Abstract: The present invention discloses a construction method using a 3D printer and a framework member manufacturing apparatus applied to the method. It is characterized by using a construction 3D printer, a print head with an extrusion nozzle moves along three axes according to a 3D design file, extruding material to form an inner framework member; Stacking a predetermined number of the inner framework members to form an inner framework module, thereby establishing a modular inner framework; Connecting multiple modular inner frameworks in parallel to form an internal structure constituting sidewalls and a ceiling; and covering an external structure onto the exterior of the internal structure and integrating them. Accordingly, this enables the rapid and robust construction of amorphous buildings with complex curves (such as linear, conical, etc.). It enhances durability, significantly reduces manufacturing costs, and achieves the effect of producing buildings with sophisticated shapes.

Abstract: A switch control circuit a multiplexer switch circuit and a control method for a multiplexer switch control circuit are provided. The switch control circuit comprises a first control switch, a first capacitor and a field-effect transistor switch. When the first control switch is switched off, a charging voltage released by the first capacitor can control the switching-on of the field-effect transistor switch. At this moment, since the first control switch is switched off, and a power source signal cannot reach a gate electrode of the field-effect transistor switch, power source noise cannot be coupled to a line where source and drain electrodes of the field-effect transistor switch are located. Thus, in a discharge stage of the first capacitor, a discharge voltage can serve as a control signal to control the switching-on of the field-effect transistor switch.