32 results about "Anode voltage" patented technology

The present application relates to methods and apparatus for optimizing fast battery charging. In the described example of a method and apparatus for fast charging a battery with optimized charging, a system (400) includes a battery charger (420) for applying a voltage to a rechargeable battery (430), and a controller (422) coupled to the battery charger (420) and monitoring at least one of a battery voltage, a battery temperature, and a current flowing into the battery (430). The system (400) is configured to apply a charging current from the battery charger (420) by calculating an open circuit cell anode voltage and anode resistance of the battery (430) and determining a charging current. In an additional arrangement, lithium ion plating is prevented by the charging current.

The application belongs to the technical field of integrated circuits, and discloses a temperature-compensated configurable passive equalization circuit, a chip and a battery pack. The application comprises a reference voltage control circuit, a reference voltage generation circuit and a passive equalization control circuit. The reference voltage control circuit outputs a reference voltage control signal related to a specific temperature coefficient. The reference voltage generation circuit generates a plurality of reference voltages with specific temperature coefficients according to the reference voltage control signal. The passive equalization control circuit compares the anode voltage of each single-lead-acid battery with the corresponding reference voltage with a specific temperature coefficient in real time. When the anode voltage of the single-lead-acid battery is greater than or equal to the corresponding reference voltage with a specific temperature coefficient, a discharge path is formed in parallel to the two ends of the single-lead-acid battery. The application can solve the problem of the service life of the battery pack restricted by the consistency of each battery in the battery pack, effectively reduce the complexity and cost of the equalization management scheme of the battery pack, and adapt to changes in the ambient temperature.

The invention provides an ignition starting method and system for an 80mN Hall electric propulsion system, and the method comprises the steps: firstly, powering on a power processing unit, and automatically carrying out the power path self-inspection; whether ignition is conducted or not is determined according to the self-inspection result, if the self-inspection result is normal, execution continues, buffer gas tank closed-loop pressure control is started, and at the moment, the control pressure is the initial pressure; starting a cathode gas path to supply gas, and heating the cathode; whether the starting mode is soft starting or hard starting is judged, if the starting mode is soft starting, cathode ignition is conducted and then anode ignition is conducted, if the starting mode is hard starting, cathode ignition and anode ignition are conducted at the same time, and low voltage is adopted for ignition during anode ignition in the two starting modes; judging whether ignition succeeds or not after anode ignition, if not, quitting the ignition process, and if yes, executing the next step; turning off a cathode heating power supply and a cathode ignition power supply; the anode voltage is gradually increased to a rated value, and the buffer gas tank pressure is gradually increased to a rated value; enabling an ignition fault monitoring program, and completing ignition starting.

The invention discloses a display module and a display control method. The display module comprises a display panel, a display driving chip and a voltage compensation circuit. Wherein the structure of the virtual light-emitting device is the same as that of the light-emitting device in the display panel, so that the virtual light-emitting device can accurately reflect the characteristics of the light-emitting device in the display panel. Therefore, after the current supply end provides the standard driving current for the anode of the virtual light-emitting device, the comparison sub-circuit can obtain the first target voltage based on the resistance value of the virtual light-emitting device corresponding to the current temperature of the display module and the standard driving current; the display driving chip performs compensation based on the first compensation signal determined by the first target voltage and the first reference voltage, so that dynamic compensation of the anode voltage of the light emitting device in the display panel can be realized, the brightness requirement in a relatively wide temperature range can be met, the actual use temperature range of the display module is improved, and the display efficiency is improved. And the compensation accuracy can be improved.

A light detection device (1) includes: a first avalanche photodiode (11A) that amplifies carriers generated by incident photons, the first avalanche photodiode being disposed in a first region (A1) of a first substrate (101) and having a first anode region (104A) to be supplied with a first anode voltage; and a second avalanche photodiode (11B) that amplifies carriers generated by incident photons, the second avalanche photodiode being disposed in a second region (A2) of the first substrate (101), which is different from the first region (A1), and having a second anode region (104B) to be supplied with a second anode voltage lower than the first anode voltage.

The invention relates to a method for predicting a failure of at least one component of an X-ray tube (11), in which at least one reference value of the X-ray tube (11) is stored in an evaluation device of a controller for the X-ray tube (11), wherein the X-ray tube (11) comprises a cathode (16) with a filament (18), and at least one filament current of the cathode (16), an anode current of an anode (14) of the X-ray tube (11), and / or an anode voltage are stored as a reference value, in which, during operation of the X-ray tube (11), actual values of at least the filament current, the anode current and / or the anode voltage are detected and fed to the evaluation device, in which at least one prediction for a filament failure and one prediction for a vacuum leakage at a housing (12) of the X-ray tube (11) is determined in the evaluation device at least on the basis of a comparison of the reference values and the values actually detected during operation of the X-ray tube (11) and, based thereon, at least one of the predictions for the failure of the filament (18) and the leakage of the housing (12) of the X-ray tube (11) is output.

