直流轉換器之負載電流充放電控制裝置
刊登日期:2014/05/21
  ‧ 專利名稱 直流轉換器之負載電流充放電控制裝置
  ‧ 專利證書號 I368125
7994767B2
  ‧ 專利權人 國立臺灣大學
  ‧ 專利國家
    (申請日)
中華民國 (2008/06/25)
美國 (2008/12/18)
 
  ‧ 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:
一種直流轉換器之負載電流充放電控制裝置,其可應用於整合至一直流轉換器,用以對該直流轉換器的輸出電壓提供一快速之暫態回復調控功能。此直流轉換器之負載電流充放電控制裝置的特點在於採用一雙階門檻值比較方法來比較直流轉換器之負載電路所實際接收到之負載電壓;亦即針對輸出負載電壓之漣波的正向及負向振盪均設置2個不同階段之門檻值來作為切換至充電操作和放電操作的參考基準,以利用充電操作來提升下降之負漣波,以及利用放電操作來降低上降之正漣波。此作法即可令直流轉換器的輸出電壓中的暫態漣波變動更為快速地回復至穩態而具有更為快速之電流迴轉率。

A control device for fast transient recovery of the output voltage of DC-DC converters. The control device is characterized by using a dual-threshold method to compare the actually received loading voltage values on the loading terminals of DC-DC converters, i.e., a total of four threshold levels including a negative-ripple falling-edge threshold and a negative-ripple rising-edge threshold on the negative polarity, and a positive-ripple rising-edge threshold and a positive-ripple falling-edge threshold on the positive polarity. During the transient, the load current charging/discharging control device disclosed in the invention may be switched between charging and discharging mode based on the relation between two-pairs threshold values and output voltage amplitude of DC-DC converters. This mechanism may allow DC-DC converters with higher slew rate to make transient ripples on output voltage to return to steady state more quickly.





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