇贸科技股份有限公司 具有频率调变以降低电源转换器电磁干扰的控制电路
US8994276B2 (en) 2006-03-28 2015-03-31 Wireless Environment, Llc Grid shifting system for a lighting circuit
US7671486B2 (en) 2006-10-31 2010-03-02 System General Corp. Switching controller having synchronous input for the synchronization of power converters
JP4210868B2 (ja) 2007-06-15 2009-01-21 サンケン電気株式会社 スイッチング電源装置
JP5230181B2 (ja) 2007-12-07 2013-07-10 パナソニック株式会社 エネルギー伝達装置およびエネルギー伝達制御用半導体装置
US8385088B2 (en) * 2010-12-06 2013-02-26 Power Integrations, Inc. Method and apparatus for implementing an unregulated dormant mode with output reset in a power converter
CN101610024B (zh) * 2008-06-20 2012-05-23 尼克森微电子股份有限公司 具频率抖动的频率发生器及脉宽调制控制器
JP5521371B2 (ja) 2009-04-02 2014-06-11 富士電機株式会社 発振回路およびそれを用いたスイッチング電源装置
CN101635511B (zh) 2009-05-26 2013-12-25 成都芯源系统有限公司 一种具有频谱整形功能的开关稳压电路及方法
US8368370B2 (en) 2009-11-10 2013-02-05 Power Integrations, Inc. Controller compensation for frequency jitter
US8410768B2 (en) 2010-01-19 2013-04-02 Delta Electronics, Inc. Switch-mode power supply having reduced audible noise
EP2617131A1 (en) 2010-09-13 2013-07-24 Nxp B.V. A method of controlling a switched mode power supply and controller therefor
JP5870278B2 (ja) 2011-01-05 2016-02-24 パナソニックIpマネジメント株式会社 半導体発光素子の点灯装置およびそれを用いた照明器具
TWI433437B (zh) 2011-02-01 2014-04-01 Richpower Microelectronics 用於切換式電源供應器的抖頻控制電路
TWI430545B (zh) * 2011-02-01 2014-03-11 Richpower Microelectronics 用於降低抖頻切換式電源供應器之輸出漣波的脈寬調變控制器及方法
US8730687B2 (en) * 2011-03-09 2014-05-20 System General Corporation Switching controller with valley-lock switching and limited maximum frequency for quasi-resonant power converters
TWI481169B (zh) 2011-05-27 2015-04-11 Leadtrend Tech Corp 控制切換式電源轉換器之功率開關跨壓之方法及其電路
US8611116B2 (en) * 2011-07-28 2013-12-17 Power Integrations, Inc. Varying switching frequency and period of a power supply controller
TWI451652B (zh) * 2011-10-05 2014-09-01 Leadtrend Tech Corp 電源控制器以及電源管理控制方法
CN103049150B (zh) 2011-10-14 2016-05-25 禾瑞亚科技股份有限公司 触摸屏的通信系统与方法
US20130182469A1 (en) 2012-01-16 2013-07-18 System General Corporation Electro-magnetic interference reduction circuit for power converters and method for the same
US8730104B2 (en) 2012-05-14 2014-05-20 King Fahd University Of Petroleum And Minerals Programmable wide-band radio frequency feed network
US9277604B2 (en) 2012-06-15 2016-03-01 Lightel Technologies, Inc. Linear solid-state lighting with ballast free of electric shock hazard
US20140085936A1 (en) * 2012-09-25 2014-03-27 Delta Electronics (Shanghai) Co., Ltd. Variable frequency converter and adjusting method for the same
US9246392B2 (en) * 2013-03-13 2016-01-26 Power Integrations, Inc. Switched mode power converter controller with ramp time modulation
US9184668B2 (en) * 2013-03-15 2015-11-10 Flextronics Ap, Llc Power management integrated circuit partitioning with dedicated primary side control winding
JP6131685B2 (ja) * 2013-04-03 2017-05-24 富士電機株式会社 スイッチング電源装置
US9685919B2 (en) 2013-08-21 2017-06-20 On-Bright Electronics (Shanghai) Co., Ltd. Amplification systems and methods with output regulation
US8970260B1 (en) 2013-11-21 2015-03-03 Nxp B.V. Output drivers
US9774248B2 (en) 2014-11-10 2017-09-26 Power Integrations, Inc. Introducing jitter to a switching frequency by way of modulating current limit
JP6497144B2 (ja) * 2015-03-13 2019-04-10 富士電機株式会社 スイッチング電源装置の制御回路およびスイッチング電源装置
US9450478B1 (en) 2015-04-10 2016-09-20 Power Integrations, Inc. Load responsive jitter
CN105226953B (zh) 2015-09-23 2018-02-02 成都芯源系统有限公司 抖频控制电路及其控制方法
US9876433B2 (en) 2016-02-26 2018-01-23 Power Integrations, Inc. Reduction of audible noise in a power converter
US10088854B2 (en) * 2016-09-15 2018-10-02 Power Integrations, Inc. Modulating jitter frequency as switching frequency approaches jitter frequency
US10205394B2 (en) 2016-09-16 2019-02-12 Power Integrations, Inc. Switched mode power converter controller with ramp time modulation with jitter frequency
TWI678059B (zh) * 2018-05-14 2019-11-21 通嘉科技股份有限公司 可抖動開關頻率之電源供應器以及電源控制器

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US10585444B2 (en) 2020-03-10
US20210333811A1 (en) 2021-10-28
US20200218298A1 (en) 2020-07-09
US20190011943A1 (en) 2019-01-10
CN107834822A (zh) 2018-03-23
US20180074531A1 (en) 2018-03-15
US10088854B2 (en) 2018-10-02
CN107834822B (zh) 2021-11-16
US11079778B2 (en) 2021-08-03
US11487311B2 (en) 2022-11-01
EP3300236A1 (en) 2018-03-28
JP2018050451A (ja) 2018-03-29
EP3300236B1 (en) 2024-05-22

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