Method for controlling output of a power supply unit, power supply system, and information processing device

A method for controlling an output of a power supply unit (PSU) in order to prevent a shutdown of the PSU to supply power to a group of processors (CPUs) is disclosed. A PSU supplies power to a multicore CPU. An input current flowing into multiple CPU cores (#1-#4) includes a pulse current. When the...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	ODAOHHARA SHIGEFUMI
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION ANDCOMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION ANDCOMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THIR OWNENERGY USE COMPUTING CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING COUNTING ELECTRIC DIGITAL DATA PROCESSING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A method for controlling an output of a power supply unit (PSU) in order to prevent a shutdown of the PSU to supply power to a group of processors (CPUs) is disclosed. A PSU supplies power to a multicore CPU. An input current flowing into multiple CPU cores (#1-#4) includes a pulse current. When the pulse current of each of CPU cores is superposed on an output current of the PSU, a protection device is operated to perform a shutdown. A clock control determination unit compares the output current and a reference signal and thereby outputs a control signal (PROCHOT_REQ#). A group of peak detection units (53a-53d) detects a peak value of the pulse current. A control unit (120) selects a processor targeted for clock control, based on the peak value and outputs a control signal (PROCHOT_REQ#) for reducing a clock frequency to the selected processor while receiving the control signal(PROCHOT #).