68 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 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.

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.

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.

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.

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.

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.

This invention relates to the field of relaxor ferroelectric ceramic dielectric energy storage materials, specifically to a sodium bismuth titanate-based relaxor ferroelectric ceramic and its preparation method, wherein the chemical composition of the sodium bismuth titanate-based relaxor ferroelectric ceramic is (1-x)BNLT. ‑x BAN, of which BNLT is 0.9Bi 0.5 Na 0.5 TiO3-0.1Bi 0.5 Li 0.5 TiO3, BAN is BaAl 0.5 Nb 0.5 The value of O3 and x ranges from 0.06 to 0.18. When x = 0.15, the ceramic exhibits excellent performance with a recoverable energy storage density (Wrec) of not less than 14.0 J / cm³ and an energy storage efficiency (η) of not less than 84% under an electric field of 775 kV / cm. This invention employs a solid-state reaction sintering process, which is simple to prepare and low in cost, making it suitable for high-performance energy storage capacitors in pulsed power systems.

The invention discloses a pulse generator for electric spasm treatment and a control method thereof, and relates to the technical field of medical electronics. The pulse generator comprises a medical power supply, an energy storage capacitor bank, a full-bridge converter, a pulse transformer, an electrode port, a charging circuit, a current control circuit, a pulse width limiting circuit, a detection circuit and a microcontroller; the charging circuit adjusts energy storage voltage according to treatment voltage or patient impedance, and the energy storage capacitor bank adopts safe extra-low voltage energy storage; the current control circuit realizes constant current output through proportional integral control, the pulse width limiting circuit limits the maximum pulse width through hardware, and each key module has electrical isolation. The scheme solves the problems of difficult current control and large side effect of the existing equipment, improves the stability of the treatment current and the safety of the equipment, and is suitable for the electric spasm treatment of mental disorders such as depression.

The application relates to an alternating current (AC) contactor driver and relates to the technical field of AC contactor driving; the AC contactor driver comprises an AC-DC rectification unit, a signal processing unit and a DC-AC driving unit, an input end of the AC-DC rectification unit is electrically connected to an external AC control signal, output ends of the AC-DC rectification unit are respectively electrically connected to a power supply end of the signal processing unit and the DC-AC driving unit; an input end of the signal processing unit is electrically connected to an output end of the AC-DC rectification unit, and an output end of the signal processing unit is electrically connected to a control end of the DC-AC driving unit; an output end of the DC-AC driving unit is electrically connected to a control end of an AC contactor; an energy storage capacitor C1 is arranged in the AC-DC rectification unit, a positive pole of the energy storage capacitor C1 is electrically connected to an output end of the AC-DC rectification unit, and a negative pole of the energy storage capacitor C1 is grounded. The application has the effects of avoiding the failure of an AC contactor driving circuit as much as possible during voltage fluctuation and improving the anti-interference capability.

The invention relates to the field of analog integrated circuit design, and provides an improved common-mode stable FIA type amplifier, which comprises a differential FIA amplifier main body, a common-mode stable FIA amplifier main body, a common-mode stable FIA amplifier main body and a common-mode stable FIA amplifier main body, the output common-mode presetting unit is used for presetting the output common-mode voltage of the output end of the differential FIA amplifier into a potential corresponding to the input common-mode voltage in a reset stage; the gain stabilization unit is used for providing equivalent load regulation for the differential FIA amplifier in an amplification stage; and the sequential control unit is used for controlling the reservoir capacitor to perform charge storage in a reset stage to enable the output common-mode presetting unit to perform common-mode voltage presetting operation on the output end, and controlling the reservoir capacitor to release the stored charge to the differential FIA amplifier main body in an amplification stage to provide dynamic working electric energy. On the premise that the main body structure of a traditional FIA type amplifier is not changed, the problems that in the traditional FIA type amplifier, an output common mode is prone to being affected by parasitic capacitance, the inherent common mode rejection capacity is lowered, and open-loop gain drifts remarkably along with the PVT condition are solved.

Power supply unit of an X-ray arrangement comprising an X-ray tube (1), - wherein the power supply device has an input stage (3), an output stage (4) and an intermediate circuit (5), - wherein the intermediate circuit (5) has two lines (6, 7) which are each connected to the input stage (3) and the output stage (4), - wherein the two conductors (6, 7) of the intermediate circuit (5) have different potentials, the difference of which forms an intermediate circuit voltage (U), - wherein the input stage (3) is connected to an AC voltage network (9) so that the input stage (3) can draw electrical energy from the AC voltage network (9) and supply the drawn electrical energy to the intermediate circuit (5), - wherein the output stage (4) is connected to the X-ray tube (1), so that the output stage (4) can extract electrical energy from the intermediate circuit (5) and convert the extracted electrical energy into high voltage and supply it to the X-ray tube (1), - wherein the power supply device has an electrical storage arrangement (10) which has an electrical storage capacitor arrangement (11), characterized in that the electrical storage arrangement (10) has a storage-side converter circuit (12) proprietary to the storage capacitor arrangement (11), via which the electrical storage capacitor arrangement (11) is connected to the intermediate circuit (5).

