CN101720526A - 可减少反馈信号的功率因数校正控制器 - Google Patents

可减少反馈信号的功率因数校正控制器 Download PDF

Info

Publication number
CN101720526A
CN101720526A CN200880014533A CN200880014533A CN101720526A CN 101720526 A CN101720526 A CN 101720526A CN 200880014533 A CN200880014533 A CN 200880014533A CN 200880014533 A CN200880014533 A CN 200880014533A CN 101720526 A CN101720526 A CN 101720526A
Authority
CN
China
Prior art keywords
inductor
output voltage
switch
power converter
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.)
Granted
Application number
CN200880014533A
Other languages
English (en)
Other versions
CN101720526B (zh
Inventor
约翰·L·梅兰松
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.)
Cirrus Logic Inc
Original Assignee
Cirrus Logic 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 Cirrus Logic Inc filed Critical Cirrus Logic Inc
Publication of CN101720526A publication Critical patent/CN101720526A/zh
Application granted granted Critical
Publication of CN101720526B publication Critical patent/CN101720526B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H02M1/42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208Arrangements for improving power factor of AC input
    • H02M1/4225Arrangements for improving power factor of AC input using a non-isolated boost converter
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00Conversion of analogue values to or from differential modulation
    • H03M3/30Delta-sigma modulation
    • H03M3/458Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/476Non-linear conversion systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00Climate change mitigation technologies for sector-wide applications
    • Y02P80/10Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Electrical Variables (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

一个功率控制系统(900),包括一个具有功率因数校正功能的反馈回路(PFC)和输出电压控制器(904)和一个开关功率变换器(906)。该开关功率变换器(906)包括一个可向输出电容器(106)供应电荷的电感器(110)和一个控制电感器电流升高时间的开关(908)。PFC与输出电压控制器(904)向开关(908)提供控制信号(CS1),控制PFC并调节开关功率变换器(906)的输出电压Vc(t)。在控制信号的但各周期内,PFC与输出电压控制器(904)利用接收自开关功率变换器(906)的单个反馈信号获得开关功率变换器(906)的线输入电压Vx(t)和输出电压Vc(t)。

