CN105811752A - 一种可调节输出电压的恒压驱动设备 - Google Patents

一种可调节输出电压的恒压驱动设备 Download PDF

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CN105811752A
CN105811752A CN201410849070.4A CN201410849070A CN105811752A CN 105811752 A CN105811752 A CN 105811752A CN 201410849070 A CN201410849070 A CN 201410849070A CN 105811752 A CN105811752 A CN 105811752A
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CN105811752B (zh
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胡森
吴印超
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ADPOWER TECHNOLOGY (WUXI) 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
    • H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
    • H02M1/4208—Arrangements for improving power factor of AC input
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/275—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
    • H02M5/293—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
    • G05F1/45—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load
    • G05F1/455—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load with phase 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
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/275—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
    • H02M5/293—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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
    • H02M5/2932—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc 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, current or power
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/04—Controlling
    • H05B39/041—Controlling the light-intensity of the source
    • H05B39/044—Controlling the light-intensity of the source continuously
    • H05B39/048—Controlling the light-intensity of the source continuously with reverse phase control
    • 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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Abstract

本发明一种可调节输出电压的恒压驱动设备，它包括斩波结构、交流电源电压检测模块、交流电压信号偏置模块、带有乘法器的功率因数校正控制器、功率因数校正及能量转换传输模块、输出控制模块、参考信号发生模块、交流电源相角检测模块和相角信息传输模块。本发明实现了输出的电压不仅是恒定而且是可以调节的，既保证了输出跟随输入相角信息变化又能给斩波结构提供维持正常工作的电流；适用于更大的功率范围，兼容性好，适应性强。

Description

一种可调节输出电压的恒压驱动设备
技术领域
本发明涉及一种电压驱动设备，特别是涉及一种可调节输出电压的恒压驱动设备。
背景技术
目前针对根据斩波角度调节输出电压的恒压驱动设备例如LED灯恒压调光，调整范围窄，兼容性差，能带负载功率范围也很窄，需要将特定功率的灯带配合特定参数的驱动电源才能获得较好的调整效果。
现有电压驱动设备的输出控制方式是控制输出功率，例如对于LED灯当发生调光时输出电流和输出电压都在变化，造成LED灯的色谱发生变化，应用不理想。
发明内容
本发明的目的在于克服现有技术的缺陷，提供一种可调节输出电压的恒压驱动设备，保证了输出跟随输入相角信息变化，实现输入高功率因数、低总谐波失真和良好的兼容性。
实现上述目的的技术方案是：
本发明一种可调节输出电压的恒压驱动设备，其中，所述可调节输出电压的恒压驱动设备包括斩波结构、交流电源电压检测模块、交流电源相角检测模块、相角信息传输模块、交流电压信号偏置模块、参考信号发生模块、带有乘法器的功率因数校正控制器、功率因数校正及能量转换传输模块和输出控制模块，其中：
所述斩波结构同时联接到交流电源电压检测模块、交流电源相角检测模块和功率因数校正及能量转换传输模块；
所述交流电源电压检测模块、交流电压信号偏置模块联接、带有乘法器的功率因数校正控制器、功率因数校正及能量转换传输模块和输出控制模块依次联接，所述参考信号模块和带有乘法器的功率因数校正控制器联接；
所述交流电源相角检测模块、相角信息传输模块和输出控制模块依次联接。
上述的可调节输出电压的恒压驱动设备，其中，所述交流电源相角检测模块为导通角检测模块。
上述的可调节输出电压的恒压驱动设备，其中，所述相角信息传输模块为导通角信息传输模块。
上述的可调节输出电压的恒压驱动设备，其中，所述功率因数校正及能量转换传输模块采用共用磁性器件的单级结构。
上述的可调节输出电压的恒压驱动设备，其中，所述功率因数校正及能量转换传输模块采用功不同磁性器件的两级结构。
上述的可调节输出电压的恒压驱动设备，其中，所述参考信号发生模块为固定信号发生模块。
上述的可调节输出电压的恒压驱动设备，其中，所述参考信号发生模块为可变信号发生模块。
上述的可调节输出电压的恒压驱动设备，其中，所述输出控制模块为采用MOSFET的输出控制模块。
上述的可调节输出电压的恒压驱动设备，其中，所述输出控制模块为采用调节恒压控制芯片输出电压的输出控制模块。
本发明的有益效果是：本发明提供可调节输出电压的恒压驱动设备，实现了将经过斩波结构斩波的电压信息通过带有乘法器模块的功率因素校正芯片处理后控制功率因数校正及能量传输模块，输出的电压不仅是恒定而且是可以调节的，既保证了输出跟随输入相角信息变化又能给斩波结构提供维持正常工作的电流，最终实现输入高功率因数(PF)、低总谐波失真(THD)和良好的兼容性；通过将输入电压的相角信息调理之后控制输出电压，实现小于1％的调压深度并且在超过10％～100％的负载范围都有很好的兼容性；本发明适用于更大的功率范围，兼容性好，适应性强。
附图说明
图1是本发明一种可调节输出电压的恒压驱动设备的结构示意图。
图2是本发明经过斩波结构的电压与经过交流电压信号偏置模块调理后的电压关系图。
图3是本发明经过斩波结构的电压与带有乘法器的功率因数校正控制器的输出信号随时间变化的工作情况对照图。
具体实施方式
下面将结合附图对本发明作进一步说明。
请参阅图1、图2和图3，本发明一种可调节输出电压的恒压驱动设备，其中，所述可调节输出电压的恒压驱动设备包括斩波结构1、交流电源电压检测模块2、交流电压信号偏置模块3、带有乘法器的功率因数校正控制器4、功率因数校正及能量转换传输模块5、输出控制模块6、参考信号发生模块7、交流电源相角检测模块8和相角信息传输模块9。
所述斩波结构1同时联接到交流电源电压检测模块2、交流电源相角检测模块8和功率因数校正及能量转换传输模块5。
所述交流电源电压检测模块2、交流电压信号偏置模块3、带有乘法器的功率因数校正控制器4、功率因数校正及能量转换传输模块5和输出制模块6依次联接，所述带有乘法器的功率因数校正控制器4和参考信号模块7联接。
所述交流电源相角检测模块8、相角信息传输模块9和输出控制模块6依次联接。其中所述交流电源相角检测模块8可为平均电压检测模块，相角信息传输模块9也随之为平均电压传输模块。
当对本发明设备输入交流电压，斩波结构1对输入交流电压进行斩波。斩波后的电压通过交流电源电压检测模块2检测交流电源的电压信息，然后通过交流电压信号偏置模块3调整并传输给带有乘法器的功率因数校正控制器4，参考信号发生模块7产生参考信息并传输给带有乘法器的功率因数校正控制器4，带有乘法器的功率因数校正控制器4根据参考信号与经过交流电压信号偏置模块3偏置的交流电源电压检测信号控制开关的占空比，实现系统输入电流跟随输入电压变化的结果。带有乘法器的功率因数校正控制器4进行功率因数校正，利用和功率因数校正相同的线路为斩波结构1提供维持正常工作的电流。参考信号发生模块7的参考信号可以是固定信号，也可以是根据需要的可变信号。交流电压信号偏置模块3的作用是：当交流电源被切相时，保证带有乘法器的功率因数校正控制器4的输出电压信号总是大于0V，以保证功率因数校正的MOS管的导通，从而给斩波结构1提供稳定的泄放回路。
功率因数校正及能量转换传输模块5的作用是：将输入交流电压进行功率因数校正并转换成合适的电压并传输给输出控制模块6，输出控制模块6根据相角信息传输模块传输过来的交流电源相角信息控制输出电压，输出电压根据相角信息可以在零到额定电压的范围内变化从而实现较大负载功率范围、较大调节范围内稳定工作。功率因数校正及能量转换传输模块5可采用共用磁性器件的单级结构，也可采用不同磁性器件的两级结构。现有的开关电源均可作为实现能量转换传输模块，但功率因数校正及能量转换传输模块5能将整流后的高压直流电源实现功率因数校正，转换成恒压电源传输给输出控制模块6，并给斩波结构1提供稳定的泄放回路。
输出控制模块6根据输入交流电源的导通角调整输出电压。输出控制模块6可为采用MOSFET的输出控制模块，当输出控制模块6导通时输出电压跟随能量转换与传输模块的输出电压变化；也可为恒压控制芯片控制输出电压的输出控制模块，能够控制恒压输出的芯片的输出电压，并且输出电压保持恒定。通过输出控制模块6控制输出电压，能很容易与数字处理芯片连接，容易实现更多功能，适应不同的需求。
本发明将输入电压信息通过带有乘法器模块的功率因数校正控制器4处理后，输出电压不仅是恒定的，而且是可以调节的，实现既能保证输出跟随输入相角信息变化又能给斩波结构1提供的维持电流，实现输入高功率因数(PF)、低总谐波失真(THD)和良好的斩波结构1兼容性。本发明通过输出控制模块6控制输出，不会使LED灯带产生任何LED色谱偏移。本发明适用于更大的功率范围，兼容性好，适应性强。
以上结合附图实施例对本发明进行了详细说明，本领域中普通技术人员可根据上述说明对本发明做出种种变化例。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。因而，实施例中的某些细节不应构成对本发明的限定，本发明将以所附权利要求书界定的范围作为本发明的保护范围。