The application relates to an electron gun cathode life prediction and stability optimization method and system, wherein the method comprises the following steps: continuously collecting basic parameters and emission parameters in the whole life cycle of an electron gun cathode, and calculating a heating power increment; based on the basic parameters, the emission parameters and the heating power increment, a health state index prediction value of the cathode is calculated, and a failure threshold is set; a residual life prediction model is constructed, the health state index prediction value is input into the residual life prediction model, the health state index curve trend is fitted, the time required for the cathode to reach the failure threshold from the current state is predicted, and the residual life is obtained; based on the health state index and the cathode working temperature, the cathode heating current and the cathode heating power are adjusted, and the cathode heating current and the anode voltage are adjusted according to the vacuum degree. The application can effectively delay the aging process of the cathode and prolong the effective service life of the cathode under the premise of ensuring the stable operation of the electron gun.

The invention relates to an electron gun cathode life prediction and stability optimization method and system, and the method comprises the steps: continuously collecting basic parameters and emission parameters in the whole life cycle of an electron gun cathode, and calculating the heating power increment; based on the basic parameters, the emission parameters and the heating power increment, a health state index prediction value of the cathode is calculated, and a failure threshold value is set; constructing a residual life prediction model, inputting the health state index prediction value into the residual life prediction model, and predicting the time required for the cathode to reach a failure threshold from the current state by fitting a health state index curve trend to obtain the residual life; and adjusting the cathode heating current and the cathode heating power based on the health state index and the cathode working temperature, and adjusting the cathode heating current and the anode voltage according to the vacuum degree. On the premise that the operation stability of the electron gun is guaranteed, the cathode aging process can be effectively delayed, and the effective service life of the electron gun is prolonged.

This invention discloses a membrane electrode testing method and apparatus. The method involves cycling the membrane electrode multiple times, with each cycle including an anolyte voltage cycle durability test and a reverse polarity resistance test, thereby achieving durability testing of the anolyte catalyst layer. The anolyte voltage cycle durability test primarily addresses the impact of vehicle start-stop processes on the membrane electrode; therefore, this method considers the anolyte catalyst degradation caused by start-stop cycles. The reverse polarity resistance test corresponds to hydrogen starvation conditions. In other words, this method and apparatus simultaneously consider both anolyte reverse polarity and anolyte catalyst degradation caused by start-stop cycles, enabling rapid testing of the membrane electrode's lifespan and durability based on the start-stop and reverse polarity processes occurring on the anode side, thus improving test accuracy.

The application discloses an S-band high-power pulsed magnetron and belongs to the field of vacuum electron devices. The device comprises an anode assembly, a cathode assembly, an input assembly, an output assembly and a permanent magnet. The application adopts an axial output structure, improves the sizes and proportions of the anode and the cathode, simultaneously increases the anode voltage, adopts the permanent magnet to provide a constant magnetic field, and can output a pulsed microwave power of more than 100kW on the basis of a small size.

An X-ray inspection apparatus is disclosed. The apparatus includes: an anode on which a target is disposed; the cathode is used for emitting an electron beam to a target; a gate electrode positioned between the cathode and the anode and facing the cathode side; a power supply unit for applying a voltage to each of the cathode, the gate, and the anode; and a control unit. The control unit controls the power supply unit such that a cathode voltage of a preset amplitude is applied to the cathode and an anode voltage of a preset amplitude is applied to the anode, and controls the power supply unit such that a gate voltage within a preset voltage range is selectively applied to the gate, thereby adjusting the amount of the electron beam.

Systems, methods, and devices for unloading an access device into a storage device are provided. An exemplary structure includes a storage device with a local read line, a bleeder device coupled to the local read line, and a bleeder supply. The storage device may also include a read-line multiplexer coupled to the local read line and a global read line, as well as a read amplifier coupled to the global read line. The read amplifier may be configured to read and statically store (latch) a voltage from the global read line in response to the storage device receiving a command.The storage device may further include a plurality of access devices coupled to the local read line, a plurality of capacitors coupled to the plurality of access devices, and an anode voltage supply separate from the bleeder supply and coupled to the plurality of capacitors.