Description

可减少反馈信号的功率因数校正控制器
优先权要求和相关专利申请
本专利申请要求依据35U.S.C.§119(e)和37C.F.R.§1.78享有2007年5月2日递交名为“功率因数校正(PFC)控制器装置和方法”的60/915,547号美国临时专利申请的权益,其通过引用被整体纳入本专利申请。
技术领域
本发明一般涉及信号处理领域,具体指功率因数校正及可降低反馈率的功率因数校正器。
背景技术
功率校正系统可提供可校正及可调控输出电压,该输出电压也广泛应用与可调控电压装置。图1示出了一个功率控制系统100,它包括有一个开关功率转换器102。该开关功率转换器102可进行功率因数校正,并提供恒定复合电压功率至负载112。电压输出装置101向全波段二极管桥式103提供交流电流(AC)输入电压Vin(t)。譬如,电压源101是公共电源,而AC交流电源线电压Vin(t)是60Hz/110V电源线电压,在欧洲是50Hz/220V线电源电压。整流器103将输入电压Vin(t)进行整流后,向开关功率变换器提供一个经过整流的随时间变化的直流输入电压Vx(t)。
开关功率转换器102的开关108调节经整流的时变输入电压Vx(t)通过电感器110到电容器106的能量传递。当开关108导通时,即接通“ON”时,电感器电流iL骤然上升。当开关108断开即显示“OFF”时电感器电流下降,并向电容器106提供电流iL以对其充电。一般将电感器电流iL骤然下降的时间周期称为“电感器回扫时间”。在至少一个实施例中,开关功率转换器102以间断电流的模式工作,即,电感器电流iL的上升时间加电感器回扫时间少于开关108接通的时间。开关108打开时电容器106向负荷电源112提供储存的能量。电容器106足够大,可使PFC和输出电压控制器114(将在以下详细讨论)所建立起的输出电压Vc(t)较好地保持恒定。输出电压Vc(t)在负载恒定条件下基本保持恒定。但是当负载条件改变时,输出电压Vc(t)将变化。PFC及输出电压控制器114可对Vc(t)变化作出反应,尽快调整控制信号CS0以维持线输出电压基本恒定。输出电压控制器114包括一个小电容器115,以滤掉初级供电电压Vx(t)中的任何高频信号。
功率控制系统100还包括一个控制开关108的PFC及输出电压控制器114,以便控制功率因数校正并调节开关功率变换器102的输出电压。功率因数校正技术的目的是使开关功率转换器102对电压源101体现电抗性。于是,PFC和输出电压控制器114试图控制电感器电流iL,使得平均电感器电流iL线性地且直接地与直流输入电压Vx(t)相关。
Figure G2008800145338D00021
《功率因数校正整流器的快速电压环路的补偿器设计与稳定性评价》(Compensator Design andStability Assessment for Fast Voltage Loops of Power FactorCorrection Rectifiers),IEEE Transactions on Power Electronics(IEEE电力电子学汇刊),第22卷,第5期,2007年9月,第1719-1729页。(在本文内称为
Figure G2008800145338D00022
),该文描述了一个PFC和输出电压控制器114的例子。PFC和输出电压控制器114提供一个脉冲宽度调制的(PWM)控制信号CS0,以控制开关108的导通性。在至少一个实施例中,开关108为一个场效应管(FET),而控制信号CS0是开关108的门电压。控制信号CS0的脉冲宽度值和占空比取决于两个反馈信号,即直流输入电压Vx(t)和电容电压/输出电压Vc(t)。
开关功率变换器114通过一个宽带电流回路116和一个低电压回路118接收两种反馈信号直流输入电压Vx(t)和输出电压Vc(t)。电流回路116以频率fc运转,该频率允许PFC与输出电压控制器114对直流输入电压Vx(t)作出回应调整,导致电感器电流iL随着该直流输入电压而变化,以便完成功率因数校正。电流回路频率一般被设定为介于20kHz与150kHz之间的一个值。电压回路118以一个较低的频率fv运行,典型的值为10-20Hz。电容器电压Vc(t)包括一个纹波电流元件,其频率为输入电压Vin(t)频率的两倍,如120Hz。因此,通过以10-20Hz频率运行,电压回路118可发挥一个滤流装置功能,对纹波电流元件的纹波电流进行过滤。
PFC与输出电压控制器114常常作为一个集成电路(IC)使用。因此,PFC与输出电压控制器114包括两个不同的管脚分别与电流反馈回路118连接。管脚是相对较贵的IC元件。此外,电压回路118中诸如高电压电阻等高电压元件也会增加PFC与输出电压控制器114的成本。
发明内容
在本发明的一个实例中,PFC控制器为一个控制功率因数校正并调节开关功率变换器输出电压的元件。开关功率变换器包括一个与直流输入电压节点偶联的电感器和一个与该电感器偶联的开关。PFC控制器包括一个接收来自开关功率变换器反馈信号的输入装置。PFC控制器的配置使之能够:
(a)至少确定:(i)直流输入电压和(ii)反馈信号开关功率变换器的输出电压其中一个。
(b)向开关提供控制信号,因此在开关的各个时期开关功率变换器可对控制信号作出回应,开关闭合时在首次间隔期电感器电流上升,开关断开时电感器回扫时间间隔期电感器电流下降。
(c1)这时,如果直流输入电压由(a)得到确定,那么PFC控制器又可被用来确定开关功率变换器的输出电压,其根据为该直流输入电压、电感器回扫时间和首次间隔;
(c2)此时,如果开关功率变换器输出电压由(a)得到确定,那么PFC控制器可被用来确定开关功率变换器的输入电压,其根据为该输出电压,电感器回扫时间和首次间隔。
在本发明的另一实例中,PFC控制器被用作控制功率因数校正,并调节开关功率变换器的输出电压。开关功率变换器包括一个与直流输入电压节点偶联的电感器和一恶搞与该电感器偶联的开关。PFC控制器包括一个可接收来自开关功率变换器反馈信号的输入装置。配备PFC控制器用于确定直流输入电压,并向开关提供控制信号,这样,在开关的各个时期开关功率变换器就可对控制信号作出回应,开关闭合时在首次间隔期电感器电流上升,开关断开时电感器回扫时间间隔电感器电流下降。该控制器还可用于确定启动功率输出电压,其根据为直流输入电压、电感器回扫时间和首次间隔期。
在本发明的另一实例中,PFC控制器用于控制功率因数校正并调节开关功率变换器的输出电压。开关功率变换器包括一个与直流输入电压偶联的电感器和一个与该电感器偶联的开关。PFC控制器包括一个可接收来自开关功率变换器的反馈信号输入装置。PFC控制器用于确定来自反馈信号的开关功率变换器输出电压,并向开关提供控制信号,这样,在开关的各个时期,开关功率变换器就可对控制信号作出回应,开关闭合时首次间隔期电感器电流上升,开关断开时电感器回扫时间间隔电感器电流下降。PFC控制器还可用于确定直流输入电压,其根据为输出电压、电感器回扫时间间隔和首次间隔期。
在本发明的有一个实例中,一种控制功率因数校正并调节开关功率变换器输出电压的方法包括接收来自开关功率变换器的反馈信号,这里指的开关功率变换器包括一个与直流输入电压节点偶联的电感器和一个与该电感器留恋的开关。该方法还包括:
(a)至少确定:(i)直流输入电压和(ii)反馈信号开关功率变换器的输出电压其中一个;
(b)向开关提供控制信号,这样,在开关的各个时期开关功率变换器就可对控制信号作出回应,开关闭合时首次间隔期电感器电流上升,开关断开时电感器回扫时间间隔期电感器电流下降;
(c1)这时,如果直流输入电压由(a)得到确定,可根据该输入电压、电感器回扫时间间隔期和首次间隔期确定开关功率变换器的输出电压;
(c2)此时,入股开关功率变换器的输出电压由(a)得到确定,可根据该输出电压、电感器回扫时间间隔期和首次间隔期确定直流输入电压。
在本发明另一实例中,控制功率因数校正并调节开关功率变换器输出电压的方法包括接收来自开关功率变换器的反馈信号和确定一个直流输入电压,此处开关功率变换器包括一个与直流输入电压节点偶联的传感器和一个该电感器偶联的开关。还包括向开关提供控制信号,这样,在开关的各个时期开关功率变换器就会对控制信号作出回应,开关闭合时首次间隔期电感器电流上升,开关断开时电感器回扫时间间隔期电感器电流下降。该方法还包括根据直流输入电压、电感器回扫时间间隔期和首次间隔期确定开关功率变换器的输出电压。
在本发明的另一实例中,一种控制功率因数校正并调节开关功率变换器输出电压地方法包括接收来自开关功率变换器的反馈信号和确定反馈信号开关功率变换器的输出电压,这里提到的开关功率变换器包括一个与直流输入电压偶联的电感器和与该电感器偶联的开关。该方法还包括向开关提供控制信号,这样,在开关的各个时期开关功率变换器就会对控制信号作出回应,开关闭合时首次间隔期电感器电流上升,开关闭合时电感器回扫时间间隔期电感器电流下降。该方法还包括根据输出电压、电感器回扫时间间隔期和首次间隔期确定直流输入电压。
附图说明
参考附图可以更好地理解本发明,还可以使熟悉该技术领域者明白本发明的各种目的、特征和优点。在这些附图中使用相同参考号代表相同或相似要素。
图1(已有技术)描绘的是一个功率控制系统的功率因数校正与输出电压调节。
图1A描绘一个功率控制系统确定直流输入电压与输出电压的单个反馈信号。
图2描绘图1A功率控制系统的一个实例。
图3描绘功率因数校正及输出电压调节过程。
图4和图5描绘传感器/转换器。
图6描绘电压反馈信号、电感器电流iL及其相对应的开关功率变换器开关状态的时间域图。
图7描绘电感器回扫时间间隔确定模块。
图8描绘PFC与输出电压控制器。
图9描绘图1A功率控制系统的一个实例。
图10描绘开关功率变换器开关的反馈信号及其相应的理论门电压与实际门电压及实际电流图解。
图11描绘电感器回扫时间间隔确定模块。
图12描绘图1A功率控制系统的一个实例。
图13描绘一个电感器回扫时间间隔确定模块。
图14描绘包括一个富余性与可靠性模块的图1A功率控制系统的一个实例。
具体实施方式
功率控制系统包括一个开关功率变换器和一个功率因数校正(PFC)与输出电压控制器。该开关功率变换器包括一个向输出电容器提供电荷的电感器和一个控制电感器电流上升时间与能量向输出电容器转移的开关。在不止一个实例中,PFC与输出电压控制器向控制功率因数校正并调节开关功率变换器输出电压的开关提供控制信号。在不止一个实例中,在单个控制信号周期内,PFC与输出电压控制根据从开关功率变换器接收的单个反馈信号确定开关功率变换器的直流输入电压与输出电压。在不止一个实例中,PFC与输出电压控制器可从反馈信号确定电感器回扫时间。PFC与输出电压控制器可确定直流输入电压或者输出电压,其中无论哪个都不能利用以确定电压、电感器回扫时间和受控制信号控制开关闭合(处于“ON”状态)时间经反馈信号确定。PFC与输出电压控制器利用直流输入电压和输出电压产生控制信号,以此完成功率因数校正和输出电压调节。
在不止一个实例中,PFC与输出电压控制器输入终端的总体数目减少或者额外的管脚具有其他用途。例如,通过仅运用一种反馈信号获得开关功率变换器的直流输入电压和输出电压,集成电路(IC)开关功率变换器的管脚数可减少一个。此外,在不止一个实例中,通过减少PFC与输出电压控制器接收的反馈信号数目,在不止一个实例中可减少诸如电压和/或电流递减电路等外周元件数目。减少套脚和相关重要性偏低的组件能降低成本。在不止一个实例中,PFC与输出电压控制器接收一个或更多用于保证可靠性与富余性的反馈信号,而未减少管脚数目。
图1A描绘功率控制系统150一个反馈信号VS(t)实例。功率控制系统150包括一个开关功率变换器154,可向电荷负载器112提供经功率因数校正并调节的输出电压Vc(t)。PFC与输出电压控制器156向开关功率变换器154控制考官108提供一个控制信号CS1,以此控制功率因数校正和电压调节。确定控制信号CS1时,PFC与输出电压控制器156接收来自开关功率变换器154的反馈信号VS(t)。PFC与输出电压控制器154可根据单个反馈信号CS1确定控制信号VS(t)。相应地,在不止一个实例中,PFC与输出电压控制器可利用诸如集成电路管脚等极少几个输入终端及极少外围元件。功率控制系统150可通过数字和/或类似硬件或者软硬件联用运行。在不止一个实例中,PFC与输出电压控制器156为一个可编程PFC与输出电压控制器,由Cirrus Logic代理公司代理发明人John L.Melanson申请的,代理人档案编号1759-CA,题为“可编程功率控制系统”(Programmable PowerControl System)的美国专利申请材料中也有同样的描述说明。
图2描绘了带有一个PFC与输出电压控制器202的功率控制器,该控制器包括一个来自开关节点的反馈信号VS(t),根据该反馈信号可确定直流输入电压Vx(t)和输出电压Vc(t)。功率控制系统200和PFC与输出电压控制器202各自代表功率控制系统150与PFC及输出电压控制器156的一个实例。开关功率变换器201向电荷负载器112提供一个劲功率因数校正和调节的输出电压Vc(t)。整个输出电容器106的输出电压Vc(t)相当于负荷电压VL(t)。功率控制系统200包括一个反馈路径203,可向PFC与输出电压控制器202提供来自开关节点的反馈信号VS(t)。在不止一个实例中,向PFC与输出电压控制器202提供的反馈信号VS(t)是一个电压VS(t)或者电流,二者由在开关节点处感应而产生。反馈路径203包括开关节点、PFC与输出电压控制器202和开关108。PFC与输出电压控制器202可由单个反馈信号VS(t)确定直流输入电压Vx(t)和输出电压Vc(t)。PFC与输出电压控制器202利用已确定的开关功率变换器201直流输入电压Vx(t)和输出电压Vc(t)产生控制信号CS1
图3描绘了一个典型的PFC与输出电压调节过程300。在不止一个实例中,PFC与输出电压控制器202遵照PFC与输出电压调节程序300运行,确定启动功率控制器102的直流输入电压Vx(t)与输出电压Vc(t),控制功率因数校正,调节启动功率控制器102的输出电压Vc(t)。在运行程序302中,PFC与输出电压控制器202接收来自开关功率变换器201的反馈信号VS(t)。在不止一个实例中,反馈信号VS(t)是这样的一种信号,PFC与输出电压控制器202可从该信号获得直流输入电压Vx(t)和输出电Vc(t),并确定电感器回扫时间间隔T2在不止一个实例中,反馈信号VS(t)(参见图2)为开关功率变换器201的开关节点处感应的电压VS(t)。PFC与输出电压调解程序300可在硬件或软件中实施完成,并由PFC与输出电压控制器202的一个处理器来执行。
在不止一个实例中,反馈信号VS(t)的最大额定电压由电荷负载器112的电压需求决定。例如,如果电荷负载器112为一个12V的发动机,反馈信号VS(t)的最大额定电压将为12V;如果电荷负载器112为发光双电极固定装置,该反馈信号VS(t)的最大额定电压可能为400V,等等。开关节点反馈信号VS(t)的确切最大额定电压典型的特征为,其随着由于系统阻抗引起的输出电压Vc(t)变化(如通过双电极111的电压下降)而变化。
在不止一个实例中,PFC与输出电压控制器202的类似电路元件用于产生控制信号CS1,而且该反馈信号VS(t)可直接被该类似电路元件接收。在不止一个实例中,PFC与输出电压控制器202作为一个集成电路(IC)运行,而PFC与输出电压控制器202的输入信号即为电压或电流,其大小受到限制,以防破坏PFC与输出电压控制器202。因此,在不止一个实例中,功率控制系统200包括一个传感器/转换器206,可将反馈信号VS(t)转换为最大值,如+1V,可由经集成电路实施完成的PFC与输出电压控制器202直接接收。传感器/转换器206可通过PFC与输出电压控制器202或者PFC与输出电压控制器202的全部或部分集成元件单独运行。
图4与图5分别描绘了典型的传感器/转换器。传感器/转换器402代表传感器/转换器206的一个实例。传感器/转换器402包括一个电压分离器/类数字系统。传感器/转换器402包括一个具有阻抗的电压分离器R0/R1,可使信号VS(t)递减至可被PFC与输出电压控制器202利用的水平。R0与R1的电阻值取决于与R0和R1偶联的电压以及经PFC与输出电压控制器202接收的输入电压与电流水平。在一个实例中,电阻R0为399欧姆,电阻R1为1欧姆。传感器/转换器402还包括一个类数字(A/D)转换器404,可将经过电阻R1转换为典型数字反馈信号V(n),供数字系统406处理,此处“n”表示一个特定的例子。在不止一个实例中,数字系统406代表PFC与输出电压控制器202的处理加工、驱动器及其它功能。
图5描绘了电流输出装置及A/D传感器/转换器502。传感器/转换器502代表传感器/转换器206的另一个实例。传感器/转换器502包括一个电流输出装置504,可向A/D转换器404提供一个电流输出信号i(t).电流输出信号i(t)值与反馈信号VS(t)保持一致。传感器/转换器502还包括A/D 404,可将输出信号i(t)转换为典型的数字反馈信号V(n),供数字系统406处理加工。
图6描绘了(i)来自开关节点(图602)的电压反馈信号VS(t),(ii)电感器电流iL(图604)和(iii)开关108(图606)相应状态的时间域图表。参照图2与图6发现,开关108的状态受控制信号CS1控制。控制信号CS1频率等于1/TTx,此处TTx为第x帧控制信号CS1的周期,“x”指整数标号。控制信号CS1的频率fCS1受PFC与输出电压控制器202控制。在不止一个实例中,PFC与输出电压控制器202不断变换着频率fCS1t,以提供调节输出电压Vc(t),且为了诸如减少电磁干扰波发射应按照预定的宽谱策略变换频率。控制信号CS1的频率极有可能在20kHZ与150kHz之间,这两个值分别可避免成音频率和无效频率出现。
在传感器电流iL上升时间间隔T1,即开关108处于“ON”状态时,传感器电流iL升高,而开关节点处感应电压VS(t)则降低至大约0电压VS(t)降至“大约”0是因为,较小非理想电压可出现下降,例如当开关108闭合或经过双电极111的电压下时就会出现电压下降,正因为如此,通过这种非理想电压下降可将反馈信号VS(t)的电压可与例如直流输入电压Vx(t)或者输出电压Vc(t)加以区分。然而,除非有其他含义,确定或获得开关功率变换器201的直流输入电压Vx(t)和/或输出电压VS(t)的应用目的包括确定或获得开关功率变换器201大约或按比例放大的直流输入电压和/或大约或按比例放大的输出电压。
在电感器回扫时间间隔T2期间,当开关处于“OFF”状态时,双电极111导电,电感器电流iL下降为0安培,电压VS(t)升至Vc(t)。电感器电流iL降至0安培后,双电极二极管111体制停止导电,经过电感器110的电压下降大约为0,反馈信号电压VS(t)等于Vx(t)。当电感器电流iL达到0时,诸如经过电感器110的寄生电容等寄生阻抗开关节点处的608纹波电流衰减。
参照图2、图3与图6可看出,PFC与输出电压控制器202根据输出电压调节调节程序300对反馈信号VS(t)进行加工处理。运行程序304可确定来自反馈信号VS(t)的线输入电压Vx(t)或输出电压Vc(t)。运行程序304是否能确定线输入电压Vx(t)或输出电压Vc(t)可在设计中做出选择。一般来说,输出电压Vc(t)确定后就可设定开关功率变换器201的所有功率输出值,即控制信号CS1的最小与最大脉宽。然而,在最大输出功率(即控制信号CS1的最大脉宽)设定过程中,纹波电流608会对线输入电压Vx(t)的确定带来麻烦,这是因为纹波电流608在控制信号进入下一循环控制信号CS1之前不会下降。如果线输入电压Vx(t)由运行程序304确定,PFC与输出电压控制器202则按运行程序308来确定该输出电压Vx(t)。如果输出电压Vc(t)由运行程序304确定,PFC与输出电压控制器202则按运行程序308确定该线输入电压。开关“ON”状态持续时间在控制信号CS1的各周期内经由PFC与输出电压控制器202设定,因此,电感器电流iL升高时间间隔T1属于已知值。
通过在电感器回扫时间间隔T2内感应反馈信号VS(t),PFC与输出电压控制器202可确定来自反馈信号VS(t)的输出电压Vc(t)。在不止一个实例中,电感器回扫时间间隔T2未知。相应地,开关功率变换器201在时间间隔T1结束之后等待足够时间,以便使任意瞬时信号消失,然后确定来自反馈信号VS(t)的输出电压Vc(t)。正如前文所述,反馈信号VS(t)可以代表一个放大的输出电压Vc(t)。然而,在不止一个实例中,当利用输出电压Vc(t)确定运行程序308中的线输入电压Vx(t)时,放大比例由开关转换器201决定。相应地,除非有其他含义,确定输出电压Vc(t)包括确定一个放大的或者大约的输出电压Vc(t)。
