CN104410279A - 一种电力***故障检测装置用驱动电源 - Google Patents
一种电力***故障检测装置用驱动电源 Download PDFInfo
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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
- 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
- H02M3/33523—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 galvanic isolation between input and output of both the power stage and the feedback loop
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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
- 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
- H02M3/33561—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 having more than one ouput with independent control
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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
- 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
- H02M3/33569—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 having several active switching elements
- H02M3/33576—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 having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
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Abstract
本发明公开了一种电力***故障检测装置用驱动电源,主要由二极管整流器U,功率放大器P1,变压器T,串接在二极管整流器U的正极输出端与功率放大器P1的同相端之间的开关滤波电路,与变压器T的原边线圈L1的滑动抽头相连接的滑动调节器,与变压器T的副边线圈L2相连接的电源输出电路,以及与变压器T的副边线圈L3相连接的变压反馈电路组成。本发明采用全新的功率逻辑稳压电路来为变压器T提供高质量的输入电压,不仅能简化电路结构,而且还能降低电路自身和外接的射频干扰,使得制作成本和维护成本有了较大幅度的降低。
Description
技术领域
本发明涉及一种开关稳压电源,具体是指一种电力***故障检测装置用驱动电源。
背景技术
目前,随着电力行业的飞速发展,人们用于电力***故障检测的设备也有着极大的发展。由于电力***的检修往往涉及到几百千伏,甚至上百万千伏的电压线路,因此其检修线路非常长,故而对故障检测设备的供电要求也非常高。然而,目前人们对故障检测设备所提供的移动电源却存在较大的波纹系数,不仅会产生射频电磁干扰,而且其电路结构比较复杂、维护和制作成本较高,因此在很大程度上限制了故障检测设备的使用范围,不利于人们对线路进行大规模的检查。
发明内容
本发明的目的在于克服目前故障检测设备用电源存在的波纹系数较大、射频干扰严重、电路复杂及效率不高的缺陷,提供一种全新的电力***故障检测装置用驱动电源。
