Fan control device and method

Details Fan control device and method Fan control device and method

2007-01-16

2007-01-16

Ip, Paul (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

Responsive to thermal conditions

C318S254100, C318S268000, C318S599000, C388S827000

Reexamination Certificate

active

11355100

ABSTRACT:
A fan control device receives a reference revolution signal to control the rotation speed of a fan. The fan control device includes a reference signal generating module, a revolution modifying module and a fan driving module. The reference signal generating module generates a first reference signal and a second reference signal. The revolution modifying module receives the first reference signal and the second reference signal, and generates a target revolution signal according to the reference revolution signal and the first and second reference signals. The fan driving module receives the target revolution signal and generates a driving signal to drive the fan according to the target revolution signal.

REFERENCES:
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patent: 6617815 (2003-09-01), Krief
patent: 6650074 (2003-11-01), Vyssotski et al.
patent: 6700339 (2004-03-01), Vyssotski et al.
patent: 6747432 (2004-06-01), Yoshimura
patent: 6771119 (2004-08-01), Ochi
patent: 6879120 (2005-04-01), Xi
patent: 2003/0222608 (2003-12-01), Vyssotski et al.
patent: 2004/0164692 (2004-08-01), Xi

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