通过在电感器回扫时间间隔T2内感应反馈信号Vx(t),PFC与输出电压控制器202确定来自反馈信号VS(t)的输出电压VS(t)。相应地,在不止一个实例中,确定来自反馈信号VS(t)(见下文说明)的线输入电压Vx(t)时,运行程序306可在运行程序304之前确定电感器回扫时间间隔T2。直接从反馈信号VS(t)确定线输入电压Vx(t),在电感器回扫时间间隔T2之后及可确定线输入电压Vx(t)的控制信号CS1进入下一个周期的T1时间间隔开始之前的任意时间,在控制信号CS1一个周期内均可感应到反馈信号VS(t)。在不止一个实例中,在波纹电流信号608消失后可感应到反馈信号VS(t),以便获得线输入电压Vx(t)的更准确的值,并在控制信号CS1开始下一个周期之前有足够的条件使开关功率变换器201执行运行程序308、310和312。在不止一个实例中,开关功率变换器201通过平均反馈信号Vx(t)在电感器回扫时间间隔T2之后即刻确定线输入电压VS(t)。对于输出电压Vc(t),在不止一个实例中提到,当利用线输入电压Vx(t)确定输出电压Vc(t)时,放大倍数可由开关功率变换器201确定。相应地,除非有其他含义,确定输出电压Vx(t)包括确定一个放大的或大约的线输入电压Vx(t)。
运行程序306可确定电感器回扫时间间隔T2。图7描绘了电感器回扫时间间隔确定模块的一个实例702(这里指的是“回扫时间模块”)。电感器回扫时间间隔T2可经由回扫时间模块702确定。例如,通过在时间间隔T2开始时感应反馈信号VS(t),检测在时间tx电压由VS(t)向Vx(t)的传输,并确定电感器电流iL上升时间间隔T1结束与电压在时间tx由VS(t)向Vx(t)传输之间的时间(此处“x”表示控制信号CS1某一特定周期的标记)。回扫时间模块702可分别由PFC与输出电压控制器202或PFC与输出电压控制器202全部或部分集成电路元件实施完成。
回扫时间模块702包括一个可将反馈信号VS(t)和预定的参照电压VREF0进行比较的比较模块704,并提供一个输出信号VSENSE_0。当电压VS(t)低于参照电压VREF0时,输出信号VSENSE_0由一个逻辑状态向另一个(在本例中为从HIGH到LOW)转换。因此,反馈信号VS(t)和VREF0的对比允许回扫时间模块702感应反馈信号VS(t)由输出电压Vc(t)水平向线输入电压Vx(t)水平转换。参照电压VREF0设定在Vc(t)与Vx(t)之间。在不止一个实例中,在电感器回扫时间间隔T2内参照电压VREF0设定在反馈信号VS(t)中任意瞬时电压以下,且足够高,以至于比较模块输出信号VSENSE_0值在电感器回扫时间间隔T2结束时迅速转换。在不止一个实例中,比较模块704分别由集成PFC与输出电压控制器202独立实施。在另一实例中,比较模块704与集成PFC与输出电压控制器202整合(即“单片”),传感器/转换器206将反馈信号VS(t)转化为PFC与输出电压控制器202可处理的水平。在本实例中,参照电压VREF0也被放大至与反馈信号VS(t)相同的水平。
比较模块704比较输出信号VSENSE_0由HIGH逻辑状态向LOW状态转换指的是电感器回扫时间间隔T2的结束。回扫时间模块702包括一个计数器/处理器706,在电感器回扫时间间隔T2开始时开始计数。电感器回扫时间间隔T2的开始是已知的,因为这个开始恰巧在时间间隔T1结束相吻合。PFC与输出电压控制器202可确定时间间隔的结束,当控制信号CS1使开关108变为“OFF”状态时就表示该时间间隔结束。在不止一个实例中,PFC与输出电压控制器202在电感器回扫时间间隔T2开始时产生一个启动信号,重新设定并启动计数器/处理器706。计数器/处理器706以时钟频率fCLK运行。该频率fCLK与设计选择相关。频率fCLK的较高值增加已确定的电感器回扫时间间隔T2的准确性。在不止一个实例中,频率fCLK为10MHz。计数器/处理器706在时间间隔T1结束时以频率fCLK开始计数,当信号VSENSE_0由HIGH状态转换为LOW状态时计数终止。被时钟频率fCLK分开的计数值表示回扫时间间隔T2。
运行程序308可确定任一种电压,即线输入电压Vx(t)或输出电压Vc(t),在运行程序304中利用已确定电压、电感器电流iL升高时间间隔T1和已确定电感器回扫时间间隔T2未确定这种电压。如果运行程序304可确定线输入电压Vx(t),在不止一个实例中,运行程序308根据方程[1]可确定输出电压Vc(t):
V C = V X · ( T 1 + T 2 ) T 2
方程[1].
其中,T1为电感器电流iL升高时间间隔,T2为电感器回扫时间间隔。方程[1]中电压Vx与电压Vc分别表示实际的、大约的、或抽样线输入电压Vx(t)和输出电压Vc(t)。
如果运行程序304可确定输出电压Vc(t),在不止一个实例中,运行程序308可根据方程[2]确定线输入电压Vx(t)。
V X = V C · T 2 ( T 1 + T 2 )
方程[2]
其中T1为电感器电流iL升高时间间隔,T2为电感器回扫时间间隔。方程[2]中电压Vx与电压Vc分别表示实际的、大约的、放大的或抽样线输入电压Vx(t)和输出电压Vc(t)。
运行程序310可确定开关控制信号CS1的脉宽PW和占空率D。PFC与输出电压控制器202控制控制信号CS1的脉宽PW与周期T。功率控制系统200表示一个非线性过程,这是因为开关功率变换器201输送的功率与线输入电压Vx(t)有关。PFC和输出电压控制器202控制着开关功率转换器201的过程,以将预期的能量转送给电容器106。所需的能量取决于负载112的电压和电流要求。控制信号CS1的占空比设定后可维持理想的输出电压VC(t)和负载电压VL(t),并且在不止一个实例中,控制信号CS1的占空率D等于[VL(t)/(VC(t)+VL(t))]。当线输入电压Vx(t)升高时,能量传递在这一时段也增大。
为了调节传输的能量并将功率因数保持在接近1,PFC和输出电压控制器202改变着控制信号CS1的周期,使输入电流iL能够追踪到输入电压Vx(t)中的变化,并使输出电压VC(t)保持恒定。因此,当线输入电压Vx(t)升高时,PFC与输出电压控制器202延长控制信号CS1周期TT(见图6),而当线输入Vx(t)下降,PFC与输出电压控制器202缩短控制信号CS1的周期TT(见图6)。同时,控制信号CS1的脉冲宽度PW经过调节,以保持恒定的占空比D,并使电容器电压VC(t)保持恒定。在至少一个实施例中,PFC和输出电压控制器202以远高于输入电压Vx(t)的频率更新控制信号CS1。线输入电压Vx(t)的频率一般为50至60Hz。例如,控制信号CS1的频率1/T介于20kHz与150kHz之间。等于或高于20kHz的频率避免了音频干扰,等于或低于150kHz的频率避免了有较大影响的开关无效性,同时又能保持良好的功率因数校正,比如0.9和1之间的功率因数校正,且电容器电压VC(t)保持近似的恒定值。
图8描绘了PFC与输出电压控制器800,这表示的是PFC与输出电压控制器202的一个实例。PFC和输出电压控制器800产生控制信号CS1,以控制开关功率变换器201的非线性能量转移过程。。非线性Δ-∑模块802接收能量输入信号E(n),表示在控制信号CS1的下一个周期实现了理想的能量转移,可维持输出电压Vc(t)的理想值。非线性Δ-∑调节器802处理该输入信号E(n),并产生量化器输出信号QPW。非线性Δ-∑模块802的非线性反馈模型803代表开关功率变换器201的一个非线性能量转移过程,因此数字转换器输出信号QPW表示控制信号CS1的脉宽,该脉宽符合电容器106能量转移要求,以维持一个大体恒定的输出电压Vc(t)。PFC与输出电压控制器800与非线性反馈模型803的典型实例在发明人John L.Melanson与2007年9月30日提交的题为“利用带有非线性处理模型的非线性Δ-∑模块的控制系统”(Control System Using A Nonlinear Delta-Sigma ModulatorWith Nonlinear Process Modeling)的美国专利申请号11/865,032文件(Melanson I)中有详细的说明,并在Cirrus Logic公司代理发明人John L.Melanson申请提交的题为“利用带有非线性功率转换过程模型的非线性Δ-∑模块的控制系统”(Power ControlSystem Using a Nonlinear Delta-Sigma Modulator With NonlinearPower Conversion Process Modeling)美国专利申请文件和律师诉讼事件编号1745-CA(Mealson II)文件中亦有详细描述。Melanson I与Melanson II以全文引用方式并入本文。
在至少一个实施例中,输入信号Vx(t)是整流电压,因此随着时间变化而上升和下降。PFC与输出电压控制器800用于跟踪线输入信号Vx(t),并调整控制信号CS1周期,随着线输入信号Vx(t)增强而延长,随着线输入信号Vx(t)减弱而缩短。为了确定控制信号CS1的各个周期,PFC与输出电压控制器800包括一个输入信号评估器805,用以评估控制信号CS1各循环线输入电压Vx(t)的瞬时值,并产生一个评估电压值EV(n)。在不止一个实例中,输入信号评估器805执行运行程序304从反馈信号Vx(t)确定线输入电压VS(t)。PFC与输出电压控制器800包括一个传统Δ-∑模块804,可处理评估电压值EV(n),并将该评估电压值EV(n)转换为一个数字转换器输出信号QT。量化器输出信号QT代表一个控制信号CS1周期,用于输入电压Vx(t)的估算值。常规Δ-∑调节器的典型设计和运行请参见Schreier和Temes的著作“了解Δ-∑数据转换器”(Understanding Delta-Sigma Data Converters),IEEE Press,2005,ISBN 0-471-46585-2。
PFC与输出电压控制器800包括一个脉宽模块806,可将数字转换器输出信号QPW(n)转换为一个脉宽和一个数字转换器输出信号QT(n),从而进入控制信号CS1的一个周期中,此处n可为表示相关变量的一个特定瞬时值的编号。为了进行此转换,在至少一个实施例中,脉冲宽度调节器806包括一个计数器。量化器输出信号QPW(n)显示脉冲控制信号CS1的计数,而量化器输出信号QT(n)显示控制信号CS1的周期计数。脉冲宽度调节器806将量化器输出信号QPW(n)和量化器输出信号QT(n)的计数转换为控制信号CS1的相应脉冲宽度和周期。在至少一个实例中,PFC与输出电压控制器800利用数字技术实现运行。在其他实例中,PFC与输出电压控制器800可利用类似或混合数字和类比技术实现运行。
参照图2和图8可看出,当非线性Δ-∑模块802用作PFC与输出电压控制器部件(例如PFC与输出电压控制器800(图8))时,为了维持功率因数校正功能,能量输入信号E(n)与(1-(Vx(t)/VC(t))·K呈一定比例。”K”为常量,指的是负载112要求的功率,由一个按比例集成代偿电路(未显示)确定,该代偿电路将输出电压Vc(t)作为参照电压,确定一个同时具有整合输出电压误差和按比例分配输出电压误差两种功能的反馈信号。比例积分补偿器的一个例子请参见Alexander 
Figure G2008800145338D00191
的著作“功率因数校正整流器的快速电压环路的补偿器设计与稳定性评价”(Compensator Design and Stability Assessment for Fast Voltage Loopsof Power Factor Correction Rectifiers),IEEE Transactions on PowerElectronics(IEEE电力电子学汇刊),第22卷,第5册,2007年9月,以及Erickson和
Figure G2008800145338D00192
的著作,“功率电子基础”(Fundamentals of Power Electronics),第2版,Boston,MA:Kluwer,2000年中均对按比例集成代偿电路作了说明,以上两者均以全文引用方式并入本文。在不止一个实例中,能量输入信号E(n)受到限制,以确保开关功率变换器201以不连续电流方式运行。
运行程序312向开关功率变换器201提供开关控制信号CS1。运行程序312后,PFC与输出电压调节程序300返回运行程序302,进入下一个控制喜好CS1周期。
运行程序304与306可利用各种系统和处理程序进行确定。图9描绘了功率控制系统900,该系统为功率控制系统150的一个实例。功率控制系统包括PFC与输出电压控制器904,PFC与输出电压控制器904根据PFC与输出电压调节程序300运行。然而,运行程序304与306特定执行有别于结合了功率控制系统200的PFC与输出电压调解程序300。开关908是一个FET,同时控制信号CS1应用于一个门开关908。可对开关108的门电压Vg实施监测,这一电压也可用于确定电感器回扫时间间隔T2。
在不止一个实例中,运行程序306通过监测开关908的门电压特征来确定电感器回扫时间间隔T2的终止,并检测电感器回扫时间间隔T2的终止。图10表1000描绘了反馈信号VS(t)与相应的理论与实际门电压Vg和实际电流ig。参照图9和10可看出,在理想状态下,控制信号CS1各周期内门电流Vg具有一个逻辑为HIGH的脉冲1002,对应于开关908的开启ON时间,否则就是逻辑LOW。同样,在理想状态下,控制信号CS1各周期内的实际电流具有一个简短脉冲1004为开关908带上门电电荷,还具有一个简短脉冲1006,为开关908去门电荷。理想条件下,脉冲1004和1006是门电流ig的唯一脉冲。但是,开关108具有一个寄生栅极-漏极电容914。如果在电感器回扫时间间隔T2终止时开关节点的反馈信号VS(t)由电压Vc(t)转化为电压Vx(t),寄生电容导致产生瞬时电压信号1008和瞬时电流信号1010。(图10中瞬时信号不必要进行拉取放大,瞬时信号的放大倍数会随着用于实施开关功率变换器906功能的电子元件不同而变化。)在不止一个实例中,瞬时电流信号、瞬时电压信号或者二者均可通过PFC与输出电压控制器904的实例分别检测到。因此,通过确定电感器回扫时间间隔的起始,并通过确定信号消逝时间直至瞬时信号被检测到,运行程序306中的PFC与电压输出控制器904可确定电感器回扫时间间隔T2。
在不止一个实例中,结合功率控制系统900的运行程序304时,线输入电压Vx(t)可直接通过检测来自节点916处反馈信号的线输入电压Vx(t)得到确定,或者如前所述,由反馈信号VS(t)进行确定。在另一实例中,为了执行运行程序结合功率控制系统900的运行程序304,输出电压Vc(t)可通过直接检测来自节点918处反馈信号的输出电压Vc(t)得到确定,或者如前所述,由反馈信号VS(t)进行确定。来自开关节点的虚线和节点916与节点918表示,通过利用任意一个反馈信号,即Vx(t)、Vc(t)或VS(t),运行程序304可得到执行。输出电压Vc(t)可用各种方法进行检测,其中包括在美国专利申请文件“运用数字FIR过滤输出电压抽样技术的功率因数校正”(Power Factor Correction Controller WithDigital FIR Filter Output Voltage Sampling)(发明人为John L.Melanson,由Cirrus Logic公司代理)和律师诉讼事件编号1760-CA(Melanson III)以及美国专利申请文件“功率供应Dc电压抵消检测器”(Power Supply Dc Voltage Offset Detector)(发明人为John L.Melanson,由Cirrus Logic公司代理)与律师诉讼事件编号1761-CA(Melanson IV)的典型实例中描述的方法。Melanson III与Melanson IV因全文引用方式并入本文。
运行程序308-312由上述PFC与输出电压控制器904结合PFC与输出电压控制器202共同执行。
图11描绘了使用瞬时信号1008确定电感器回扫时间间隔T2的一个典型电感器回扫时间间隔确定模块(回扫时间模块)1100。在不止一个实例中,PFC与输出电压控制器906包括回扫时间模块1100。回扫时间模块1100可检测门电压Vg,比较模块1102可比较门电压与参照电压VREF1。参照电压VREF1要经过预先确定,并设定在电感器回扫时间间隔T2内稳定状态门电压Vg和瞬时信号1008最小电压之间。在不止一个实例中,VREF1被设为-0.5V。当反馈信号VS(t)由电压Vc(t)向电压Vx(t)转换时,瞬时信号1008的门电Vg降至参照电压VREF1以下,比较模块1102的输出信号VSENSE_1由HIGH逻辑状态变为LOW逻辑状态。
比较模块1102的比较模块输出信号VSENSE_1由HIGH逻辑状态向LOW状态的转换表示电感器回扫时间间隔T2的终止。回扫时间模块1100包括计数器/处理器706,可在电感器回扫时间间隔T2起始时开始计数。如前所述,电感器回扫时间间隔T2是已知的,因为T2起始正好与电感器电流iL升高时间间隔T1吻合。PFC与输出电压控制器904确定时间间隔T1的终止,当控制信号CS1导致开关908处于关闭(OFF)状态时这一事件就会发生。在不止一个实例中,PFC与输出电压控制器906在电感器回扫时间间隔T2起始时产生一个“START”信号,以重新设定计数器/处理器706。利用输入信号VSENSE_1,如前所述,计数器/处理器706确定电感器回扫时间间隔T2。
图12描绘了一个功率控制系统1200,该系统为功率控制系统150的一个实例。功率控制系统1200包括PFC与输出电压控制器1204,PFC与输出电压控制器1204按照PFC与输出电压调节程序300实施运行。然而,运行程序304与306的执行有别于结合功率控制系统200的PFC与输出电压调节程序300的应用过程。
参照图3和图12可看出,运行程序306利用与电感器110磁偶联的复卷绕组1206感应电感器电压VL(t)。电感器110表示一个初级绕组,电感器电压VP(t)直接与电感器电流iL成一定比例。因此,电感器回扫时间间隔T2可直接通过感应电感器电压VP(t)得到确定,电压与电感器电流iL下降相对应。在不止一个实例中,PFC与输出电压孔子和气1204包括两个终端,可接收由复卷绕组1206产生的反馈信号VS(t)。
电感器110诱导复卷绕组1206中的复卷电压VS(t),该电压与电感器电压VP(t)的倒数成一定比例关系。复卷电压VS(t)表示传给PFC与输出电压控制器1204的反馈信号。该反馈信号VS(t)与电感器电压相关,相关方程见方程[3]:
V P ( t ) = - V S ( t ) · n s n p = - V S ( t ) · k
方程[3].
其中,“nS”为复卷绕组1206的绕卷数,“nP”为电感器110中的绕卷数,且k=nS/nP。“nP”的值由电感器110选择设定。“nS”值可被设定以便PFC与输出电压控制器1204可不经任何转换直接接收反馈信号VS(t)。
参照图3、图6、图11、图12和图13可看出,在时间间隔T1内开关108导电时,反馈信号VS(t)等于-Vx(t)·k。因此,运行程序304可通过在时间间隔T1内感应反馈信号Vx(t)和经-k将反馈信号加以分类来确定线输入电压VS(t)。在电感器回扫时间间隔T2期间,按照方程[4]反馈信号VS(t)与输出电压Vc(t)和线输入电压成相关关系。
VS(t)=(Vc(t)-Vx(t))·k  方程[4]
图13描绘了执行运行程序306的电感器回扫间隔确定模块。回扫时间模块1300接收反馈信号VS(t),比较模块1302比较反馈信号与参照电压VREF2。并确定时间间隔T1终止和反馈信号VS(t)转换至VREF2以下之间的时间间隔,这里参照电压VREF2设定在(Vc(t)-Vx(t))·k和-Vx(t)之间。
运行程序308-312由PFC与输出电压控制器1204结合PFC与输出电压控制器202共同执行。
图14描绘了功率控制系统1400,该系统为图1A所示功率控制系统的一个实例。功率控制系统1400包括一个富余性与可靠性模块1406,属于PFC与输出电压控制器1404的元件,可向功率控制系统1400提供可靠性和/或富余性。在不止一个实例中,功率控制系统1400可采用与功率控制系统200、900、1100相同的方式发挥功能,并得以实施,只是功率控制系统1400包含更多反馈信号,以提供备份和可靠性。在不止一个实例中,功率控制系统1400可提供一个诸如400V的高输出电压Vc(t)。高输出电压可引起特定安全性问题和硬件运行失败问题。因此,除了按照前述任一实例确定输出电压Vc(t)与线输入电压Vx(t)之外,利用如前所述的复卷绕组还可使用附加的反馈信号,例如直接感应节点1408的线输入电压Vx(t)、节点1410的输出电压Vc(t)、来自开关节点的线输入电压Vx(t)和/或输出电压Vc(t)和/或经过电感器110的电感器电压等。
额外感应的富余参数可利用期望的传感器/换算器206经过换算得出,可靠性与富余性模块1406可将线输入电压Vx(t)和输出电压Vc(t)的值比作由PFC与输出电压调节程序300确定的相应值。可靠性与富余性模块1406包括逻辑状态,如如果实际值与预定的极限值不一致,那么就会关闭该功率控制系统1400。在不止一个实例中,如果PFC与输出电压调节程序300无法确定输出电压VC(t)或线输入电压Vx(t),可靠性与富余性模块1406可将额外感应的值用作替代值,这样就可提供富余性。
因此,在控制信号的单个周期内,运用接收自开关功率变换器的单个反馈信号,PFC与输出电压控制器获得开关功率变换器的线输入电压和输出电压。
尽管已经对本发明作了详细描述,但应明白,在不偏离所附权利要求中定义的本发明之范围和精神情况下仍可以进行多种变化、替代和更改。

