Abstract: An in-wall feature detection device of mutual capacitive technology comprises a housing, a detection baseplate, and at least one capacitive sensing baseplate. The detection baseplate is disposed in the housing and has a central processing module and a capacitance value conversion module and is electrically connected to at least one display module. The capacitive sensing baseplate is provided with driving modules and receiving modules, the driving and receiving modules are arranged in a crisscross manner and electrically connected to the capacitance value conversion module. The in-wall feature detection device is capable of using an electric field change between the driving and receiving modules to determine whether there is a blocking object in a wall, and further generating a corresponding light signal through the central processing module to display a shape of the blocking object. Thereby determining a position and the shape of the blocking object during construction.

Abstract: An in-wall feature detection device of mutual capacitive technology comprises a housing, a detection baseplate, and at least one capacitive sensing baseplate. The detection baseplate is disposed in the housing and has a central processing module and a capacitance value conversion module and is electrically connected to at least one display module. The capacitive sensing baseplate is provided with driving modules and receiving modules, the driving and receiving modules are arranged in a crisscross manner and electrically connected to the capacitance value conversion module. The in-wall feature detection device is capable of using an electric field change between the driving and receiving modules to determine whether there is a blocking object in a wall, and further generating a corresponding light signal through the central processing module to display a shape of the blocking object. Thereby determining a position and the shape of the blocking object during construction.

Abstract: An electromagnetic angle sensing structure comprises a front cover with a display module electrically connected to a control circuit with a sensing module provided with a sensing area formed by at least one sensing coil, the circuit comprises a sensing control unit generating an electromagnetic variable quantity and a central processing module receiving the variable quantity and storing an angle data; and an inner assembly body with a front side formed with a curvature guide rail, being filled with a liquid and disposed with a metal ball displacing in the guide rail, an electromagnetic field generated by the coil generates changes in an inductance value due to the ball passing through, the sensing control unit generates the variable quantity being transmitted to the central processing module, an angle information converted by the central processing module through the variable quantity and the angle data is displayed on the display module.

Abstract: A device and a method for testing receptacle wiring are revealed. The device for testing receptacle wiring includes a signal transmitter and a receiver. The signal transmitted is plugged into a receptacle to be tested while the receiver is used to detect voltage signals of no-fuse breakers (NFB) and receive signals from the signal transmitter so as to find out correspondence between the NFB and the receptacle correctly.

Abstract: A power management apparatus and a power management method are provided. The method includes the following steps. Conduct a first current path during a first period. Provide a first voltage to an operation end when the first current path conducts and a microprocessor is disabled. The first voltage is used to selectively conduct a second path during the first period. Provide a second voltage to the microprocessor when the second current path conducts. The second voltage is used to turn on the microprocessor. Provide a third voltage to the operation end by the microprocessor when the microprocessor is turned on. The third voltage is used to keep the second current path conducted.

Abstract: A power management apparatus and a power management method are provided. The method includes the following steps. Conduct a first current path during a first period. Provide a first voltage to an operation end when the first current path conducts and a microprocessor is disabled. The first voltage is used to selectively conduct a second path during the first period. Provide a second voltage to the microprocessor when the second current path conducts. The second voltage is used to turn on the microprocessor. Provide a third voltage to the operation end by the microprocessor when the microprocessor is turned on. The third voltage is used to keep the second current path conducted.

Abstract: A touch input device provided in the present invention includes a pen tip, a pressure sensing module, a control unit and a PWM generator. The pen tip is utilized to touch a capacitive touchscreen and conduct a touchscreen driving signal. The pressure sensing module is utilized to generate a pressure sensing signal which corresponds to a pressure of the pen tip on the capacitive touchscreen. The control unit is utilized to receive the touchscreen driving signal and the pressure sensing signal, and then to generate a PWM control signal according to the pressure sensing signal. Further, a pulse width of the PWM control signal is proportional to the pressure. The PWM generator is utilized to provide a PWM signal to the pen tip according to the PWM control signal. A touch input system is further provided in the present invention.

Abstract: A touch input device provided in the present invention includes a pen tip, a pressure sensing module, a control unit and a PWM generator. The pen tip is utilized to touch a capacitive touchscreen and conduct a touchscreen driving signal. The pressure sensing module is utilized to generate a pressure sensing signal which corresponds to a pressure of the pen tip on the capacitive touchscreen. The control unit is utilized to receive the touchscreen driving signal and the pressure sensing signal, and then to generate a PWM control signal according to the pressure sensing signal. Further, a pulse width of the PWM control signal is proportional to the pressure. The PWM generator is utilized to provide a PWM signal to the pen tip according to the PWM control signal. A touch input system is further provided in the present invention.