Abstract: The present invention relates to a fluid metering apparatus, which includes a fluid container and a metering device. The container has a hollow part for storing fluid and the metering device includes electrical metering means and data processing means. The electrical metering means detects change of a physical quantity of the fluid in the container, and the characteristic is expressed with an electrical mode. The data processing means treats the electrical information obtained by the electrical metering means, and converts the electrical information into a physical characteristic of the fluid. The electrical metering means includes a metering component, which provides a strip line component. Moreover, the electrical information is an electrical signal selected from a capacitance value, an inductance value or an impedance value of the strip line component or a combination of the preceding values.

Abstract: A power supply apparatus is disclosed. The power supply apparatus comprises a determining device, an identifier, a multi-power-output selecting mechanism and a transmission mechanism, for selecting power in the form of varying voltage for outputting therefrom. Wherein the multi-power-output selecting mechanism is electrically connected to the determining device and the transmission mechanism, and the identifier is provided in the transmission mechanism so that the determining device outputs an electrical signal based on the corresponding identifier and transmits the electrical signal to the multi-power-output selecting mechanism. The multi-power-output selecting mechanism selects the converted power based on the output voltage signal corresponding to the electrical signal and outputs it via the transmission mechanism.

Abstract: The present invention relates to a variable voltage regulating device for modulating output voltage, comprising the implementation means of duty cycle modulation and control signal modulation. The duty cycle modulation mechanism entails the use of pulse signals with different duty cycles to produce different voltage signals in the resistor-capacitor network, which are regulated to obtain a control voltage. The original output voltage is then modulated by the control signal and the resistor network based on the Kirchhoff's current law to produce a new output voltage. The control signal modulation mechanism uses the field effect transistor switch to control the resistor network and then uses the resistor network and the Kirchhoff's current law to modulate the original output voltage and deliver a new output voltage.

Abstract: A fluid measuring device for use in a fluid storage tank, comprising a logic operation unit, a capacitive sensor, and a capacitance sensing circuit; wherein the capacitance sensing circuit is driven by the constant current input to perform the detection of the capacitance value of the capacitive sensor, then perform the conversion from the capacitance value into the signal on the physical characteristics of the fluid body by the logic operation unit. The signal on the physical characteristics can include any of the concentration, density, and surface level of the fluid body. Furthermore, the capacitive sensor can further comprise a reference capacitor and a detection capacitor for detecting the fluid, the latter capacitance is obtained from a differential circuit of the capacitance sensing circuit.

Abstract: A transmission fluid concentration detector for detecting the fluid concentration in a fluid circulating device is provided, comprises a light-sensing device that consists of at least a light sensor for converting an optical signal into an electrical signals wherein the electrical signal is a signal output by the light sensor under illumination corresponding to the intensity of the optical signal; a light source device; a temperature detector; and a computing device comprising a logic operation means to process electrical signals output by the concentration detector and compute corresponding fluid concentration. The light sensor of the light sensing device and the light source device are arranged oppositely at two sides of a partial space of the fluid circulating device such that the light beam emitted by the light source device can be projected on the light sensor of light sensing device through the fluid in the fluid circulating device.

Abstract: The present invention relates to a fuel cell system having activation assist apparatus and method, wherein the method aims to provide an effective operating method for activating the fluid drawing device in the fuel cell system through external force. The external force acts to activate the fluid drawing device without going through the internal fuel cell. Another object of the activation method is to control the activation of fluid drawing device through an internal chargeable cell and a micro control unit. The activation method further detects and analyzes the status of fuel in the fuel cell through the micro control unit to determine whether to activate the fluid drawing device. In case the chargeable cell is unable to activate the micro control unit or fluid drawing device, it can be recharged and then activate the micro control unit or the fluid drawing device.

Abstract: The present invention relates to a micro fuel cell system comprising a fuel cell power-generating member that undergoes electrochemical reaction with fuel and outputs power; an electrical transmission mechanism to provide electrical signal transmission and power transmission in the micro fuel cell system; a fuel circulation module for storing and transporting the fuel or residual solution from the power-generating member after electrochemical reaction; a sensor module for detecting the physical properties of the fuel and outputting electrical signals corresponding to said physical properties; a computing module that selects and executes corresponding control procedure based on the corresponding electrical signals of physical properties; and a holder; wherein the power-generating member, the electrical transmission mechanism, the fuel circulation module, the sensor module and the computing module are arranged in the holder.

Abstract: A capacitance fuel volume measuring apparatus for a fuel cell is disclosed. The apparatus utilizes two electrode boards disposed in a fuel tank and an elastic element to perform calculation of the fuel volume in the fuel tank. The apparatus includes a structure disposed in the fuel tank and a control unit. The structure in the fuel tank includes two electrode boards and an elastic element, which maintains the liquid level of the fuel in a level and transmits essential data corresponding to the distance between the two electrode boards to the control unit for calculation such that the control unit may obtain the volume of the fuel in the fuel tank.

Abstract: A refractive fuel concentration detector comprises mainly a light source device and a light-sensing device. The light source device supplies light source incident on the fuel and refracts light source to the light-sensing device such that a plurality of light sensor therein would respectively output a corresponding electrophysical quantity signal based on the light quantity received. Moreover, a circuit means can be used to obtain concentration information of fuel based on the electrophysical quantity signal output by the light sensors and the tag information of those light sensors.