The application provides a gyrotron fast voltage regulating method based on long pulse power forbidden zone prediction, belongs to the field of nuclear fusion plasma heating, and comprises the following steps: setting a target power, determining the adjustment range of the anode voltage of the gyrotron based on the target power; starting the gyrotron until the power of the gyrotron reaches a safe advance point, the safe advance point is located before the starting boundary of the power forbidden zone, and the anode voltage of the gyrotron is adjusted to the target voltage at one time according to the adjustment range; under the target voltage, the power of the gyrotron rapidly climbs to the target power after crossing the power forbidden zone and enters long pulse steady-state operation; and the system is also provided; the power forbidden zone and the safe advance point of long pulse operation are identified through statistical analysis, the anode voltage is adjusted at one time predictively when the starting process reaches the safe advance point, the power forbidden zone is quickly regulated after the voltage of the gyrotron is raised, and the gyrotron directly reaches the target power stable region, so that the long pulse starting success rate is significantly improved, the failure risk is reduced, and the starting time is shortened.

This X-ray generation apparatus comprises: an emitter device generating an electron beam, and having an upper surface, a lower surface and a side surface; an anode terminal which is formed on the upper surface of the emitter device, and which accelerates the electron beam by means of an anode voltage so as to generate X-rays; and an electron generator module including a cathode terminal formed on the lower surface of the emitter device. The electron generator module includes: an insulating film disposed on one side and the other side of the cathode terminal; protection terminals arranged on the upper end of the insulating film; a protection resistor having one end connected to the protection terminals; and a protection grid connected to the other end of the protection resistor.

The application relates to a low-power LIGBT device integrated with a self-bias PMOS, and belongs to the technical field of semiconductors. The device comprises a substrate, a buried oxygen layer, a drift region, a P-type buried layer, a common MOS region, a self-bias PMOS region and an anode region. The substrate, the buried oxygen layer and the drift region are sequentially arranged from bottom to top, and the P-type buried layer is arranged in the drift region and is completely wrapped by the drift region. The common MOS region is adjacent to the self-bias PMOS region, and the anode region is located at the upper right side of the device. The self-bias PMOS region can reduce the saturation current of the device when the anode voltage is increased, reduce the off-state loss of the device when the device is turned off, and improve the short-circuit working characteristics of the device when the device is in short-circuit working.

This application provides a display device and a display method. The display device includes a display panel and a driver chip. The display panel is divided into at least two display zones along the longitudinal direction. Each display zone corresponds to a preset anode voltage parameter. The driver chip is electrically connected to the display panel and outputs a matching target anode voltage to the anode of the light-emitting element according to the anode voltage parameter of each display zone. This invention improves display uniformity and image quality by independently configuring the anode voltage for each longitudinal zone, thereby simultaneously improving light leakage in black screens and uneven color and brightness in low-brightness grayscale.

An image sensing device includes: a plurality of single-photon avalanche diodes (SPADs); a voltage acquisition circuit configured to acquire a) a first candidate voltage including a first anode voltage and a first cathode voltage for the plurality of SPADs and b) a second candidate voltage including a second anode voltage and a second cathode voltage for the plurality of SPADs; a voltage determiner configured to determine one of the first candidate voltage and the second candidate voltage as a final voltage based on at least one of a reliability margin of the plurality of SPADs or a stability margin of the plurality of SPADs; and a voltage applying circuit configured to apply the final voltage to each of the plurality of SPADs.

The invention provides a voltage detection circuit of a series battery pack, the voltage detection circuit comprises a switch module and a voltage comparison module, and the voltage comparison module comprises a positive voltage node and a negative voltage node. The switch module is used for sequentially connecting the anodes of the plurality of batteries with the anode voltage node and connecting the cathodes of the plurality of batteries with the cathode voltage node. The voltage comparison module further comprises a comparator, a reference voltage reduction module and a voltage division circuit connected between the positive voltage node and the negative voltage node, the reference voltage reduction module comprises a first end and a second end, and the first end is connected to the positive voltage node. One of the in-phase end and the anti-phase end of the comparator is connected with the second end of the reference voltage reduction module, the other end of the comparator is connected with the voltage division circuit, and the comparator is used for comparing the voltage of the second end with the voltage divided by the voltage division circuit and outputting high and low level signals. By arranging the reference voltage reduction module and the voltage division circuit, the detection precision can be improved, and the processing difficulty of components in the voltage detection circuit is reduced.

