CN101636702B - 双向调节器 - Google Patents

双向调节器 Download PDF

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CN101636702B
CN101636702B CN200780035475.2A CN200780035475A CN101636702B CN 101636702 B CN101636702 B CN 101636702B CN 200780035475 A CN200780035475 A CN 200780035475A CN 101636702 B CN101636702 B CN 101636702B
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voltage
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power
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load
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CN101636702A (zh
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M·D·特勒富斯
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Flex Electronics Co ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1588—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load comprising at least one synchronous rectifier element
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33507—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters
    • H02M3/33515—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of the output voltage or current, e.g. flyback converters with digital control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes

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

Abstract

本发明提供了一种稳压电源装置。该装置包含用于生成整流电压信号的输入功率转换电路，包括多个开关元件的输出功率转换电路，该输出功率转换电路耦合以接收所述整流电压信号；与输出功率转换电路耦连的输出功率存储元件，以及输出功率双向调节电路，其包括与所述输出功率转换电路耦连的集成电路，所述双向调节电路包含控制信号，该控制信号用于操作开关元件以将功率存储在输出功率存储元件上，并将功率从输出功率存储元件传送给输出负载。提供集成电路控制调节电路以控制多个开关升降压转换器。还提供了一种调节电源的方法。

Description

双向调节器
相关申请
本申请要求2006年9月25日提交的序列号为60/847,350，题为“双向调节器”的美国临时专利申请的优先权，该临时专利申请通过引用整体地结合到本文中。
技术领域
本发明涉及电源领域。尤其是，本发明涉及与电源装置一起使用的集成电路调节器。
背景技术
在许多应用中，要求电压调节器提供处于预定范围内的电压。如果输入电源超出某范围，那么一些电路就会遭受不确定且不合乎需要的作用甚至是不可修理的损坏。
图6中示出了现有的稳压电源600。输入功率转换电路可包括：交流发电机604、并联耦合到输入Vin的整流器607、同样并联耦合到输入Vin且与变压器610的初级端耦连的电容器605、在漏极处与变压器210的初级端耦连的开关608、以及与开关608的栅极耦连的脉宽调制器(PWM)模块606。输入功率转换电路还可包括整流二极管620和电容器618，其与变压器210的次级端并联耦合。电源600可包括电压调节电路，该电压调节电路具有光耦合器电路612和齐纳(稳压)二极管622。电源600采用PWM模块606来改变开关608的占空比。光耦合器电路612与齐纳(稳压)二极管622共同合作给PWM模块606提供反馈。PWM模块606相应地调节开关608的占空比以补偿负载623的输出电压Vout中的任何变化。电容器C1还为电源600提供基本的滤波。然而，这种类型的电源所要求的电容器C1的尺寸惊人地大。