Abstract: The present invention discloses a fuel cell activation method having an operational procedure formed by an electrical power generator, a fuel processing unit, a fan unit and a control unit. The operational procedure includes the step of the control unit selects a startup mode; the step of the control unit starts up the fuel processing unit such that liquid fuel is injected into an anode of the electrical power generator for T1 time; the step of the control unit selects to start up a specific electrical load of the internal load power-supply circuit such that the electrical power generator outputs electrical power to the specific electrical load of the internal load power-supply circuit based on the power output form of a section near the maximum output power of the output voltage-output power curve and the control unit selects to start up the fan unit for T2 time; and the step of the control unit selects to turn off the fuel processing unit and the fan unit for T3 time.

Abstract: The present invention discloses a fuel cell capable of power management, including: a fuel cell power generator; an internal secondary battery; an internal load, which is a control member inside the fuel cell; an external load power-supply circuit, which converts electrical power generated by the fuel cell power generator into a specific output form and transmits the electrical power to an exterior of the fuel cell; and an internal load power-supply circuit, which converts electrical power into a specific output form and transmits the electrical power to the internal load of the fuel cell. Additionally, the internal load power-supply circuit further includes a selection means. By selecting the selection means, electrical power generated either by the fuel cell power generator or by the internal secondary battery is converted into a specific output form.

Abstract: The invention discloses a shut-down procedure for the fuel cell, which includes a portion of electricity generation, a control unit, an inner load end, an outer load end, a fan, a pump and means of judging the temperature difference between the inside and the outside of the fuel cell, and works with the fan and the pump working continuously under the control of the control unit, the shut-down procedure starting under the judgment of the control unit and comprising steps of: starting under the selection of the control unit, together with stopping the work of the pump under the selection of the control unit; judging whether the temperature difference between the inside and the outside of the fuel cell is lower than a specified value or not, by means of the means of judging the temperature difference between the inside and the outside of the fuel cell; and stopping the work of the fan under the selection of the control unit if the temperature difference between the inside and the outside of the fuel cell is lowe

Abstract: A fuel cell voltage stabilization apparatus is disclosed. The apparatus utilizes electronic circuits for voltage modulation to stabilize and fix the voltage load for a fuel cell. The apparatus comprises a voltage boost circuit and a voltage reducing circuit, which are realized by electronic circuits to stabilize an output voltage of the fuel cell and fix the output voltage to the loading.

Abstract: The present invention provides a fuel cell electric power sensing methodology and the applications thereof.

Abstract: A fuel cell electricity measuring apparatus is disclosed. The apparatus comprises a fuel cell and a measuring unit. The measuring unit comprises an electricity measuring device configured to measure a cumulative amount of an electricity amount output by the fuel cell and a processing device configured to calculate and obtain a remaining electricity amount information according to the cumulative amount measured by the electricity measuring device. The fuel cell is electronically connected to the measuring unit.

Abstract: This invention comprises a fuel cell power generation control methodology and the applications thereof, comprising the step of providing a DC converter and a fuel cell and then electrically connecting an input side of the DC converter to an output side of the fuel cell; converting output electricity of the fuel cell of the DC converter into a constant voltage output; the DC converter converts the output current of the fuel cell into a constant voltage (CV); and the DC converter keeps the DC converter input side within the planned limit of a constant current (CC). In other words, the output current of the fuel cell is kept within the planned limit of a constant current, wherein the planned limit of the constant current (CC) is the current limit determined by the quantity of MEAs in the fuel cell and the current limit below the optimum power interval generated by the MEA.

Abstract: A DC-DC converter circuit includes an inductor having an inductor current, an inductor current emulation circuit for producing an emulated inductor current, and a control circuit coupled with the emulation circuit for receiving the emulated inductor current and determining a peak inductor current for the DC-DC converter.

Abstract: A voltage transducer for a fuel cell is a device to control steady outputs of voltage and current by means of electronic circuit, which is capable of regulating instantaneous voltage and current at the time of converting output of a fuel cell to a load for the afterward circuit stages being operated under a normal working voltage. That is, the electronic circuit performs and changes characteristic curves of the fuel cell and the characteristic curves are to illustrate changes of the voltage and current of the fuel cell while a load is connected to the fuel cell externally.

Abstract: A method of forming a silicon nitride layer is provided. A deposition furnace having an outer tube, a wafer boat, a gas injector and a uniform gas injection apparatus is provided. The wafer boat is positioned within the outer tube for carrying a plurality of wafers. The gas injector is positioned between the outer tube and the wafer boat. Similarly, the uniform gas injection apparatus is positioned between the outer tube and the wafer boat. Gas injected into the uniform gas injection apparatus is uniformly distributed throughout the entire deposition furnace. To form a silicon nitride layer on each wafer, a silicon-containing gas is passed into the deposition furnace via the gas injector and a nitrogen-mixed carrier gas is passed into the deposition furnace via the uniform gas injection apparatus.

Abstract: The present invention relates to a method and an apparatus for measuring the liquid level in a container of a fuel cell, comprising: a container, a plurality of sensors and a circuit device. The container has a chamber for storing the liquid fuel. These sensors are respectively electrically connected to the circuit device and respectively comprise means for measuring the liquid level, so as to provide the liquid level information. The circuit device has a logical calculator for converting the electrical signal related to the liquid level information into the electrical signal related to the quantity of the liquid fuel. By measuring the liquid level via these respective sensors, a plurality of reference points corresponding to the liquid level can be obtained, and the amount of the liquid fuel remaining in the container can be determined by means of conversion of the electrical signal related to respective reference points by the logical calculator of the circuit device.