一種反激磁隔離開關(guān)電源的環(huán)路補(bǔ)償設(shè)計(jì)方法

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摘 要： 介紹了一款反激磁隔離開關(guān)電源的環(huán)路補(bǔ)償設(shè)計(jì)方法。首先建立反激磁隔離開關(guān)電源的小信號(hào)傳遞函數(shù)，然后對(duì)反饋環(huán)路的設(shè)計(jì)參數(shù)進(jìn)行定性分析和定量計(jì)算，并設(shè)計(jì)合適的相位裕量和增益裕量。最后，搭建仿真分析模型和試驗(yàn)驗(yàn)證電路。結(jié)果證明提出的設(shè)計(jì)方法是可行的，具有較好的通用性。

關(guān)鍵詞： 反激電源; 磁隔離; 環(huán)路補(bǔ)償; 反饋環(huán)路

中圖分類號(hào)： TM46

文獻(xiàn)標(biāo)志碼： A

文章編號(hào)： 2095-8188（2024）12-0041-06

DOI： 10.16628/j.cnki.2095-8188.2024.12.007

Loop Compensation Design Method of a Flyback Magnetic Insulation Switch Power Supply

XIANG Rui， CAI Jie， XIONG Dexin

（The 24th Research Institute， China Electronics Technology Group Corp， Chongqing 400060， China）

Abstract： A loop compensation design method of a flyback magnetic insulation switch power supply is introduced.Firstly，the small signal trausfer function of the flyback magntic insulation switch power supply was established.Then，the design parameters of the feed back loop were qualitatively analyzed and quantitatively calculated.The appropriate phase margin and gain magin were designed.Finally，a simulation analysis model was built and the experimental verification circuit was conducted.The results prove that the adapted design method is feasible and has good universality.

Key words： flyback converter; magnetic insulation; loop compensation; feedback loop

0 引 言

近年來(lái)，隨著電力電子技術(shù)的迅速發(fā)展，開關(guān)電源因具有電能轉(zhuǎn)換效率高、體積小、重量輕、性能穩(wěn)定等優(yōu)點(diǎn)，已廣泛應(yīng)用于航空航天、機(jī)載彈載等高可靠應(yīng)用需求領(lǐng)域。（剩余5487字）