102 results about "Farad" patented technology

The invention provides an electronic cigarette casing and an electronic cigarette device, the electronic cigarette casing comprises a case body for accommodating electronic cigarettes, a first power supply configured in the case body and a charging control system for controlling the first power supply to charge the electronic cigarettes, the first power supply comprises a farad capacitor. The electronic cigarette casing using the farad capacitor instead of the traditional batteries to supply electrical power, can achieve the technical effects of safe and reliable charging / discharging, rapid charging, and more charging and discharging times.

The present invention provides a low dropout (LDO) regulator with a stability compensation circuit. A “zero frequency” tracking as well as “non-dominant parasitic poles' frequency reshaping” are performed to achieve a good phase margin for the LDO by means of the compensation circuit. In this compensation method neither a large load capacitor nor its equivalent series resistance is needed to stabilize a regulator. LDO regulators, in system on chip application, having load capacitors in the range of few nano-Farads to few hundreds of nano-Farads can be efficiently compensated with this compensation method. A dominant pole for the regulator is realized at an internal node and the second pole at an output node of the regulator is tracked with a variable capacitor generated zero over a range of load current to cancel the effect of each other. A third pole of the system is pushed out above the unity gain frequency of the open loop transfer function with the help of the frequency compensation circuit. The compensation technique is very effective in realizing a low power, low-load-capacitor LDO desirable for system on chip applications.

A method of pumping fluid including the steps of providing an electrokinetic pump comprising a pair of double-layer capacitive electrodes having a capacitance of at least 10−2 Farads / cm2 and being connectable to a power source, a porous dielectric material disposed between the electrodes and a reservoir containing pump fluid; connecting the electrodes to a power source; and moving pump fluid out of the reservoir substantially without the occurrence of Faradaic processes in the pump. The invention also includes an electrokinetic pump system having a pair of double-layer capacitive electrodes having a capacitance of at least 10−2 Farads / cm2; a porous dielectric material disposed between the electrodes; a reservoir containing pump fluid; and a power source connected to the electrodes; the electrodes, dielectric material and power source being adapted to move the pump fluid out of the reservoir substantially without the occurrence of Faradaic processes in the pump.

A method of pumping fluid including the steps of providing an electrokinetic pump comprising a pair of double-layer capacitive electrodes having a capacitance of at least 10−2 Farads / cm2 and being connectable to a power source, a porous dielectric material disposed between the electrodes and a reservoir containing pump fluid; connecting the electrodes to a power source; and moving pump fluid out of the reservoir substantially without the occurrence of Faradaic processes in the pump. The invention also includes an electrokinetic pump system having a pair of double-layer capacitive electrodes having a capacitance of at least 10−2 Farads / cm2; a porous dielectric material disposed between the electrodes; a reservoir containing pump fluid; and a power source connected to the electrodes; the electrodes, dielectric material and power source being adapted to move the pump fluid out of the reservoir substantially without the occurrence of Faradaic processes in the pump.

The present invention provides a low dropout (LDO) regulator with a stability compensation circuit. A “zero frequency” tracking as well as “non-dominant parasitic poles' frequency reshaping” are performed to achieve a good phase margin for the LDO by means of the compensation circuit. In this compensation method neither a large load capacitor nor its equivalent series resistance is needed to stabilize a regulator. LDO regulators, in system on chip application, having load capacitors in the range of few nano-Farads to few hundreds of nano-Farads can be efficiently compensated with this compensation method. A dominant pole for the regulator is realized at an internal node and the second pole at an output node of the regulator is tracked with a variable capacitor generated zero over a range of load current to cancel the effect of each other. A third pole of the system is pushed out above the unity gain frequency of the open loop transfer function with the help of the frequency compensation circuit. The compensation technique is very effective in realizing a low power, low-load-capacitor LDO desirable for system on chip applications.

