高頻開關(guān)電源控制方案設(shè)計(jì)
作者:孫淑梅 上傳時(shí)間:2011/9/8 13:57:50
摘要:高頻開關(guān)電源控制回路傳統(tǒng)的方法是采用電壓模式單閉環(huán)控制,這種控制方法響應(yīng)較慢,也不能對(duì)功率器件進(jìn)行實(shí)時(shí)電流限制。為了實(shí)現(xiàn)輸出電壓電流均可控,通常采用電流模式控制,常用電流模式控制有峰值電流控制法和平均電流控制法。本文對(duì)高頻開關(guān)電源平均電流模式控制方案設(shè)計(jì)進(jìn)行探討。
敘詞:高頻 控制 設(shè)計(jì)
Abstract:Voltage-mode single closed-loop control is the usual way to control loop in high-frequency switch power supply control, which is relatively slow in response and also cannot restrict power components from real-time current. Voltage-mode control is usually used to make both out-put voltage and current controllable and general voltage-mode control includes peak current control and average current control. This paper discusses design scheme for average current control in high-frequency switch power supply.
Keyword:High frequency, Control, Design
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