本发明的目的通过下述技术方案实现:一种电力***故障检测装置用驱动电源,主要由二极管整流器U,功率放大器P1,变压器T,串接在二极管整流器U的正极输出端与功率放大器P1的同相端之间的开关滤波电路,与变压器T的原边线圈L1的滑动抽头相连接的滑动调节器,与变压器T的副边线圈L2相连接的电源输出电路,以及与变压器T的副边线圈L3相连接的变压反馈电路组成,同时,还设有与二极管整流器U、开关滤波电路和功率放大器P1相连接的功率逻辑稳压电路;所述的功率逻辑稳压电路由功率放大器P2,与非门IC1,与非门IC2,与非门IC3,与非门IC4,N极与功率放大器P2的输出端相连接、P极经电阻R4后接地的二极管D4,一端与与非门IC1的第一输入端相连接、另一端经电容C6后与与非门IC2的输出端相连接的电阻R5,一端与与非门IC1的输出端相连接、另一端与电阻R5和电容C6的连接点相连接的电阻R6,一端与与非门IC3的输出端相连接、另一端与功率放大器P1的反相端相连接的电阻R7,一端与与非门IC4的输出端相连接、另一端与功率放大器P1的反相端相连接的电阻R8,以及一端与功率放大器P2的反相端相连接、另一端接地的电阻R3组成;所述与非门IC1的第二输入端接地,其输出端还与与非门IC2的第一输入端相连接;与非门IC2的第二输入端与功率放大器P2的同相端相连接,其输出端则分别与与非门IC3的第一输入端和与非门IC4的第二输入端相连接,与非门IC3的第二输入端与与非门IC4的第一输入端相连接;所述功率放大器P2的同相端则与二极管整流器U的负极输出端相连接,同时,功率放大器P2的输出端还与开关滤波电路相连接。
进一步地,所述开关滤波电路由三极管Q1,电容C1,电容C2,电阻R1,电阻R2及二极管D1组成;所述三极管Q1的基极顺次经电阻R2、二极管D1及电阻R1后与其集电极形成回路,电容C1与电阻R1相并联,电容C2与电阻R2相并联;三极管Q1的集电极与二极管整流器U的正极输出端相连接,其发射极与功率放大器P2的输出端相连接;电阻R2与二极管D1的连接点则与功率放大器P1的同相端相连接;所述原边线圈L1则与二极管D1相并联,而功率放大器P1的输出端则与滑动调节器的输入端相连接。
所述电源输出电路由P极与副边线圈L2的同名端相连接、N极经电容C3后与副边线圈L2的非同名端相连接的二极管D2,以及一端与二极管D2的N极相连接、另一端经电容C4后与副边线圈L2的非同名端相连接的电感L4组成。
所述变压反馈电路由二极管D3和电容C5组成;所述二级管D3的P极与副边线圈L3的非同名端相连接、其N极经电容C5后与副边线圈L3的同名端相连接,所述副边线圈L3的同名端接地;同时,功率放大器P1的输出端还与三极管D3和电容C5的连接点相连接。
本发明较现有技术相比,具有以下优点及有益效果:
(1)本发明采用全新的功率逻辑稳压电路来为变压器T提供高质量的输入电压,不仅能简化电路结构,而且还能降低电路自身和外接的射频干扰,使得制作成本和维护成本有了较大幅度的降低。
(2)本发明能自动的调节变压器原边线圈的匝数,因此能够根据人们的实际需求进行调压。
(3)本发明能有效的克服传统电源电路的延迟效应,能有效的提高电源的质量。
附图说明
图1为本发明的整体结构示意图。
具体实施方式
下面结合实施例对本发明作进一步地详细说明,但本发明的实施方式不限于此。
实施例
如图1所示,本发明主要由二极管整流器U,功率放大器P1,变压器T,串接在二极管整流器U的正极输出端与功率放大器P1的同相端之间的开关滤波电路,与变压器T的原边线圈L1的滑动抽头相连接的滑动调节器,与变压器T的副边线圈L2相连接的电源输出电路,与变压器T的副边线圈L3相连接的变压反馈电路,以及与二极管整流器U、开关滤波电路和功率放大器P1相连接的功率逻辑稳压电路组成。
其中,所述的功率逻辑稳压电路由功率放大器P2,与非门IC1,与非门IC2,与非门IC3,与非门IC4,二极管D4,电阻R3,电阻R4,电阻R5,电阻R6,电阻R7,电阻R8和电容C6组成。连接时,二极管D4的N极与功率放大器P2的输出端相连接,其P极经电阻R4后接地。电阻R5的一端与与非门IC1的第一输入端相连接,其另一端则经电容C6后与与非门IC2的输出端相连接;电阻R6的一端与与非门IC1的输出端相连接,其另一端与电阻R5和电容C6的连接点相连接。
所述电阻R7的一端与与非门IC3的输出端相连接,其另一端与功率放大器P1的反相端相连接;电阻R8的一端与与非门IC4的输出端相连接,其另一端与功率放大器P1的反相端相连接;电阻R3的一端与功率放大器P2的反相端相连接,其另一端接地。
同时,与非门IC1的第二输入端接地,而其输出端则与与非门IC2的第一输入端相连接;与非门IC2的第二输入端与功率放大器P2的同相端相连接,其输出端则分别与与非门IC3的第一输入端和与非门IC4的第二输入端相连接,与非门IC3的第二输入端与与非门IC4的第一输入端相连接。而所述的功率放大器P2的同相端则与二极管整流器U的负极输出端相连接。
所述的开关滤波电路由三极管Q1,电容C1,电容C2,电阻R1,电阻R2及二极管D1组成。连接时,三极管Q1的基极顺次经电阻R2、二极管D1及电阻R1后与其集电极形成回路,电容C1与电阻R1相并联,电容C2与电阻R2相并联。三极管Q1的集电极与二极管整流器U的正极输出端相连接,其发射极与功率放大器P2的输出端相连接;电阻R2与二极管D1的连接点则与功率放大器P1的同相端相连接。
