108 results about "Reservoir capacitor" patented technology

A latch comparator is disclosed. The latch comparator includes a first reservoir capacitor; a preamplifier including first and second transistors respectively connected to first and second inputs, the first and second transistors selectably connectable to a first terminal of the first reservoir capacitor, and third and fourth transistors respectively connected to the first and second inputs, the third and fourth transistors selectably connectable to a second terminal of the first reservoir capacitor; and a latch, including a first portion serially connected between the first and third transistors and connected to a first output, and a second portion serially connected between the second and fourth transistors and connected to a second output.

A DC-DC converter for converting an input voltage at an input node, the converter comprising: first and second inductor nodes for connection of an inductor therebetween; first and second flying capacitor nodes for connection of a flying capacitor therebetween; a first switching network for selectively connecting the first flying capacitor node to each of the input node and the first inductor node; a second switching network for selectively connecting the second flying capacitor node to each of the input node and a reference voltage node; and reservoir circuitry, comprising: first and second reservoir capacitor nodes for connection of a reservoir capacitor therebetween; a third switching network for selectively connecting the first reservoir capacitor node to each of the first and second flying capacitor nodes; a fourth switching network for selectively connecting the second reservoir capacitor node to each of the second flying capacitor node and the reference voltage node.

A submodule (120) for a modular multilevel converter (102) includes a bridge cell (220) and an active power decoupling module (140). The bridge cell includes an energy storage capacitor (222) and a first bridge pair of power switches (224, 224') connected in parallel with the energy storage capacitor. The active power decoupling module includes first and second terminals (150, 152), a second bridge pair (169) of power switches (170, 170') connected between the first and second terminals and in parallel with the energy storage capacitor, and an inductor (166) connected in series with a power decoupling capacitor (168) to a junction between the power switches of the second bridge pair of power switches.

An isolated switching power supply circuit is compact, high-efficiency, and low noise. It includes a transformer T1 which has a primary winding wound with NP turns and a secondary winding wound with NS turns, a drive switch Q1 and an active clamp switch Q2 configuring a primary side half-bridge, a boost capacitor CBULK1 that charges a discharge energy of the transformer, rectifier diodes D1 and D2 connected in series, a tank capacitor CT1, and an output capacitor COUT1. A secondary side winding voltage, when the drive switch Q1 or the active clamp switch Q2 is on, is held in the tank capacitor CT1, and by superimposing the secondary winding voltage, when the drive switch Q1 or the active clamp switch Q2 is off, on the voltage held in the tank capacitor CT1, the configuration is such that output voltage VOUT equals boosted voltage VBULK times (NS divided by NP).

A pixel includes a photodiode, a supply input, an output and a reading node. A system for reading a charge contained in the photodiode of the pixel includes a biasing circuit configured to bias the output of the pixel. The output of the pixel is connected through a first switch to the biasing circuit. The supply input of the pixel is connected to an energy storage capacitor and to a first end of a second switch. A second end of the second switch is intended to be connected to a DC voltage source. A control circuit controls operation of the first and second switches whereby the pixel is disconnected by the second switch during digitization and powered from the energy storage capacitor.

Systems and apparatus for enabling efficient energy harvesting are disclosed. A power conversion apparatus includes at least first and second inductors, a rectifier, a load, and at least first and second energy storage capacitors. The first inductor is galvanically isolated from the second inductor, and each of the first inductor and the second inductor is an output inductor of the power conversion device, and the rectifier is configured to charge at least the first energy storage capacitor and the second energy storage capacitor. Each of the at least first energy storage capacitor and the second energy storage capacitor is coupled to a load, and an interconnection of the at least first energy storage capacitor and the second energy storage capacitor is switched between at least one of an electrical series connection to an electrical parallel connection and an electrical parallel connection to an electrical series connection.

The preparation method of the dielectric energy storage capacitor and the dielectric energy storage capacitor provided in this application are prepared by 3.25 La 0.75 TiO 12 Ceramic thin film precursor solution, preparation of Bi 3.25 La 0.75 TiO 12 Ceramic thin film, depositing metal electrodes onto the Bi 3.25 La 0.75 TiO 12 The dielectric energy storage capacitor is obtained on the ceramic film. The preparation method of the dielectric energy storage capacitor adopts a lead-free material system, which reduces the pollution to the environment and the harm to the human body, expands the application of the system in the field of energy storage, and has a simple process. And by regulating the annealing process, the Bi 3.25 La 0.75 TiO 12 The synergistic effect of the preferential orientation and interface engineering achieves reduced residual polarization while improving the breakdown field strength, resulting in excellent energy storage density and efficiency.