因此，期望制作一种稳压电源，以大大减小滤波电容器C1的尺寸。
发明内容
本发明用于功率共享、电压共享调节。双向块是与负载并联耦合的部分功率调节器。功率存储设备选择性地用于当感测到的电压超过阈值时存储能量，而当感测到的电压低于阈值时提供能量。这些技术提供了比先前现有的电路更有效的电路。此外，本发明降低了传统闭环系统的复杂性。
根据本发明的第一个方面，提供了一种稳压电源装置。该装置包括用于生成整流电压信号的输入功率转换电路。输出功率转换电路包括多个开关元件。该输出功率转换电路被耦合以接收整流电压信号。输出功率存储元件与输出功率转换电路耦连。输出功率双向调节电路包括与输出功率转换电路耦连的集成电路。该双向调节电路包括控制信号，其用于操作开关元件以将功率存储到输出功率存储元件中，并从输出功率存储元件中输送功率给输出负载。
根据本发明的第二个方面，提供了一种调节电源装置的方法。该方法包括用输出功率双向调节电路采样施加到负载上的电压。该调节电路包括控制信号，其耦合到多个开关元件以操作该开关元件使其选择性地作为用于供电的装置的升压和降压变换器。用双向调节电路来感测电压。当施加到负载上的电压超过阈值时，将功率存储在功率存储元件中。当施加到负载上的电压低于阈值时，给负载提供补偿功率。
根据本发明的另一个方面，提供了一种双向功率调节电路。该电路包括用于接收整流信号的输入。该输入与感应元件耦连。第一开关元件的漏极与该感应元件耦连，第二开关元件的漏极与该感应元件耦连。集成电路调节器包含第一控制信号和第二控制信号，以控制第一和第二开关元件，第一控制信号与第一开关元件的栅极耦连，第二控制信号与第二开关元件的栅极耦连。
下述结合附图的说明将使得本发明的其他特征变得更加清楚。
附图说明
在所附的权利要求书中提出了本发明的新颖的特征。然而，为了解释起见，下述图中提出了本发明的一些实施例。
图1示出了根据本发明实施例的用于调节电源电压的装置的功能框图；
图2示出了根据本发明实施例的用于调节电源电压的装置的原理图；
图3示出了根据本发明的变换实施例的用于调节电源电压的装置的原理图；
图4示出了根据本发明的调节电压Vreg和输出Vout的波形图；
图5示出了根据本发明的调节电源装置的方法的过程流程图；
图6示出了现有的功率调节电路。
具体实施方式
在下面的说明书中，出于解释的目的提出了众多细节和供选方案。然而，本领域任何普通技术人员均应认识到本发明可以在不采用这些特定的细节的情况下实现。在其他情况下，以框图形式示出了公知的结构和设备，其并不是为了用不必要的细节来使本发明的说明书难以理解。
来看图1，示出了根据本发明的稳压电源装置10的功能框图。装置10一般包括输入功率转换电路14，该输入功率转换电路14也称为交流到直流转换器，其与输出功率转换电路15耦连，该输出功率转换电路15选择性地包括升压转换器16和降压转换器18。输出功率双向调节电路或双向调节器20被耦合以选择性地控制该升压转换器16和降压转换器18。例如电容器的输出功率存储电路22与升压转换器16和降压转换器18耦连。交流到直流转换器14经由例如变压器的隔离设备来与升压转换器16和降压转换器18耦连。
交流到直流转换器14被耦合以接收交流电Vac，并生成未调节的直流电，该直流电被耦合以作为功率转换电路15的输入。典型地，双向调节器20选择性地操作升压转换器16和降压转换器18以维持恒定的输出电压Vout。双向调节器20感测Vout中的功率下降和功率增长，并控制补偿功率的供给以校正Vout中的功率增长或功率下降。双向调节器20能够通过操作升压转换器16以将额外的功率从负载传送给功率存储电路22来防止电压Vout超过阈值。相反地，双向调节器20也能够通过操作降压转换器20以将额外的功率从功率存储电路22传送给负载来防止电压Vout降到低于阈值。
来看图2，示出了根据本发明的稳压电源装置200的原理图。装置200一般包括用于生成未调节电压信号的输入功率转换电路14。输出功率转换电路15与输入功率转换电路14耦连以接收未调节电压信号。输出功率存储元件232与输出功率转换电路15耦连。输出功率双向调节电路或双向调节器202耦合以控制输出功率转换电路15.