Claims (7)

1.一种可调节输出电压的恒压驱动设备，其特征在于：所述可调节输出电压的恒压驱动设备包括斩波结构、交流电源电压检测模块、交流电压信号偏置模块、带有乘法器的功率因数校正控制器、功率因数校正及能量转换传输模块、输出控制模块、参考信号发生模块、交流电源相角检测模块和相角信息传输模块，其中：
所述斩波结构同时联接到交流电源电压检测模块、交流电源相角检测模块和功率因数校正及能量转换传输模块；
所述交流电源电压检测模块、交流电压信号偏置模块联接、带有乘法器的功率因数校正控制器、能量转换传输模块和输出控制模块依次联接，所述参考信号发生模块和带有乘法器的功率因数校正控制器联接；
所述交流电源相角检测模块、相角信息传输模块和输出控制模块依次联接。
2.根据权利要求1所述的可调节输出电压的恒压驱动设备，其特征在于：所述功率因数校正及能量转换传输模块采用共用磁性器件的单级结构。
3.根据权利要求1所述的可调节输出电压的恒压驱动设备，其特征在于：所述功率因数校正及能量转换传输模块采用功不同磁性器件的两级结构。
4.根据权利要求1所述的可调节输出电压的恒压驱动设备，其特征在于：所述参考信号发生模块为固定信号发生模块。
5.根据权利要求1所述的可调节输出电压的恒压驱动设备，其特征在于：所述参考信号发生模块为可变信号发生模块。
6.根据权利要求1所述的可调节输出电压的恒压驱动设备，其特征在于：所述输出控制模块为采用MOSFET元件的输出控制模块。
7.根据权利要求1所述的可调节输出电压的恒压驱动设备，其特征在于：所述输出控制模块为采用调节恒压控制芯片输出电压的输出控制模块。
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