A jump starter unit for starting large vehicles and other equipment using jumper cable at lengths up to fifty (50) feet. The jump starter includes a high output (200-300 amp) alternator and a large (2000 Farad) capacitor. The alternator is also used to maintain the capacitor's charge when the boost charge is not needed. The alternator and capacitor are integrated into an electrical system that includes an electronic control and a plurality of relays that provide the various charging and boost functions of the unit. In certain embodiments, the jump starter unit may take the form of a portable or mobile self contained apparatus having its own combustion to drive the high output alternator. In other embodiments, the jump starter unit may be integrated into a service vehicle, such as a tow truck or utility vehicle, and utilize the vehicle's engine to drive the jump starter's high output alternator.

The invention discloses a composition and a preparation method of a dielectric ceramic material for a multilayer ceramic capacitor with high temperature insulation performance. The composition comprises a main component of BaTiO3 and the following auxiliary additives, in relative to 100 g of BaTiO3: 0.1-1.0 g of MnCO3, 0.1-2.0 g of MgO, 0.1-2.0 g of BaCO3, 0.1-2.0 g of CaCO3, 0.1-2.0 g of Al2O3, 0.5-2.0 g of SiO2, 0.1-3.0 g of at least one or more compounds selected from Y2O3, Er2O3, Ho2O3, Dy203 and Gd2O3 and 0.5-2.0 g of at least one or more compounds selected from MoO3, SrO, WO3 and V2O5. The multilayer ceramic capacitor is manufactured by using the dielectric ceramic material comprises medium layers and inner electrodes alternated with the medium layers; and the inner electrodes are composed of nickel (Ni) or a nickel alloy. The multilayer ceramic capacitor has good high temperature insulation performance and meets X8R characteristic of an American EIA standard. At a temperature of 125 DEG C, a product of resistance * capacity is higher than 100 ohm-farad.

An optoelectronic semiconductor device is disclosed wherein the device is a vertical-cavity surface-emitting laser or a photodiode containing a section, the top part of which is electrically isolated from the rest of the device. The electric isolation can be realized by etching a set of holes and selective oxidation of AlGaAs layer or layers such that the oxide forms a continuous layer or layers everywhere beneath the top surface of this section. Alternatively, a device can be grown epitaxially on a semi-insulating substrate, and a round trench around a section of the device can be etched down to the semi-insulating substrate thus isolating this section electrically from the rest of the device. Then if top contact pads are deposited on top of the electrically isolated section, the pads have a low capacitance, and a pad capacitance below two hundred femto-Farads, and the total capacitance of the device below three hundred femto-Farads can be reached.

A pest deterrent device attracts the attention of a pest with ultrasonic noise and then produces a series of flashes to drive off the pest. In one embodiment, the device continuously produces ultrasound, changing the ultrasound when a pest is detected. In another embodiment, the device does not produce ultrasound until a pest is detected. In a further embodiment, the flash charging circuit is used to modulate the ultrasound while the flash is operated. In a particular embodiment, four ultrasonic speakers are arranged in a series-parallel configuration with a total capacitance of about 0.2 micro-Farads achieve 120 dB of sound output with a supply voltage of about 12-18 V.

The invention relates to a tire-type gantry container crane with power supplied by a speed-control fuel-saving diesel generating set, which is characterized in that the crane comprises an electrical system; a three-phase AC power source generated by the diesel generating set capable of operating at variable speed, together with a speed control device thereof, is converted into a DC power source via a power electronic reversible rectifying device used for controlling the generated electricity quantity of the diesel generating set, and then direct current is directly supplied to frequency converters driving mechanisms to operate; the DC power source is converted into an AC power source with adjustable frequency so as to be used for driving a hoisting mechanism, a cart mechanism and a trolley mechanism; a super capacitor set is connected with a DC side bus in parallel; the total capacitance of the super capacitor set is below 10 farad; and a central control link is formed by an intelligent industrial control system and is used for detecting the current and voltage states on the DC bus so as to calculate the power situation of the DC bus, and then the power situation is used as the speed control basis of the diesel generating set so as to control the rotating speed and torque of a generator. The container crane has the advantages of low cost, energy conservation and environmental protection.

