Asia Vital Components Co., Ltd.

Sung-Hsien Sun

Bor-Haw Chang

Sung-Wei Sun

Yu-An Lin

Wei-Tsai Huang

A fan operating control system includes a magnetic sensor unit, a control unit, a rectifier unit and a coil unit. The control unit is electrically connected to the magnetic sensor unit and the rectifier unit; the rectifier unit is further electrically connected to a ground; and the coil unit is electrically connected to the control unit and the ground. The control unit detects any fan electric current flowing through the coil unit and generates a rotating speed signal accordingly. When no fan electric current is detected at the coil unit, the control unit stops generating the rotating speed signal. Therefore, it is able to avoid a whole fan system from making an error decision and outputting rotating speed signal continuously when there is not fan electric current flowing through the coil unit, and any abnormal condition that would adversely affect the fan service life can be avoided, too.

Fan operation control system

A fan active noise self-lowering system includes a fan, a push assembly, at least one pickup unit and a digital signal processing unit. The pickup unit serves to capture the noise made by the fan to generate a noise input signal and transmit the noise input signal to the digital signal processing unit. The digital signal processing unit receives the noise input signal and processes the noise input signal to output a control signal for controlling the push winding assembly to operate so as to push the fan impeller of the fan to move up and down. Accordingly, the fan impeller will generate a reverse sonic wave to offset the noise.

Fan active noise self-lowering system

A temperature controlling system for a LED module includes at least one LED unit, at least one fan, at least one temperature sensor and a controlling device. The controlling device generates a driving signal for controlling the rotating speed of the fan based on a temperature detection signal transmitted from the temperature sensor, so that the fan can generate a compulsive airflow for dissipating the heat generated by the LED unit. According to the present invention, the working temperatures of the respective LED units can be kept the same, and a uniform heat-dissipating effect can be achieved.

Growing community of inventors

Taipei, Taiwan

Sung-Hsien Sun