NDLI: Field-programmable gate array-based linear–non-linear control with high-resolution digital pulse width modulator and high-speed embedded analogue-to-digital converter for multi-phase voltage regulator modules

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Field-programmable gate array-based linear–non-linear control with high-resolution digital pulse width modulator and high-speed embedded analogue-to-digital converter for multi-phase voltage regulator modules

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Field-programmable gate array-based linear–non-linear control with high-resolution digital pulse width modulator and high-speed embedded analogue-to-digital converter for multi-phase voltage regulator modules

Content Provider	IET Digital Library
Author	Sanz, Marina Quintero, Jesús Barrado, Andrés Fernández, Cristina Zumel, Pablo Lázaro, Antonio
Abstract	Power converters for applications with high switching frequency and tight output voltage regulation such as voltage regulator modules (VRM) for microprocessors power supplies require fast dynamic response to meet the specifications. An existing control technique known as linear–non-linear (LnL) control strategy allows improving the transient converter response by means of an easy rule for the saturation of the duty cycle. The use of a digital implementation can optimise the transient response of the multi-phase VRM with LnL. However, digital control leads to other problems derived from time discretisation and finite word length effects. The limited resolution and the sampling delay are critical issues for digital control implementation of multi-phase VRM with LnL control. As a result, a high-resolution digital pulse width modulator (DPWM) and high-speed analogue-to-digital (A/D) converter are required to obtain proper performance of the converter. This study is focused on the digital implementation of the well-known LnL control in a multi-phase VRM taking advantage of low-cost field-programmable gate array resources. A detailed description of the digital implementation of the main converter control blocks, which are the A/D converter, the compensator and the DPWM, is provided in the paper.
Starting Page	2001
Ending Page	2012
Page Count	12
ISSN	17554535
Volume Number	7
e-ISSN	17554543
Issue Number	Issue 8, Aug (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/7/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2013.0587
Journal	IET Power Electronics
Publisher Date	2014-04-30
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	A/D And D/A Convertor Analogue-Digital Conversion Circuit For Digital Computers Digital Control Field Programmable Gate Array High-resolution Digital Pulse Width Modulator High-speed Embedded Analogue-to-digital Converter Linearâ€“nonlinear Control Logic And Switching Circuit Logic Circuit Microprocessors Power Supplies Multiphase Voltage Regulator Module Nonlinear Control System Power Converter Power Electronics Power Supply Power Supply Circuit Sampling Delay Supervisory Circuit Transient Response Voltage Control Voltage Regulation Voltage Regulators VRM
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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