An electric double layer capacitor is composed of a pair of current collectors, a positive polarizable electrode provided on one of the pair of current collectors, a negative polarizable electrode provided on the other of the pair of current collectors, a separator between the positive and negative polarizable electrodes, and an organic electrolytic solution which impregnates at least the positive and negative polarizable electrodes and the separator. The capacitor has a theoretical amount of ions Qt defined asQt (moles)=C×V÷96,500,wherein C is the rated capacitance (farads) of the capacitor and V is the rated voltage (volts), and an amount of ions Qe in the organic electrolytic solution, such that Qe / Qt=1.7 to 3.5. The capacitor has a high voltage rating, excellent cycle characteristics during high-current charging and discharging, and a low internal resistance in low-temperature environments.

A radio frequency amplifier circuit has a signal input and a signal output. A primary amplifier is connected to the signal input and the signal output. A low dropout voltage regulator is connectible to an external power supply and to the primary amplifier, and generates a set voltage to bias the primary amplifier from a variable voltage provided by the external power supply. An equivalent capacitance circuit is connected to the primary amplifier and to the low dropout voltage regulator. The equivalent capacitance circuit defines a low dropout voltage regulator output capacitance in a nano-Farad to micro-Farad range absent any passive capacitor components corresponding thereto to maintain linearity of the primary amplifier.

A communication module with outage detection and alarm functions comprises: an MCU; a weak current interface detection circuit connected with the MCU, wherein an input end of the weak current interface detection circuit is connected with a weak current interface of an electric energy meter to collect a voltage value of a power end of the weak current interface of the electric energy meter; a strong current interface detection circuit connected with the MCU, wherein an input end of the strong current interface detection circuit is connected with a strong current interface of the electric energymeter; a communication circuit connected with the MCU, wherein the communication circuit is connected with an antenna; a DC-DC circuit connected with the MCU, wherein an input end of the DC-DC circuit is connected with a power end of the weak current interface power end of the electric energy meter and is configured to supply power to the MCU, the communication circuit and a Farad capacitive circuit; and the Farad capacitive circuit connected with the DC-DC circuit, the MCU and the communication circuit. The communication module with outage detection and alarm functions and the outage detection alarm method can achieve outage detection and alarm functions for the electric energy meter and provide fault information for power enterprises.

An electrokinetic pump achieves high and low flow rates without producing significant gaseous byproducts and without significant evolution of the pump fluid. A first feature of the pump is that the electrodes in the pump are capacitive with a capacitance of at least 10−4 Farads / cm2. A second feature of the pump is that it is configured to maximize the potential across the porous dielectric material. The pump can have either or both features.

The invention discloses a control device of an electrical device. The control device is provided with a first power supply, a second power supply and a third power supply. The power of the first power supply is smaller than the power of the third power supply. The second power supply is formed through serial connection of a plurality of farad capacitors. After the electrical device enters a low-power-consumption mode, a main control chip cuts off connection of the third power supply and a power-supplying power supply through a second switching circuit and then uses a first switching circuit and a commutation circuit to control the first power supply and the second power supply to supply power alternatively. The control device reduces effectively the power consumption of the electrical device and has the advantages of being safe, environment friendly and long in service life. The invention also discloses the electrical device with the control device and a control method applied to the electrical device.

The invention discloses a composite monitoring device for electrode difference protection and grounding of a direct-current system. After one path of the anode and the cathode of a direct-current system passes through a breaker, the anode passes through a Hall current sensor, and the cathode then passes through the Hall drain current sensor; thus, the anode and the cathode simultaneously pass through the Hall drain current sensor to be led out; the other path of the anode and the cathode of a direct-current system directly supplies power to a power supply modifier; after changing high voltage to low voltage, the power supply modifier supplies power to an anode Hall current sensor, the Hall drain current sensor, a cathode Hall current sensor, an MCU microcontroller, a relay, an electromagnet, 485 communication, an alarming port, a fault indicating lamp and a set dialing device through farad capacitor; the anode Hall current sensor, the cathode Hall current sensor and the Hall drain current sensor transfer the detected signals to the MCU microcontroller, and then results are transferred to each above action element after being calculated and analyzed by the MCU microcontroller so as to perform corresponding action.

