Multiphase digital pulse width modulator

Raymond Foley; Richard Kavanagh; William Marnane; Michael Egan

doi:10.1109/TPEL.2006.875569

Multiphase digital pulse width modulator

Raymond Foley
, Richard Kavanagh
, William Marnane
, Michael Egan

University College Cork

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Pages (from-to)	842-846
Number of pages	5
Journal	IEEE Transactions on Power Electronics
Volume	21
Issue number	3
DOIs	https://doi.org/10.1109/TPEL.2006.875569
Publication status	Published - May 2006

Keywords

Dc-dc power conversion
Digital control
Field-programmable gate arrays (FPGA)
Switched-mode power supplies

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10.1109/TPEL.2006.875569

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abstract = "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.",

keywords = "Dc-dc power conversion, Digital control, Field-programmable gate arrays (FPGA), Switched-mode power supplies",

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KW - Dc-dc power conversion

KW - Digital control

KW - Field-programmable gate arrays (FPGA)

KW - Switched-mode power supplies

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Multiphase digital pulse width modulator

Abstract

Keywords

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