其中,电阻R1、电容C1和二极管D1组成反馈钳位电路,可以提高变换效率和降低功率放大器P1同相端的反向峰值电压。
所述变压器T则由设置在原边的原边线圈L1,设置在副边的副边线圈L2和副边线圈L3组成。本发明在变压器T的原边线圈L1上设有一个滑动抽头,而该滑动抽头由滑动调节器来进行控制,以确保本发明能自动调整变压器T的原边线圈L1与副边线圈L2和副边线圈L3之间的匝数比。
连接时,该原边线圈L1要与二极管D1相并联,而功率放大器P1的输出端则与滑动调节器的输入端相连接。
所述的电源输出电路由P极与副边线圈L2的同名端相连接、N极经电容C3后与副边线圈L2的非同名端相连接的二极管D2,以及一端与二极管D2的N极相连接、另一端经电容C4后与副边线圈L2的非同名端相连接的电感L4组成。而电容C4的两端则形成本驱动电源的输出端。
所述变压反馈电路用于向滑动调节器提供反馈信号和反馈电压,进而确保该滑动调节器能根据输出端所外接的负载自动调解变压器T的匝数比。该变压反馈电路由二极管D3和电容C5组成;所述二级管D3的P极与副边线圈L3的非同名端相连接、其N极经电容C5后与副边线圈L3的同名端相连接,所述副边线圈L3的同名端接地;同时,功率放大器P1的输出端还与三极管D3和电容C5的连接点相连接。
为确保实际的运行效果,本申请中的电容C1、电容C2、电容C3、电容C4、电容C5及电容C6均采用贴片电容来实现。
如上所述,便可以很好的实现本发明。
Claims (4)
1.一种电力***故障检测装置用驱动电源,主要由二极管整流器U,功率放大器P1,变压器T,串接在二极管整流器U的正极输出端与功率放大器P1的同相端之间的开关滤波电路,与变压器T的原边线圈L1的滑动抽头相连接的滑动调节器,与变压器T的副边线圈L2相连接的电源输出电路,以及与变压器T的副边线圈L3相连接的变压反馈电路组成,其特征在于,还设有与二极管整流器U、开关滤波电路和功率放大器P1相连接的功率逻辑稳压电路;所述的功率逻辑稳压电路由功率放大器P2,与非门IC1,与非门IC2,与非门IC3,与非门IC4,N极与功率放大器P2的输出端相连接、P极经电阻R4后接地的二极管D4,一端与与非门IC1的第一输入端相连接、另一端经电容C6后与与非门IC2的输出端相连接的电阻R5,一端与与非门IC1的输出端相连接、另一端与电阻R5和电容C6的连接点相连接的电阻R6,一端与与非门IC3的输出端相连接、另一端与功率放大器P1的反相端相连接的电阻R7,一端与与非门IC4的输出端相连接、另一端与功率放大器P1的反相端相连接的电阻R8,以及一端与功率放大器P2的反相端相连接、另一端接地的电阻R3组成;所述与非门IC1的第二输入端接地,其输出端还与与非门IC2的第一输入端相连接;与非门IC2的第二输入端与功率放大器P2的同相端相连接,其输出端则分别与与非门IC3的第一输入端和与非门IC4的第二输入端相连接,与非门IC3的第二输入端与与非门IC4的第一输入端相连接;所述功率放大器P2的同相端则与二极管整流器U的负极输出端相连接,同时,功率放大器P2的输出端还与开关滤波电路相连接。
2.根据权利要求1所述的一种电力***故障检测装置用驱动电源,其特征在于,所述开关滤波电路由三极管Q1,电容C1,电容C2,电阻R1,电阻R2及二极管D1组成;所述三极管Q1的基极顺次经电阻R2、二极管D1及电阻R1后与其集电极形成回路,电容C1与电阻R1相并联,电容C2与电阻R2相并联;三极管Q1的集电极与二极管整流器U的正极输出端相连接,其发射极与功率放大器P2的输出端相连接;电阻R2与二极管D1的连接点则与功率放大器P1的同相端相连接;所述原边线圈L1则与二极管D1相并联,而功率放大器P1的输出端则与滑动调节器的输入端相连接。
3.根据权利要求2所述的一种电力***故障检测装置用驱动电源,其特征在于,所述电源输出电路由P极与副边线圈L2的同名端相连接、N极经电容C3后与副边线圈L2的非同名端相连接的二极管D2,以及一端与二极管D2的N极相连接、另一端经电容C4后与副边线圈L2的非同名端相连接的电感L4组成。
4.根据权利要求3所述的一种电力***故障检测装置用驱动电源,其特征在于,所述变压反馈电路由二极管D3和电容C5组成;所述二级管D3的P极与副边线圈L3的非同名端相连接、其N极经电容C5后与副边线圈L3的同名端相连接,所述副边线圈L3的同名端接地;同时,功率放大器P1的输出端还与三极管D3和电容C5的连接点相连接。
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