A portable electroporation device having an improved signal generator; the signal generator includes a main winding and multiple secondary windings where the multiple secondary windings are coupled together in a series configuration; a storage capacitor and flyback diode are coupled to each of the multiple 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 through the main winding.

To provide a main unit that does not require extensive ancillary construction work, can reduce operating costs, and can be operated at low cost over the long term, as well as a disaster detection device equipped with this main unit. [Solution] The main unit 2 is a main unit 2 that supports a detection body 3 that is displaced when a predetermined amount of kinetic energy E is applied, and comprises a main unit housing 10 that holds the detection body 3 on the ground, a circuit board unit 20 disposed in the main unit housing 10 and on which a circuit board is mounted, a normally open type detection unit 25d mounted on the circuit board unit 20 that closes the electronic circuit of the circuit board when it detects the displacement of the detection body 3, and a storage capacitor provided on the circuit board unit 20 that supplies power to the alarm unit 30 when the detection unit 20 is activated, and the disaster detection device 1 comprises the main unit 2 and the detection body 3 that is supported on the ground by the main unit 2.

Disclosed is a display device that is capable of being driven with low power consumption. A first thin-film transistor including a polycrystalline semiconductor layer and a second thin-film transistor including an oxide semiconductor layer are disposed in an active area, thereby reducing power consumption. At least one opening formed in a bending area is formed to have the same depth as any one of contact holes formed in the active area, thereby making it possible to form the opening and the contact holes through the same process and consequently simplifying the process of manufacturing the device. A second source electrode of the second thin-film transistor and a second gate electrode of the second thin-film transistor overlap each other with an upper interlayer insulation film interposed therebetween so as to form a first storage capacitor.

A semiconductor device includes a lower structure; a vertical conductive line extending in a first direction which is perpendicular to a surface of the lower structure; a reservoir capacitor disposed over the lower structure to be spaced apart from the vertical conductive line; a bridge horizontal layer disposed between the vertical conductive line and the reservoir capacitor and extending horizontally in a second direction which is parallel to the surface of the lower structure; and a pair of horizontal layers extending in a third direction intersecting the bridge horizontal layer with the bridge horizontal layer interposed therebetween.

The utility model relates to a large-current inductance test system, which belongs to the technical field of high-voltage pulse power and comprises an energy storage capacitor unit electrically connected with an inductance protection unit and used for acquiring high-voltage electricity and enabling internal breakdown of a capacitor of the energy storage capacitor unit based on the high-voltage electricity so as to generate large current, and the inductance protection unit electrically connected with a thyristor switch and used for protecting the thyristor switch. The energy storage capacitor unit is used for absorbing energy released by the energy storage capacitor unit when the energy storage capacitor unit generates large current, the thyristor switch is electrically connected with the inductor to be tested, and the terminal is electrically connected with the thyristor switch. According to the utility model, the energy storage capacitor unit and the protection inductor unit are used to simulate a real environment when a large-current special inductor breaks down and has a short-circuit fault in a connected energy storage capacitor, and the performance of the inductor is tested and evaluated, so that the stability and reliability of the inductor under an extreme working condition are detected, and the danger degree of the fault is predicted; and the operation safety of energy equipment is ensured.

The application discloses a ternary inorganic-organic composite flexible energy storage capacitor doped with graphene oxide. A fabric is used as a sacrifice template, and a ceramic frame with a fabric structure is generated after high-temperature treatment. The ceramic frame is ground appropriately and then added into PVDF to prepare a thin film capacitor. By doping graphene oxide, the composite energy storage capacitor has high dielectric constant, high mechanical strength and low dielectric loss. The composite dielectric provided by the application has a simple preparation method, and the dielectric constant of the composite material is improved at a low filler content (10 wt.%), thereby providing a new idea for improving the dielectric performance of the composite material.

The invention relates to the technical field of ceramics, in particular to an anti-reduction two-phase ferroelectric energy storage ceramic as well as a preparation method and application thereof. The general structural formula of the ceramic is PbaLabZrcTidOe + xwt% Y2O3, wherein a is equal to 0.5 to 1.5, b is equal to 0.01 to 0.1, c is equal to 0.5 to 1.5, d is equal to 0.005 to 0.05, and e is equal to 1.6 to 4.7; 0 lt; xlt; 8. Y2O3 with a specific content is added, so that the stability of a ceramic antiferroelectric phase is improved, the dispersion relaxation of a ceramic material is promoted, the breakdown electric field of the antiferroelectric ceramic is improved, and the reduction resistance of the ceramic is also improved; by matching with a specific tape casting process, the energy storage density of the prepared ceramic is 10-12J / cm < 3 >, and the energy storage efficiency is greater than 80%; the material can be used for an energy storage capacitor and has a good application prospect in a pulse power system.