The invention provides a preparation method of a graphene aerogel composite electrode material for an energy storage capacitor. The preparation method comprises the following steps: preparing a graphene composite material; and putting the graphene composite material into a coaxial DBD reactor for treatment. Freeze-drying the wet gel, and reserving a pore structure to obtain the GA block material. GA is soaked in a manganous nitrate solution, and a metal oxide nanosheet grows in situ through a hydrothermal method. And cutting the GA block into sheets, directly pressing and attaching the sheets to a foamed nickel current collector, carrying out vacuum drying, and preparing an electrode plate by using a hydraulic machine. According to the method, rapid reduction, precise structure regulation and control and functional compounding of the graphene aerogel are realized, reduction of GO, three-dimensional crosslinking and in-situ loading of a functional material are synchronously completed under a vacuum condition by optimizing plasma energy input and a gas environment, pollution of a chemical reducing agent and energy consumption of high-temperature treatment are avoided, and the method is suitable for large-scale industrial production. And the porosity, the conductivity and the interface bonding strength of the GA can be accurately regulated and controlled.

The present invention discloses a method for preparing a solid electrolyte using sludge from a sand and gravel processing system. The main steps of the method are: drying and crushing the sludge from the sand and gravel processing system for pretreatment, adding silicate cement and a conductive material to the pretreated sludge, mixing them evenly, and calcining the mixture at a high temperature of 750-850°C for 1-2 hours under a nitrogen protection environment to obtain an electrolyte material; the conductive material is conductive charcoal powder or carbonized kitchen waste compost powder. The prepared electrolyte material can be further used to prepare a solid-state supercapacitor or a solid-state battery. This capacitor can be used as a wall tile, floor tile, or pavement tile, and can be combined with renewable energy to form an energy storage capacitor and a wireless charging device. The present invention not only realizes the resource utilization of solid waste from sand and gravel processing system sludge, but also realizes the multifunctional application of cement-based composite materials.

The invention provides an anti-ferroelectric-paraelectric laminated energy storage capacitor and a preparation method thereof. The preparation method at least comprises the following steps: S1, depositing a bottom electrode layer on a substrate; s2, depositing a first dielectric layer through a pulse laser deposition process, wherein the material of the first dielectric layer is a paradielectric material; s3, a second dielectric layer is deposited through the pulse laser deposition technology, the second dielectric layer at least sequentially comprises an anti-ferroelectric layer and a paraelectric layer, the anti-ferroelectric layer is made of an anti-ferroelectric material, and the paraelectric layer is made of a paraelectric material; s4, repeating the step S3 for multiple times; and S5, depositing a top electrode layer. According to the preparation method disclosed by the invention, the antiferroelectric-paraelectric laminated film is formed in a layering form, and a structure in which the antiferroelectric dielectric layer and the paraelectric dielectric layer are circularly and alternately deposited and molded is constructed, so that the direct interface flatness between the antiferroelectric layer and the paraelectric dielectric layer is solved, the performance of a non-polar / reversed-polarity interface region between the layers is improved, and defects are reduced; the energy storage density of the energy storage capacitor is increased, and the efficiency is improved.

The invention relates to a driving circuit and method with wide-range adjustment and high turn-on rate, and relates to the technical field of power semiconductor device driving. The circuit comprises an energy storage capacitor, first to fourth MOS transistors, first to third DC power supplies, a charging resistor and a first diode. Wherein the energy storage capacitor is connected to the third MOS tube through the charging resistor to form an adjustable charging loop with the second direct-current power supply; meanwhile, a low-impedance discharging path connected with the charging resistor in parallel is formed through the first diode and the second MOS tube; the first direct-current power supply provides steady-state grid voltage, and the third direct-current power supply and the fourth MOS tube form a turn-off loop. The invention has the following beneficial effects: the turn-on rate can be continuously set in a wide range by adjusting the voltage of the second direct-current power supply; and the low-impedance discharge path can provide extremely high transient driving current to realize high-speed turn-on.

To provide a signal generator that generates a plurality of low voltages and combines them in series to create a high voltage.SOLUTION: A handset for an electroporation device has an improved signal generator. The signal generator includes a primary winding and a plurality of secondary windings, where the secondary windings are coupled together in a series configuration. A storage capacitor and the fly-back diode are coupled to each of the secondary windings. The signal generator includes a signal amplifier and a power switch. The power switch is configured to supply a voltage from a power source across the primary winding.SELECTED DRAWING: Figure 2

The application discloses a circuit and method for improving transient load response of constant voltage power supply, which comprises a voltage regulator and a load balancing structure. The method comprises: when the external load current is in a stable state, the charging diode is in a reverse cut-off state; when the external load current is in an increasing state, the output load voltage of the voltage regulator is in a falling state, the charging diode is in a conducting state, and the energy storage capacitor performs voltage compensation processing on the voltage regulator; and when the external load current is in a decreasing state, the output load voltage of the voltage regulator is in a rising state, and the voltage regulator performs charging processing on the energy storage capacitor. The application can improve the transient load response of the constant voltage power supply, reduce the voltage fluctuation amplitude and accelerate the response speed. The application can be widely applied to the technical field of power supply circuits.

