Abstract
AbstractA new power‐efficient frequency compensation structure is presented, named the differential block frequency compensation (DBFC) topology. The new compensation technique employs a fully differential stage to organize feedforward and feedback paths. The DBFC technique relieves feedforward and able to amplify feedback currents to move poles and zeros accordingly, which leads to pole‐zero cancelation scenario. Initially, the proposed structure uses only small compensation capacitance, which means very compact and refined design. The proposed circuit along with several state‐of‐the‐art designs from the literature have been extensively analyzed and compared together. The results reveal the improvement regarding to figure of merit factors, which highlight size of compensation circuits, stability, and power dissipation issues. Moreover, the gain‐bandwidth product increases more than 30 times than of other compared circuits.
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