Claims (22)

1.一种功率因数校正(PFC)控制器,可控制功率因数校正并调节开关功率变换器输出电压,其中,开关功率变换器包括一个与线输入电压节点偶联的电感器和一个与该电感器偶联的开关,PFC控制器组成:
一个输入设备,可接收来自开关功率变换器的反馈信号;其PFC控制器的配置使之能够:
(a)根据反馈信号确定至少:(i)一个支流输入电压和(ii)开关功率变换器一个输出电压二者至少一个参数;
(b)向开关提供控制信号,因此,在开关的各周期开关功率变换器就会对控制信号作出回应,当开关闭合时,首次间隔电感器电流升高,开关断开时,电感器回扫时间间隔电感器电流下降;
(c1)其中,如果输入电压在(a)中国得到确定,PFC控制器可再用于确定开关功率变换器的输出电压,其依据为线输入电压、电感器回扫时间间隔和首次时间间隔;和
(c2)其中,如果开关功率变换器的输出电压在(a)中得到确定,PFC控制器还可用于确定线输入电压,其依据为输出电压、电感器回扫时间间隔和首次时间间隔。
2.根据权利要求1所述的PDF控制器,其中用于确定开关功率变换器输出电压的PFC控制器按照以下方程运行:
V C = V X · ( T 1 + T 2 ) T 2
其中,T1为首次时间间隔,T2为电感器回扫时间间隔,Vc为输出电压,VX为线输入电压。
3.根据权利要求1所述的PFC控制器,其中此PFC控制器可按照以下方程用于确定开关功率变换器的线输入电压:
V X = V C · T 2 ( T 1 + T 2 )
其中,T1为首次时间间隔,T2为电感器回扫时间间隔,Vc为输出电压,VX线输入电压。
4.根据权利要求1所述的PFC控制器,其中PFC控制器可用用于确定电感器回扫时间间隔。
5.根据权利要求4所述的PFC控制器,其中开关包括一个电场效应转换器,而且该PFC与输出电压控制器可用于在开关门感应电压瞬时信号,以确定电感器回扫时间间隔T2
6.根据权利要求1所述的PFC控制器,其中在PFC控制器和开关功率变换器运行期间,传感器感应经过电感器的线输入电压。
7.根据权利要求6所述的PFC控制器,其中传感器还包括一个复卷绕组,与该电感器磁偶联,可感应经过电感器的电压。
8.根据权利要求1所述的PFC控制器,其中此PFC控制器还可用于根据线输入电压、传感器回扫时间间隔和首次时间间隔确定开关功率变换器的输出电压,还可根据输出电压、电感器回扫时间间隔和首次时间间隔确定线输入电压。
9.根据权利要求1所述的PFC控制器,其中此PFC控制器包括一个集成电路,该电路具有大量连接点,可提供外部链接,其中PFC控制器的管脚包括一个元件组中一个元件的连接:来自反馈信号的开关功率变换器(i)线输入电压和(ii)输出电压。
10.一个PFC控制器,其可控制功率因数校正并调节开关功率变换器的输出电压,其中,开关功率变换器包括一个与线输入电压节点偶联的电感器和一个与该电感器偶联的开关,PFC控制器包括:
一个输入设备,可接收来自开关空滤交换器的反馈信号;
其PFC控制器的配置使之能够:
确定一个线输入电压;
向开关提供控制信号,因此,在开关的各个周期,开关功率变换器就会对控制信号作出回一个,当开关闭合时首次时间间隔电感器电流升高,开关断开时电感器回扫时间间隔电感器电流下降;和
确定开关功率变换器的输出电压,其依据为线输入电压、电感器回扫时间间隔和首次时间间隔。
11.一个PFC控制器,其可控制功率因数校正并调节开关功率变换器的输出电压,其中,开关功率变换器包括一个与线输入电压节点偶联的电感器和一个与该电感器偶联的开关,PFC控制器包括:
一个输入设备,可接收来自开关空滤交换器的反馈信号;
其中PFC控制器用于:
确定来一个自反馈信号的开关功率变换器线输入电压;
向开关提供控制信号,因此,在开关的各个周期,开关功率变换器就会对控制信号作出回一个,当开关闭合时首次时间间隔电感器电流升高,开关断开时电感器回扫时间间隔电感器电流下降;和
确定开关功率变换器的输出电压,其依据为线输入电压、电感器回扫时间间隔和首次时间间隔。
12.一种控制功率因数并调节开关功率变换器输出电压的方法,其中开关功率变换器包括一个与线输入电压节点偶联的电感器和一个与该电感器偶联的开关,本方法包括:
接收来自开关功率变换器的反馈信号;
(a)至少确定:来自反馈信号的开关功率变换器(i)一个支流输入电压和(ii)输出电压二者至少一个参数;
(b)向开关提供控制信号,因此,在开关的各周期开关功率变换器就会对控制信号作出回应,当开关闭合时,首次间隔电感器电流升高,开关断开时,电感器回扫时间间隔电感器电流下降;和
(c1)其中,如果输入电压在(a)中国得到确定,PFC控制器可再用于确定开关功率变换器的输出电压,其依据为线输入电压、电感器回扫时间间隔和首次时间间隔;和
(c2)其中,如果开关功率变换器的输出电压在(a)中得到确定,PFC控制器还可用于确定线输入电压,其依据为输出电压、电感器回扫时间间隔和首次时间间隔。
13.权利要求12所述的方法还包括:
按照下列方程确定开关功率变换器的输出电压:
V C = V X · ( T 1 + T 2 ) T 2
其中T1为首次时间间隔,T2为电感器回扫时间间隔,Vc为输出电压,VX为线输入电压。
14.权利要求12所述的方法还包括:
按照下列方程确定开关功率变换器的线输入电压:
V X = V C · T 2 ( T 1 + T 2 )
其中,T1为首次时间间隔,T2为电感器回扫时间间隔,Vc为输出电压,VX为线输入电压。
15.权利要求12所述的方法还包括:
确定电感器回扫时间间隔。
16.根据权利要求15所述的方法,其中所述开关包括一个场效应晶体管,该方法还包括:
感应开关的门瞬时信号,确定电感器回扫时间间隔T2
17.权利要求12所述的方法还包括:
通过与电感器磁偶联的复卷绕组产生反馈信号。
18.权利要求12所述的方法还包括:
感应经过电感器的线输入电压。
19.根据权利要求18所述的方法,其中感应经过电感器线输入电压的方法包括:
从电感器电流诱导复卷绕组电流;
感应诱导电流;
将感应的诱导电流转换为与该线输入电压对应的电压;
感应与线输入电压对应的电压。
20.根据权利要求12所述的方法,其中所述开关功率变换器还包括一个与电感器偶联的电容器、开关盒一个输入电压节点,该方法还包括:
感应经过电感器的开关功率变换器输出电压。
21.一种控制功率因数校正并调节开关功率变换器输出电压的方法,其中,该开关功率变换器包括一个与线输入电压节点偶联的电感器和与该电感器偶联的开关,本方法包括:
接收来自开关功率变换器的反馈信号;
确定一个线输入电压;
向开关提供控制信号,因此,在开关的各周期开关功率变换器就会对控制信号作出回应,当开关闭合时,首次间隔电感器电流升高,开关断开时,电感器回扫时间间隔电感器电流下降;和
利用线输入电压、电感器回扫时间间隔和首次时间间隔确定开关功率变换器的输出电压。
22.一种控制功率因数校正并调节开关功率变换器输出电压的方法,其中,该开关功率变换器包括一个与线输入电压节点偶联的电感器和与该电感器偶联的开关,本方法包括:
接收来自开关功率变换器的反馈信号;
确定一个来自反馈信号的开关功率变换器输出电压;
向开关提供控制信号,因此,在开关的各周期开关功率变换器就会对控制信号作出回应,当开关闭合时,首次间隔电感器电流升高,开关断开时,电感器回扫时间间隔电感器电流下降;和
利用线输入电压、电感器回扫时间间隔和首次时间间隔确定开关功率变换器的输出电压。
CN2008800145338A 2007-05-02 2008-05-02 可减少反馈信号的功率因数校正控制器 Expired - Fee Related CN101720526B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US91554707P 2007-05-02 2007-05-02
US60/915,547 2007-05-02
PCT/US2008/062387 WO2008137656A2 (en) 2007-05-02 2008-05-02 Power factor correction controller with feedback reduction

Publications (2)

Publication Number Publication Date
CN101720526A true CN101720526A (zh) 2010-06-02
CN101720526B CN101720526B (zh) 2013-10-23

Family

ID=39564796

Family Applications (5)

Application Number Title Priority Date Filing Date
CN2008800230275A Active CN101743683B (zh) 2007-05-02 2008-04-22 功率因数校正(pfc)控制器及使用有限状态机调节pwm控制信号工作周期的方法
CN200880014472.5A Expired - Fee Related CN101675593B (zh) 2007-05-02 2008-05-02 使用带非线性过程模型的非线性△∑调节器的控制系统
CN200880014453A Pending CN101675577A (zh) 2007-05-02 2008-05-02 高效生成开关控制信号周期的开关功率变换器
CN200880014462A Pending CN101730972A (zh) 2007-05-02 2008-05-02 具有在低功率需求水平控制脉宽变异性开关的开关整流器
CN2008800145338A Expired - Fee Related CN101720526B (zh) 2007-05-02 2008-05-02 可减少反馈信号的功率因数校正控制器

Family Applications Before (4)

Application Number Title Priority Date Filing Date
CN2008800230275A Active CN101743683B (zh) 2007-05-02 2008-04-22 功率因数校正(pfc)控制器及使用有限状态机调节pwm控制信号工作周期的方法
CN200880014472.5A Expired - Fee Related CN101675593B (zh) 2007-05-02 2008-05-02 使用带非线性过程模型的非线性△∑调节器的控制系统
CN200880014453A Pending CN101675577A (zh) 2007-05-02 2008-05-02 高效生成开关控制信号周期的开关功率变换器
CN200880014462A Pending CN101730972A (zh) 2007-05-02 2008-05-02 具有在低功率需求水平控制脉宽变异性开关的开关整流器

Country Status (7)

Country Link
US (15) US7554473B2 (zh)
EP (5) EP2153511B1 (zh)
JP (1) JP2010526496A (zh)
CN (5) CN101743683B (zh)
AT (1) ATE495569T1 (zh)
DE (1) DE602008004510D1 (zh)
WO (7) WO2008137315A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104038043A (zh) * 2013-03-05 2014-09-10 立锜科技股份有限公司 Pfc转换器的电源管理ic、控制方法、检测器及方法
CN105265017A (zh) * 2013-03-11 2016-01-20 皇家飞利浦有限公司 使用补偿电流控制的供电电流变化的减小
CN105703617A (zh) * 2010-08-18 2016-06-22 芬斯克斯有限公司 多路径功率因数校正的方法及功率变换器