The invention relates to a capacitive energy store (108) for a piece of embedded equipment (100), comprising: a succession of storage capacitors (3, 4, 5, 6) that are connected in parallel and that each have a capacitance less than 25,000 μF; a buffer capacitor (2) of lower capacitance; a switch (20) for connecting / disconnecting the buffer capacitor to / from a power supply (102) of the equipment; switches (30, 40, 50, 60) for connecting / disconnecting each storage capacitor to / from the preceding capacitor; a sequencer (8), configured to measure the voltage across the terminals of the buffer capacitor and of the storage capacitors and, when the equipment is switched on, control the various switches according to an initial charging process comprising a succession of cycles of charging / discharging the buffer capacitor (2) into the succession of storage capacitors.

The utility model discloses an induction sanitary appliance hydroelectric generation device, which comprises a box body assembly, a power supply assembly, a power supply assembly, a power supply assembly, a power supply assembly, a power supply assembly and a power supply assembly, and is characterized in that the box body assembly comprises a front shell, a rear shell and a water delivery pipe, the front shell and the rear shell are mounted together to form a containing space; the hydroelectric generator assembly is arranged in the containing space and comprises an impeller, the impeller is arranged in the water conveying pipe, and when water flow of the water conveying pipe passes through the impeller, electricity is generated; the energy supply assembly is arranged in the containing space and comprises a standby battery and an energy storage capacitor, and the energy storage capacitor is electrically connected with the hydroelectric generator assembly; the electromagnetic valve is arranged in the accommodating space, the functional assembly is in power supply connection with the electromagnetic valve, and the electromagnetic valve is in power supply connection with the energy storage capacitor; and the photoelectric controller is electrically connected with the electromagnetic valve, and the energy supply assembly is in power supply connection with the photoelectric controller. The maintenance frequency can be reduced, and the production and installation cost can be reduced.

An energy harvesting generator that produces power to electrical loads, by a novel method of magnetomotive stored potential energy release of magnetic flux into a coil winding by a mechanically applied external force that separates two magnetic flux sources, which initially are proximity distance separated by a thin blind hole wall disposed on a coil bobbin wound with magnet coil wire. The static magnetic flux charge state is discharged into the coil by the action of the external mechanical applied force periodically and is recharged whenever the mechanical triggering is completed, and the two separate magnets are brought into proximity. This novel methodology is magnetically equivalent to an electrical storage capacitor that stores a plurality of electrostatic flux to be charged and discharged periodically on demand.

Disclosed is a shock wave generation method, comprising the following steps: a boost module (11) charging an energy storage capacitor (C1); when the voltage of the energy storage capacitor (C1) reaches a set value, the boost module (11) stopping charging the energy storage capacitor (C1), and the energy storage capacitor (C1) charging an energy relay capacitor (C2) and a shock wave electrode (31); and when the voltage across the shock wave electrode (31) reaches the breakdown voltage of the shock wave electrode (31), the energy relay capacitor (C2) stopping charging and discharging to the shock wave electrode (31), the energy storage capacitor (C1) continuing to discharge to the shock wave electrode (31), and the shock wave electrode (31) discharging, thereby causing breakdown and releasing a shock wave. Further provided is a shock wave system for implementing the shock wave generation method. By means of increasing the peak value and pulse width of a pulse current formed by a circuit where the shock wave electrode (31) is located when the shock wave electrode (31) releases the shock wave, that is, increasing the pulse energy of the pulse current, the shock wave energy released by the shock wave from the shock wave electrode (31) is effectively increased, and the dependence of the shock wave energy on the electrode structure is also avoided.

