Heat dissipation devices

Details Heat dissipation devices Heat dissipation devices

2008-09-16

2008-09-16

Duda, Rina I (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

Responsive to thermal conditions

C318S599000, C318S400010

Reexamination Certificate

active

11370851

ABSTRACT:
A heat dissipation device comprises a fan motor, a drive circuit, and a reset current reduction circuit. When the fan motor is locked, an input terminal of the reset current reduction circuit receives an alarm signal, and an output terminal thereof outputs a voltage signal, which is larger than a reference voltage generated as the fan motor is at a low rotation rate, so as to decrease a reset current of the fan motor.

REFERENCES:
patent: 3987309 (1976-10-01), Hamel et al.
patent: 4896018 (1990-01-01), Gilliland
patent: 5045670 (1991-09-01), Gilliland
patent: 6420799 (2002-07-01), Sakamoto et al.
patent: 2004/0184206 (2004-09-01), Nomura et al.

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