Families Citing this family (420)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7812576B2 (en) 2004-09-24 2010-10-12 Marvell World Trade Ltd. Power factor control systems and methods
US8672732B2 (en) 2006-01-19 2014-03-18 Schneider Electric It Corporation Cooling system and method
WO2007105189A1 (en) * 2006-03-10 2007-09-20 Commergy Technologies Limited A power converter
US7848117B2 (en) 2007-01-22 2010-12-07 Power Integrations, Inc. Control arrangement for a resonant mode power converter
US7911812B2 (en) * 2007-01-22 2011-03-22 Power Integrations, Inc. Control arrangement for a PFC power converter
US7885085B2 (en) * 2007-01-22 2011-02-08 Power Integrations, Inc. Cascaded PFC and resonant mode power converters
US8018171B1 (en) 2007-03-12 2011-09-13 Cirrus Logic, Inc. Multi-function duty cycle modifier
US7852017B1 (en) * 2007-03-12 2010-12-14 Cirrus Logic, Inc. Ballast for light emitting diode light sources
US8723438B2 (en) * 2007-03-12 2014-05-13 Cirrus Logic, Inc. Switch power converter control with spread spectrum based electromagnetic interference reduction
US8076920B1 (en) 2007-03-12 2011-12-13 Cirrus Logic, Inc. Switching power converter and control system
US7288902B1 (en) 2007-03-12 2007-10-30 Cirrus Logic, Inc. Color variations in a dimmable lighting device with stable color temperature light sources
US7667408B2 (en) 2007-03-12 2010-02-23 Cirrus Logic, Inc. Lighting system with lighting dimmer output mapping
US7969756B1 (en) * 2007-04-16 2011-06-28 Lockheed Martin Corporation Real-time switching regulator monitor
US7554473B2 (en) 2007-05-02 2009-06-30 Cirrus Logic, Inc. Control system using a nonlinear delta-sigma modulator with nonlinear process modeling
US20090138313A1 (en) 2007-05-15 2009-05-28 American Power Conversion Corporation Methods and systems for managing facility power and cooling
JP4577525B2 (ja) 2007-05-31 2010-11-10 東芝ライテック株式会社 照明装置
US8102127B2 (en) 2007-06-24 2012-01-24 Cirrus Logic, Inc. Hybrid gas discharge lamp-LED lighting system
JP5432901B2 (ja) * 2007-08-14 2014-03-05 ラム インク モーターの力率補正装置および方法
US7895003B2 (en) 2007-10-05 2011-02-22 Emerson Climate Technologies, Inc. Vibration protection in a variable speed compressor
US20090241592A1 (en) * 2007-10-05 2009-10-01 Emerson Climate Technologies, Inc. Compressor assembly having electronics cooling system and method
US8950206B2 (en) 2007-10-05 2015-02-10 Emerson Climate Technologies, Inc. Compressor assembly having electronics cooling system and method
US8418483B2 (en) 2007-10-08 2013-04-16 Emerson Climate Technologies, Inc. System and method for calculating parameters for a refrigeration system with a variable speed compressor
US8448459B2 (en) 2007-10-08 2013-05-28 Emerson Climate Technologies, Inc. System and method for evaluating parameters for a refrigeration system with a variable speed compressor
US9541907B2 (en) 2007-10-08 2017-01-10 Emerson Climate Technologies, Inc. System and method for calibrating parameters for a refrigeration system with a variable speed compressor
US8459053B2 (en) 2007-10-08 2013-06-11 Emerson Climate Technologies, Inc. Variable speed compressor protection system and method
US8539786B2 (en) 2007-10-08 2013-09-24 Emerson Climate Technologies, Inc. System and method for monitoring overheat of a compressor
US8488353B2 (en) * 2007-10-31 2013-07-16 International Rectifier Corporation Control integrated circuit with combined output and input
US7728571B2 (en) * 2007-11-06 2010-06-01 Richtek Technology Corporation, R.O.C. Load-dependent frequency jittering circuit and load-dependent frequency jittering method
US8344639B1 (en) * 2008-11-26 2013-01-01 Farhad Bahrehmand Programmable LED driver
US7804697B2 (en) * 2007-12-11 2010-09-28 Cirrus Logic, Inc. History-independent noise-immune modulated transformer-coupled gate control signaling method and apparatus
US8125806B2 (en) * 2008-01-24 2012-02-28 Continental Automotive Systems Us, Inc. Multi-stage switching power supply
EP2083511B1 (fr) * 2008-01-25 2014-01-22 Actaris SAS Alimentation à pile pour èmetteur radiofréquences
US8008898B2 (en) 2008-01-30 2011-08-30 Cirrus Logic, Inc. Switching regulator with boosted auxiliary winding supply
US8022683B2 (en) 2008-01-30 2011-09-20 Cirrus Logic, Inc. Powering a power supply integrated circuit with sense current
US7755525B2 (en) * 2008-01-30 2010-07-13 Cirrus Logic, Inc. Delta sigma modulator with unavailable output values
US8576589B2 (en) 2008-01-30 2013-11-05 Cirrus Logic, Inc. Switch state controller with a sense current generated operating voltage
US20090218997A1 (en) * 2008-02-29 2009-09-03 Hey George M Power supply circuit
WO2009115987A1 (en) * 2008-03-19 2009-09-24 Nxp B.V. A controller and method of operating a controller
US8363439B2 (en) * 2008-04-22 2013-01-29 Flextronics Ap, Llc Efficiency improvement in power factor correction
US8085024B2 (en) * 2008-04-29 2011-12-27 Exar Corporation Self-tuning digital current estimator for low-power switching converters
US8432108B2 (en) * 2008-04-30 2013-04-30 Lsi Industries, Inc. Solid state lighting, driver circuits, and related software
US7952293B2 (en) * 2008-04-30 2011-05-31 Lsi Industries, Inc. Power factor correction and driver circuits
US20090296448A1 (en) * 2008-05-30 2009-12-03 Fu Lung Hsueh Diode as voltage down converter for otp high programming voltage applications
JP5550640B2 (ja) * 2008-06-13 2014-07-16 ザ リージェンツ オブ ザ ユニバーシティ オブ コロラド,ア ボディー コーポレイト 電力コンバータの監視および制御
US8102164B2 (en) 2008-06-19 2012-01-24 Power Integrations, Inc. Power factor correction converter control offset
US8008902B2 (en) * 2008-06-25 2011-08-30 Cirrus Logic, Inc. Hysteretic buck converter having dynamic thresholds
US8344707B2 (en) 2008-07-25 2013-01-01 Cirrus Logic, Inc. Current sensing in a switching power converter
US8279628B2 (en) 2008-07-25 2012-10-02 Cirrus Logic, Inc. Audible noise suppression in a resonant switching power converter
JP2010035271A (ja) * 2008-07-25 2010-02-12 Sanken Electric Co Ltd 電力変換装置
US8212491B2 (en) 2008-07-25 2012-07-03 Cirrus Logic, Inc. Switching power converter control with triac-based leading edge dimmer compatibility
US8102679B2 (en) * 2008-08-15 2012-01-24 Infineon Technologies Ag Utilization of a multifunctional pin to control a switched-mode power converter
US8487546B2 (en) 2008-08-29 2013-07-16 Cirrus Logic, Inc. LED lighting system with accurate current control
US8179110B2 (en) 2008-09-30 2012-05-15 Cirrus Logic Inc. Adjustable constant current source with continuous conduction mode (“CCM”) and discontinuous conduction mode (“DCM”) operation
US8222872B1 (en) 2008-09-30 2012-07-17 Cirrus Logic, Inc. Switching power converter with selectable mode auxiliary power supply
US8829811B2 (en) * 2008-11-18 2014-09-09 Cypress Semiconductor Corporation Compensation method and circuit for line rejection enhancement
US8922189B2 (en) * 2008-11-18 2014-12-30 Texas Instruments Incorporated Controlled on-time buck PFC
EP2371052A1 (en) * 2008-12-01 2011-10-05 Koninklijke Philips Electronics N.V. Emi reduction circuit for active pfc converter
US8288954B2 (en) 2008-12-07 2012-10-16 Cirrus Logic, Inc. Primary-side based control of secondary-side current for a transformer
US9253843B2 (en) 2008-12-12 2016-02-02 02Micro Inc Driving circuit with dimming controller for driving light sources
CN102014540B (zh) * 2010-03-04 2011-12-28 凹凸电子(武汉)有限公司 驱动电路及控制光源的电力的控制器
US8508150B2 (en) * 2008-12-12 2013-08-13 O2Micro, Inc. Controllers, systems and methods for controlling dimming of light sources
US8330388B2 (en) * 2008-12-12 2012-12-11 O2Micro, Inc. Circuits and methods for driving light sources
US8044608B2 (en) 2008-12-12 2011-10-25 O2Micro, Inc Driving circuit with dimming controller for driving light sources
US9030122B2 (en) 2008-12-12 2015-05-12 O2Micro, Inc. Circuits and methods for driving LED light sources
US8299722B2 (en) 2008-12-12 2012-10-30 Cirrus Logic, Inc. Time division light output sensing and brightness adjustment for different spectra of light emitting diodes
US8378588B2 (en) 2008-12-12 2013-02-19 O2Micro Inc Circuits and methods for driving light sources
US8362707B2 (en) 2008-12-12 2013-01-29 Cirrus Logic, Inc. Light emitting diode based lighting system with time division ambient light feedback response
US8339067B2 (en) * 2008-12-12 2012-12-25 O2Micro, Inc. Circuits and methods for driving light sources
US9232591B2 (en) 2008-12-12 2016-01-05 O2Micro Inc. Circuits and methods for driving light sources
US9386653B2 (en) 2008-12-12 2016-07-05 O2Micro Inc Circuits and methods for driving light sources
US8076867B2 (en) 2008-12-12 2011-12-13 O2Micro, Inc. Driving circuit with continuous dimming function for driving light sources
US7994863B2 (en) 2008-12-31 2011-08-09 Cirrus Logic, Inc. Electronic system having common mode voltage range enhancement
CN102272686B (zh) * 2009-01-07 2015-04-01 宝威电源意大利股份公司 从可再生能源提取电功率的方法和系统
US20100171481A1 (en) * 2009-01-08 2010-07-08 Liu da-yi Digital power control device
US8553431B2 (en) * 2009-02-03 2013-10-08 Iwatt Inc. Switching power converter with load impedance detection
US8203287B2 (en) * 2009-02-24 2012-06-19 Richard Landry Gray Pulse width modulation control device
US8237419B2 (en) * 2009-02-27 2012-08-07 Schneider Electric USA, Inc. Microcontroller operated current limited switching power supply for circuit protective devices
US9006992B2 (en) * 2009-04-11 2015-04-14 Innosys, Inc. Low current thyristor-based dimming
KR101670994B1 (ko) * 2009-04-27 2016-11-01 페어차일드코리아반도체 주식회사 역률 보상 회로 및 역률 보상 회로의 구동 방법
DE102009003852B4 (de) * 2009-04-30 2013-05-16 Lear Corporation Gmbh Gleichspannungswandler
US8482223B2 (en) 2009-04-30 2013-07-09 Cirrus Logic, Inc. Calibration of lamps
CN101888734B (zh) * 2009-05-13 2014-07-16 通用电气公司 带升/降压功率因数校正dc-dc转换器的电子镇流器
US8228046B2 (en) * 2009-06-16 2012-07-24 American Power Conversion Corporation Apparatus and method for operating an uninterruptible power supply
US8729729B2 (en) * 2009-06-18 2014-05-20 Mikhail Fridberg Method and apparatus for driving low-power loads from AC sources
US8248145B2 (en) 2009-06-30 2012-08-21 Cirrus Logic, Inc. Cascode configured switching using at least one low breakdown voltage internal, integrated circuit switch to control at least one high breakdown voltage external switch
CN101938869B (zh) * 2009-06-30 2012-12-26 辉芒微电子(深圳)有限公司 交流系统中的直流控制装置
US20100332857A1 (en) * 2009-06-30 2010-12-30 Vogman Viktor D Reducing power losses in a redundant power supply system
US8212493B2 (en) * 2009-06-30 2012-07-03 Cirrus Logic, Inc. Low energy transfer mode for auxiliary power supply operation in a cascaded switching power converter
US8198874B2 (en) * 2009-06-30 2012-06-12 Cirrus Logic, Inc. Switching power converter with current sensing transformer auxiliary power supply
US8963535B1 (en) 2009-06-30 2015-02-24 Cirrus Logic, Inc. Switch controlled current sensing using a hall effect sensor
TWI489903B (zh) * 2009-07-09 2015-06-21 Light emitting diode lighting device and its current control method
US9112452B1 (en) 2009-07-14 2015-08-18 Rf Micro Devices, Inc. High-efficiency power supply for a modulated load
US8476873B2 (en) * 2009-08-10 2013-07-02 Emerson Climate Technologies, Inc. System and method for current balancing
US8508166B2 (en) * 2009-08-10 2013-08-13 Emerson Climate Technologies, Inc. Power factor correction with variable bus voltage
US8698433B2 (en) * 2009-08-10 2014-04-15 Emerson Climate Technologies, Inc. Controller and method for minimizing phase advance current
US8264192B2 (en) 2009-08-10 2012-09-11 Emerson Climate Technologies, Inc. Controller and method for transitioning between control angles
US8493014B2 (en) * 2009-08-10 2013-07-23 Emerson Climate Technologies, Inc. Controller and method for estimating, managing, and diagnosing motor parameters
US8395329B2 (en) * 2009-09-09 2013-03-12 Bel Fuse (Macao Commercial Offshore) LED ballast power supply having digital controller
US9155174B2 (en) 2009-09-30 2015-10-06 Cirrus Logic, Inc. Phase control dimming compatible lighting systems
US9178415B1 (en) 2009-10-15 2015-11-03 Cirrus Logic, Inc. Inductor over-current protection using a volt-second value representing an input voltage to a switching power converter
US8487591B1 (en) 2009-12-31 2013-07-16 Cirrus Logic, Inc. Power control system with power drop out immunity and uncompromised startup time
KR101848633B1 (ko) * 2009-11-02 2018-05-28 제네시스 글로벌 엘엘씨 전자식 램프 안정기 회로
US8654483B2 (en) 2009-11-09 2014-02-18 Cirrus Logic, Inc. Power system having voltage-based monitoring for over current protection
US8248040B2 (en) * 2009-11-12 2012-08-21 Polar Semiconductor Inc. Time-limiting mode (TLM) for an interleaved power factor correction (PFC) converter
JP5170117B2 (ja) * 2010-01-18 2013-03-27 株式会社村田製作所 スイッチング制御回路及びスイッチング電源装置
JP4958052B2 (ja) * 2010-02-24 2012-06-20 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー 系統電力平準化装置および画像診断システム
US8638079B2 (en) 2010-02-27 2014-01-28 Infineon Technologies Ag Pulse modulation control in a DC-DC converter circuit
CN103391006A (zh) 2012-05-11 2013-11-13 凹凸电子(武汉)有限公司 光源驱动电路、控制电力转换器的控制器及方法
US8698419B2 (en) 2010-03-04 2014-04-15 O2Micro, Inc. Circuits and methods for driving light sources
US8456095B2 (en) 2010-03-19 2013-06-04 Active-Semi, Inc. Reduced flicker AC LED lamp with separately shortable sections of an LED string
US8299724B2 (en) * 2010-03-19 2012-10-30 Active-Semi, Inc. AC LED lamp involving an LED string having separately shortable sections
CN101807851B (zh) * 2010-03-29 2012-07-25 北京新雷能科技股份有限公司 开关电源负载扰动前馈控制电路
GB201006390D0 (en) 2010-04-16 2010-06-02 Dyson Technology Ltd Control of a brushless motor
GB201006395D0 (en) 2010-04-16 2010-06-02 Dyson Technology Ltd Control of a brushless motor
GB201006396D0 (en) 2010-04-16 2010-06-02 Dyson Technology Ltd Control of a brushless motor
GB201006386D0 (en) 2010-04-16 2010-06-02 Dyson Technology Ltd Control of a brushless motor
GB201006397D0 (en) 2010-04-16 2010-06-02 Dyson Technology Ltd Control of a brushless motor
GB201006388D0 (en) 2010-04-16 2010-06-02 Dyson Technology Ltd Control of brushless motor
GB201006387D0 (en) * 2010-04-16 2010-06-02 Dyson Technology Ltd Control of a brushless motor
GB201006398D0 (en) 2010-04-16 2010-06-02 Dyson Technology Ltd Control of a brushless motor
GB201006392D0 (en) 2010-04-16 2010-06-02 Dyson Technology Ltd Controller for a brushless motor
GB201006391D0 (en) 2010-04-16 2010-06-02 Dyson Technology Ltd Control of a brushless permanent-magnet motor
WO2011133542A1 (en) * 2010-04-19 2011-10-27 Rf Micro Devices, Inc. Pseudo-envelope following power management system
US9431974B2 (en) 2010-04-19 2016-08-30 Qorvo Us, Inc. Pseudo-envelope following feedback delay compensation
US8633766B2 (en) 2010-04-19 2014-01-21 Rf Micro Devices, Inc. Pseudo-envelope follower power management system with high frequency ripple current compensation
US8981848B2 (en) 2010-04-19 2015-03-17 Rf Micro Devices, Inc. Programmable delay circuitry
US9099961B2 (en) 2010-04-19 2015-08-04 Rf Micro Devices, Inc. Output impedance compensation of a pseudo-envelope follower power management system
US8269422B2 (en) * 2010-04-20 2012-09-18 Chien-Chih Kuo Output controllable frequency modulation electronic ballast
US20120106216A1 (en) * 2010-04-29 2012-05-03 Victor Tzinker Ac-dc converter with unity power factor
US9173257B2 (en) * 2010-05-11 2015-10-27 Victor M. CUBIAS Low voltage LED dimmer with integrated universal switch mode power supply
EP2388902B1 (en) * 2010-05-21 2013-08-14 C.R.F. Società Consortile per Azioni System and method for digital control of a DC/DC power-converter device, in particular for automotive applications
US9084303B2 (en) * 2010-06-04 2015-07-14 Opulent Electronics International Pte. Ltd Device and method for driving LEDs
US8417196B2 (en) * 2010-06-07 2013-04-09 Skyworks Solutions, Inc. Apparatus and method for directional coupling
WO2012002824A2 (en) * 2010-06-29 2012-01-05 Eaton Industries Company Closed loop control of a cyclo-converter
TWI414923B (zh) * 2010-07-07 2013-11-11 Sitronix Technology Corp Power factor correction circuit
US8111017B2 (en) 2010-07-12 2012-02-07 O2Micro, Inc Circuits and methods for controlling dimming of a light source
US10439508B2 (en) 2010-07-27 2019-10-08 Stmicroelectronics S.R.L. Control device of a switching power supply
US8467209B2 (en) * 2010-07-27 2013-06-18 Stmicroelectronics S.R.L. Control device of a switching power supply
US8536799B1 (en) 2010-07-30 2013-09-17 Cirrus Logic, Inc. Dimmer detection
WO2012016197A1 (en) 2010-07-30 2012-02-02 Cirrus Logic, Inc. Powering high-efficiency lighting devices from a triac-based dimmer
US8569972B2 (en) * 2010-08-17 2013-10-29 Cirrus Logic, Inc. Dimmer output emulation
US8912781B2 (en) 2010-07-30 2014-12-16 Cirrus Logic, Inc. Integrated circuit switching power supply controller with selectable buck mode operation
US8729811B2 (en) 2010-07-30 2014-05-20 Cirrus Logic, Inc. Dimming multiple lighting devices by alternating energy transfer from a magnetic storage element
US8866452B1 (en) 2010-08-11 2014-10-21 Cirrus Logic, Inc. Variable minimum input voltage based switching in an electronic power control system
US9307601B2 (en) 2010-08-17 2016-04-05 Koninklijke Philips N.V. Input voltage sensing for a switching power converter and a triac-based dimmer
JP5079855B2 (ja) * 2010-08-24 2012-11-21 シャープ株式会社 Led駆動回路及びこれを用いたled照明灯具
EP2609790A2 (en) 2010-08-24 2013-07-03 Cirrus Logic, Inc. Multi-mode dimmer interfacing including attach state control
US9510401B1 (en) 2010-08-24 2016-11-29 Cirrus Logic, Inc. Reduced standby power in an electronic power control system
WO2012047738A1 (en) 2010-09-29 2012-04-12 Rf Micro Devices, Inc. SINGLE μC-BUCKBOOST CONVERTER WITH MULTIPLE REGULATED SUPPLY OUTPUTS
US8754625B2 (en) 2010-09-30 2014-06-17 Intersil Americas Inc. System and method for converting an AC input voltage to regulated output current
GB2484289B (en) 2010-10-04 2013-11-20 Dyson Technology Ltd Control of an electrical machine
KR101179327B1 (ko) * 2010-10-12 2012-09-03 서울시립대학교 산학협력단 역률 개선 회로
JP5760169B2 (ja) * 2010-10-25 2015-08-05 パナソニックIpマネジメント株式会社 点灯装置および、これを用いた照明器具
US8552893B1 (en) * 2010-11-04 2013-10-08 Cirrus Logic, Inc. Control system using nonlinear delta-sigma modulator with switching period error compensation
US9497850B2 (en) 2010-11-04 2016-11-15 Koninklijke Philips N.V. Controlled power dissipation in a lighting system
CN103262399B (zh) 2010-11-04 2017-02-15 皇家飞利浦有限公司 用于控制开关功率转换器中的能量消耗的方法和装置
CN103270678B (zh) 2010-11-04 2016-10-12 皇家飞利浦有限公司 切换功率转换器输入电压近似过零点确定
CN103190062B (zh) 2010-11-04 2016-08-31 皇家飞利浦有限公司 基于三端双向可控硅开关调光器的占空因子探测
EP2451062B1 (en) * 2010-11-08 2018-10-24 Nxp B.V. PFC with multi-channel error feedback
ES2718100T3 (es) 2010-11-16 2019-06-27 Signify Holding Bv Compatibilidad de atenuador de luz de fase final con predicción de alta resistencia de atenuador de luz
US8782107B2 (en) 2010-11-16 2014-07-15 Rf Micro Devices, Inc. Digital fast CORDIC for envelope tracking generation
JP5487084B2 (ja) * 2010-11-19 2014-05-07 株式会社メガチップス 電源装置
US8541990B2 (en) * 2010-11-23 2013-09-24 Immense Advance Technology Corp. Power conversion controller having a novel power factor correction mechanism using line voltage normalization
US20120139442A1 (en) * 2010-12-07 2012-06-07 Astec International Limited Mains Dimmable LED Driver Circuits
WO2012083222A2 (en) 2010-12-16 2012-06-21 Cirrus Logic, Inc. Switching parameter based discontinuous mode-critical conduction mode transition
US8878389B2 (en) 2011-01-11 2014-11-04 Schneider Electric It Corporation Method and apparatus for providing uninterruptible power
JP2012157220A (ja) * 2011-01-28 2012-08-16 Sony Corp 制御装置、制御方法および電源装置
CN102364857B (zh) * 2011-02-01 2012-12-12 杭州士兰微电子股份有限公司 一种原边控制的恒流开关电源控制器及方法
US8624760B2 (en) 2011-02-07 2014-01-07 Rf Micro Devices, Inc. Apparatuses and methods for rate conversion and fractional delay calculation using a coefficient look up table
WO2012109227A2 (en) 2011-02-07 2012-08-16 Rf Micro Devices, Inc. Group delay calibration method for power amplifier envelope tracking
US8450946B1 (en) * 2011-02-07 2013-05-28 Universal Lighting Technologies, Inc. Zone addressing circuit for an electronic ballast
JP5774904B2 (ja) * 2011-02-08 2015-09-09 ローム株式会社 力率改善回路およびその制御回路、それらを用いた電子機器
EP2673868B1 (en) * 2011-02-10 2015-05-20 PAI Capital LLC Input current shaping for transition and discontinuous mode power converter
CN102368662B (zh) * 2011-03-10 2013-11-27 杭州士兰微电子股份有限公司 电流基准发生电路、恒流开关电源的控制电路及方法
WO2012149430A1 (en) * 2011-04-27 2012-11-01 Todd Shudarek Combined active and passive harmonic mitigation devices and applications thereof
US9246460B2 (en) 2011-05-05 2016-01-26 Rf Micro Devices, Inc. Power management architecture for modulated and constant supply operation
US9379667B2 (en) 2011-05-05 2016-06-28 Rf Micro Devices, Inc. Multiple power supply input parallel amplifier based envelope tracking
US9247496B2 (en) 2011-05-05 2016-01-26 Rf Micro Devices, Inc. Power loop control based envelope tracking
US8933642B2 (en) 2011-05-13 2015-01-13 General Electric Company Dimmable LED lamp
US9178627B2 (en) 2011-05-31 2015-11-03 Rf Micro Devices, Inc. Rugged IQ receiver based RF gain measurements
US9019011B2 (en) 2011-06-01 2015-04-28 Rf Micro Devices, Inc. Method of power amplifier calibration for an envelope tracking system
CN103636109B (zh) * 2011-06-03 2016-08-17 塞瑞斯逻辑公司 用于操作开关电力转换器的方法和装置以及电力分配系统
US9351356B2 (en) 2011-06-03 2016-05-24 Koninklijke Philips N.V. Primary-side control of a switching power converter with feed forward delay compensation
CA2839987A1 (en) * 2011-06-20 2012-12-27 Amerlux, Llc Led driver
US8760228B2 (en) 2011-06-24 2014-06-24 Rf Micro Devices, Inc. Differential power management and power amplifier architecture
WO2013003673A1 (en) 2011-06-30 2013-01-03 Cirrus Logic, Inc. Transformer-isolated led lighting circuit with secondary-side dimming control
US8593075B1 (en) 2011-06-30 2013-11-26 Cirrus Logic, Inc. Constant current controller with selectable gain
JP5811329B2 (ja) * 2011-07-08 2015-11-11 東芝ライテック株式会社 電源装置
US8792840B2 (en) 2011-07-15 2014-07-29 Rf Micro Devices, Inc. Modified switching ripple for envelope tracking system
US8952710B2 (en) 2011-07-15 2015-02-10 Rf Micro Devices, Inc. Pulsed behavior modeling with steady state average conditions
TWI460571B (zh) * 2011-07-19 2014-11-11 Acbel Polytech Inc Power factor control circuit and its control method
US9263996B2 (en) 2011-07-20 2016-02-16 Rf Micro Devices, Inc. Quasi iso-gain supply voltage function for envelope tracking systems
US8971065B2 (en) * 2011-08-04 2015-03-03 Industrial Technology Research Institute System for providing an alternating current, and control apparatus and method thereof
CN102946195B (zh) 2011-08-15 2016-04-20 美国亚德诺半导体公司 开关调节器及其控制方法
US8624576B2 (en) 2011-08-17 2014-01-07 Rf Micro Devices, Inc. Charge-pump system for providing independent voltages
US8884464B2 (en) 2011-08-29 2014-11-11 Schneider Electric It Corporation Twin boost converter with integrated charger for UPS system
US8942652B2 (en) 2011-09-02 2015-01-27 Rf Micro Devices, Inc. Split VCC and common VCC power management architecture for envelope tracking
US20130057229A1 (en) * 2011-09-02 2013-03-07 Intersil Americas Inc. Power factor correction apparatus and method
KR101288201B1 (ko) * 2011-09-16 2013-07-18 삼성전기주식회사 역률 보정 회로, 이를 갖는 전원 장치 및 모터 구동 장치
US8736246B2 (en) * 2011-09-22 2014-05-27 Acbel Polytech Inc. Power factor control circuit and power factor control method
US9190899B2 (en) * 2011-09-28 2015-11-17 General Electric Company Power factor correction (PFC) circuit configured to control high pulse load current and inrush current
US8957728B2 (en) 2011-10-06 2015-02-17 Rf Micro Devices, Inc. Combined filter and transconductance amplifier
US9024688B2 (en) 2011-10-26 2015-05-05 Rf Micro Devices, Inc. Dual parallel amplifier based DC-DC converter
WO2013063387A2 (en) 2011-10-26 2013-05-02 Rf Micro Devices, Inc. Inductance based parallel amplifier phase compensation
US9294041B2 (en) 2011-10-26 2016-03-22 Rf Micro Devices, Inc. Average frequency control of switcher for envelope tracking
US9484797B2 (en) 2011-10-26 2016-11-01 Qorvo Us, Inc. RF switching converter with ripple correction
DE102011085547B4 (de) * 2011-11-02 2021-07-22 Robert Bosch Gmbh Vorrichtung und Verfahren zur Korrektur eines Sensorsignals
SG189603A1 (en) * 2011-11-04 2013-05-31 Opulent Electronics Internat Pte Ltd System for driving a plurality of high powered led units
WO2013067516A1 (en) * 2011-11-04 2013-05-10 Zbb Energy Corporation System and method for power conversion for renewable energy sources