The invention relates to a voltage pulse peak amplitude analyzer which comprises a peak sensing circuit, an AD conversion circuit, a counting accumulation circuit and a time sequence control circuit. A capacitive voltage follower of the peak sensing circuit comprises a bidirectional switch diode group and a miicromicro farad capacitor, and has high response speed. Tests prove that the circuit can be used for continuously sensing waveforms with a certain failing edge and the frequency below 350kHz, such as a sine wave, a sawtooth wave and the like, has no requirements for waveform leading edge time, and is especially suitable for measuring a nuclear pulse signal. The analyzer simplifies the peak treating process, and has simple and reliable circuit, cost saving and convenient popularization.

The invention discloses an inductance, capacitance and resistance standard device for performing quantity transmission in the process of detecting reactance instruments by a metering department. The inductance, capacitance and resistance standard device comprises a box body, as well as wiring terminals, a selecting disc, a function identifier and connecting wires which are arranged on the box body. In work, the inductance, capacitance and resistance standard device can be flexibly connected with a variety of standard instruments for parameter combination; wiring is simple and high in accuracy; the inductance, capacitance and resistance standard device can measure and output LCR (inductance, capacitance and resistance) parameters, and can measure all parameters by once wiring; data can be directly traced back to a standard inductance (H Henry standard), a standard resistance (omega ohm standard) and a standard capacitor (F farad standard); therefore, the inductance, capacitance and resistance standard device is a standard device suitable for measurement of electromagnetic basic quantity values (inductance H, capacitance C and resistance omega) by metering institutions in all levels.

The invention relates to a power system for farad capacitor electric motor car, especially relating to a power system for farad capacitor electric motor car, able to use solar energy, where the farad capacitor has the heavy current fast charging characteristic of a capacitor and also the energy storage property of a battery, and the characters of low series equivalent resistance, long service life, etc. And the farad capacitor has large capacity largely greater than that of an electrolytic capacitor of the same bulk and power density above tens of times greater than that of a Li-ion battery; and as compared with a battery of the same bulk, a super capacitor has above tens of times power density and above 100 times charging and discharging rate; and as compared with a storage battery, the super capacitor has the advantages of wider operating temperature range, no pollution, free maintenance, etc. The power system fully uses the advantages of the farad capacitor and solar energy battery plate and highly and fully uses the storage energy of the farad capacitor and the solar energy.

The invention provides a wireless passive measuring device. A first microcontroller controls the input of an electric source through a double-voltage power driving module; the electric source supplies electricity to a wireless passive measuring circuit sequentially through the double-voltage power driving module and a primary coil; the first microcontroller realizes the communication with the wireless passive measuring circuit through a first wireless module; the electric energy is coupled to a rectification and charging management module by a secondary coil and stored in a farad capacitor; the electricity is supplied to a second microcontroller and a sensor module via a voltage stabilizing circuit; the second microcontroller detects charging-discharging voltage of the farad capacitor in real time through a voltage monitoring module, and the farad capacitor is charged through an external control circuit; and the measured physical quantity is obtained by the sensor module and transmitted to the external control circuit through a second wireless module under the control of the second microcontroller, thereby realizing wireless passive measurement of the physical quantity. The wireless passive measuring device is applied to places where energy transmission and signal reading cannot be conducted by using conducting wires; and multiple simulative or digital physical quantities can be measured.

A capacitance charge device with adjustable clamping voltage is disclosed in the invention, which includes a high-farad capacitance and a power supply device for charging to the high-farad capacitance. In addition, a switch device is connected between the power supply device and the capacitance, and through the on / off operations of the switch device, the on / off conductions between the power supply device and the capacitance can be controlled. Besides, a clamping circuit is connected between the switch device and the capacitance and also connected to the output terminal of the power supply device. In addition, the clamping circuit has a clamping voltage, which can be compared with the actual voltage so as to control the on / off operations of the switch device and in turn control the on / off conductions between the power supply device and the capacitance. In addition, the invention can constrain the battery voltage in the clamping voltage of the clamping circuit. By doing so, the system can be ensured not to be down because of a sudden tremendous voltage drop of the battery, and the clamping voltage is adjustable according to the variations in product design.