输入功率转换电路14可包含交流发电机204和并联耦合到输入Vin的整流器207。电容器205也并联耦合到输入Vin且与变压器210的初级端耦连。开关208的源极与变压器210的初级端耦连，且该开关208的栅极与脉宽调制器模块206耦连。输入功率转换电路14也可包括整流二极管220。在一些应用中，滤波电容器218可以非常小或者可被除去。
输出功率转换电路15包含感应器224，其被耦合以从交流到直流转换器14中接收输出信号并提供给输出Vout。第一开关元件226的漏极与感应器224耦连。第二开关元件228的漏极与感应器224耦连。负载223与输出Vout并联耦合。输出功率存储电路232优选地包含电容器。通过控制第二开关元件228以作为二极管且控制第一开关元件226以作为开关来将功率存储在感应器224和电容器232中，从而形成升压转换器16。通过控制第一开关元件226以作为二极管、控制第二开关元件226以作为开关、控制感应器224以从电容器232中输送功率给负载223来形成所述降压转换器18。
双向调节器202可包含控制信号202-1到202-8。该控制信号202-1到202-8提供使能信号和定时(timing)信号，以控制第一和第二开关元件226、228。控制信号202-1与输出Vout耦连。控制信号202-2与第一开关元件226的栅极耦连。控制信号202-3与第二开关元件228的栅极耦连。控制信号202-4与第二开关元件228的源极以及电容器232耦连。
控制信号202-2可启动第一开关元件226的开关功能，而控制信号202-3能够启动第二开关元件228的开关功能。第一和第二开关元件226、228也能够起到二极管的作用。当第一和第二开关元件226、228的栅极到源极电压设为0V且源极电压大于漏极电压时，启动第一和第二开关元件226、228的二极管功能。控制信号202-1用于感测在输出Vout上施加的电压。可以在双向调节器内用分压器生成阈值或参考电压Vref。
交流发电机204提供交流电压给整流器207，其生成直流输入Vin。具有开关208的模块206将电压Vin切分为高频输入给变压器210。变压器210的输出被整流二极管220整流，且被电容器218滤波以给负载223提供未调节的整流直流电。双向调节器202感测施加到负载223上的电压Vout。可以用控制信号202-1来感测所施加的电压Vout。如果所施加的电压Vout超过参考电压Vref或者低于参考电压，则将所施加的电压Vout与参考电压Vref进行比较以确定位于预定范围之内。如果所施加的电压Vout超过参考电压Vref，则启动升压转换器16。控制信号202-2用于启动第一开关元件226的开关功能。控制信号202-3用于控制第二开关元件228以作为二极管。操作升压转换器16以从所施加的电压Vout传送额外的功率，并将该额外的功率存储在功率存储元件232中。启动升压转换器16，直到所施加的电压Vout回归到参考电压Vref的预定范围内为止。
如果所施加的电压Vout低于参考电压Vref，则启动降压转换器16。控制信号202-3用于启动第二开关元件228的开关功能。控制信号202-2用于控制第一开关元件226以作为二极管。操作降压转换器18以从功率存储元件232中传送补偿功率给负载223。启动降压转换器18，直到所施加的电压Vout回归到参考电压Vref的预定范围内为止。
来看图3，示出了根据本发明的稳压电源装置300的变换实施例的原理图。装置300一般包括用于生成未调节电压信号的输入功率转换电路14。输出功率转换电路15与输入功率转换电路14耦连以接收未调节电压信号。输出功率存储元件332与输出功率转换电路15耦连。输出功率双向调节电路或双向调节器302耦合以控制输出功率转换电路15。
输入功率转换电路14可以包括交流发电机304和整流器307，该整流器307并联耦合到输入Vin。电容器305也并联耦合到输入Vin且与变压器310的初级端耦连。二矩阵或四矩阵开关308与变压器310的初级端耦连，脉宽调制器(PWM)模块306与开关308耦连。输入功率转换电路14还可包括全波桥320。在一些应用中，滤波电容器318可以非常小或者可被去除。
输出功率转换电路15包括感应器324，其被耦合以从交流到直流转换器14中接收输出信号并提供给输出Vout。第一开关元件326的漏极与感应器324耦连。第二开关元件328的漏极与感应器324耦连。负载323与输出Vout并联耦合。输出功率存储电路332优选地包括电容器。通过控制第二开关元件328以作为二极管，且控制第一开关元件326以作为开关来将功率存储在感应器324和电容器332中，从而形成升压转换器16。通过控制第一开关元件326以作为二极管、控制第二开关元件326以作为开关、控制感应器324以从电容器332中输送功率给负载323来形成所述降压转换器18。