US8829869B2 (en) * 2011-11-08 2014-09-09 Lincoln Global, Inc. Dynamic power factor correction and dynamic control for converter in power supply
TWI484739B (zh) * 2011-11-11 2015-05-11 Richtek Technology Corp 主動式功率因數校正電路及相關的控制器
US9065330B1 (en) * 2011-11-15 2015-06-23 Marvell International Ltd. Method and apparatus for controlling TRIAC dimmable device
US9515621B2 (en) 2011-11-30 2016-12-06 Qorvo Us, Inc. Multimode RF amplifier system
US8975959B2 (en) 2011-11-30 2015-03-10 Rf Micro Devices, Inc. Monotonic conversion of RF power amplifier calibration data
US9250643B2 (en) 2011-11-30 2016-02-02 Rf Micro Devices, Inc. Using a switching signal delay to reduce noise from a switching power supply
US9041365B2 (en) 2011-12-01 2015-05-26 Rf Micro Devices, Inc. Multiple mode RF power converter
US8947161B2 (en) 2011-12-01 2015-02-03 Rf Micro Devices, Inc. Linear amplifier power supply modulation for envelope tracking
US9256234B2 (en) 2011-12-01 2016-02-09 Rf Micro Devices, Inc. Voltage offset loop for a switching controller
US9280163B2 (en) 2011-12-01 2016-03-08 Rf Micro Devices, Inc. Average power tracking controller
US9041364B2 (en) 2011-12-01 2015-05-26 Rf Micro Devices, Inc. RF power converter
US9494962B2 (en) 2011-12-02 2016-11-15 Rf Micro Devices, Inc. Phase reconfigurable switching power supply
US8823346B2 (en) * 2011-12-09 2014-09-02 Intersil Americas LLC System and method of feed forward for boost converters with improved power factor and reduced energy storage
US10117295B2 (en) 2013-01-24 2018-10-30 Cree, Inc. LED lighting apparatus for use with AC-output lighting ballasts
CN102497705B (zh) * 2011-12-14 2014-04-02 西安华雷船舶实业有限公司 照明灯具节能控制方法及其节能电路
US9484832B2 (en) 2011-12-14 2016-11-01 Koninklijke Philips N.V. Isolation of secondary transformer winding current during auxiliary power supply generation
US9813036B2 (en) 2011-12-16 2017-11-07 Qorvo Us, Inc. Dynamic loadline power amplifier with baseband linearization
CN104137105B (zh) 2011-12-22 2017-07-11 施耐德电气It公司 关于瞬时事件对数据中心中的温度的影响分析
US9496782B2 (en) 2011-12-22 2016-11-15 B/E Aerospace, Inc. Digitally-controlled power factor correction circuits, methods and articles of manufacture
US9830410B2 (en) 2011-12-22 2017-11-28 Schneider Electric It Corporation System and method for prediction of temperature values in an electronics system
US9298198B2 (en) 2011-12-28 2016-03-29 Rf Micro Devices, Inc. Noise reduction for envelope tracking
WO2013097211A1 (zh) * 2011-12-31 2013-07-04 大洋电机新动力科技有限公司 一种带自动补偿的窄脉冲过滤电路及其应用的电机控制器
TWI542127B (zh) 2012-01-03 2016-07-11 財團法人工業技術研究院 降壓型主動式功因修正裝置
AU2012364266B2 (en) * 2012-01-05 2017-11-02 Schneider Electric It Corporation Power converter with digital current control circuit
US8847510B2 (en) * 2012-01-20 2014-09-30 Luxul Technology Incorporation LED AC driving circuit capable of adjusting operating voltage
TW201332396A (zh) * 2012-01-20 2013-08-01 Phihong Technology Co Ltd 用以驅動發光二極體之電源供應電路
ITMI20120088A1 (it) 2012-01-26 2013-07-27 Dora Spa Dispositivo di controllo per un alimentatore a commutazione.
ITMI20120089A1 (it) * 2012-01-26 2013-07-27 Dora Spa Dispositivo di controllo per un alimentatore a commutazione.
US9356534B1 (en) * 2012-01-27 2016-05-31 Marvell International Ltd. Method and apparatus for turning on a lighting device
US8937818B2 (en) * 2012-02-03 2015-01-20 Sheikh Mohammad Ahsanuzzaman Low-volume programmable-output PFC rectifier with dynamic efficiency and transient response optimization
WO2013126836A1 (en) 2012-02-22 2013-08-29 Cirrus Logic, Inc. Mixed load current compensation for led lighting
WO2013127068A1 (zh) * 2012-02-29 2013-09-06 深圳市核达中远通电源技术有限公司 一种多输入直流变换器以及一种pfc电路
JP2013186944A (ja) 2012-03-05 2013-09-19 Toshiba Lighting & Technology Corp 照明用電源及び照明器具
US9155139B2 (en) 2012-03-09 2015-10-06 Rockwell Automation Technologies, Inc. LED driver circuits and methods
US8488352B1 (en) * 2012-03-27 2013-07-16 Chicony Power Technology Co., Ltd. Method for varying power factor
TWI489743B (zh) * 2012-03-28 2015-06-21 大同股份有限公司 電源取樣裝置及其取樣方法
DE102012007479B4 (de) * 2012-04-13 2024-10-10 Tridonic Gmbh & Co Kg Verfahren zum Steuern einer Leistungsfaktorkorrekturschaltung, Leistungsfaktorkorrekturschaltung und Betriebsgerät für ein Leuchtmittel
US9634593B2 (en) 2012-04-26 2017-04-25 Emerson Climate Technologies, Inc. System and method for permanent magnet motor control
RU2525837C2 (ru) * 2012-04-28 2014-08-20 Закрытое акционерное общество "Связь инжиниринг" Способ и система управления безмостовым корректором коэффициента мощности с помощью цифрового сигнального процессора
US8848402B2 (en) * 2012-05-25 2014-09-30 Chicony Power Technology Co., Ltd. Power factor correction apparatus
US8981839B2 (en) 2012-06-11 2015-03-17 Rf Micro Devices, Inc. Power source multiplexer
JP2014011925A (ja) * 2012-07-02 2014-01-20 Omron Automotive Electronics Co Ltd 充電装置
CN103532412A (zh) * 2012-07-05 2014-01-22 台达电子工业股份有限公司 一种功率变换器的反馈控制电路及功率变换器系统
US9520794B2 (en) 2012-07-25 2016-12-13 Philips Lighting Holding B.V Acceleration of output energy provision for a load during start-up of a switching power converter
US9020451B2 (en) 2012-07-26 2015-04-28 Rf Micro Devices, Inc. Programmable RF notch filter for envelope tracking
CN107645264B (zh) 2012-08-10 2021-03-12 艾默生环境优化技术有限公司 控制电路、驱动电路以及控制压缩机的电动机的方法
US9184661B2 (en) 2012-08-27 2015-11-10 Cirrus Logic, Inc. Power conversion with controlled capacitance charging including attach state control
DE102012108011A1 (de) * 2012-08-30 2014-03-06 Infineon Technologies Austria Ag Schaltkreis zum Ansteuern eines Schalters in einem Schaltwandler
US9225231B2 (en) 2012-09-14 2015-12-29 Rf Micro Devices, Inc. Open loop ripple cancellation circuit in a DC-DC converter
US9131571B2 (en) 2012-09-14 2015-09-08 Cree, Inc. Solid-state lighting apparatus and methods using energy storage with segment control
TW201415780A (zh) * 2012-10-03 2014-04-16 Inno Tech Co Ltd 同步整流升降壓轉換器
US9197256B2 (en) 2012-10-08 2015-11-24 Rf Micro Devices, Inc. Reducing effects of RF mixer-based artifact using pre-distortion of an envelope power supply signal
US9141123B2 (en) * 2012-10-16 2015-09-22 Volterra Semiconductor LLC Maximum power point tracking controllers and associated systems and methods
WO2014062902A1 (en) 2012-10-18 2014-04-24 Rf Micro Devices, Inc Transitioning from envelope tracking to average power tracking
US9509215B2 (en) 2012-10-31 2016-11-29 Cree, Inc. Dual mode power supply controller with charge balance multipliers and charge balance multiplier circuits
US9203307B2 (en) 2012-10-31 2015-12-01 Cree, Inc. Power converter with bias voltage regulation circuit
US9484805B2 (en) * 2012-10-31 2016-11-01 Cree, Inc. Dual mode power supply controller with current regulation
KR101321236B1 (ko) * 2012-11-01 2013-10-28 명지대학교 산학협력단 Pfc 컨버터의 출력전압 리플 보상 장치 및 이를 이용한 전기 차량용 배터리 충전 장치
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
CN102946254B (zh) * 2012-12-13 2015-05-27 成都芯源系统有限公司 多相开关变换器的数字控制器及数字控制方法
KR101422959B1 (ko) * 2012-12-21 2014-08-13 삼성전기주식회사 역률 보정 장치 및 전원 공급 장치
KR101624933B1 (ko) * 2012-12-21 2016-05-27 텔레다인 달사 비.브이. 시그마-델타 아날로그 디지털 변환기
KR101367954B1 (ko) * 2012-12-21 2014-02-26 삼성전기주식회사 스위치 모드 전원 공급 장치 및 이의 스위칭 제어 회로
US9413251B2 (en) * 2013-01-15 2016-08-09 Rohm Co., Ltd. Power delivery device, AC adapter, electronic apparatus and power delivery system, having variable function of output voltage value and available output current capacity
US10045406B2 (en) * 2013-01-24 2018-08-07 Cree, Inc. Solid-state lighting apparatus for use with fluorescent ballasts
WO2014116933A2 (en) 2013-01-24 2014-07-31 Rf Micro Devices, Inc Communications based adjustments of an envelope tracking power supply
US10104723B2 (en) 2013-01-24 2018-10-16 Cree, Inc. Solid-state lighting apparatus with filament imitation for use with florescent ballasts
US9496844B1 (en) 2013-01-25 2016-11-15 Koninklijke Philips N.V. Variable bandwidth filter for dimmer phase angle measurements
US9059793B2 (en) * 2013-01-28 2015-06-16 Qualcomm Incorporated Noise shaping for switching circuitry
US9178472B2 (en) 2013-02-08 2015-11-03 Rf Micro Devices, Inc. Bi-directional power supply signal based linear amplifier
JP6088851B2 (ja) * 2013-02-25 2017-03-01 株式会社東芝 インバータ制御回路およびインバータ回路
EP2965592A1 (en) 2013-03-07 2016-01-13 Koninklijke Philips N.V. Utilizing secondary-side conduction time parameters of a switching power converter to provide energy to a load
US9166485B2 (en) 2013-03-11 2015-10-20 Cirrus Logic, Inc. Quantization error reduction in constant output current control drivers
US9661697B2 (en) * 2013-03-14 2017-05-23 Laurence P. Sadwick Digital dimmable driver
WO2014152903A2 (en) 2013-03-14 2014-09-25 Rf Micro Devices, Inc Envelope tracking power supply voltage dynamic range reduction
US9203353B2 (en) 2013-03-14 2015-12-01 Rf Micro Devices, Inc. Noise conversion gain limited RF power amplifier
EP2974545A1 (en) 2013-03-14 2016-01-20 Koninklijke Philips N.V. Controlled electronic system power dissipation via an auxiliary-power dissipation circuit
US9282598B2 (en) 2013-03-15 2016-03-08 Koninklijke Philips N.V. System and method for learning dimmer characteristics
US9142657B2 (en) * 2013-03-15 2015-09-22 David Schie Gated thyristor power device
US9391497B2 (en) 2013-04-03 2016-07-12 Trane International Inc. Electric motors having modular construction, power sharing and performance configurability
US9853539B1 (en) 2013-04-08 2017-12-26 Cirrus Logic, Inc. Systems and methods for measuring inductor current in a switching DC-to-DC converter
US9461537B1 (en) 2013-04-15 2016-10-04 Cirrus Logic, Inc. Systems and methods for measuring inductor current in a switching DC-to-DC converter
US9479118B2 (en) 2013-04-16 2016-10-25 Rf Micro Devices, Inc. Dual instantaneous envelope tracking
TWI462442B (zh) * 2013-04-26 2014-11-21 Richtek Technology Corp 電源轉換電路的控制電路及相關的控制方法
CN103236779B (zh) * 2013-04-27 2015-11-18 四川长虹电器股份有限公司 一种晶体管控制方法、装置及空调系统
US9214855B2 (en) 2013-05-03 2015-12-15 Cooper Technologies Company Active power factor correction circuit for a constant current power converter
US9000736B2 (en) * 2013-05-03 2015-04-07 Cooper Technologies Company Power factor correction algorithm for arbitrary input waveform
US9548794B2 (en) 2013-05-03 2017-01-17 Cooper Technologies Company Power factor correction for constant current input with power line communication
US9190901B2 (en) 2013-05-03 2015-11-17 Cooper Technologies Company Bridgeless boost power factor correction circuit for constant current input
CN104143901B (zh) * 2013-05-06 2017-03-15 立锜科技股份有限公司 电源转换器的控制电路及相关的控制方法
WO2014186765A1 (en) 2013-05-17 2014-11-20 Cirrus Logic, Inc. Single pin control of bipolar junction transistor (bjt)-based power stage
TWI506393B (zh) * 2013-05-17 2015-11-01 Macroblock Inc 適用於可變負載之負載能量控制電路以及利用此負載能量控制電路之可變負載的負載能量控制方法
WO2014186776A1 (en) 2013-05-17 2014-11-20 Cirrus Logic, Inc. Charge pump-based circuitry for bjt power supply
WO2014205452A1 (en) * 2013-06-21 2014-12-24 GM Global Technology Operations LLC Apparatus and method for grid-to-vehicle battery charging
CN103390995B (zh) * 2013-07-18 2015-09-30 矽力杰半导体技术(杭州)有限公司 一种pfc电路
WO2015017315A1 (en) 2013-07-29 2015-02-05 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
WO2015017317A2 (en) 2013-07-29 2015-02-05 Cirrus Logic, Inc. Two terminal drive of bipolar junction transistor (bjt) for switch-mode operation of a light emitting diode (led)-based bulb
US9374005B2 (en) 2013-08-13 2016-06-21 Rf Micro Devices, Inc. Expanded range DC-DC converter
TWI508423B (zh) * 2013-09-06 2015-11-11 Richtek Technology Corp Power conversion device
US10707038B2 (en) 2013-09-06 2020-07-07 Texas Instruments Incorporated System and method for energy monitoring
US9728974B2 (en) * 2013-10-10 2017-08-08 Tmeic Corporation Renewable energy site reactive power control
WO2015075508A1 (en) 2013-11-25 2015-05-28 Freescale Semiconductor, Inc. A flyback switching mode power supply with voltage control and a method thereof
US9716466B2 (en) * 2014-01-23 2017-07-25 Lg Electronics Inc. Power conversion apparatus, photovoltaic module and communication device and photovoltaic system including the same
JP6020489B2 (ja) * 2014-02-27 2016-11-02 トヨタ自動車株式会社 昇圧コンバータ及びその制御方法
KR102187845B1 (ko) 2014-02-28 2020-12-07 주식회사 실리콘웍스 스위치 장치 및 그 구동 방법
US9621062B2 (en) 2014-03-07 2017-04-11 Philips Lighting Holding B.V. Dimmer output emulation with non-zero glue voltage
EP2919374B1 (en) * 2014-03-12 2018-05-02 DET International Holding Limited Duty-ratio controller
DE102014205520A1 (de) * 2014-03-25 2015-10-01 Tridonic Gmbh & Co Kg Leistungsfaktorkorrekturschaltung (PFC) mit THD-Korrektur
US20150288275A1 (en) * 2014-04-08 2015-10-08 Ionel Jitaru Input Current Distortion for Minimization of Bulk Capacitor
US9215772B2 (en) 2014-04-17 2015-12-15 Philips International B.V. Systems and methods for minimizing power dissipation in a low-power lamp coupled to a trailing-edge dimmer
US9214862B2 (en) 2014-04-17 2015-12-15 Philips International, B.V. Systems and methods for valley switching in a switching power converter
US10126870B2 (en) * 2014-06-03 2018-11-13 Synaptics Incorporated Techniques for mitigating noise in capacitive sensing devices
CN105207552B (zh) * 2014-06-06 2018-02-09 台达电子工业股份有限公司 多相发电机电源转换系统及其操作方法
US10177646B2 (en) * 2014-06-13 2019-01-08 City University Of Hong Kong Power factor correction circuit for a power electronic system
US9385601B2 (en) * 2014-06-30 2016-07-05 Monolithic Power Systems Co., Ltd. SMPS with output ripple reduction control and method thereof
US9614476B2 (en) 2014-07-01 2017-04-04 Qorvo Us, Inc. Group delay calibration of RF envelope tracking
DE102014214490A1 (de) * 2014-07-24 2016-01-28 Robert Bosch Gmbh Schaltwandler und Verfahren zum Wandeln einer Eingangsspannung in eine Ausgangsspannung
FR3024304B1 (fr) * 2014-07-25 2018-03-02 Somfy Sas Procede et unite de controle et/ou de protection d’un actionneur d’un equipement mobile d’un batiment
CN105450052B (zh) * 2014-08-20 2018-03-30 台达电子工业股份有限公司 变换器、控制器与控制方法
US20160065046A1 (en) * 2014-08-29 2016-03-03 John Alan GIBSON Method and circuits for diminishing dc offset
WO2016054823A1 (en) * 2014-10-11 2016-04-14 Texas Instruments Incorporated Pre-bias startup of a converter
JP2016086616A (ja) * 2014-10-29 2016-05-19 株式会社アイケイエス 電力変換器
US9325236B1 (en) 2014-11-12 2016-04-26 Koninklijke Philips N.V. Controlling power factor in a switching power converter operating in discontinuous conduction mode
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
JP6445348B2 (ja) * 2015-02-24 2018-12-26 ルネサスエレクトロニクス株式会社 半導体装置及びその制御方法
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
US9722487B2 (en) * 2015-05-11 2017-08-01 Infineon Technologies Ag Hysteresis controllers for power factor correction in AC/DC power converters
EP3298683A1 (en) * 2015-05-21 2018-03-28 Telefonaktiebolaget LM Ericsson (publ) Switched mode power supply compensation loop
CN107836137B (zh) * 2015-06-12 2019-11-12 贝盖利股份有限公司 用于led照明装置的多功能电子电源
US9912297B2 (en) 2015-07-01 2018-03-06 Qorvo Us, Inc. Envelope tracking power converter circuitry
US9941844B2 (en) 2015-07-01 2018-04-10 Qorvo Us, Inc. Dual-mode envelope tracking power converter circuitry
EP3139484B1 (en) * 2015-09-03 2018-05-23 Nxp B.V. A mains power converter, a controller therefor, and methods of operating the same
WO2017039917A1 (en) * 2015-09-03 2017-03-09 Aerojet Rocketdyne, Inc. Short circuit protection for switching power converters
JP2017070004A (ja) * 2015-09-28 2017-04-06 ルネサスエレクトロニクス株式会社 半導体装置
US9806610B2 (en) * 2015-09-30 2017-10-31 Texas Instruments Incorporated Noise-shaped power converters
CN105406697B (zh) * 2015-12-22 2018-12-25 矽力杰半导体技术(杭州)有限公司 纹波抑制电路、方法及应用其的led灯
CN107222088B (zh) * 2016-03-22 2019-10-15 台达电子工业股份有限公司 控制模块、切换式电源供应装置及峰值电流模式控制方法
TWI595342B (zh) * 2016-03-22 2017-08-11 台達電子工業股份有限公司 控制模組、切換式電源供應裝置及切換式電源供應裝置之峰值電流模式控制方法
US10530372B1 (en) 2016-03-25 2020-01-07 MY Tech, LLC Systems and methods for digital synthesis of output signals using resonators
US10020818B1 (en) 2016-03-25 2018-07-10 MY Tech, LLC Systems and methods for fast delta sigma modulation using parallel path feedback loops
US10305373B2 (en) 2016-04-15 2019-05-28 Emerson Climate Technologies, Inc. Input reference signal generation systems and methods
US10312798B2 (en) 2016-04-15 2019-06-04 Emerson Electric Co. Power factor correction circuits and methods including partial power factor correction operation for boost and buck power converters
US10656026B2 (en) 2016-04-15 2020-05-19 Emerson Climate Technologies, Inc. Temperature sensing circuit for transmitting data across isolation barrier
US10277115B2 (en) 2016-04-15 2019-04-30 Emerson Climate Technologies, Inc. Filtering systems and methods for voltage control
US9933842B2 (en) 2016-04-15 2018-04-03 Emerson Climate Technologies, Inc. Microcontroller architecture for power factor correction converter
US10763740B2 (en) 2016-04-15 2020-09-01 Emerson Climate Technologies, Inc. Switch off time control systems and methods
US10284132B2 (en) 2016-04-15 2019-05-07 Emerson Climate Technologies, Inc. Driver for high-frequency switching voltage converters
US9973147B2 (en) 2016-05-10 2018-05-15 Qorvo Us, Inc. Envelope tracking power management circuit
US11234320B2 (en) * 2016-05-30 2022-01-25 Signify Holding B.V. Switched mode power supply identification
TWI601366B (zh) * 2016-06-03 2017-10-01 光寶電子(廣州)有限公司 電源供應器及電壓校正方法
US10024898B2 (en) * 2016-06-24 2018-07-17 General Electric Company System and method for determining inductance in a power converter
US10056828B2 (en) * 2016-07-11 2018-08-21 Infineon Technologies Austria Ag System and method for controlling current in a switching regulator
WO2018024911A1 (en) * 2016-08-05 2018-02-08 Rohm Powervation Limited A power supply controller
CN106253661B (zh) * 2016-08-05 2018-12-28 矽力杰半导体技术(杭州)有限公司 控制电路、控制方法及应用其的功率变换器
US10131245B2 (en) * 2016-08-16 2018-11-20 Ford Global Technologies, Llc Electrified vehicle DC power conversion with distributed control
US10608440B2 (en) 2016-08-31 2020-03-31 Te Connectivity Corporation Control circuit configured to determine when a direct current component in an alternating current power line passes a designated threshold
US20180069471A1 (en) * 2016-09-06 2018-03-08 Texas Instruments Incorporated Optimizing the efficiency of a boost pre-converter while maintaining input power factor
US10333416B2 (en) * 2016-09-30 2019-06-25 Semiconductor Components Industries, Llc System and method for controlling voltage control loop in power converter
WO2018094380A1 (en) 2016-11-21 2018-05-24 MY Tech, LLC High efficiency power amplifier architectures for rf applications
KR101866095B1 (ko) * 2016-12-09 2018-06-11 현대오트론 주식회사 Pwm 스위칭 주파수 제어 장치 및 방법
DE202016007619U1 (de) * 2016-12-15 2018-03-16 Tridonic Gmbh & Co. Kg Schaltregler und Betriebsgerät zum Betreiben von Leuchtmitteln
US11201548B2 (en) * 2016-12-15 2021-12-14 Foundation For Research And Business, Seoul National University Of Science And Technology Single-stage interleaved soft switching converter
US10080082B2 (en) * 2017-02-16 2018-09-18 Akustica, Inc. Microphone system having high acoustical overload point
IT201700031159A1 (it) * 2017-03-21 2018-09-21 St Microelectronics Srl Unita' di controllo di un convertitore in commutazione operante in modalita' di conduzione continua e a controllo di corrente di picco
JP2019012906A (ja) * 2017-06-29 2019-01-24 オムロン株式会社 電気機器
SG10201706597YA (en) 2017-08-11 2019-03-28 Opulent Electronics Int Pte Ltd Device and method for providing an electrical current to an electrical load
US10050443B1 (en) 2017-08-17 2018-08-14 Infineon Technologies Austria Ag PFC controller add-on circuit to stabilize THDi performance
JP6946878B2 (ja) * 2017-09-13 2021-10-13 富士電機株式会社 力率改善回路及びこれを使用したスイッチング電源装置
US9985646B1 (en) 2017-10-18 2018-05-29 Schweitzer Engineering Laboratories, Inc. Analog-to-digital converter verification using quantization noise properties
US10033400B1 (en) 2017-10-18 2018-07-24 Schweitzer Engineering Laboratories, Inc. Analog-to-digital converter verification using quantization noise properties
US10381968B2 (en) 2017-12-05 2019-08-13 Otis Elevator Company Converter pulse width modulation strategies for three phase regenerative drives
US10931198B2 (en) 2017-12-08 2021-02-23 Texas Instruments Incorporated Buck-boost power converter controller
US10128744B1 (en) * 2017-12-13 2018-11-13 Texas Instruments Incorporated Single and multi-phase DC-DC converter mode control
US10476437B2 (en) 2018-03-15 2019-11-12 Qorvo Us, Inc. Multimode voltage tracker circuit
US10250118B1 (en) * 2018-04-16 2019-04-02 Nxp B.V. PWM mode boost switching regulator with programmable pulse skip mode
US10158296B1 (en) 2018-04-18 2018-12-18 Nxp B.V. Method and system for saturation control in a flyback switched-mode power supply (SMPS)
DE202018102178U1 (de) * 2018-04-19 2019-07-22 Tridonic Gmbh & Co Kg LED-Konverteranordnung mit linearisierter Regelstrecke
US11047946B2 (en) * 2018-05-08 2021-06-29 Qualcomm Incorporated Differential current sensing with robust path, voltage offset removal and process, voltage, temperature (PVT) tolerance
KR101982209B1 (ko) * 2018-06-14 2019-05-24 고려대학교 산학협력단 연속 시간 델타-시그마 변조기
TWI685183B (zh) * 2018-07-04 2020-02-11 群光電能科技股份有限公司 混模式升壓型功因校正轉換器
US10819328B2 (en) * 2018-10-14 2020-10-27 Cirrus Logic, Inc. PWM modulator having quantizer with controllable analog gain and calibratable for multi-non-ideal gain-affecting characteristics
CN109245575B (zh) * 2018-10-23 2021-02-12 中国船舶重工集团公司第七二三研究所 一种vienna整流器随机采样方法
KR20210084553A (ko) * 2018-11-28 2021-07-07 실라나 아시아 피티이 리미티드 디지털 보상 전류 감지 보호
US10847989B2 (en) * 2018-11-28 2020-11-24 Robert Bosch Gmbh Consumer arrangement and operating method
JP7378495B2 (ja) 2019-04-24 2023-11-13 パワー・インテグレーションズ・インコーポレーテッド 能動非放散クランプ回路を備える電力コンバーターおよびそれぞれの制御装置
US11632054B2 (en) 2019-04-24 2023-04-18 Power Integrations, Inc. Mode operation detection for control of a power converter with an active clamp switch
KR102125747B1 (ko) * 2019-05-13 2020-06-23 고려대학교 산학협력단 용량성 결합 연속 시간 델타시그마 변조기 및 그 동작 방법
CN112019023B (zh) * 2019-05-31 2021-11-02 广东美的制冷设备有限公司 驱动控制方法、装置、家电设备和计算机可读存储介质
US11206743B2 (en) 2019-07-25 2021-12-21 Emerson Climate Technolgies, Inc. Electronics enclosure with heat-transfer element
US11682971B2 (en) * 2019-09-20 2023-06-20 Texas Instruments Incorporated 4-phase buck-boost converter
CN111082652B (zh) * 2019-12-30 2021-05-04 深圳市永联科技股份有限公司 电源、电源控制方法、装置以及功率校正电路
US11323022B2 (en) * 2020-05-28 2022-05-03 Nxp B.V. System for controlling inductor current of boost converter
CN212183768U (zh) * 2020-06-15 2020-12-18 珠海市圣昌电子有限公司 一种调电压式切相调光电源
CN111865047A (zh) * 2020-07-27 2020-10-30 珠海格力电器股份有限公司 一种电源效率优化方法、装置及电源设备
US11366174B2 (en) * 2020-09-11 2022-06-21 Analog Devices, Inc. Predicting failures in feedback network of power supplies using a secondary servo loop
US11596037B2 (en) * 2020-09-24 2023-02-28 ERP Power, LLC Voltage ripple detection and driver control for stable output current
US11881766B2 (en) * 2020-11-16 2024-01-23 Nexgen Power Systems, Inc. Method and system for controlling the power factor of a power converter
US11637493B2 (en) * 2020-11-23 2023-04-25 Robert S. Wrathall Electrical circuits for power factor correction by measurement and removal of overtones and power factor maximization
US10998815B1 (en) * 2020-11-23 2021-05-04 Robert S. Wrathall Electrical circuits for power factor correction by measurement and removal of overtones
JP7528779B2 (ja) * 2020-12-24 2024-08-06 富士電機株式会社 スイッチング制御回路、電源回路
US11695327B2 (en) * 2021-02-25 2023-07-04 Nxp B.V. Power converter control using current reconstruction of power factor correction inductor current
US11575314B2 (en) * 2021-05-28 2023-02-07 Texas Instruments Incorporated Autonomous mode transition for multimode operation in boost PFC converters
RU2767039C1 (ru) * 2021-05-31 2022-03-16 Общество с ограниченной ответственностью "Ледел" Драйвер для светодиодного светильника
US20230092612A1 (en) * 2021-06-16 2023-03-23 BWI Technology LLC Dual-Input Renewable Energy DC Microgrid-Ready Lighting Fixtures
TWI786875B (zh) * 2021-10-08 2022-12-11 海韻電子工業股份有限公司 功率校正電路的控制模組
US11933919B2 (en) 2022-02-24 2024-03-19 Mixed-Signal Devices Inc. Systems and methods for synthesis of modulated RF signals
US11894864B2 (en) * 2022-03-23 2024-02-06 Silicon Laboratories Inc. Analog-to-digital converter having punctured quantizer
EP4262072A1 (en) * 2022-04-13 2023-10-18 Abb Schweiz Ag A method for reducing noise in a converter arrangement and a converter arrangement with noise reduction
CN116317482B (zh) * 2023-05-12 2023-09-05 梵塔半导体技术(杭州)有限公司 一种开关电路控制方法、开关电路控制芯片及开关电路
CN116260320B (zh) * 2023-05-12 2023-09-05 梵塔半导体技术(杭州)有限公司 开关电路控制方法、开关电路控制芯片及开关电路

