TY - JOUR
T1 - Optimal Design of a Voltage Regulator Based on Gyrator Switched-Resonator Converter IC
AU - Abramov, Eli
AU - Cervera, Alon
AU - Peretz, Mor Mordechai
N1 - Funding Information:
Manuscript received April 2, 2017; revised July 4, 2017 and August 6, 2017; accepted August 14, 2017. Date of publication August 21, 2017; date of current version May 1, 2018. This work was supported by Siliconix Division, Vishay Ltd. This paper was presented at the Applied Power Electronics Conference and Exposition 2016, Mar. 20–24, Long Beach, CA, USA [67]. Recommended for publication by Associate Editor J. A. Cobos. (Corresponding author: Mor Mordechai Peretz.) The authors are with the Center for Power Electronics and Mixed-Signal IC, Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel (e-mail: eliab@post.bgu.ac.il; cervera@post.bgu.ac.il; morp@ee.bgu.ac.il).
Publisher Copyright:
© 2013 IEEE.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - This paper details efficiency analysis and characteristics of a gyrator switched-resonator converter (GSwRC) IC. Followed by an efficiency analysis, this paper introduces an optimized size-efficiency design procedure for IC realization of the converter. In area-sensitive applications, the optimization method combined with the converter's benefits presents an attractive approach for power delivery in point-of-load applications. To verify the analytical framework, two sets of bridge-type GSwRCs prototypes have been evaluated. One is an on-chip bridge GSwRC that has been fabricated in 0.18- μm 5-V CMOS process, according to the principles detailed in this paper, and verified through postlayout analysis and experimental measurements of the fabricated IC. The second prototype is a discrete GSwRC that is used for further validation of the theoretical framework. In addition, the analysis has been verified through a design example of a multiphase resonant switched-capacitor converter. The fabricated IC prototype operation is demonstrated with 1.5 A, delivering up to 2.25 W from 3-V input voltage, with peak efficiency at 85%. A fully monolithic controller to regulate the output voltage is described and implemented on-chip by an automated synthesis process and place-and-route tools.
AB - This paper details efficiency analysis and characteristics of a gyrator switched-resonator converter (GSwRC) IC. Followed by an efficiency analysis, this paper introduces an optimized size-efficiency design procedure for IC realization of the converter. In area-sensitive applications, the optimization method combined with the converter's benefits presents an attractive approach for power delivery in point-of-load applications. To verify the analytical framework, two sets of bridge-type GSwRCs prototypes have been evaluated. One is an on-chip bridge GSwRC that has been fabricated in 0.18- μm 5-V CMOS process, according to the principles detailed in this paper, and verified through postlayout analysis and experimental measurements of the fabricated IC. The second prototype is a discrete GSwRC that is used for further validation of the theoretical framework. In addition, the analysis has been verified through a design example of a multiphase resonant switched-capacitor converter. The fabricated IC prototype operation is demonstrated with 1.5 A, delivering up to 2.25 W from 3-V input voltage, with peak efficiency at 85%. A fully monolithic controller to regulate the output voltage is described and implemented on-chip by an automated synthesis process and place-and-route tools.
KW - IC
KW - on-chip voltage regulator
KW - optimization
KW - power supply on-chip
KW - resonant switched-capacitor converter (SCC)
KW - size efficiency
KW - switched-resonator converters
KW - zero-current switching (ZCS)
UR - http://www.scopus.com/inward/record.url?scp=85028510131&partnerID=8YFLogxK
U2 - 10.1109/JESTPE.2017.2741977
DO - 10.1109/JESTPE.2017.2741977
M3 - Article
AN - SCOPUS:85028510131
SN - 2168-6777
VL - 6
SP - 549
EP - 562
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 2
ER -