Multiphase voltage regulator module with transient step changing phases

The paper presents a new method to control multiphase DC-DC converters for supplying new generation microprocessors (VRM) requiring higher currents at lower voltages. These requirements are achieved by paralleling converter modules, and phase-shifting their drive signals (interleaving technique). Th...

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Bibliographic Details
Main Authors: Capponi, G., Minneci, L., Librizzi, F., Scalia, P.
Format: Conference Proceeding
Language:English
Subjects:
Buck converters
Capacitors
Control systems
Delay
Inductors
Interleaved codes
Microprocessors
Regulators
Steady-state
Voltage control
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Summary:The paper presents a new method to control multiphase DC-DC converters for supplying new generation microprocessors (VRM) requiring higher currents at lower voltages. These requirements are achieved by paralleling converter modules, and phase-shifting their drive signals (interleaving technique). The proposed technique controls the turn-on of each phase in order to reduce overshoot and undershoot of the output regulated voltage improving the performances of interleaving technique in transient current changes.
DOI:10.1109/ICPST.2000.900101