双向调节器302可包括控制信号302-1到302-8。该控制信号302-1到302-8提供使能信号和定时(timing)信号，以控制第一和第二开关元件326、328。控制信号302-1与输出Vout耦连。控制信号302-2与第一开关元件326的栅极耦连。控制信号302-3与第二开关元件328的栅极耦连。控制信号302-4与第二开关元件328的源极以及电容器332耦连。
控制信号302-2可启动第一开关元件326的开关功能，而控制信号302-3能够启动第二开关元件328的开关功能。第一和第二开关元件326、328也能够起到二极管的作用。当第一和第二开关元件326、328的栅极到源极电压设为0V且源极电压大于漏极电压时，启动第一和第二开关元件326、328的二极管功能。控制信号302-1用于感测在输出Vout上施加的电压。可以在双向调节器内用分压器生成阈值或参考电压Vref。
交流发电机304提供交流电压给整流器307，其生成直流输入Vin。具有二矩阵或四矩阵开关308的模块306将电压Vin切分为高频输入给变压器310。变压器310的输出被全波桥320整流，且被电容器318滤波以给负载323提供未调节的整流直流电。双向调节器302感测施加到负载323上的电压Vout。可以用控制信号302-1来感测所施加的电压Vout。如果所施加的电压Vout超过参考电压Vref或者低于参考电压，则将所施加的电压Vout与参考电压Vref进行比较以确定位于预定范围之内。如果所施加的电压Vout超过参考电压Vref，则启动升压转换器16。控制信号302-2用于启动第一开关元件326的开关功能。控制信号302-3用于控制第二开关元件328以作为二极管。操作升压转换器16以从所施加的电压Vout传送额外的功率，并将该额外的功率存储在功率存储元件332中。启动升压转换器16，直到所施加的电压Vout回归到参考电压Vref的预定范围内为止。
如果所施加的电压Vout低于参考电压Vref，则启动降压转换器16。控制信号302-3用于启动第二开关元件328的开关功能。控制信号302-2用于控制第一开关元件326以作为二极管。操作降压转换器18以从功率存储元件332中传送补偿功率给负载323。启动降压转换器18，直到所施加的电压Vout回归到参考电压Vref的预定范围内。
现在来看图4，示出了根据本发明的调节电压Vreg和输出Vout的波形图。双向调节器202(图2)操作升压转换器16和降压转换器18以平滑且减少在输出Vout处感测到的电压脉动。双向调节器202监控或感测输出电压Vout，并与调节电压Vreg进行比较。启动升压转换器16和降压转换器18，直到输出电压Vout回归到预定的电压范围ΔVreg内为止。示出了作为结果的平滑且被调节的电压Vout。
来看附图5，示出了根据本发明的调节电源装置的方法的过程流程图500。该过程开始于步骤505。在步骤510，双向调节器202感测施加在负载223上的电压Vout。可用控制信号202-1来感测所施加的电压Vout。在步骤520，如果所施加的电压Vout超过参考电压Vref或者低于参考电压，则将所施加的电压Vout与参考电压Vref进行比较以确定位于预定范围之内。在步骤525，双向调节器202能够将功率存储在功率存储元件232中。如果所施加的电压Vout超过参考电压Vref，则启动升压转换器16。控制信号202-2用于启动第一开关元件226的开关功能。控制信号202-3用于控制第二开关元件228以作为二极管。操作升压转换器16以从所施加的电压Vout传送额外的功率，并将该额外的功率存储在功率存储元件232中。启动升压转换器16，直到所施加的电压Vout回归到参考电压Vref的预定范围内。
在步骤530，双向调节器202可以给负载223提供补偿功率。如果所施加的电压Vout低于参考电压Vref，则启动降压转换器16。控制信号202-3用于启动第二开关元件228的开关功能。控制信号202-2用于控制第一开关元件226以作为二极管。操作降压转换器18以从功率存储元件232中传送补偿功率给负载223。启动降压转换器18，直到所施加的电压Vout回归到参考电压Vref的预定范围内。
虽然根据许多特定的细节描述了本发明，但是本领域普通技术人员应该意识到本发明能够以不远离本发明的精神的特定形式来实现。因此，本领域普通技术人员应该理解本发明并不局限于前面说明的细节，而是由所附的权利要求来限定。