Family Cites Families (298)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3316495A (en) 1964-07-06 1967-04-25 Cons Systems Corp Low-level commutator with means for providing common mode rejection
US3423689A (en) 1965-08-19 1969-01-21 Hewlett Packard Co Direct current amplifier
US3586988A (en) 1967-12-01 1971-06-22 Newport Lab Direct coupled differential amplifier
US3725804A (en) 1971-11-26 1973-04-03 Avco Corp Capacitance compensation circuit for differential amplifier
US3790878A (en) * 1971-12-22 1974-02-05 Keithley Instruments Switching regulator having improved control circuiting
US3881167A (en) * 1973-07-05 1975-04-29 Pelton Company Inc Method and apparatus to maintain constant phase between reference and output signals
US4075701A (en) 1975-02-12 1978-02-21 Messerschmitt-Bolkow-Blohm Gesellschaft Mit Beschrankter Haftung Method and circuit arrangement for adapting the measuring range of a measuring device operating with delta modulation in a navigation system
US4334250A (en) 1978-03-16 1982-06-08 Tektronix, Inc. MFM data encoder with write precompensation
US4337441A (en) 1980-02-11 1982-06-29 Tektronix, Inc. Supply-voltage driver for a differential amplifier
SE438048B (sv) * 1980-06-16 1985-03-25 Asea Ab Fiberoptisk temperaturgivare baserad pa fotoluminiscens hos ett fast material, som er utsatt for den temperatur som skall metas
US4414493A (en) 1981-10-06 1983-11-08 Thomas Industries Inc. Light dimmer for solid state ballast
US4476706A (en) 1982-01-18 1984-10-16 Delphian Partners Remote calibration system
US4523128A (en) * 1982-12-10 1985-06-11 Honeywell Inc. Remote control of dimmable electronic gas discharge lamp ballasts
US4700188A (en) 1985-01-29 1987-10-13 Micronic Interface Technologies Electric power measurement system and hall effect based electric power meter for use therein
DE3528046A1 (de) * 1985-08-05 1987-02-05 Bbc Brown Boveri & Cie Rundsteuerempfaenger
US4677366A (en) 1986-05-12 1987-06-30 Pioneer Research, Inc. Unity power factor power supply
US4683529A (en) 1986-11-12 1987-07-28 Zytec Corporation Switching power supply with automatic power factor correction
US4797633A (en) 1987-03-20 1989-01-10 Video Sound, Inc. Audio amplifier
US4994952A (en) 1988-02-10 1991-02-19 Electronics Research Group, Inc. Low-noise switching power supply having variable reluctance transformer
GB8817684D0 (en) * 1988-07-25 1988-09-01 Astec Int Ltd Power factor improvement
GB8821130D0 (en) 1988-09-09 1988-10-12 Ml Aviation Co Ltd Inductive coupler
US4977366A (en) * 1988-10-07 1990-12-11 Lucas Weinschel Inc. High frequency power sensing device
US4941078A (en) * 1989-03-07 1990-07-10 Rca Licensing Corporation Synchronized switch-mode power supply
US4973919A (en) 1989-03-23 1990-11-27 Doble Engineering Company Amplifying with directly coupled, cascaded amplifiers
US4940929A (en) 1989-06-23 1990-07-10 Apollo Computer, Inc. AC to DC converter with unity power factor
US4980898A (en) 1989-08-08 1990-12-25 Siemens-Pacesetter, Inc. Self-oscillating burst mode transmitter with integral number of periods
US5109185A (en) 1989-09-29 1992-04-28 Ball Newton E Phase-controlled reversible power converter presenting a controllable counter emf to a source of an impressed voltage
US5006975A (en) * 1989-11-03 1991-04-09 Cherry Semiconductor Corporation Power factor correction circuit
US4992919A (en) 1989-12-29 1991-02-12 Lee Chu Quon Parallel resonant converter with zero voltage switching
US5003454A (en) * 1990-01-09 1991-03-26 North American Philips Corporation Power supply with improved power factor correction
US5055746A (en) 1990-08-13 1991-10-08 Electronic Ballast Technology, Incorporated Remote control of fluorescent lamp ballast using power flow interruption coding with means to maintain filament voltage substantially constant as the lamp voltage decreases
US5278490A (en) 1990-09-04 1994-01-11 California Institute Of Technology One-cycle controlled switching circuit
US5121079A (en) 1991-02-12 1992-06-09 Dargatz Marvin R Driven-common electronic amplifier
US5477481A (en) 1991-02-15 1995-12-19 Crystal Semiconductor Corporation Switched-capacitor integrator with chopper stabilization performed at the sampling rate
US5206540A (en) * 1991-05-09 1993-04-27 Unitrode Corporation Transformer isolated drive circuit
JP3158590B2 (ja) * 1992-01-10 2001-04-23 タカタ株式会社 シートベルトのトング係止装置
DE69223508T2 (de) * 1992-07-10 1998-06-25 Ibm Dezimationsfilter für einen Sigma-Delta-Wandler und A/D-Wandler mit einem solchen Filter
EP0580923B1 (en) 1992-07-30 1997-10-15 STMicroelectronics S.r.l. Device comprising an error amplifier, a control portion and a circuit for detecting voltage variations in relation to a set value
US5264780A (en) 1992-08-10 1993-11-23 International Business Machines Corporation On time control and gain circuit
US5313381A (en) 1992-09-01 1994-05-17 Power Integrations, Inc. Three-terminal switched mode power supply integrated circuit
US5359180A (en) 1992-10-02 1994-10-25 General Electric Company Power supply system for arcjet thrusters
JPH06209569A (ja) 1993-01-05 1994-07-26 Yokogawa Electric Corp スイッチング電源装置
US5323157A (en) 1993-01-15 1994-06-21 Motorola, Inc. Sigma-delta digital-to-analog converter with reduced noise
US5481178A (en) 1993-03-23 1996-01-02 Linear Technology Corporation Control circuit and method for maintaining high efficiency over broad current ranges in a switching regulator circuit
DE4320682C1 (de) 1993-06-22 1995-01-26 Siemens Ag Verfahren und Schaltungsanordnung zur Regelung der Beleuchtung eines Raumes
US5638265A (en) 1993-08-24 1997-06-10 Gabor; George Low line harmonic AC to DC power supply
KR960013948B1 (ko) * 1993-11-16 1996-10-10 삼성전자 주식회사 역률 보정회로
US5383109A (en) 1993-12-10 1995-01-17 University Of Colorado High power factor boost rectifier apparatus
US5479333A (en) 1994-04-25 1995-12-26 Chrysler Corporation Power supply start up booster circuit
US5565761A (en) 1994-09-02 1996-10-15 Micro Linear Corp Synchronous switching cascade connected offline PFC-PWM combination power converter controller
JPH0962816A (ja) * 1994-10-06 1997-03-07 Mitsubishi Electric Corp 非接触icカードおよびこれを含む非接触icカードシステム
US5867379A (en) * 1995-01-12 1999-02-02 University Of Colorado Non-linear carrier controllers for high power factor rectification
US5668446A (en) 1995-01-17 1997-09-16 Negawatt Technologies Inc. Energy management control system for fluorescent lighting
JP2730506B2 (ja) 1995-02-27 1998-03-25 日本電気株式会社 圧電トランスを用いたdc/dcコンバータ
US5971597A (en) 1995-03-29 1999-10-26 Hubbell Corporation Multifunction sensor and network sensor system
US5747977A (en) 1995-03-30 1998-05-05 Micro Linear Corporation Switching regulator having low power mode responsive to load power consumption
JPH09140145A (ja) * 1995-11-15 1997-05-27 Samsung Electron Co Ltd 力率補償回路を備えた昇圧型コンバータ
GB2307802B (en) * 1995-12-01 2000-06-07 Ibm Power supply with power factor correction circuit
KR0154776B1 (ko) 1995-12-28 1998-12-15 김광호 역률 보상 회로
US5741123A (en) * 1996-01-18 1998-04-21 Pauly; Lou Allen Turbocharger compressor fan and housing
JP3869903B2 (ja) 1996-03-05 2007-01-17 キヤノン株式会社 電子写真画像形成装置
US5815102A (en) 1996-06-12 1998-09-29 Audiologic, Incorporated Delta sigma pwm dac to reduce switching
US6150969A (en) 1996-06-12 2000-11-21 Audiologic, Incorporated Correction of nonlinear output distortion in a Delta Sigma DAC
US5798635A (en) 1996-06-20 1998-08-25 Micro Linear Corporation One pin error amplifier and switched soft-start for an eight pin PFC-PWM combination integrated circuit converter controller
US5844399A (en) * 1996-07-26 1998-12-01 The University Of Toledo Battery charger control system
KR100206143B1 (ko) * 1996-08-28 1999-07-01 윤종용 고역률 보상회로
US5781040A (en) 1996-10-31 1998-07-14 Hewlett-Packard Company Transformer isolated driver for power transistor using frequency switching as the control signal
US5912812A (en) 1996-12-19 1999-06-15 Lucent Technologies Inc. Boost power converter for powering a load from an AC source
US5783909A (en) 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
US6084450A (en) 1997-01-14 2000-07-04 The Regents Of The University Of California PWM controller with one cycle response
US5960207A (en) 1997-01-21 1999-09-28 Dell Usa, L.P. System and method for reducing power losses by gating an active power factor conversion process
US5793625A (en) 1997-01-24 1998-08-11 Baker Hughes Incorporated Boost converter regulated alternator
JP3644615B2 (ja) 1997-02-17 2005-05-11 Tdk株式会社 スイッチング電源
US5952849A (en) * 1997-02-21 1999-09-14 Analog Devices, Inc. Logic isolator with high transient immunity
DE19713814A1 (de) 1997-04-03 1998-10-15 Siemens Ag Schaltnetzteil
US6442213B1 (en) 1997-04-22 2002-08-27 Silicon Laboratories Inc. Digital isolation system with hybrid circuit in ADC calibration loop
US5901176A (en) 1997-04-29 1999-05-04 Hewlett-Packard Company Delta-sigma pulse width modulator control circuit
US6211627B1 (en) 1997-07-29 2001-04-03 Michael Callahan Lighting systems
US5963086A (en) 1997-08-08 1999-10-05 Velodyne Acoustics, Inc. Class D amplifier with switching control
US7064498B2 (en) 1997-08-26 2006-06-20 Color Kinetics Incorporated Light-emitting diode based products
US6211626B1 (en) 1997-08-26 2001-04-03 Color Kinetics, Incorporated Illumination components
US6016038A (en) 1997-08-26 2000-01-18 Color Kinetics, Inc. Multicolored LED lighting method and apparatus
US6888322B2 (en) 1997-08-26 2005-05-03 Color Kinetics Incorporated Systems and methods for color changing device and enclosure
US6967448B2 (en) 1997-08-26 2005-11-22 Color Kinetics, Incorporated Methods and apparatus for controlling illumination
US6975079B2 (en) 1997-08-26 2005-12-13 Color Kinetics Incorporated Systems and methods for controlling illumination sources
US6806659B1 (en) 1997-08-26 2004-10-19 Color Kinetics, Incorporated Multicolored LED lighting method and apparatus
US7014336B1 (en) 1999-11-18 2006-03-21 Color Kinetics Incorporated Systems and methods for generating and modulating illumination conditions
JPH1172515A (ja) 1997-08-28 1999-03-16 Iwatsu Electric Co Ltd 広帯域アナログ絶縁回路
US6873065B2 (en) 1997-10-23 2005-03-29 Analog Devices, Inc. Non-optical signal isolator
US5929400A (en) * 1997-12-22 1999-07-27 Otis Elevator Company Self commissioning controller for field-oriented elevator motor/drive system
US5900683A (en) 1997-12-23 1999-05-04 Ford Global Technologies, Inc. Isolated gate driver for power switching device and method for carrying out same
US6509913B2 (en) 1998-04-30 2003-01-21 Openwave Systems Inc. Configurable man-machine interface
KR100286047B1 (ko) * 1998-05-15 2001-04-16 김덕중 역톱니파를 이용한 역률 보정 회로
KR100303450B1 (ko) * 1998-05-29 2001-11-30 김덕중 역률보정제어기
US6043633A (en) 1998-06-05 2000-03-28 Systel Development & Industries Power factor correction method and apparatus
US6083276A (en) 1998-06-11 2000-07-04 Corel, Inc. Creating and configuring component-based applications using a text-based descriptive attribute grammar
DE19827755A1 (de) 1998-06-23 2000-03-02 Siemens Ag Hybridfilter für ein Wechselspannungsnetz
IL125328A0 (en) 1998-07-13 1999-03-12 Univ Ben Gurion Modular apparatus for regulating the harmonics of current drawn from power lines
US6140777A (en) * 1998-07-29 2000-10-31 Philips Electronics North America Corporation Preconditioner having a digital power factor controller
KR100293979B1 (ko) 1998-11-10 2001-09-17 김덕중 스위칭모드파워서플라이
DE69833635T2 (de) 1998-12-14 2007-01-18 Alcatel Verstärkungsanordnung mit Spannungsverstärkung und reduziertem Leistungsverbrauch
US6495964B1 (en) 1998-12-18 2002-12-17 Koninklijke Philips Electronics N.V. LED luminaire with electrically adjusted color balance using photodetector
US6091233A (en) 1999-01-14 2000-07-18 Micro Linear Corporation Interleaved zero current switching in a power factor correction boost converter
US6064187A (en) 1999-02-12 2000-05-16 Analog Devices, Inc. Voltage regulator compensation circuit and method
US6344811B1 (en) 1999-03-16 2002-02-05 Audio Logic, Inc. Power supply compensation for noise shaped, digital amplifiers
DE10032846A1 (de) 1999-07-12 2001-01-25 Int Rectifier Corp Leistungsfaktor-Korrektursteuerschaltung
US6317068B1 (en) 1999-08-23 2001-11-13 Level One Communications, Inc. Method and apparatus for matching common mode output voltage at a switched-capacitor to continuous-time interface
US6181114B1 (en) 1999-10-26 2001-01-30 International Business Machines Corporation Boost circuit which includes an additional winding for providing an auxiliary output voltage
US6160724A (en) * 1999-10-26 2000-12-12 International Business Machines Corporation Boost doubler circuit wherein an AC bridge rectifier is not required
US6407515B1 (en) 1999-11-12 2002-06-18 Lighting Control, Inc. Power regulator employing a sinusoidal reference
US7158633B1 (en) 1999-11-16 2007-01-02 Silicon Laboratories, Inc. Method and apparatus for monitoring subscriber loop interface circuitry power dissipation
JP3594857B2 (ja) * 1999-11-26 2004-12-02 パイオニア株式会社 プラズマディスプレイパネル
US6229271B1 (en) 2000-02-24 2001-05-08 Osram Sylvania Inc. Low distortion line dimmer and dimming ballast
US6246183B1 (en) 2000-02-28 2001-06-12 Litton Systems, Inc. Dimmable electrodeless light source
US6636107B2 (en) 2000-03-28 2003-10-21 International Rectifier Corporation Active filter for reduction of common mode current
US6970503B1 (en) * 2000-04-21 2005-11-29 National Semiconductor Corporation Apparatus and method for converting analog signal to pulse-width-modulated signal
US6693571B2 (en) 2000-05-10 2004-02-17 Cirrus Logic, Inc. Modulation of a digital input signal using a digital signal modulator and signal splitting
US6882552B2 (en) 2000-06-02 2005-04-19 Iwatt, Inc. Power converter driven by power pulse and sense pulse
US6304473B1 (en) 2000-06-02 2001-10-16 Iwatt Operating a power converter at optimal efficiency
DE60101978T2 (de) 2000-06-15 2004-12-23 City University Of Hong Kong Dimmbares EVG
US6344986B1 (en) * 2000-06-15 2002-02-05 Astec International Limited Topology and control method for power factor correction
US6690594B2 (en) * 2000-08-10 2004-02-10 Sal G. Amarillas Electrical power conservation apparatus and method
US6373340B1 (en) 2000-08-14 2002-04-16 K. S. Waves, Ltd. High-efficiency audio power amplifier
US6636003B2 (en) 2000-09-06 2003-10-21 Spectrum Kinetics Apparatus and method for adjusting the color temperature of white semiconduct or light emitters
US6404369B1 (en) 2000-09-29 2002-06-11 Teradyne, Inc. Digital to analog converter employing sigma-delta loop and feedback DAC model
US6407691B1 (en) * 2000-10-18 2002-06-18 Cirrus Logic, Inc. Providing power, clock, and control signals as a single combined signal across an isolation barrier in an ADC
FR2815790B1 (fr) 2000-10-24 2003-02-07 St Microelectronics Sa Convertisseur de tension a circuit de commande autooscillant
US6583550B2 (en) 2000-10-24 2003-06-24 Toyoda Gosei Co., Ltd. Fluorescent tube with light emitting diodes
US6343026B1 (en) 2000-11-09 2002-01-29 Artesyn Technologies, Inc. Current limit circuit for interleaved converters
US6369525B1 (en) 2000-11-21 2002-04-09 Philips Electronics North America White light-emitting-diode lamp driver based on multiple output converter with output current mode control
JP2002171205A (ja) 2000-11-30 2002-06-14 Matsushita Electric Works Ltd 電力線搬送用端末のシステム設定方法及び電力線搬送用端末設定装置
JP3371962B2 (ja) 2000-12-04 2003-01-27 サンケン電気株式会社 Dc−dcコンバ−タ
DE10061563B4 (de) 2000-12-06 2005-12-08 RUBITEC Gesellschaft für Innovation und Technologie der Ruhr-Universität Bochum mbH Verfahren und Vorrichtung zum Ein- und Ausschalten von Leistungshalbleitern, insbesondere für ein drehzahlvariables Betreiben einer Asynchronmaschine, ein Betreiben einer Zündschaltung für Ottomotoren, sowie Schaltnetzteil
US6441558B1 (en) 2000-12-07 2002-08-27 Koninklijke Philips Electronics N.V. White LED luminary light control system
EP1215808B1 (en) 2000-12-13 2011-05-11 Semiconductor Components Industries, LLC A power supply circuit and method thereof to detect demagnitization of the power supply
CN1121088C (zh) * 2000-12-26 2003-09-10 艾黙生网络能源有限公司 单相功率因数校正升压变换器
DE60210217T2 (de) 2001-01-31 2006-11-16 Matsushita Electric Industrial Co., Ltd., Kadoma Schaltnetzteilgerät
EP1360877A1 (en) 2001-02-02 2003-11-12 Koninklijke Philips Electronics N.V. Integrated light source
EP1239575A3 (en) * 2001-03-08 2003-11-05 Shindengen Electric Manufacturing Company, Limited DC stabilised power supply
US6452521B1 (en) * 2001-03-14 2002-09-17 Rosemount Inc. Mapping a delta-sigma converter range to a sensor range
US6510995B2 (en) * 2001-03-16 2003-01-28 Koninklijke Philips Electronics N.V. RGB LED based light driver using microprocessor controlled AC distributed power system
US6407514B1 (en) 2001-03-29 2002-06-18 General Electric Company Non-synchronous control of self-oscillating resonant converters
US6531854B2 (en) 2001-03-30 2003-03-11 Champion Microelectronic Corp. Power factor correction circuit arrangement
US6917504B2 (en) 2001-05-02 2005-07-12 Supertex, Inc. Apparatus and method for adaptively controlling power supplied to a hot-pluggable subsystem
WO2002091805A2 (en) 2001-05-10 2002-11-14 Color Kinetics Incorporated Systems and methods for synchronizing lighting effects
US6486645B1 (en) * 2001-06-13 2002-11-26 Sipex Corporation Voltage regulation circuit and related methods having a dynamically determined minimum discharge time
WO2003000025A2 (en) 2001-06-21 2003-01-03 Champion Microelectronic Corp. Current inrush limiting and bleed resistor current inhibiting in a switching power converter
US6628106B1 (en) 2001-07-30 2003-09-30 University Of Central Florida Control method and circuit to provide voltage and current regulation for multiphase DC/DC converters
US6600296B2 (en) * 2001-11-13 2003-07-29 Intel Corporation Method and semiconductor die with multiple phase power converter
IL147578A (en) 2002-01-10 2006-06-11 Lightech Electronics Ind Ltd Lamp transformer for use with an electronic dimmer and method for use thereof for reducing acoustic noise
US7006367B2 (en) 2002-01-11 2006-02-28 Precisionh2 Power Inc. Power factor controller
US20080027841A1 (en) 2002-01-16 2008-01-31 Jeff Scott Eder System for integrating enterprise performance management
WO2003067744A1 (fr) 2002-02-08 2003-08-14 Sanken Electric Co., Ltd. Procede de demarrage d'un bloc d'alimentation, circuit de demarrage d'un bloc d'alimentation, bloc d'alimentation
GB0204212D0 (en) 2002-02-22 2002-04-10 Oxley Dev Co Ltd Led drive circuit
US7756896B1 (en) 2002-03-11 2010-07-13 Jp Morgan Chase Bank System and method for multi-dimensional risk analysis
DE10212605B4 (de) 2002-03-21 2004-09-23 Infineon Technologies Ag Verfahren und Vorrichtung zur getakteten Ansteuerung eines Schaltelements
JP3947682B2 (ja) 2002-04-26 2007-07-25 Fdk株式会社 スイッチング電源回路
SE0201432D0 (sv) 2002-04-29 2002-05-13 Emerson Energy Systems Ab A Power supply system and apparatus
US7358679B2 (en) 2002-05-09 2008-04-15 Philips Solid-State Lighting Solutions, Inc. Dimmable LED-based MR16 lighting apparatus and methods
US6844702B2 (en) * 2002-05-16 2005-01-18 Koninklijke Philips Electronics N.V. System, method and apparatus for contact-less battery charging with dynamic control
JP4175027B2 (ja) 2002-05-28 2008-11-05 松下電工株式会社 放電灯点灯装置
KR100985026B1 (ko) 2002-05-28 2010-10-04 코닌클리케 필립스 일렉트로닉스 엔.브이. 영상의 모션 블러, 플리커 및 밝기 손실을 감소시키기 위한 방법, 비-스트로보스코픽 디스플레이 디바이스
US6728121B2 (en) 2002-05-31 2004-04-27 Green Power Technologies Ltd. Method and apparatus for active power factor correction with minimum input current distortion
US6657417B1 (en) 2002-05-31 2003-12-02 Champion Microelectronic Corp. Power factor correction with carrier control and input voltage sensing
EP1367703A1 (en) 2002-05-31 2003-12-03 STMicroelectronics S.r.l. Method of regulation of the supply voltage of a load and relative voltage regulator
US6753661B2 (en) 2002-06-17 2004-06-22 Koninklijke Philips Electronics N.V. LED-based white-light backlighting for electronic displays
US7339287B2 (en) 2002-06-23 2008-03-04 Powerlynx A/S Power converter
US6756772B2 (en) 2002-07-08 2004-06-29 Cogency Semiconductor Inc. Dual-output direct current voltage converter
US6860628B2 (en) 2002-07-17 2005-03-01 Jonas J. Robertson LED replacement for fluorescent lighting
US6781351B2 (en) 2002-08-17 2004-08-24 Supertex Inc. AC/DC cascaded power converters having high DC conversion ratio and improved AC line harmonics
US6940733B2 (en) 2002-08-22 2005-09-06 Supertex, Inc. Optimal control of wide conversion ratio switching converters
US6724174B1 (en) 2002-09-12 2004-04-20 Linear Technology Corp. Adjustable minimum peak inductor current level for burst mode in current-mode DC-DC regulators
KR100470599B1 (ko) 2002-10-16 2005-03-10 삼성전자주식회사 전자기기의 회로를 보호할 수 있는 전원공급장치
US6744223B2 (en) 2002-10-30 2004-06-01 Quebec, Inc. Multicolor lamp system
US6727832B1 (en) * 2002-11-27 2004-04-27 Cirrus Logic, Inc. Data converters with digitally filtered pulse width modulation output stages and methods and systems using the same
US6741123B1 (en) 2002-12-26 2004-05-25 Cirrus Logic, Inc. Delta-sigma amplifiers with output stage supply voltage variation compensation and methods and digital amplifier systems using the same
US6842486B2 (en) * 2003-01-21 2005-01-11 Cirrus Logic, Inc. Signal processing system with baseband noise modulation and noise fold back reduction
US6768655B1 (en) 2003-02-03 2004-07-27 System General Corp. Discontinuous mode PFC controller having a power saving modulator and operation method thereof
JP3947720B2 (ja) 2003-02-28 2007-07-25 日本放送協会 白熱灯用調光制御照明装置の使用方法
JP4082672B2 (ja) * 2003-03-06 2008-04-30 株式会社デンソー 電気絶縁型スイッチング素子駆動回路
DE60310520T2 (de) 2003-03-18 2007-10-11 Power One Italy S.P.A. Beleuchtungssteuerung mit Modem über Stromversorgungsleitung
US7078963B1 (en) * 2003-03-21 2006-07-18 D2Audio Corporation Integrated PULSHI mode with shutdown
EP1618712A2 (en) 2003-04-30 2006-01-25 Analog Devices, Inc. Signal isolators using micro-transformers
US7126288B2 (en) 2003-05-05 2006-10-24 International Rectifier Corporation Digital electronic ballast control apparatus and method
JP4072765B2 (ja) 2003-05-12 2008-04-09 日本ビクター株式会社 電力増幅回路
US7001036B2 (en) 2003-05-13 2006-02-21 Universal Plastics Products, Inc. Electroluminescent illumination for a magnetic compass
US6956750B1 (en) 2003-05-16 2005-10-18 Iwatt Inc. Power converter controller having event generator for detection of events and generation of digital error
US10115077B2 (en) 2003-06-20 2018-10-30 Gaiasoft Ip Limited System for facilitating management and organisational development processes
ITMI20031315A1 (it) * 2003-06-27 2004-12-28 St Microelectronics Srl Dispositivo per la correzione del fattore di potenza in alimentatori a commutazione forzata.
US6944034B1 (en) 2003-06-30 2005-09-13 Iwatt Inc. System and method for input current shaping in a power converter
AU2004254642B8 (en) 2003-07-02 2009-02-26 S.C. Johnson & Son, Inc. Lamp and bulb for illumination and ambiance lighting
EP2806530B1 (en) 2003-07-07 2021-04-28 Nippon Telegraph And Telephone Corporation Booster
US6839247B1 (en) 2003-07-10 2005-01-04 System General Corp. PFC-PWM controller having a power saving means
WO2005017802A2 (en) 2003-08-15 2005-02-24 Providus Software Solutions, Inc. Risk mitigation and management
US6933706B2 (en) 2003-09-15 2005-08-23 Semiconductor Components Industries, Llc Method and circuit for optimizing power efficiency in a DC-DC converter
JP4107209B2 (ja) 2003-09-29 2008-06-25 株式会社村田製作所 リップルコンバータ
US6958920B2 (en) 2003-10-02 2005-10-25 Supertex, Inc. Switching power converter and method of controlling output voltage thereof using predictive sensing of magnetic flux
US7109977B2 (en) * 2003-10-05 2006-09-19 T2D, Inc. Slipcover touch input apparatus for displays of computing devices
ITMI20031987A1 (it) 2003-10-14 2005-04-15 Archimede Elettronica S R L Dispositivo e metodo per il controllo del colore di una sorgente di illuminazione
US20060116898A1 (en) 2003-11-18 2006-06-01 Peterson Gary E Interactive risk management system and method with reputation risk management
US7019507B1 (en) * 2003-11-26 2006-03-28 Linear Technology Corporation Methods and circuits for programmable current limit protection
US7009543B2 (en) 2004-01-16 2006-03-07 Cirrus Logic, Inc. Multiple non-monotonic quantizer regions for noise shaping
US20050018495A1 (en) * 2004-01-29 2005-01-27 Netlist, Inc. Arrangement of integrated circuits in a memory module
US7034611B2 (en) 2004-02-09 2006-04-25 Texas Instruments Inc. Multistage common mode feedback for improved linearity line drivers
US7142142B2 (en) * 2004-02-25 2006-11-28 Nelicor Puritan Bennett, Inc. Multi-bit ADC with sigma-delta modulation
WO2005086245A2 (en) 2004-03-03 2005-09-15 S.C. Johnson & Son, Inc. Led light bulb with active ingredient emission
EP1754121A4 (en) 2004-03-15 2014-02-12 Philips Solid State Lighting METHODS AND SYSTEMS FOR PROVIDING LIGHTING SYSTEMS
EP3223587A3 (en) 2004-03-15 2017-11-08 Philips Lighting North America Corporation Power control methods and apparatus
JP4337041B2 (ja) 2004-03-17 2009-09-30 株式会社デンソー Dc−dcコンバータ
US7266001B1 (en) 2004-03-19 2007-09-04 Marvell International Ltd. Method and apparatus for controlling power factor correction
US7569996B2 (en) 2004-03-19 2009-08-04 Fred H Holmes Omni voltage direct current power supply
US6977827B2 (en) 2004-03-22 2005-12-20 American Superconductor Corporation Power system having a phase locked loop with a notch filter
US20050222881A1 (en) 2004-04-05 2005-10-06 Garry Booker Management work system and method
US7317625B2 (en) 2004-06-04 2008-01-08 Iwatt Inc. Parallel current mode control using a direct duty cycle algorithm with low computational requirements to perform power factor correction
US7259524B2 (en) 2004-06-10 2007-08-21 Lutron Electronics Co., Inc. Apparatus and methods for regulating delivery of electrical energy
EP1608206B1 (en) 2004-06-14 2009-08-12 STMicroelectronics S.r.l. Led driving device with variable light intensity
US7109791B1 (en) 2004-07-09 2006-09-19 Rf Micro Devices, Inc. Tailored collector voltage to minimize variation in AM to PM distortion in a power amplifier
DE102004033354B4 (de) * 2004-07-09 2015-06-11 Infineon Technologies Ag Verfahren zur Ansteuerung eines Schalters in einem Hochsetzsteller und Ansteuerschaltung
FR2873243A1 (fr) * 2004-07-13 2006-01-20 St Microelectronics Sa Circuit d'alimentation adaptable
US7088059B2 (en) 2004-07-21 2006-08-08 Boca Flasher Modulated control circuit and method for current-limited dimming and color mixing of display and illumination systems
JP4081462B2 (ja) 2004-08-02 2008-04-23 沖電気工業株式会社 表示パネルの色合い調整回路
DE602004015276D1 (de) * 2004-08-06 2008-09-04 Verigy Pte Ltd Singapore Verbesserte Analogsignalerzeugung mittels eines Delta-Sigma Modulators
JP2006067730A (ja) 2004-08-27 2006-03-09 Sanken Electric Co Ltd 力率改善回路
JP4646583B2 (ja) * 2004-09-17 2011-03-09 キヤノン株式会社 撮像装置及びその制御方法
US7276861B1 (en) 2004-09-21 2007-10-02 Exclara, Inc. System and method for driving LED
US7292013B1 (en) 2004-09-24 2007-11-06 Marvell International Ltd. Circuits, systems, methods, and software for power factor correction and/or control
US7394210B2 (en) 2004-09-29 2008-07-01 Tir Technology Lp System and method for controlling luminaires
US20060125420A1 (en) 2004-12-06 2006-06-15 Michael Boone Candle emulation device
US7723964B2 (en) 2004-12-15 2010-05-25 Fujitsu General Limited Power supply device
GB2421367B (en) 2004-12-20 2008-09-03 Stephen Bryce Hayes Lighting apparatus and method
TWI253224B (en) * 2004-12-21 2006-04-11 Richtek Techohnology Corp Over-voltage and over-current protector and protective method for rising voltage current-mode converter
US7221130B2 (en) 2005-01-05 2007-05-22 Fyrestorm, Inc. Switching power converter employing pulse frequency modulation control
US8193795B2 (en) * 2005-01-05 2012-06-05 Exar, Inc. Output current and input power regulation with a power converter
US7180250B1 (en) 2005-01-25 2007-02-20 Henry Michael Gannon Triac-based, low voltage AC dimmer
US7945472B2 (en) 2005-02-11 2011-05-17 Optimum Outcomes, Llc Business management tool
US7102902B1 (en) 2005-02-17 2006-09-05 Ledtronics, Inc. Dimmer circuit for LED
WO2006092040A1 (en) 2005-03-03 2006-09-08 Tir Systems Ltd. Method and apparatus for controlling thermal stress in lighting devices
US7378805B2 (en) 2005-03-22 2008-05-27 Fairchild Semiconductor Corporation Single-stage digital power converter for driving LEDs
CN100413191C (zh) * 2005-03-30 2008-08-20 昂宝电子(上海)有限公司 用于控制电源变换器中的开关频率变化的系统和方法
US7064531B1 (en) 2005-03-31 2006-06-20 Micrel, Inc. PWM buck regulator with LDO standby mode
US7375476B2 (en) 2005-04-08 2008-05-20 S.C. Johnson & Son, Inc. Lighting device having a circuit including a plurality of light emitting diodes, and methods of controlling and calibrating lighting devices
US7456621B2 (en) * 2005-05-06 2008-11-25 Silicon Laboratories Inc. Digital controller based power factor correction circuit
KR100587022B1 (ko) 2005-05-18 2006-06-08 삼성전기주식회사 디밍 회로를 갖는 led 구동회로
DE102006022845B4 (de) 2005-05-23 2016-01-07 Infineon Technologies Ag Ansteuerschaltung für eine Schaltereinheit einer getakteten Leistungsversorgungsschaltung und Resonanzkonverter
US7106603B1 (en) 2005-05-23 2006-09-12 Li Shin International Enterprise Corporation Switch-mode self-coupling auxiliary power device
JP2006333053A (ja) * 2005-05-26 2006-12-07 Renesas Technology Corp アナログデジタル変換器
US7336127B2 (en) 2005-06-10 2008-02-26 Rf Micro Devices, Inc. Doherty amplifier configuration for a collector controlled power amplifier
US7388764B2 (en) 2005-06-16 2008-06-17 Active-Semi International, Inc. Primary side constant output current controller
US7145295B1 (en) 2005-07-24 2006-12-05 Aimtron Technology Corp. Dimming control circuit for light-emitting diodes
WO2007016373A2 (en) 2005-07-28 2007-02-08 Synditec, Inc. Pulsed current averaging controller with amplitude modulation and time division multiplexing for arrays of independent pluralities of light emitting diodes
TWI277225B (en) 2005-08-03 2007-03-21 Beyond Innovation Tech Co Ltd Apparatus of light source and adjustable control circuit for LEDs
EP1922905B1 (en) 2005-08-17 2012-07-04 Koninklijke Philips Electronics N.V. Digitally controlled luminaire system
WO2007026170A2 (en) 2005-09-03 2007-03-08 E-Light Limited Improvements to lighting systems
US7249865B2 (en) 2005-09-07 2007-07-31 Plastic Inventions And Patents Combination fluorescent and LED lighting system
EP1948356B1 (en) 2005-11-11 2014-01-15 L&L Engineering LLC Non-linear controller for a switching power supply
US7099163B1 (en) 2005-11-14 2006-08-29 Bcd Semiconductor Manufacturing Limited PWM controller with constant output power limit for a power supply
US7856566B2 (en) 2005-11-29 2010-12-21 Power Integrations, Inc. Standby arrangement for power supplies
TWI293543B (en) 2005-12-07 2008-02-11 Ind Tech Res Inst Illumination brightness and color control system and method thereof
KR101243402B1 (ko) 2005-12-27 2013-03-13 엘지디스플레이 주식회사 액정표시소자의 하이브리드 백라이트 구동 장치
US7183957B1 (en) 2005-12-30 2007-02-27 Cirrus Logic, Inc. Signal processing system with analog-to-digital converter using delta-sigma modulation having an internal stabilizer loop
US7656103B2 (en) 2006-01-20 2010-02-02 Exclara, Inc. Impedance matching circuit for current regulation of solid state lighting
US7310244B2 (en) 2006-01-25 2007-12-18 System General Corp. Primary side controlled switching regulator
KR100755624B1 (ko) 2006-02-09 2007-09-04 삼성전기주식회사 필드 순차 칼라 모드의 액정 표시 장치
WO2007094810A2 (en) 2006-02-10 2007-08-23 Color Kinetics Incorporated Methods and apparatus for high power factor controlled power delivery using a single switching stage per load
US20080018261A1 (en) * 2006-05-01 2008-01-24 Kastner Mark A LED power supply with options for dimming
CN101127495B (zh) 2006-08-16 2010-04-21 昂宝电子(上海)有限公司 用于为开关式电源提供控制的系统和方法
US7733034B2 (en) 2006-09-01 2010-06-08 Broadcom Corporation Single inductor serial-parallel LED driver
DE602006010716D1 (de) 2006-10-11 2010-01-07 Mitsubishi Electric Corp Taktgenerator mit verteilter Periode
US20080154679A1 (en) 2006-11-03 2008-06-26 Wade Claude E Method and apparatus for a processing risk assessment and operational oversight framework
US7859859B2 (en) * 2006-11-20 2010-12-28 Picor Corporation Primary side sampled feedback control in power converters
US7902771B2 (en) 2006-11-21 2011-03-08 Exclara, Inc. Time division modulation with average current regulation for independent control of arrays of light emitting diodes
US7864546B2 (en) * 2007-02-13 2011-01-04 Akros Silicon Inc. DC-DC converter with communication across an isolation pathway
US7667986B2 (en) * 2006-12-01 2010-02-23 Flextronics International Usa, Inc. Power system with power converters having an adaptive controller
US7675759B2 (en) * 2006-12-01 2010-03-09 Flextronics International Usa, Inc. Power system with power converters having an adaptive controller
EP2092506A1 (en) 2006-12-13 2009-08-26 Koninklijke Philips Electronics N.V. Method for light emitting diode control and corresponding light sensor array, backlight and liquid crystal display
JP2008159550A (ja) 2006-12-26 2008-07-10 Toshiba Corp バックライト制御装置及びバックライト制御方法
KR101357006B1 (ko) 2007-01-18 2014-01-29 페어차일드코리아반도체 주식회사 컨버터 및 그 구동 방법
US8362838B2 (en) 2007-01-19 2013-01-29 Cirrus Logic, Inc. Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US7288902B1 (en) 2007-03-12 2007-10-30 Cirrus Logic, Inc. Color variations in a dimmable lighting device with stable color temperature light sources
US7852017B1 (en) 2007-03-12 2010-12-14 Cirrus Logic, Inc. Ballast for light emitting diode light sources
US7560677B2 (en) 2007-03-13 2009-07-14 Renaissance Lighting, Inc. Step-wise intensity control of a solid state lighting system
GB2447873B (en) 2007-03-30 2009-07-29 Cambridge Semiconductor Ltd Forward power converter controllers
CN101282079B (zh) * 2007-04-05 2011-06-01 昂宝电子(上海)有限公司 用于功率控制器的系统和方法
US7480159B2 (en) * 2007-04-19 2009-01-20 Leadtrend Technology Corp. Switching-mode power converter and pulse-width-modulation control circuit with primary-side feedback control
US7554473B2 (en) 2007-05-02 2009-06-30 Cirrus Logic, Inc. Control system using a nonlinear delta-sigma modulator with nonlinear process modeling
US7974109B2 (en) 2007-05-07 2011-07-05 Iwatt Inc. Digital compensation for cable drop in a primary side control power supply controller
TW200849778A (en) * 2007-06-13 2008-12-16 Richtek Technology Corp Method and device to improve the light-load performance of switching-type converter
JP4239111B2 (ja) 2007-06-14 2009-03-18 サンケン電気株式会社 Ac−dcコンバータ
US20090070188A1 (en) 2007-09-07 2009-03-12 Certus Limited (Uk) Portfolio and project risk assessment
CN101414193A (zh) * 2007-10-16 2009-04-22 鸿富锦精密工业(深圳)有限公司 电源自动切换电路
US7656687B2 (en) 2007-12-11 2010-02-02 Cirrus Logic, Inc. Modulated transformer-coupled gate control signaling method and apparatus
US7821333B2 (en) 2008-01-04 2010-10-26 Texas Instruments Incorporated High-voltage differential amplifier and method using low voltage amplifier and dynamic voltage selection
US7872883B1 (en) * 2008-01-29 2011-01-18 Fairchild Semiconductor Corporation Synchronous buck power converter with free-running oscillator
US8008898B2 (en) * 2008-01-30 2011-08-30 Cirrus Logic, Inc. Switching regulator with boosted auxiliary winding supply
US7750738B2 (en) 2008-11-20 2010-07-06 Infineon Technologies Ag Process, voltage and temperature control for high-speed, low-power fixed and variable gain amplifiers based on MOSFET resistors
US7777563B2 (en) 2008-12-18 2010-08-17 Freescale Semiconductor, Inc. Spread spectrum pulse width modulation method and apparatus
US7994863B2 (en) 2008-12-31 2011-08-09 Cirrus Logic, Inc. Electronic system having common mode voltage range enhancement
US8248040B2 (en) * 2009-11-12 2012-08-21 Polar Semiconductor Inc. Time-limiting mode (TLM) for an interleaved power factor correction (PFC) converter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105703617A (zh) * 2010-08-18 2016-06-22 芬斯克斯有限公司 多路径功率因数校正的方法及功率变换器
US11038428B2 (en) 2010-08-18 2021-06-15 Finsix Corporation Multi-path power factor correction
CN104038043A (zh) * 2013-03-05 2014-09-10 立锜科技股份有限公司 Pfc转换器的电源管理ic、控制方法、检测器及方法
CN104038043B (zh) * 2013-03-05 2016-05-11 立锜科技股份有限公司 Pfc转换器的电源管理ic、控制方法、检测器及方法
CN105265017A (zh) * 2013-03-11 2016-01-20 皇家飞利浦有限公司 使用补偿电流控制的供电电流变化的减小
CN105265017B (zh) * 2013-03-11 2017-09-08 飞利浦照明控股有限公司 使用补偿电流控制的供电电流变化的减小

