CN107493014A - 一种大功率输出的反激式电路 - Google Patents

一种大功率输出的反激式电路 Download PDF

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Publication number
CN107493014A
CN107493014A CN201710812112.0A CN201710812112A CN107493014A CN 107493014 A CN107493014 A CN 107493014A CN 201710812112 A CN201710812112 A CN 201710812112A CN 107493014 A CN107493014 A CN 107493014A
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circuit
power output
reverse excitation
totem
triode
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虞晓阳
虞金中
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Wuxi Huahui Jinze Electronic Technology Ltd Co
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Wuxi Huahui Jinze Electronic Technology Ltd Co
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Priority to CN201710812112.0A priority Critical patent/CN107493014A/zh
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/22Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/3353Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
    • 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
    • H02M1/32Means for protecting converters other than automatic disconnection
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/22Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/33569Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements

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

Abstract

本发明涉及一种大功率输出的反激式电路,包括变压器,变压器包括相互独立的至少两个初级线圈,并且每个初级线圈的两端并联连接有开关模块,开关模块包括尖峰吸收电路。本发明的大功率输出的反激式电路输出功率大。

Description

一种大功率输出的反激式电路
技术领域
本发明涉及一种反激式电路,尤其涉及一种大功率输出的反激式电路。
背景技术
反激式电路由于电路简单可靠、适用电压范围广、成本低廉等优点而得到广泛应用,然而其峰值电流大且变压利用率低的缺点一直限制了反激式电路在大功率电源方面的应用,使其只能应用在百多瓦以下的小功率AC-DC变换场合,究其原因有两点,其一,由于反激式电路是磁芯器件的单象限应用,峰值电流大,功率越高功率器件的电流应力越大,从而造成其在大功率应用时可靠性低。其二,由于反激式电路是靠磁芯器件的储能来实现变换的,功率越大变压器的电感越小,漏感也越大,这些不利因素又进一步限制了其功率的增大。
有鉴于上述的缺陷,本设计人,积极加以研究创新,以期创设一种新型结构的大功率输出的反激式电路,使其更具有产业上的利用价值。
发明内容
为解决上述技术问题,本发明的目的是提供一种输出功率大的大功率输出的反激式电路。
本发明的大功率输出的反激式电路,包括变压器,所述变压器包括相互独立的至少两个初级线圈,并且每个初级线圈的两端并联连接有开关模块,所述开关模块包括尖峰吸收电路。
进一步的,本发明的大功率输出的反激式电路,还包括均流限流模块,所述均流限流模块包括图腾柱电路和可控硅模块,所述图腾柱电路的输入端与驱动电源连接,图腾柱电路的输出端通过MOS管与对应的初级线圈连接,所述可控硅模块包括NPN三极管和PNP三极管,所述NPN三极管的集电极与所述PNP三极管的基极连接,NPN三极管的基极与PNP三极管的集电极连接,所述PNP三极管的发射极与驱动电源连接,所述NPN三极管的集电极还与所述图腾柱电路的输入端连接,NPN三极管的基极通过第二二极管与对应的MOS管连接。
进一步的,本发明的大功率输出的反激式电路,所述尖峰吸收电路包括第一二极管、电阻和电容,所述电阻与电容并联连接后与所述第一二极管串联连接。
借由上述方案,本发明至少具有以下优点:本发明的大功率输出的反激式电路,多个开关模块和同一变压器的多个独立初级线圈分别连接,每个开关模块和1个初级线圈组成一路独立的反激式变换电路,通过多个独立反激式电路形成的磁通在变压器中迭加而增大功率的方法,既保持了反激式电路简单可靠的优点又大大增加了其功率容量。此外,均流限流模块实现了对开关模块和变压器的保护。综上所述,本发明的大功率输出的反激式电路输出功率大。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,并可依照说明书的内容予以实施,以下以本发明的较佳实施例并配合附图详细说明如后。
附图说明
图1是本发明的大功率输出的反激式电路的电路图;
图2是一种应用本发明的大功率输出的反激式电路的电路结构图;
图3是图1中均流限流模块的电路结构图;
图4是图2中A部的局部放大图。
图中,1:变压器;2:开关模块;3:第一二极管;4:电阻;5:电容;6:均流限流模块;7:图腾柱电路;8:可控硅模块;9:MOS管;10:NPN三极管;11:PNP三极管。
具体实施方式
下面结合附图和实施例,对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明,但不用来限制本发明的范围。
参见图1至图4,本发明一较佳实施例的一种大功率输出的反激式电路,包括变压器1,变压器包括相互独立的三个初级线圈,并且每个初级线圈的两端并联连接有开关模块2,开关模块包括尖峰吸收电路。
作为优选,本发明的大功率输出的反激式电路,还包括均流限流模块6,均流限流模块包括图腾柱电路7和可控硅模块8,图腾柱电路的输入端与驱动电源连接,图腾柱电路的输出端通过MOS管9与对应的初级线圈连接,可控硅模块包括NPN三极管10和PNP三极管11,NPN三极管的集电极与PNP三极管的基极连接,NPN三极管的基极与PNP三极管的集电极连接,PNP三极管的发射极与驱动电源连接,NPN三极管的集电极还与图腾柱电路的输入端连接,NPN三极管的基极通过第二二极管与对应的MOS管连接。
作为优选,本发明的大功率输出的反激式电路,尖峰吸收电路包括第一二极管3、电阻4和电容5,电阻与电容并联连接后与第一二极管串联连接。
参考图2至图4,一种应用本发明的大功率输出的反激式电路的电路结构,其工作原理如下:
1、当三极管Q2和Q4接受PWM脉冲信号导通,Q2、R12、T1的第一初级线圈流过电流,Q4、R13、T1的第二初级线圈流过电流,T1的磁通量变化正比于此二股电流迭加。
2、当三极管Q2、Q4接受PWM脉冲信号关断时,T1中储存的能量通过T1的次级线圈、D1对外输出。
3、D10、D12和R10采样三极管Q2、Q4的电流信号并送入均流限流模块进行均流、限流处理。
对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,本领域技术人员能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的保护范围由所附权利要求而不是上述说明限定。
此外,以上所述仅是本发明的优选实施方式,并不用于限制本发明,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明技术原理的前提下,还可以做出若干改进和变型,这些改进和变型也应视为本发明的保护范围。同时,应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。