DC-DC converter with an output-side storage capacitor arrangement for providing an operating voltage for an inductive load and for at least one further electronic circuit and / or electronic component of a vehicle electronics, wherein the storage capacitor arrangement is connected to the DC-DC converter via a reverse-biased diode (6) and the output-side storage capacitor arrangement is connected to a parallel circuit consisting of an electrolytic capacitor (1), a ceramic capacitor (2) and a circuit arrangement is formed with a series connection of a hybrid electrolytic capacitor (3) and a suppressor diode (4) and a resistor (5) connected in parallel to the hybrid electrolytic capacitor (3), wherein the hybrid electrolytic capacitor (3) has a lower series resistance than the electrolytic capacitor (1) and a larger capacitance than the ceramic capacitor (2), so that in the event of energy being fed back from the inductive load into the storage capacitor arrangement, the hybrid electrolytic capacitor (3) absorbs a large proportion of the energy and thus prevents a voltage increase at an output terminal above a value at which connected components can be destroyed, wherein the output terminal is the cathode terminal of the diode (6) and the inductive load can be connected to the output terminal.

A system for reading a charge contained in a photodiode (10) of a pixel (2) is proposed. The pixel has a power input (2a), an output (2b), a readout node (SN), the readout system further includes means for biasing (8) the output (2b) of pixel (2), a first switch (7), an energy storage capacitor (6), and control means (9). The output (2b) of pixel (2) is connected to the biasing means (8) via the first switch (7), the power input (2a) is connected to the energy storage capacitor (6) and to one end of the second switch (5), the other end of the second switch (5) is intended to be connected to a DC voltage source (100), and control means (9). Figure for the abstract: Fig 1

The application discloses a kind of energy storage capacitor energy storage density test method and device, it is related to capacitor performance test field, comprising the following steps: step one, capacitor is placed;Step two, adjust simulation environment, set initial parameter by control system, including temperature and pressure, respectively in turn start pressure adjusting module and heating tube;Step three, monitor electric quantity change, close charging loop, and electric quantity monitoring module records the electric quantity change data in charging process, and the gas composition and pressure change in tank are monitored by sealing detection module;Step four, analysis and evaluation, the present application can test the two performances of energy storage capacitor under the simulation actual working environment simultaneously, solve the existing test separation problem, and capture the specific effect and real-time effect of sealing performance on energy storage performance under different working conditions, provide reliable data support for evaluating the actual performance and stability of energy storage system.

The utility model discloses a positioning temperature detection tool for metal spraying temperature detection of an end face of a high energy storage capacitor, which comprises a capacitor core group, a core group fixing frame, a heat sensor, a signal processor, a base, a connecting rod, a processor mounting box, a core group covering box and a sensor mounting plate, the capacitor core group is installed on the core group fixing frame and is arranged in the core group covering box, two opposite vertical side walls of the core group covering box are respectively provided with a covering box window, the two sensor mounting plates are respectively arranged in the two covering box windows, each sensor mounting plate is provided with a plurality of heat sensors, the core group covering box is arranged on the base, and the heat sensors are arranged on the base. A processor mounting box positioned above the core group covering box is connected with the base through a connecting rod; and a signal processor is arranged in the processor mounting box. The device has the function of independently positioning and installing the capacitor core group and the plurality of heat sensors, can detect the real-time temperature of a plurality of positions of the metal spraying end surface of the capacitor core group, and provides a more reliable basis for perfecting the metal spraying process.

A system for reading a charge contained in a photodiode (10) of a pixel (2) is proposed. The pixel has a power input (2a), an output (2b), and a readout node (SN). The readout system further includes means for biasing (8) the output (2b) of pixel (2), a first switch (7), an energy storage capacitor (6), and control means (9). The output (2b) of pixel (2) is connected to the biasing means (8) via the first switch (7). The power input (2a) is connected to the energy storage capacitor (6) and to one end of the second switch (5). The other end of the second switch (5) is intended to be connected to a DC voltage source (100). The system also includes control means (9). (See Figure 1 for abbreviations.)

Embodiments described herein relate to an implantable device that include an inductor coil, a storage capacitor, active circuitry, and a sensor, but doesn't include an electrochemical cell, and methods for use therewith. During first periods of time, the storage capacitor accumulates and stores energy received via the inductor coil from a non-implanted device. During second periods of time, interleaved with the first periods of time, and during which energy is not received from the non-implanted device, the active circuitry of the implantable device is powered by the energy stored on the storage capacitor and is used to perform at least one of a plurality of predetermined operations of the implantable device, including, e.g., obtaining a sensor measurement from the sensor of the implantable device, transmitting a communication signal including a sensor measurement to the non-implanted device, and / or receiving a communication signal from the non-implanted device.

Disclosed in the present application are a self-energy-taking hybrid direct-current circuit breaker and an application method therefor. In the self-energy-taking hybrid direct-current circuit breaker, a breaking branch is connected to a through-current branch in parallel, a first end of a grounding branch is connected to the breaking branch, and a second end of the grounding branch is grounded. When a direct-current system operates stably, the through-current branch conducts a steady-state running current of the direct-current system, and when the direct-current system breaks down, a self-energy-taking capacitor in the breaking branch assists a power electronic device in achieving the breaking of a fault current.