Claims (15)

1.一种稳压电源装置，包括：
输入功率转换电路，所述输入功率转换电路用于生成整流电压信号；
输出功率转换电路，所述输出功率转换电路包括多个开关元件，所述输出功率转换电路被耦接以接收所述整流电压信号；
输出功率存储元件，所述输出功率存储元件与所述输出功率转换电路相耦接；以及
输出功率双向调节电路，所述输出功率双向调节电路包括与所述输出功率转换电路相耦接的集成电路，所述输出功率双向调节电路包括控制信号，所述控制信号用于操作所述多个开关元件以当施加给负载的电压超过阈值时将额外功率存储在所述输出功率存储元件上以及当施加给所述负载的所述电压小于所述阈值时将额外功率从所述输出功率存储元件提供给负载；
其中，所述装置进一步包括在所述输出功率双向调节电路上的参考输入，所述参考输入用于为所述负载生成参考电压，并且所述输出功率双向调节电路能够执行下面的过程：将所述参考电压与所施加的电压相比较；当采样的所施加的电压大于所述参考电压时，将所述多个开关元件配置为升压转换器，其中通过将额外功率从所施加的电压转移到所述输出功率存储元件，所施加的电压被降低；以及当采样的所施加的电压小于所述参考电压时，将所述多个开关元件配置为降压转换器，其中通过将额外功率从所述输出功率存储元件转移到所施加的电压，所施加的电压被升高。
2.根据权利要求1所述的装置，其中，所述多个开关元件包括第一开关元件和第二开关元件，并且配置所述第一开关元件和所述第二开关元件以使得所述第一开关元件起晶体三极管的作用，并且所述第二开关元件起二极管的作用，其中通过所述输出功率双向调节电路来交替地互相切换所述第一和第二开关元件的功能。
3.根据权利要求1所述的装置，进一步包括在所述输出功率双向调节电路上的感测输入，所述感测输入用于测量所述负载的电压。
4.根据权利要求1所述的装置，其中，所述输出功率存储元件包括电容器。
5.根据权利要求1所述的装置，其中，每个所述开关元件均包括半导体器件。
6.根据权利要求1所述的装置，其中所述输出功率转换电路包括与所述多个开关元件相耦接的感应元件。
7.根据权利要求1所述的装置，其中所述输入功率转换电路被配置为将交流电转换为直流电。
8.一种调节电源装置的方法，包括：
用输出功率双向调节电路采样施加给负载的电压，所述输出功率双向调节电路包括控制信号，所述控制信号被耦合到多个开关元件，用于操作所述多个开关元件以使得所述多个开关元件选择性地充当用于供电的装置的升压和降压转换器；
用所述输出功率双向调节电路来感测所述电压；
将所述电压调节到处于预定的范围内，包括：
当施加给所述负载的所述电压超过阈值时，将额外功率存储在功率存储元件中；以及
当施加给所述负载的所述电压小于所述阈值时，将额外功率供应给所述负载；
从所述输出功率双向调节电路的参考输入生成参考电压；
将所述参考电压与所述施加的电压相比较；
当所述采样的施加的电压大于所述参考电压时配置所述多个开关元件作为所述升压转换器，其中通过将额外功率从所述施加的电压转移到所述功率存储元件，所述施加的电压被降低；以及
当所述采样的施加的电压小于所述参考电压时，配置所述多个开关元件作为所述降压转换器，其中通过将额外功率从所述功率存储元件转移到所述施加的电压，所述施加的电压被升高。
9.根据权利要求8所述的方法，其中，所述多个开关元件包括第一开关元件和第二开关元件，并且配置所述第一开关元件和所述第二开关元件，以使得所述第一开关元件起晶体三极管的作用，并且所述第二开关元件起二极管的作用，其中通过所述控制信号来交替地互相切换所述第一和第二开关元件的功能。
10.根据权利要求8所述的方法，其中所述输出功率双向调节电路包括集成电路，所述集成电路与输出功率转换电路相耦接。
11.根据权利要求8所述的方法，其中使用所述输出功率双向调节电路的感测输入来采样所述施加给所述负载的电压。
12.根据权利要求8所述的方法，其中，所述多个开关元件包括第一开关元件和第二开关元件，并且所述方法进一步包括生成所述控制信号以配置所述第一开关元件和所述第二开关元件，以使得所述第一开关元件起晶体三极管的作用，并且所述第二开关元件起二极管的作用，其中基于所述参考电压和所述施加的电压之间的差异来交替地互相切换所述第一和第二开关元件的功能。
13.根据权利要求8所述的方法，进一步包括与所述多个开关元件相耦接的感应元件。
14.根据权利要求8所述的方法，其中所述功率存储元件包括电容器。
15.根据权利要求8所述的方法，其中每个所述开关元件均包括半导体器件。
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WO2008039526A3 (en) 2008-07-31

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