Also Published As

Publication number Publication date
US7863828B2 (en) 2011-01-04
US7888922B2 (en) 2011-02-15
CN101743683A (zh) 2010-06-16
CN101720526B (zh) 2013-10-23
EP2153512A2 (en) 2010-02-17
WO2008137679A1 (en) 2008-11-13
US20080272746A1 (en) 2008-11-06
CN101675593A (zh) 2010-03-17
EP2153511A1 (en) 2010-02-17
US20120194143A1 (en) 2012-08-02
US7719248B1 (en) 2010-05-18
US7719246B2 (en) 2010-05-18
US20080272945A1 (en) 2008-11-06
US8120341B2 (en) 2012-02-21
JP2010526496A (ja) 2010-07-29
WO2008137684A1 (en) 2008-11-13
US7554473B2 (en) 2009-06-30
WO2008137315A1 (en) 2008-11-13
CN101730972A (zh) 2010-06-09
EP2153513A1 (en) 2010-02-17
WO2008137656A3 (en) 2009-05-07
EP2153511B1 (en) 2011-01-12
CN101675577A (zh) 2010-03-17
US7894216B2 (en) 2011-02-22
WO2008137655A1 (en) 2008-11-13
ATE495569T1 (de) 2011-01-15
US20080272756A1 (en) 2008-11-06
US20080273356A1 (en) 2008-11-06
US20110103111A1 (en) 2011-05-05
US7746043B2 (en) 2010-06-29
US20080272755A1 (en) 2008-11-06
EP2151042A1 (en) 2010-02-10
US20080272748A1 (en) 2008-11-06
WO2008137652A1 (en) 2008-11-13
US7821237B2 (en) 2010-10-26
US20080272745A1 (en) 2008-11-06
CN101675593B (zh) 2014-07-02
EP2151061A1 (en) 2010-02-10
EP2151061B1 (en) 2017-10-18
US8040703B2 (en) 2011-10-18
US8125805B1 (en) 2012-02-28
WO2008137656A2 (en) 2008-11-13
DE602008004510D1 (de) 2011-02-24
US20080272757A1 (en) 2008-11-06
WO2008137654A1 (en) 2008-11-13
CN101743683B (zh) 2013-11-27
US20080272758A1 (en) 2008-11-06
US20080272747A1 (en) 2008-11-06
US20080272744A1 (en) 2008-11-06
US7969125B2 (en) 2011-06-28

Similar Documents

Publication Publication Date Title
CN101720526B (zh) 可减少反馈信号的功率因数校正控制器
CN102468768B (zh) 对电变换器非线性的补偿装置及方法
CN103296904B (zh) 功率因数校正恒流控制器及控制方法
CN109361318B (zh) 基于dab的单级隔离型pfc变换器直接电流控制系统及控制方法
CN102801300B (zh) 原边反馈控制的开关电源线损补偿系统及方法
CN201352769Y (zh) 实现恒定输出电流的初级控制的功率变换器
CN104333227B (zh) 电源系统和设备
CN103607111B (zh) 提高功率因数校正电路中的效率的方法和装置
CN103168409B (zh) 用于从电力源提取电力的切换电路和相关方法
US9413270B2 (en) Single-phase three-wire power control system and power control method therefor
CN105099188B (zh) Dc-dc变换器
CN107579670A (zh) 一种同步整流原边反馈反激式电源的恒压输出控制系统
CN102545562A (zh) 降低电变换器中的谐波畸变的系统和方法
CN109818501B (zh) 具有频率-接通时间转换器的控制器
CN101546963A (zh) 一种pfc变换器的数字单周控制方法
US20210057934A1 (en) Multilevel switched-capacitor ac-dc rectifier for wireless charging with power regulation
CN100433513C (zh) 一种功率因数校正电路的控制方法
CN101610024A (zh) 具频率抖动的频率发生器及脉宽调制控制器
CN202183733U (zh) 实现输出端电压恒定的功率变换器
CN103314514A (zh) 切换模式电力供应器中的效率最优化、经校准无传感器的电力/能量转换
CN101388596A (zh) 低通滤波器
CN102957319A (zh) 电源转换器脉宽调变控制电路及其控制方法
RU92261U1 (ru) Преобразователь однофазного переменного напряжения в постоянное с корректором коэффициента мощности
Qiu et al. On the use of current sensors for the control of power converters
CN107222088A (zh) 控制模块、切换式电源供应装置及峰值电流模式控制方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20131023

CF01 Termination of patent right due to non-payment of annual fee