CN108880227A - 一种开关电源功率因数校正器 - Google Patents

一种开关电源功率因数校正器 Download PDF

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Publication number
CN108880227A
CN108880227A CN201810915385.2A CN201810915385A CN108880227A CN 108880227 A CN108880227 A CN 108880227A CN 201810915385 A CN201810915385 A CN 201810915385A CN 108880227 A CN108880227 A CN 108880227A
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China
Prior art keywords
circuit
connect
current rectifying
wave filtering
power supply
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CN201810915385.2A
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English (en)
Inventor
杨建春
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Hefei Billion Will Reach Logistics Mdt Infotech Ltd
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Hefei Billion Will Reach Logistics Mdt Infotech Ltd
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Priority to CN201810915385.2A priority Critical patent/CN108880227A/zh
Publication of CN108880227A publication Critical patent/CN108880227A/zh
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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
    • 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)
  • Control Of Electrical Variables (AREA)

Abstract

一种开关电源功率因数校正器，它涉及通信元器件制造技术领域。它包括EMI滤波电路、整流滤波电路、变压调整电路、次级整流滤波电路，EMI滤波电路与整流滤波电路一端连接，整流滤波电路另一端与变压调整电路一端连接，变压调整电路另一端与次级整流滤波电路连接。本发明体积小，稳定性高，效率高，控制精确，大大降低了电路的无功功率，使用广泛。

Description

一种开关电源功率因数校正器
技术领域
本发明涉及通信元器件制造技术领域，尤其涉及一种开关电源功率因数校正器。
背景技术
目前国内多数开关电源在进行日常供电时都存在无功功率高，稳定性差的问题，在面对日益紧张的供电资源，不但造成能源的浪费，而且加重了电网的负载。
发明内容
本发明的目的是提供一种无功功率低、体积小，稳定性高，效率高，控制精确的开关电源功率因数校正器。
为了解决背景技术中所存在的问题，本发明是采用以下技术方案：它包括EMI滤波电路、整流滤波电路、变压调整电路、次级整流滤波电路，EMI滤波电路与整流滤波电路一端连接，整流滤波电路另一端与变压调整电路一端连接，变压调整电路另一端与次级整流滤波电路连接。
本发明体积小，稳定性高，效率高，控制精确，大大降低了电路的无功功率，使用广泛。
附图说明：
图1是本发明的结构示意图。
具体实施方式
参见图1，一种开关电源功率因数校正器，它包括EMI滤波电路、整流滤波电路、变压调整电路、次级整流滤波电路，EMI滤波电路与整流滤波电路一端连接，整流滤波电路另一端与变压调整电路一端连接，变压调整电路另一端与次级整流滤波电路连接。
本发明在220V交流供电，交流电通过保险丝 EMI滤波系统进入整流滤波电路后，经变压器变压调整，后经过次级整流滤波达到所需的直流电压，首先220V交流电通过保险丝控制最大电流，整流滤波，降低电网与电源之间的干扰、整流堆整流，大电容次级整流滤波，保证供电的稳定性和平滑性，通过芯片控制变压器的通断，达到后级需要的电压电流。

Claims (1)

1.一种开关电源功率因数校正器，其特征在于，它包括EMI滤波电路、整流滤波电路、变压调整电路、次级整流滤波电路，EMI滤波电路与整流滤波电路一端连接，整流滤波电路另一端与变压调整电路一端连接，变压调整电路另一端与次级整流滤波电路连接。
CN201810915385.2A 2018-08-13 2018-08-13 一种开关电源功率因数校正器 Withdrawn CN108880227A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810915385.2A CN108880227A (zh) 2018-08-13 2018-08-13 一种开关电源功率因数校正器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810915385.2A CN108880227A (zh) 2018-08-13 2018-08-13 一种开关电源功率因数校正器

Publications (1)

Publication Number Publication Date
CN108880227A true CN108880227A (zh) 2018-11-23

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Country Status (1)

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CN (1) CN108880227A (zh)

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Application publication date: 20181123