Abstract: A semiconductor device is provided. The semiconductor device comprises a first semiconductor die comprising a first capacitor, and a second semiconductor die in contact with the first semiconductor die and comprises a diode. The first semiconductor die and the second semiconductor die are arranged along a first direction, and a diode is configured to direct electrons accumulated at the first capacitor to a ground.

Abstract: An energy-saving type plant cultivation system is provided, which includes: a first power source for generating first electric power from solar or wind energy; a plant cultivation device electrically connected to the first power source for receiving the first electric power, and having a plurality of layers of cultivation plates and further having at least a transparent sidewall to facilitate a monitoring staff to observe growth of the plants; a second power source electrically connected to the plant cultivation device so as to supply second electric power to the plant cultivation device; and a power storage unit electrically connected to the first power source, the plant cultivation device and the second power source so as to receive and store the first electric power or the second electric power and supply third electric power to the plant cultivation device if the first electric power or the second electric power is not sufficient.

Abstract: A method of maximum power point tracking for a photovoltaic module system is disclosed. The photovoltaic module system may comprise a photovoltaic module array comprising a plurality of identical photovoltaic modules, and the tracking method may comprise: detecting system parameters and environmental parameters of the photovoltaic module array; estimating a first voltage coefficient of one photovoltaic module according to the system parameters and the environmental parameters; estimating a plurality of second voltage coefficients of the photovoltaic module array according to the first voltage coefficient with different shading ratios; estimating a plurality of local maximum power point powers according to corresponding second voltage coefficients; and determining a whole maximum power point by comparing the local maximum power point powers with one another.

Abstract: The present invention provides a method for adjusting a maximum power of a circuit having a first voltage output and a first power. The method includes the following steps: (a) obtaining a voltage coefficient by measuring the first power of the circuit and calculating an open-circuit voltage of the first voltage output; (b) estimating an estimated power based on the voltage coefficient; and (c) repeating the steps (a) to (b) for a specific number of times, in which the specific number of times is determined based on a variation of the estimated power during a time period.

Abstract: A method for predicting power generation for a sun-tracking type photovoltaic system. A calculating device may perform the prediction method and may comprise the steps of: forming a mathematical relationship that relates the variation in sunlight incident angle of powers for sun-tracking type and fixed-type photovoltaic systems to at least one electrical characteristic of the photovoltaic system; accumulating ratios between the power production rate of the sun-tracking type photovoltaic system and the fixed-type photovoltaic system; and according to a predetermined cost estimation structure, providing an analysis for determining whether a sun-tracking type photovoltaic system should be installed.

Abstract: A method of maximum power point tracking for a photovoltaic module system is disclosed. The photovoltaic module system may comprise a photovoltaic module array comprising a plurality of identical photovoltaic modules, and the tracking method may comprise: detecting system parameters and environmental parameters of the photovoltaic module array; estimating a first voltage coefficient of one photovoltaic module according to the system parameters and the environmental parameters; estimating a plurality of second voltage coefficients of the photovoltaic module array according to the first voltage coefficient with different shading ratios; estimating a plurality of local maximum power point powers according to corresponding second voltage coefficients; and determining a whole maximum power point by comparing the local maximum power point powers with one another.

Abstract: The present invention provides a method for adjusting a maximum power of a circuit having a first voltage output and a first power. The method includes the following steps: (a) obtaining a voltage coefficient by measuring the first power of the circuit and calculating an open-circuit voltage of the first voltage output; (b) estimating an estimated power based on the voltage coefficient; and (c) repeating the steps (a) to (b) for a specific number of times, in which the specific number of times is determined based on a variation of the estimated power during a time period.

Abstract: A calibration method of insulating washer in a circuit board is provided, which includes steps of (a) establishing an equivalent circuit model corresponding to a metal via; (b) depicting an electric characteristic curve corresponding to the model; (c) calculating a capacitance and an inductance equation corresponding to the curve; (d) substituting parameter values of the equivalent circuit model, capacitance equation, and inductance equation into a characteristic impedance expression for being calculated, so as to obtain a first radius length value of an insulating washer for the metal via; (e) making a temporary insulating washer by employing the value; (f) reestablishing an equivalent circuit model corresponding to the metal via according to the temporary insulating washer; repeating Steps (b), (c), (d), (e), and (f); and when the first radius length value is converged into a fixed value, determining the fixed value as an optimum value for designing the insulating washer.

Abstract: A mode selection method is utilized in a mobile station. The mobile station can operate in a plurality of supported modes in a mobile communication system. The mobile communication system comprises a plurality of cells. The method comprises: calculating a suggested value of mode selection to match a current environmental state of the mobile communication system; changing a setting of mode selection according to the suggested value of mode selection; camping on a cell according to the setting of mode selection.

Abstract: A calibration method of insulating washer in a circuit board is provided, which includes steps of (a) establishing an equivalent circuit model corresponding to a metal via; (b) depicting an electric characteristic curve corresponding to the model; (c) calculating a capacitance and an inductance equation corresponding to the curve; (d) substituting parameter values of the equivalent circuit model, capacitance equation, and inductance equation into a characteristic impedance expression for being calculated, so as to obtain a first radius length value of an insulating washer for the metal via; (e) making a temporary insulating washer by employing the value; (f) reestablishing an equivalent circuit model corresponding to the metal via according to the temporary insulating washer; repeating Steps (b), (c), (d), (e), and (f); and when the first radius length value is converged into a fixed value, determining the fixed value as an optimum value for designing the insulating washer.

Abstract: The present invention relates to a carrier search method and a related device, and in particular relates to a carrier search method and a related device excluding overlapping bands from being searched in active mode to reduce the power consumption. A carrier search method is utilized in a mobile station. The mobile station operates in a plurality of supported modes, and each mode comprises a plurality of supported bands. The mobile station is in a mobile communication system comprising a plurality of cells. The carrier search method comprises: receiving a carrier search request to search network in an active mode; excluding overlapping bands from being searched in the active mode that are already utilized by inactive modes; searching RF channels in non-excluded bands in the active mode, wherein the active mode is a currently-utilized mode providing network service and the other modes are the inactive modes.

Abstract: A mode selection method is utilized in a mobile station. The mobile station can operate in a plurality of supported modes in a mobile communication system. The mobile communication system comprises a plurality of cells. The method comprises: calculating a suggested value of mode selection to match a current environmental state of the mobile communication system; changing a setting of mode selection according to the suggested value of mode selection; camping on a cell according to the setting of mode selection.

Abstract: Carrier search methods. Band use information is provided in a mobile station. The band use information comprises at least one identification and at least one supported band corresponding to the identification. An operation requesting a carrier search is received, and carriers are searched for from the band if the operation corresponds to the identification.

Abstract: A band selection method is utilized in a mobile station. The mobile station operates in a plurality of supported bands in a mobile communication system. The mobile communication system comprises a plurality of cells. The method comprises: calculating a suggested value of band selection to match a current environmental state of a mobile communication system; changing a setting of band selection according to the suggested value of band selection; camping on a cell according to the setting of band selection.