Thesis (Ph. D.)--University of Rhode Island, 2003. / Typescript. Includes bibliographical references (leaves 96-102).

Thesis (Ph. D.)--University of North Texas, May, 2009. / Title from title page display. Includes bibliographical references.

Thesis (Ph. D.)--University of Washington, 2005. / Vita. Includes bibliographical references (leaves 102-109).

Thesis (Ph. D.)--University of Washington, 2005. / Vita. Includes bibliographical references (leaves 124-137).

Thesis (Ph. D.)--University of Rhode Island, 2006. / Includes bibliographical references (leaves 124-127).

Universiẗat, Diss., 2003--Bremen.

abstract: Switching regulator has several advantages over linear regulator, but the drawback of switching regulator is ripple voltage on output. Previously people use LDO following a buck converter and multi-phase buck converter to reduce the output voltage ripple. However, these two solutions also have obvious drawbacks and limitations. In this thesis, a novel mixed signal adaptive ripple cancellation technique is presented. The idea is to generate an artificial ripple current with the same amplitude as inductor current ripple but opposite phase that has high linearity tracking behavior. To generate the artificial triangular current, duty cycle information and inductor current ripple amplitude information are needed. By sensing switching node SW, the duty cycle information can be obtained; by using feedback the amplitude of the artificial ripple current can be regulated. The artificial ripple current cancels out the inductor current, and results in a very low ripple output current flowing to load. In top level simulation, 19.3dB ripple rejection can be achieved. / Dissertation/Thesis / Masters Thesis Electrical Engineering 2016

This work aims at methods, which are suitable for mixed-signal integrated circuit verification. The emphasis is on the Assertion-based verification. In practice there are two languages, which can be used for this method - PSL and SystemVerilog. These languages are compared between each other and individually tested to find their capabilities, functional limits and restrictions. One of them will be integrated into verification flow of SCG Czech Design Center s. r. o. company to develop ABV methodology in analog and mixed-signal domain.

Tato diplomová práce se zabývá verifikací integrovaných obvodů pracujících ve smíšeném módu. Teoretická část práce obsahuje přehled moderních verifikačních metod a zaměřuje se zejména na „assertion based methodology“ . V praktické části práce jsou pak rozebrány popisné jazyky používané u této metody, a následně je vytvořen kód pro verifikaci bloku řídícího obvodu spínaných zdrojů.

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