直流變壓雙模式控制法
  ‧ 專利名稱 直流變壓雙模式控制法
  ‧ 專利證書號 I352488
7999528B2
  ‧ 專利權人 國立臺灣大學
  ‧ 專利國家
    (申請日)
中華民國 (2008/06/17)
美國 (2009/01/14)
 
  ‧ 發明人/PI 陳怡然 ,劉邦榮 ,
  ‧ 單位 電子工程學研究所
  ‧ 簡歷/Experience
技術摘要 / Our Technology:
一種電源輸出裝置雙模式暫態回復控制方法及電路系統,其可應用於整合至一直流變壓器,用以對該直流變壓器的輸出電壓提供一雙模式暫態回復控制功能,亦即對該直流變壓器所具有之一磁滯模式和一脈寬調變模式提供一交替式之切換控制功能;且其特點在於採用一正負向雙階門檻值比較方法來比較直流變壓器之負載電路所實際接收到之負載電壓,以作為此雙模式切換之觸發點。此作法即可令直流變壓器的輸出電壓中的暫態漣波變動更為快速地回復至穩態,並可提供更佳之防雜訊功能。

A dual mode transient recovery control method and system is proposed, which is designed for use with a direct-current (DC) power output unit, such as a DC-DC converter, for fast transient recovery of DC output power by switching the DC-DC converter to operate between a hysteretic mode and a PWM (Pulse Width Modulation) mode. The proposed control method and system is characterized by the use of a dual-threshold scheme to compare the output voltage. This feature may discharge the transient output voltage, raised by the over-shoot, to the steady state by switching to the discharging mode, and similarly charge the transient output voltage, dropped by the under-shoot, to the steady state by switching to the charging mode. This mechanism may allow DC-DC converters with higher slew rate to make transient ripples of output voltage to return to steady state more quickly, and additionally allow a better level of noise immunity.





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