Electric power conversion systems – Current conversion – With cooling means
Patent
1997-05-27
1998-10-20
Wong, Peter S.
Electric power conversion systems
Current conversion
With cooling means
363 21, 361 25, H02M 100
Patent
active
058256423
ABSTRACT:
A power supply apparatus includes a housing containing therein a component which generates heat when operating, a fan for cooling the heat-generating component, and a driving unit for driving the fan. The housing also contains therein a temperature detector for detecting the temperature in the housing and providing a detected-temperature representing signal. In response to the detected-temperature representing signal, a control unit provides the driving unit with a control signal to change the rotation speed of the fan.
REFERENCES:
patent: 4656553 (1987-04-01), Brown
patent: 4777575 (1988-10-01), Yamato et al.
patent: 5484012 (1996-01-01), Hiratsuka
patent: 5517399 (1996-05-01), Yamauchi et al.
Dumont Michael R.
Hansen Nathaniel S.
Ishii Hideo
Moriguchi Haruo
Murray, Esq. William H.
Patel Rajnikant B.
Sansha Electric Manufacuring Co. Limited
Thermal Dynamics Corporation
Wong Peter S.
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