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An increasing trend to utilize digitally-implemented control laws to regulate Switch-Mode Power Supplies (SMPS) is apparent, because such solutions offer several opportunities for advanced control schemes. This paper presents a digital compensator to regulate a Point-of-Load (PoL) Buck converter. The regulator varies both the duty cycle as well as the switching frequency by controlling not only the...
A Zeta converter is a fourth-order DC-DC converter made up of two inductors and two capacitors and capable of operating in either step-up or step-down mode. Compared with other converters in the same class, such as Cuk and SEPIC converters, the Zeta converter has received the least attention, and more importantly, its dynamic modeling and control have never been reported before in the literature....
This paper presents a digital control and design and implementation of a multiphase DC-DC converter with a given set of performance specifications. First, the open loop transfer functions of a two-phase converter are derived. Digital voltage mode control is applied for voltage regulation, and digital active current sharing method is designed to obtain the average phase current. Then, digital controller...
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