CN106612068A - 一种具有恒流输出功能的功率因数校正器 - Google Patents

一种具有恒流输出功能的功率因数校正器 Download PDF

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Publication number
CN106612068A
CN106612068A CN201510706639.6A CN201510706639A CN106612068A CN 106612068 A CN106612068 A CN 106612068A CN 201510706639 A CN201510706639 A CN 201510706639A CN 106612068 A CN106612068 A CN 106612068A
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China
Prior art keywords
constant current
power factor
factor correction
current output
output function
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CN201510706639.6A
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English (en)
Inventor
马少峰
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Individual
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Priority to CN201510706639.6A priority Critical patent/CN106612068A/zh
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    • 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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  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)

Abstract

一种具有恒流输出功能的功率因数校正器该技术所属技术领域是各种恒流驱动的器件、恒流电路、恒流系统等。该技术需要解决的技术问题主要是把50W以上的恒流源成本大幅度降低，而且把电源效率大幅度提升。该技术的主要技术特征是在做PFC电路校正时输出恒流，避免一起大家做大功率恒流源时先用PFC电路恒压再用BUCK电路恒流。该技术的用途；各种大瓦数要求PF值的恒流驱动器。

Description

一种具有恒流输出功能的功率因数校正器
技术领域
本技术可广泛应用各种横流驱动的器件、电路、设备、系统等。
背景技术
目前开关电源的功率因数校正器(英文全称：Power Factor Correction，简称PFC)，都是恒压输出的，没有恒流输出。随着技术的推进，恒流输出的功率因数校正器会逐渐被应用，比如LED照明行业等。因此本发明技术填补了这项空白.
发明内容
首先从PFC输出端检测输出电流信号，然后进行信号处理，接着控制处理后的信号，最后反馈到PFC电路，形成一个闭环控制，达到恒流输出的目的。使用恒流控制后，功率因数在输入电压为220VAC时仍可达到0.95以上。此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分。附图是本发明的恒流输出功率因数校正器的电路原理图。

Claims (1)

1.一种具有恒流输出功能的功率因数校正器，凡生产应用：功率因数校正电路(PFC电路)恒流功能的电源或电子装置与设备都侵犯本专利。
CN201510706639.6A 2015-10-26 2015-10-26 一种具有恒流输出功能的功率因数校正器 Pending CN106612068A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510706639.6A CN106612068A (zh) 2015-10-26 2015-10-26 一种具有恒流输出功能的功率因数校正器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510706639.6A CN106612068A (zh) 2015-10-26 2015-10-26 一种具有恒流输出功能的功率因数校正器

Publications (1)

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CN106612068A true CN106612068A (zh) 2017-05-03

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CN (1) CN106612068A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108429449A (zh) * 2018-05-04 2018-08-21 马少峰 一种恒流输出的Boost功率因数校正器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103296904A (zh) * 2012-02-29 2013-09-11 黄煜梅 功率因数校正恒流控制器及控制方法
CN103874295A (zh) * 2014-03-17 2014-06-18 杨岳毅 单级型led驱动电源

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103296904A (zh) * 2012-02-29 2013-09-11 黄煜梅 功率因数校正恒流控制器及控制方法
CN103874295A (zh) * 2014-03-17 2014-06-18 杨岳毅 单级型led驱动电源

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108429449A (zh) * 2018-05-04 2018-08-21 马少峰 一种恒流输出的Boost功率因数校正器

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