A power supply, a power supplying method, and a computer-readable storage medium are provided. The power supply includes a rectifier circuit and a valley-fill circuit. The rectifier circuit is used for voltage transformation of an input AC voltage to obtain a first pulsating DC voltage. The valley-fill circuit includes at least one energy storage capacitor and is used for storing energy through the at least one energy storage capacitor when the first pulsating DC voltage output by the rectifier circuit is in a first preset range and providing energy through the at least one energy storage capacitor when the first pulsating DC voltage output by the rectifier circuit is lower than a preset threshold, thereby to increase the valley voltage of the first pulsating DC voltage.

The connecting device comprises a fixing table, an electromagnetic pulse welding mechanism, a clamping and fixing mechanism and a lifting covering mechanism, an energy storage capacitor is fixedly arranged on one side of the fixing table, an upper electrode is fixedly arranged on the other side of the energy storage capacitor, and a lower electrode is fixedly arranged on the other side of the energy storage capacitor; a first electromagnetic pulse generator is fixedly arranged at the tail end of the upper electrode, a second electromagnetic pulse generator is fixedly arranged at the tail end of the lower electrode, a positioning seat is fixedly arranged in the middle of the fixing table, a lithium battery is placed on the positioning seat, a clamping and fixing mechanism is arranged in the middle of the fixing table, and a lifting covering mechanism is arranged on the other side of the fixing table; according to the invention, a lithium battery tab and a pole piece are sent to an electromagnetic pulse generation area for connection, the pole piece and the tab destroy original metal atom structures of two materials under the action of extremely high instantaneous pressure waves generated by a high-strength pulsed magnetic field, and two metal atoms are interpenetrated, so that a stable metallurgical structure is formed on the surface.

The present disclosure relates to a control device for a battery connection unit, the control device comprising an integrated circuit, IC, and a first reference impedance, wherein the IC comprises a trigger output for coupling to a pyro switch, wherein the IC is configured to generate at the trigger output a trigger signal for triggering the pyro switch, wherein the IC comprises a reference input for receiving a reference signal, wherein the first reference impedance is coupled to the reference input to generate the reference signal at the reference input depending on the first reference impedance, wherein the IC comprises a driver output for coupling to a reservoir capacitor, and wherein the IC is configured to generate a driver signal at the driver output for charging the reservoir capacitor according to the reference signal. The present disclosure also relates to a battery connection unit including the control device and to a method for the control device.

The utility model relates to the technical field of energy storage capacitors, in particular to a metal film high-efficiency energy storage capacitor, which comprises an insulating packaging shell, a packaging top cover, electrode lugs, a built-in heat dissipation explosion-proof assembly and a wrapped battery cell, a packaging top cover is clamped at the upper end part of the insulating packaging shell; the upper end part of the packaging top cover is fixedly connected with an electrode lug; a built-in heat dissipation explosion-proof assembly is arranged in the insulation packaging shell. A wrapped battery cell is arranged in the insulating packaging shell; the built-in heat dissipation explosion-proof assembly comprises a fixed installation ring, a fixed net pulling sleeve and a first heat conduction sleeve layer. According to the utility model, the second heat-conducting sleeve layer and the first heat-conducting sleeve layer are matched with the heat-conducting fins therebetween, so that the heat generated inside can be conducted outwards, the heat generated by the capacitor can be effectively dissipated in time, and if the heat cannot be dissipated in time due to excessive heat caused by continuous heating, gas can impact the rubber film above the exhaust hole, so that the service life of the capacitor is prolonged. And when the air pressure reaches a threshold value, a pre-cracking opening in the rubber film is broken, and the air is exhausted.

The embodiments described in this disclosure relate to a charging circuit, a charging method, and a system for an energy storage capacitor. The charging circuit comprises a current control module and a feedback control module. The feedback control module is used for: determining a current measurement result, wherein the current measurement result serves to indicate the magnitude of the current charging current output by the current control module to the energy storage capacitor; and outputting a control signal to the current control module based on the current measurement result, a current voltage of the energy storage capacitor, and an input voltage received by the current control module, wherein the control signal corresponds to a target charging current. The current control module is used for: outputting the target charging current based on the control signal and the input voltage.

A light source driver for a light source of a luminaire. The disclosure proposes monitoring a parameter responsive to a temperature change in a resistive element or a cause thereof, in order to determine whether the light source driver is compatible with an AC power supply. The resistive element is connected in series between a rectifying device of the light source driver and an energy storage capacitor for storing charge to power the light source.