Delta Electronics, Inc.

Yan-Lin Chen

Chih-Hua Lin

Te-Chung Liu

Yu-Hsiang Huang

Yueh-Shan Lin

Shih-Tzung Hsu

Yuan-Chuan Liu

Yi-Hua Lee

Pei-Chang Kuo

Chih-hua Lin

Yueh Shan Lin

Ventilation fan

A ventilation apparatus with a two-section feedback compensation control and a method for operating the same are disclosed. The ventilation apparatus includes a power conversion unit, a driven circuit, a DC motor, a current-sensing unit, a voltage compensation unit, and a control unit. The power conversion unit receives and converts an AC power voltage into a DC power voltage. The driven circuit receives the DC power voltage and outputs a driven voltage. The DC motor is driven through the driven voltage. The current-sensing unit senses an output current of the DC motor. The control unit receives the output current to compare to a threshold current value, thus controlling the voltage compensation unit. Accordingly, the DC power voltage is adjusted to adjust the speed of the DC motor.

Ventilation apparatus with feedback compensation control and method for operating the same

A ventilator includes a base, a drive device disposed on the base, an impeller coupled to the drive device and driven by the drive device, and a cover assembled with the base to define a closed area between the cover and the base for receiving a first circuit board therein, wherein when an AC power source is input to the first circuit board to be converted, a DC power source is output to drive the drive device.

Ventilator and its impeller

Growing community of inventors

Tao Yuan Shien, Taiwan

Yan-Lin Chen