Přístupnostní navigace
E-přihláška
Vyhledávání Vyhledat Zavřít
Detail publikace
KADLČÍK, L. HORSKÝ, P.
Originální název
A CMOS Follower-Type Voltage Regulator With a Distributed-Element Fractional-Order Control
Typ
článek v časopise ve Scopus, Jsc
Jazyk
angličtina
Originální abstrakt
This paper presents an application of a fractional-order control in an on-chip follower-type 1.8 V/100 mA voltage regulator to achieve a good stability with any load capacitance. The controller approximates an integrator with the fractional order of 0.5, whose phase lag is not more than 45°. The fractional order is set by the fractional-order impedance of the resistive p-type MOS capacitor (R-PMOScap). With an n-type MOS source follower stage adding the phase lag of at most 90°, the remaining phase margin is always at least 45°. The R-PMOScap is a novel integrated distributed-element RC network, realized as a resistive polysilicon strip on a gate oxide, and is compatible with an analog CMOS process. The voltage regulator has been manufactured in a 350-nm CMOS process and occupies a small chip area of 0.038 mm^2. It operates in a harsh automotive environment with a temperature from -50 °C to 200 °C and shows a tight DC regulation, while being stable over the full range of the load current (from 0 to 100 mA) and with any load capacitance (allowing to use none or any external capacitor).
Klíčová slova
distributed-element RC circuit; fractional-order control; fractional-order integrator; loop stability; R-PMOScap; source follower; voltage regulator
Autoři
KADLČÍK, L.; HORSKÝ, P.
Vydáno
9. 3. 2018
Nakladatel
IEEE Circuits and Systems Society
Místo
Spojené státy americké
ISSN
1549-8328
Periodikum
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
Ročník
65
Číslo
9
Stát
Strany od
2753
Strany do
2763
Strany počet
11
URL
http://ieeexplore.ieee.org/document/8310958
BibTex
@article{BUT146820, author="Libor {Kadlčík} and Pavel {Horský}", title="A CMOS Follower-Type Voltage Regulator With a Distributed-Element Fractional-Order Control", journal="IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS", year="2018", volume="65", number="9", pages="2753--2763", doi="10.1109/TCSI.2018.2808879", issn="1549-8328", url="http://ieeexplore.ieee.org/document/8310958" }