Claims (3)

1.一种大功率输出的反激式电路,其特征在于:包括变压器,所述变压器包括相互独立的至少两个初级线圈,并且每个初级线圈的两端并联连接有开关模块,所述开关模块包括尖峰吸收电路。
2.根据权利要求1所述的大功率输出的反激式电路,其特征在于:还包括均流限流模块,所述均流限流模块包括图腾柱电路和可控硅模块,所述图腾柱电路的输入端与驱动电源连接,图腾柱电路的输出端通过MOS管与对应的初级线圈连接,所述可控硅模块包括NPN三极管和PNP三极管,所述NPN三极管的集电极与所述PNP三极管的基极连接,NPN三极管的基极与PNP三极管的集电极连接,所述PNP三极管的发射极与驱动电源连接,所述NPN三极管的集电极还与所述图腾柱电路的输入端连接,NPN三极管的基极通过第二二极管与对应的MOS管连接。
3.根据权利要求1所述的大功率输出的反激式电路,其特征在于:所述尖峰吸收电路包括第一二极管、电阻和电容,所述电阻与电容并联连接后与所述第一二极管串联连接。
CN201710812112.0A 2017-09-11 2017-09-11 一种大功率输出的反激式电路 Pending CN107493014A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113300609A (zh) * 2021-05-24 2021-08-24 广东东菱电源科技有限公司 单ic驱动多路单级pfc并联电路及其工作方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103745701A (zh) * 2013-12-30 2014-04-23 深圳市华星光电技术有限公司 反激式升压电路、led背光驱动电路及液晶显示器
CN204928602U (zh) * 2015-06-19 2015-12-30 惠科电子(深圳)有限公司 一种大功率反激电源电路及ac-dc电源
CN205265528U (zh) * 2015-12-08 2016-05-25 广州视源电子科技股份有限公司 Rcd吸收共用的反激电路
CN105871224A (zh) * 2016-06-07 2016-08-17 深圳市智水小荷技术有限公司 超声波电源电路及超声波清洗设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103745701A (zh) * 2013-12-30 2014-04-23 深圳市华星光电技术有限公司 反激式升压电路、led背光驱动电路及液晶显示器
CN204928602U (zh) * 2015-06-19 2015-12-30 惠科电子(深圳)有限公司 一种大功率反激电源电路及ac-dc电源
CN205265528U (zh) * 2015-12-08 2016-05-25 广州视源电子科技股份有限公司 Rcd吸收共用的反激电路
CN105871224A (zh) * 2016-06-07 2016-08-17 深圳市智水小荷技术有限公司 超声波电源电路及超声波清洗设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113300609A (zh) * 2021-05-24 2021-08-24 广东东菱电源科技有限公司 单ic驱动多路单级pfc并联电路及其工作方法

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Application publication date: 20171219