Universal apparatus for driving diverse fans

Details Universal apparatus for driving diverse fans Universal apparatus for driving diverse fans

2008-04-08

2008-04-08

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Plural diverse motor controls

Running-speed control

C700S019000, C388S811000

Reexamination Certificate

active

07355359

ABSTRACT:
A universal driving apparatus of a computer system, including a receptacle, a power switch, an integrator and a comparator, is provided to identify and drive a first fan and a second fan. The receptacle connects to the first fan or the second fan for electricity supply and system control. The integrator integrates speed signals of the first fan and the second fan to output an integrated-speed voltage. The comparator compares the integrated-speed voltage and a comparative voltage to output a comparative signal. Accordingly, the computer system uses the comparative signal to identify the fan type and actuate the first fan or the second fan correctly.

REFERENCES:
patent: 4459519 (1984-07-01), Erdman
patent: 4588934 (1986-05-01), Suzuki et al.
patent: 5577153 (1996-11-01), Bocchiola
patent: 5777817 (1998-07-01), Kim
patent: 2005/0090909 (2005-04-01), Wu

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