Delta Electronics, Inc.

Yi-Hua Lee

Te-Chung Liu

Chih-Hua Lin

Yueh-Shan Lin

Yan-Lin Chen

Yueh Shan Lin

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 control circuit of a cycling switch for controlling an electronic equipment includes a switch loop, a first control loop and a second control loop. The switch loop generates a driving signal to drive the electronic equipment. The first control loop is electrically connected with the switch loop and the electronic equipment respectively, and generates a first control signal according to a variation of the driving signal. The second control loop is electrically connected with the first control loop and the electronic equipment respectively. The second control loop has a storage unit which charges and discharges according to the first control signal, so that the second control loop generates a second control signal. The second control signal is inputted to the first control loop and controls the electronic equipment. A control method applied to the control circuit of the cycling switch is also disclosed.

Control circuit of cycling switch and control method thereof

A humidity sensing circuit with temperature compensation includes a wave producing module, a phase processing module, a sensing module and a detecting module. The wave producing module outputs a wave signal. The phase processing module outputs an oscillatory wave and an invert oscillatory wave according to the wave signal. The sensing module has a temperature sensor and a humidity sensor which are connected in series. The temperature sensor and the humidity sensor respectively receive the oscillatory wave and the invert oscillatory wave. The sensing module outputs a parameter signal according to the oscillatory wave and the invert oscillatory wave. The detecting module outputs a detection signal according to the parameter signal. Hence, the humidity sensing circuit with temperature compensation senses the temperature and humidity by the simple circuit design. Moreover, it is feasible for circuit design and application.

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Taoyuan Hsien, Taiwan

Yi-Hua Lee