Refrigeration – Structural installation – With electrical component cooling
Reexamination Certificate
2011-06-07
2011-06-07
Jules, Frantz F (Department: 3784)
Refrigeration
Structural installation
With electrical component cooling
C340S584000, C340S589000, C361S023000, C361S024000, C361S025000, C361S026000, C361S027000, C361S028000, C361S029000, C361S030000, C361S031000, C361S032000, C361S033000, C361S034000
Reexamination Certificate
active
07954334
ABSTRACT:
An inverter system having a semiconductor device, and a railway vehicle using this inverter, provide a more accurate determination of whether an abnormal heat generation from the inverter is associated with an error of the inverter system or is due to other causes, by use of a plurality of temperature detecting elements at a plurality of sites associated with the semiconductor device. An error detection section applies inputs from the temperature detecting elements, captures a trend of the differential value based on the plurality of temperature inputs using period sampling wherein an error associated with the semiconductor device, and not from some other condition such as outside environment temperature, is determined based on differences from, or a change in, the initial trend.
REFERENCES:
patent: 4393365 (1983-07-01), Kondo et al.
patent: 4970497 (1990-11-01), Broadwater et al.
patent: 5528446 (1996-06-01), Sankaran et al.
patent: 5721455 (1998-02-01), Takashita
patent: 5744927 (1998-04-01), Hayashida
patent: 6012291 (2000-01-01), Ema
patent: 6268986 (2001-07-01), Kobayashi et al.
patent: 6465978 (2002-10-01), Takahashi
patent: 6759964 (2004-07-01), Sato et al.
patent: 6889516 (2005-05-01), Sasaki et al.
patent: 6900607 (2005-05-01), Kleinau et al.
patent: 7046155 (2006-05-01), Sato et al.
patent: 2003/0230996 (2003-12-01), Gabriel et al.
patent: 2003-134795 (2003-05-01), None
Ishikawa Katsumi
Maekawa Keiji
Miyazaki Hideki
Sasaki Masataka
Crowell & Moring LLP
Hitachi , Ltd.
Jules Frantz F
Rahim Azim
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