The invention provides a gyrotron rapid voltage regulation method based on long pulse power forbidden zone prejudgment, and belongs to the field of nuclear fusion plasma heating, and the method comprises the steps: setting target power, and determining the adjustment amplitude of the gyrotron anode voltage based on the target power; starting the gyrotron until the power of the gyrotron reaches a safety advance point which is located before the starting boundary of the power forbidden zone, and adjusting the anode voltage of the gyrotron to the target voltage at one time according to the adjustment amplitude; under the target voltage, the power of the gyrotron rapidly passes through a power forbidden zone and then climbs to the target power, and enters long-pulse steady-state operation; the invention further provides a system. A power forbidden zone and a safety advance point of long pulse operation are identified through statistical analysis, and the anode voltage is pre-judged and adjusted at one time when the safety advance point is reached in the starting process, so that the gyrotron quickly adjusts the voltage of the power forbidden zone after boosting, and directly reaches a target power stable zone; therefore, the long-pulse starting success rate is obviously improved, the fault risk is reduced, and the starting time is shortened.

This application discloses an anode voltage drop testing device for an aluminum electrolytic cell, comprising an electromagnetic shielding box, a millivoltmeter, a positive test rod, and a negative test rod. The millivoltmeter is placed inside the electromagnetic shielding box. One end of the positive test rod is connected to the millivoltmeter via a wire, and the other end is connected to the anode steel claw. One end of the negative test rod is connected to the millivoltmeter via a wire, and the other end is connected to a reinforcing bar on the anode carbon block. The electromagnetic shielding box includes a box body and an observation window. The box body has an observation opening, and the observation window is located at the observation opening. The observation window includes a first glass layer and a metal mesh, with the metal mesh embedded within the first glass layer. The first glass layer includes glass and a conductive film, with the conductive film formed on the surface of the glass facing the outside of the box body. This voltage drop testing device places the millivoltmeter inside the electromagnetic shielding box, and the observation window is equipped with a first glass layer and a metal mesh embedded within it. A conductive film is also provided on the surface of the first glass layer, achieving full-band electromagnetic protection and avoiding inaccurate readings caused by magnetization.

The utility model provides a display device and a driving circuit thereof, and the driving circuit comprises a voltage detection circuit which is used for detecting an initialization signal of the display device in a current image display period, and the initialization signal is used for initializing a light-emitting device of a pixel circuit; the judgment circuit is connected with the voltage detection circuit and is used for responding to the initialization signal which drops from a first voltage to a second voltage and judging whether the first duration of the drop reaches a first preset duration or not; wherein the difference value between the second voltage and the first voltage exceeds a voltage threshold value; and the voltage control circuit is connected with the judgment circuit and the pixel circuit, and is used for adjusting the initialization signal in the next picture display period in response to the first duration reaching the first preset duration, so that the anode voltage of the light-emitting device is consistent. The poor phenomenon of low-gray-scale screen splitting of the display device can be improved, and the yield is increased.

The invention relates to the technical field of titanium alloy component machining, in particular to a nickel plating system, device and method for preparing a nickel plating layer on the inner wall of a component. The device comprises a first conductive structure, a second conductive fixing structure, an insulating structure, an insulating access structure and an electrode bar, a first through hole is formed in the first conductive structure; one end of the insulation access structure passes through the first through hole and then is arranged on the other side of the first conductive structure; a second through hole is formed in the insulating access structure, and one end of the second through hole is connected with an external plating solution circulating pump set; one end of the electrode bar is inserted into the second through hole, the electrode bar is provided with a through hole and a plurality of jet holes, and the insulation access structure is provided with an anode voltage loading port; the electrode bar is connected with the insulating structure; the insulating structure is provided with a leading-out hole, and the diameter of the leading-out hole is smaller than that of the through hole. The first conductive structure loads cathode voltage, and the second conductive fixing structure is connected with the first conductive structure and the component; the device can be used for plating nickel on the inner wall of a medium-small caliber inner deep hole component.

The invention relates to an RC-IGBT device with a collector depletion effect, and belongs to the technical field of semiconductors. In order to reduce the turn-off loss of a traditional RC-LIGBT device and eliminate the negative resistance effect during forward conduction, P polycrystalline silicon is introduced to the anode N + side of the device to serve as a planar gate, a P-Buried region is introduced below an anode N + region, a low-doped N-region is arranged between the planar gate and the P-Buried region, when forward conduction is conducted and the voltage is low, the P polycrystalline silicon gate and the P-Buried region exhaust the low-doped N-region, and the P polycrystalline silicon gate and the P-Buried region exhaust the low-doped N-region. Therefore, a high-resistance electron channel is formed, and the negative resistance effect is eliminated. Meanwhile, during turn-off, the anode voltage is high, the depletion region disappears, and a low-resistance electron channel is formed, so that turn-off is accelerated, and turn-off loss is reduced. According to the invention, the negative resistance effect of the traditional RC-IGBT is eliminated, the reverse conduction capability is realized, the compromise relationship between the conduction voltage drop and the turn-off loss of the LIGBT is optimized, and under the condition of the same conduction voltage drop, the turn-off loss of the device structure is respectively reduced by 52% and 19% compared with that of an SSA-LIGBT and that of the traditional LIGBT.

