Architecture and IC implementation of a digital VRM controller

被引：277

作者：

Peterchev, AV ^{[1
]}

Xiao, JW ^{[1
]}

Sanders, SR ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2003年 / 18卷 / 01期

关键词：

analog-digital conversion; current sharing; digital control; digital modulation; inductance; integrated circuits; power conversion; pulse-width modulation; ring oscillators; transient analysis; voltage control;

D O I：

10.1109/TPEL.2002.807099

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper develops the architecture of a digital PWM controller for application in multiphase voltage regulation modules (VRMs). In this context, passive current sharing and VRM transient response with nonzero controller delay are analyzed. A scheme for sensing a combination of the VRM output voltage and output current with a single low-resolution window analog-to-digital converter (ADC) is proposed. The architecture and IC implementation of a digital PWM (DPWM) generation module, using a ring-oscillator-multiplexer scheme, is discussed. Experimental results from a prototype VRM and a partial controller. IC implementation are presented.

引用

页码：356 / 364

页数：9

共 21 条

[1]

ANDERS SR, 2000, P 4 ANN INT TECHN S

[2]

Dancy AP, 1997, IEEE POWER ELECTRON, P21, DOI 10.1109/PESC.1997.616620

[3] High-efficiency multiple-output DC-DC conversion for low-voltage systems [J].

Dancy, AP ;

Amirtharajah, R ;

Chandrakasan, AP .

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, 2000, 8 (03) :252-263

[4] Digital controller design for switchmode power converters [J].

Duan, Y ;

Jin, H .

APEC'99: FOURTEENTH ANNUAL APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, CONFERENCE PROCEEDINGS, VOLS 1 & 2, 1999, :967-973

[5]

Franklin G.F., 1998, Digital Control of Dynamics Systems, V3rd ed.

[6]

HENZE CP, 1986, Patent No. 4630187

[7]

*INT CORP, 2002, VRM 9 0 DC DC CONV D

[8]

Martin TW, 1995, ISIE '95 - PROCEEDINGS OF THE IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS, VOLS 1 AND 2, P480, DOI 10.1109/ISIE.1995.497232

[9] Design considerations for 12-V/1.5-V, 50-A voltage regulator modules [J].

Panov, Y ;

Jovanovic, M .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2001, 16 (06) :776-783

[10]

PATELLA BJ, 2002, P IEEE APPL POW EL C, V1, P374

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