摘要:
The present invention relates to a fuel cell with protective device, comprising a plurality of fuel cell stacks, a fuel cell protection circuit unit and a switch control device. The fuel cell protective circuit unit consists of a plurality of channel selection devices and a series-parallel circuit unit. The channel selection devices respectively correspond to one of the fuel cell stacks. The series-parallel circuit unit is electrically connected to the channel selection devices and has an electric output terminal. The fuel cell stacks are respectively electrically connected to the corresponding channel selection devices in the fuel cell protection circuit unit, and the switch control device controls the selection by the corresponding channel selection devices of an electrically open state or an electrically closed state between respective fuel cell stack and the series-parallel circuit unit.
摘要:
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. The light sensor then outputs an electrical signal corresponding to the fluid concentration to the computing device, which would determine the corresponding fluid concentration based on the electrical signals output by the light sensing device and the temperature detector.
摘要:
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.
摘要:
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.
摘要:
The present invention relates to a feedback fuel cell device consisting of: a fuel cell, a circuit mechanism and a logic processor. The fuel cell is electrically connected to the circuit mechanism that contains an electric power integration mechanism and circuit for detecting an open-circuit voltage. In the circuit mechanism, the electric power integration mechanism is electrically connected to a first membrane electrode assembly and provides a power output, and the means for detecting the open-circuit voltage is electrically connected to a second membrane electrode assembly. The logic processor is electrically connected to the circuit mechanism and contains a temperature determination means, which determines a temperature value corresponding to the open-circuit voltage of the second membrane electrode assembly through the means for detecting the open-circuit voltage.
摘要:
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.
摘要:
In an apparatus for over-voltage and over-current protection for a step-up current-mode converter including an inductor connected via a phase node to a switch that is switched by a control signal to convert an input voltage to an output voltage, a controller has a multiplexed pin, and a resistor and a capacitor are connected in parallel between the multiplexed pin and the phase node. In an over-voltage protection mode, the controller senses the voltage on the multiplexed pin, and in an over-current protection mode, the controller supplies a current to flow through the resistor and senses the voltage on the multiplexed pin.
摘要:
The present invention relates to a fuel cartridge monitoring device for fuel cell, comprising: a fuel monitoring device for fuel cells consisting of a fuel solution mixing means, a fluid metering means, and a fluid feeding means; a fuel cartridge for storing high concentration of liquid fuel; a pure water cartridge for storing pure water; a supply cartridge for storing solution mixture of fuel and pure water; opening the fluid feeding means to allow the fluid in fuel cartridge and pure water cartridge to respectively enter the supply cartridge until the solution mixture of fuel and pure water reaches a predetermined supply level, and then closing the fluid feeding means to stop fluid supply from fuel cartridge and pure water cartridge; a fluid metering means for monitoring the level of fuel solution in the supply cartridge; and when the fluid metering means determines that the fuel solution level falls below the predetermined level, selectively opening said fluid feeding means.
摘要:
In an apparatus for over-voltage and over-current protection for a step-up current-mode converter including an inductor connected via a phase node to a switch that is switched by a control signal to convert an input voltage to an output voltage, a controller has a multiplexed pin, and a resistor and a capacitor are connected in parallel between the multiplexed pin and the phase node. In an over-voltage protection mode, the controller senses the voltage on the multiplexed pin, and in an over-current protection mode, the controller supplies a current to flow through the resistor and senses the voltage on the multiplexed pin.
摘要:
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.