Title:
FAN CONTROL APPARATUS AND FAN CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2012/111158
Kind Code:
A1
Abstract:
A fan control apparatus (1A) is provided with: a PWM generating circuit (6A), which generates discretionary signals for controlling rotation of fans (31, 32) that cool an MXM card (2); a PWM switching circuit (7A), which is disposed between the MXM card (2) and the fans (31, 32), and which switches output to the fans (31, 32) from the discretionary signals generated by means of the PWM generating circuit (6A) to signals from the MXM card (2); and a switch instructing unit (8), which instructs, in predetermined timing, the PWM switching circuit (7A) to perform switching. Consequently, the fans for cooling the power generating component can be suitably controlled.
Inventors:
SHIBATA KAZUHARU (JP)
MATSUNAGA SATOSHI (JP)
KURIBAYASHI TSUYOSHI (JP)
MATSUNAGA SATOSHI (JP)
KURIBAYASHI TSUYOSHI (JP)
Application Number:
PCT/JP2011/053561
Publication Date:
August 23, 2012
Filing Date:
February 18, 2011
Export Citation:
Assignee:
FUJITSU LTD (JP)
SHIBATA KAZUHARU (JP)
MATSUNAGA SATOSHI (JP)
KURIBAYASHI TSUYOSHI (JP)
SHIBATA KAZUHARU (JP)
MATSUNAGA SATOSHI (JP)
KURIBAYASHI TSUYOSHI (JP)
International Classes:
F04D27/00
Foreign References:
| JP4384182B2 | 2009-12-16 | |||
| JP2006285675A | 2006-10-19 | |||
| JP4157550B2 | 2008-10-01 |
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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Claims: