Title

Transient Current Compensation For Low-Voltage High-Current Voltage Regulator Modules

Abstract

The maximum current slew rate of Pentinm 4 microprocessor is 510A/us and it will reach more than IA/ns for future generations. However, voltage regulator module (VRM) is always too slow (50A/us) to react and results in output voltage spikes. The existing of large socket inductance between motherboard and microprocessor package generates large voltage spike under load-change transient due to its current response delay. A new active transient current compensation is presented to limit voltage spike within 1.5% variation in loadchange transient when microprocessor operates at 1V, 100A and 2A/ns of current slew rate with the package capacitance decreasing to less than one-half of Pentium 4 level. Therefore, the total voltage variation is limited within 3%.

Publication Date

1-1-2002

Publication Title

Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Volume

1

Number of Pages

223-228

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0036079004 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0036079004

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