DC CONSTANT-SPEED BRUSHLESS FAN MOTOR HAVING WIDE VOLTAGE INPUT

摘要

A direct current (DC) constant-speed brushless fan motor having a wide voltage input, comprising a power supply unit; a fan motor driving unit, connected to the power supply unit; a fan motor, connected to the fan motor drive unit; a fan motor control unit, connected to the fan motor; and a sensing unit, connected to the fan motor control unit. As such, the power supply unit may be used to accept a wide voltage input and convert the wide input voltage into an appropriate output power, so that the appropriate output power may be outputted to the brushless fan motor through the fan motor control unit and the fan motor drive unit. As such, the fan motor may reach a target rotational speed which may not be changed with the input voltage, with the efficacies of saved consumed energy and elimination of operation noise achieved simultaneously.

主权项

1. A direct current (DC) constant-speed brushless fan motor having a wide voltage input, comprising:
a DC-DC power supply unit; a fan motor drive unit, connected to the power supply unit and wherein the power supply unit outputs a constant current, a constant voltage, or a constant power to the fan motor drive unit; a fan motor, connected to the fan motor drive unit; a fan motor control unit, connected to the fan motor drive unit; a sensing unit, connected to the fan motor control unit, a power output modulation unit, and a hot plugging unit.