Exemplary embodiments of the present disclosure include dipole arrangement, or an array of dipole arrangements which can include at least two poles extending in opposite direction from one another, each of the poles including capacitor and an inductor(s). A lattice balun can be located at a center gap between the poles, and can be a 50 ohm lattice balun. The capacitor(s) can be a 10.67 farad capacitor. The inductor can be a 26.7 Henry inductor. The length of each of the poles can depend on a wavelength of a magnetic field generated by the dipole arrangement, or it can depend on a distance from the dipole arrangement to a subject to be imaged.

The invention discloses a mobile phone uninterruptible power supply system and an elastic switch for the same. The uninterruptible power supply system comprises a main battery and an auxiliary battery as well as a mobile phone circuit mainboard, wherein the auxiliary battery is formed by a Farad capacitance. A positive electrode and a negative electrode of the auxiliary battery are at least provided with a diode, the electric power in the main battery can flow into the auxiliary battery through the diodes so as to charge the auxiliary battery, and the electric power can be prevented from flowing back to the main battery after the voltage of the main battery is dropped through the diodes. The elastic switch consists of a metal sheet I and a metal sheet II, wherein the metal sheet I has elasticity, one end of the metal sheet I is fixed, the other end of the metal sheet I is riveted with a projection; both ends of the metal sheet II are fixed; the end of the metal sheet I which is riveted with the projection is elastically and electrically connected with one end of the metal sheet II; and when the projection suffers pressure F, the electric connection between the metal sheet I and the metal sheet II is disconnected, and when the pressure F suffered by the projection disappears, the electric connection between the metal sheet I and the metal sheet II is restored.

The invention relates to an active self-luminescent LED lamp. The prior solar light emitting device is unlikely to work stably for long time. In order to solve the technical problem, the active self-luminescent Led lamp comprises an LED lamp assembly, a farad capacitor bank and a solar voltage-stabilizing charging power supply including a solar cell panel and a voltage-stabilizing diode, wherein the solar voltage-stabilizing charging power supply charges the farad capacitor bank through a diode D2. The active self-luminescent LED lamp is characterized in that the farad capacitor bank charges an electrolytic capacitor C3 through a current limiting device; and the electrolytic capacitor C3 releases a pulse current to the LED lamp through an oscillation circuit. The active self-luminescent LED lamp has the advantages of simple structure, low cost, and wide application, and can work continuously in rainy days and can provide sound-light alarm. The active self-luminescent LED lamp can be used for decorative lamps, automotive anti-collision lamp, obstacle alarm lamp, highway barrier lamp, pharos for ports, runway lights for airport and other various kinds of traffic caution lights.

Electrical devices having a plurality of stacked electrode layers are described. At least one of the electrode layers contains continuous fibers that are infused with carbon nanotubes. The continuous fibers can be disposed upon an electrically conductive base plate. The electrical devices can further contain an electrolyte contacting each electrode layer and a layer of separator material disposed between each electrode layer, in which case the electrical devices can form a supercapacitor. Such supercapacitors can have a capacitance of at least about 1 Farad / gram of continuous fibers. The capacitance can be increased by coating at least a portion of the infused carbon nanotubes with a material such as, for example, a conducting polymer, a main group metal compound, and / or a transition metal compound. Methods for producing the electrical devices are also described.

The invention relates to an ultra-mobile power supply. The ultra-mobile power supply is characterized in that the ultra-mobile power supply comprises a rectifying circuit, an energy control circuit, a rectifying output circuit, a protection circuit, a DC-DC limiting circuit, a farad capacitor and a voltage stabilization output circuit, the input end of the rectifying circuit is connected with the electric supply, the output end of the rectifying circuit is connected with the input end of the energy control circuit, the input end of the rectifying output circuit is connected with the output end of the energy control circuit, the output end of the rectifying output circuit is connected with a connecting pin of the farad capacitor, and therefore the electric supply input charge structure is formed; the DC-DC limiting circuit is provided with a USB input end, the output end of DC-DC limiting circuit is connected with a connecting pin of the farad capacitor, and therefore a USB input charge structure is formed; the input end of the protection circuit is connected with the output end of the rectifying circuit, the second output end of the energy control circuit and the feedback signal output end of the energy control circuit, the output end of the protection circuit is connected with the control input end of the energy control circuit, and therefore a feedback control structure of the energy control circuit is formed. Due to the fact that the super capacitor energy storage structure is formed, the ultra-mobile power supply has the advantages of being quite high in charge speed, high in efficiency, safe and reliable.

