Multiphase digital pulsewidth modulator (Reprinted)

被引：35

作者：

Foley, Raymond ^{[1
]}

Kavanagh, Richard ^{[1
]}

Marnane, William ^{[1
]}

Egan, Michael ^{[1
]}

机构：

[1] Univ Coll Cork, Dept Elect & Elect Engn, Power Elect Res Labs, Cork, Ireland

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2006年 / 21卷 / 03期

关键词：

DC-DC power conversion; digital control; field-programmable gate arrays (FPGA); switched-mode power supplies;

D O I：

10.1109/TPEL.2006.875569

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 letter describes a digital pulsewidth modulator that enables the generation of a large, adjustable number of pulsewidth modulated (PWM) outputs of programmable duty cycle and dead time, yet requiring just a small, fixed architecture. The design achieves a resolution of 255 ps using a composite PWM strategy that also minimizes clock frequency and area. It provides a practical solution to the problem of efficiently generating multiple high-resolution gate-drive signals and is particularly suited to the next generation of synchronously switched multiphase voltage regulator modules.

引用

页码：842 / 846

页数：5

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