Invention Grant
US09535478B2 Power supply management device, electronic apparatus, and power supply management method 有权
电源管理装置,电子设备和电源管理方法

  • Patent Title: Power supply management device, electronic apparatus, and power supply management method
  • Patent Title (中): 电源管理装置,电子设备和电源管理方法
  • Application No.: US14673386
    Application Date: 2015-03-30
  • Publication No.: US09535478B2
    Publication Date: 2017-01-03
  • Inventor: Michihiro Ochiai
  • Applicant: FUJITSU LIMITED
  • Applicant Address: JP Kawasaki
  • Assignee: FUJITSU LIMITED
  • Current Assignee: FUJITSU LIMITED
  • Current Assignee Address: JP Kawasaki
  • Agency: Arent Fox LLP
  • Priority: JP2014-096118 20140507
  • Main IPC: G06F1/26
  • IPC: G06F1/26 G06F1/32
Power supply management device, electronic apparatus, and power supply management method
Abstract:
A power supply management device includes: a signal-output-unit for outputting, for each of a plurality of power-supply-lines for which voltage supply is started in a predetermined order, a signal indicating that a voltage of the power-supply-line has reached a given level; and a voltage-shut-off-circuit for short-circuiting one of the power-supply-lines for which voltage supply is started second or later, to a portion at a voltage level lower than a level of a voltage supplied to each of the power-supply-lines, at or before a time point of start of voltage supply to one of the power-supply-lines for which voltage supply is started first, and releasing the one power-supply-line from being short-circuited in accordance with the signal indicating that a voltage of one of the power-supply-lines for which voltage supply is started immediately before voltage supply to the one power-supply-line is started has reached a given level.
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