The invention discloses an inbuilt miicromicro farad stage capacitance intermittent microcurrent second-level time delay circuit, which is provided with a mirror image current source, a switching tube, a capacitance charging circuit, a burst pulse generating circuit and an output circuit, wherein the output end of the mirror image current source and the output end of the burst pulse generating circuit are respectively connected with two input ends of the switching tube; the output end of the switching tube is connected with the input end of the capacitance charging circuit; the output end of the capacitance charging circuit is connected with the input end of the output circuit; and the output end of the output circuit is connected with a subsequent signal processing circuit. When a mirror image source produces microcurrent to charge the capacitance by the switching tube, a burst pulse signal controls the switching on and off of the switching tube to realize the intermittent charging to the capacitance by the microcurrent so as to prolong charging time and reduce inbuilt capacitance value in an integrated circuit; when the capacitance charging circuit outputs the voltage value which reaches the preset value, the output circuit converts an analog signal into a digital signal to be provided for the subsequent signal processing circuit.

The invention discloses an organic electrolyte-based micro super conductor and a manufacturing method thereof and belongs to the technical field of microelectronic machinery. In the micro super conductor, a microelectrode, a porous polymer isolator and a microelectrode are arranged on a polyimide support body in turn; electrolyte is soaked in the microelectrode and the isolator ; the same polyimide support body is covered on an assembly surface to form a capacitor unit; the polyimide support bodies of a plurality of capacitor units are connected with one another and wound to form a coin-shaped structure; both sides of the coin-shaped structure are provided with aluminum sealing covers which serve as electrode terminals for collecting fluid; and the aluminum sealing covers are contacted with the microelectrode in large areas, so that the resistance of the micro super conductor can be reduced effectively, and the energy storage characteristic of the micro super conductor is further improved. The working voltage of the micro super conductor is 2.5V, the volume is 0.2 farad, the internal resistance is only 15 ohms, the rated discharge current is up to 5 milliamperes, the size is only 50 mm<3>, and the high energy storage characteristic is achieved.

The invention provides a laptop with a power failure protection module, and relates to the technical field of computers. The laptop comprises an adaptor, a battery charging-discharging module and a laptop main board. The laptop has the structural characteristics that the laptop also comprises the power failure protection module consisting of a control circuit, a charging circuit, a farad-class energy storage capacitor and a discharging circuit which are connected in series in sequence. By the adaptor, the commercial power supplies direct voltage to power a power supply mode detection circuit in the laptop main board and simultaneously charges the battery charging-discharging module and the power failure protection module; and the outputs of the battery charging-discharging module and the power failure protection module are connected with the power supply mode detection circuit respectively. Compared with the prior art, the battery charging-discharging module can be replaced without being powered off, simultaneously avoid the influences on the normal work of a user due to power failure and provide the high-quality power for the computer system.

The invention relates to a power-off protection circuit for DLP TV, which comprises at least a farad capacitor, a triode transistor Q1, resistors R1 and R2 and at least a socket of an input end and at least a socket of an output end; wherein, the socket of the input end is inserted on power supply; a fan is inserted on the socket of the output end; when the DLP TV works normally, the power supply charges up the farad capacitor through the socket of the input end, the resistor R1 and the triode transistor Q1 and the farad capacitor is fully charged in the start time of the DLP TV and at this time the fan inserted on the socket of the output end can work properly; when the power supply is cut off, the triode transistor Q1 stops, and at this time the farad capacitor discharges the socket of the output end in a single direction and the fan inserted on the socket of the output end can still continue to work. The power-off protection circuit has the advantages that the problem of break-off of the fan caused by sudden power cut is thoroughly solved, which means that after the power is suddenly cut off, the fan continues to rotate so as to protect the life of a bulb and a whole machine; in addition, the circuit is simple in fabrication, easy in debugging, convenient in remanufacturing and low in cost.