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專利授權區
專利名稱(英)	Method of Current Compensation Based on Division-Sigma Control for DC/DC Converter
專利家族	中華民國：I525974 美國：9,391,513
專利權人	國立清華大學 100%
發明人	張智豪,林力群,張庭豪,吳財福
技術領域	電子電機

專利摘要(英)
A method is provided for current compensation. The method is based on division-sigma (D-.SIGMA.) control for a DC/DC converter. Inductance changes are allowed with D-.SIGMA. digital control achieved. Loop gain can be quickly adjusted. The disadvantage of average current-mode control (ACMC) is solved, where the disadvantage is a reduction of the response speed caused by the filter within the current loop. The present invention uses midpoint current sampling to ensure taking an average inductor current value in each switching cycle. By doing so, a lack of fidelity of peak current-mode control (PCMC) is solved, where the lack of fidelity is due to the amount of error value between the peak value and the average value. Besides, the present invention uses a table of the inductance following current changes to achieve compensation of duty cycle ratio, where the table is built in a single chip.

專利摘要(英)

A method is provided for current compensation. The method is based on division-sigma (D-.SIGMA.) control for a DC/DC converter. Inductance changes are allowed with D-.SIGMA. digital control achieved. Loop gain can be quickly adjusted. The disadvantage of average current-mode control (ACMC) is solved, where the disadvantage is a reduction of the response speed caused by the filter within the current loop. The present invention uses midpoint current sampling to ensure taking an average inductor current value in each switching cycle. By doing so, a lack of fidelity of peak current-mode control (PCMC) is solved, where the lack of fidelity is due to the amount of error value between the peak value and the average value. Besides, the present invention uses a table of the inductance following current changes to achieve compensation of duty cycle ratio, where the table is built in a single chip.

聯絡資訊
承辦人姓名	李曉琪
承辦人電話	03-5715131 #31061
承辦人Email	hsiaochi@mx.nthu.edu.tw