The invention provides a Hall thruster oscillation control method and system based on a neural network, and relates to the field of Hall thrusters, and the method comprises the steps: taking the initial power of the operation of a Hall thruster as a performance constraint condition in response to the operation of the Hall thruster, and collecting the discharge oscillation current waveform of the operation of the Hall thruster in real time; calculating based on the discharge oscillation current waveform to obtain an oscillation characteristic parameter corresponding to the discharge oscillation current waveform; according to the oscillation characteristic parameters, the current oscillation state of the Hall thruster is judged through an oscillation characteristic mapping neural network model, and a target operation condition for the Hall thruster is generated; and generating an oscillation regulation and control instruction according to the current oscillation state, the target operation condition and the performance constraint condition, and respectively controlling and regulating the anode voltage of an anode power supply of the Hall thruster, the magnetic field current of a magnet exciting coil power supply and the propellant flow of a flow regulation unit according to the oscillation regulation and control instruction, coordinated control of oscillation suppression and performance retention is performed.

This invention belongs to the field of power semiconductor technology and relates to SOI LIGBTs with integrated NMOS and multiple floating field plates. This invention introduces a double-layer floating field plate above the drift region of the SOI LIGBT, utilizing the floating metal field plate to achieve adaptive switching of the auxiliary NMOS integrated on the cathode side. During forward conduction, the lower anode voltage keeps the second NMOS in a high-resistance state, causing the node voltage across the parasitic diode to exceed its built-in potential and turn it on, providing an additional electron injection source for the drift region and reducing the on-state voltage drop. During turn-off, the high anode voltage increases the gate voltage of the second NMOS through capacitive coupling of the floating field plate, enabling it to conduct adaptively, providing a low-resistance path for excess holes in the drift region and reducing turn-off losses. In the saturation state, the second NMOS under the high anode voltage enters a strong inversion state, causing the parasitic diode to exit the forward bias state, cutting off the additional electron injection source, and strictly clamping the saturated anode current at a low level, improving the device's short-circuit withstand capability.

Systems and methods directed to a battery management system (BMS) for controlling charging of a battery are provided. Parameters corresponding to a state of the battery are received and provided to a trained machine learning model. The machine learning model generates a virtual reference electrode. A predicted anode voltage of the battery is determined using the virtual reference electrode. The system for charging the battery is controlled via the charging protocol using the predicted anode voltage of the battery.

The application discloses a method for preparing an aluminum-lithium alloy by a molten salt electrolysis method, wherein Li2CO3 is used as a lithium source, LiF and LiCl are used as electrolytes, liquid aluminum is used as an aluminum source and a cathode, and a metal ceramic is used as an anode; direct current electrolysis is carried out under the conditions that an anode current density is 0.4 A / cm2-0.8 A / cm2, an anode voltage is 3.5 V or less, and an electrolysis temperature is 680 DEG C-700 DEG C, and an aluminum-lithium alloy is obtained at the cathode; wherein an initial adding amount of the lithium source is 4%-8% of the mass of the electrolyte, and the lithium source is supplemented during the electrolysis process to keep the anode voltage to be 3.5 V or less. The method can avoid the generation of chlorine and reduce anode loss.

In a display device, each of an address-scan period and a self-scan period includes a data initialization period and an anode initialization period, and a voltage of an anode electrode is initialized in the data initialization period and the anode initialization period. That is, the voltage of the anode electrode may be initialized multiple times.

This invention belongs to the field of well logging control technology, specifically relating to a TNIS Plus control method for thermal neutron imaging saturation logging. Applied to a well logging system including a remote transmission sub, an acquisition sub, and a high-pressure control sub, the method initiates initialization and magnetic positioning calibration by issuing a start command, performs magnetic temperature normalization, and controls the neutron generator to emit thermal neutron beams according to a dynamic pulse timing sequence. The high-pressure control sub provides the anode voltage. Based on timestamps, a multi-detector timing acquisition window is triggered, and sliding integration, energy spectrum layering filtering, and abnormal pulse shielding are performed on the detection data to form structured measurement subframes, which are then encapsulated and uploaded. When a high air recovery rate is detected, compensation sampling logic is automatically triggered to extend the sampling window and adjust the voltage threshold, improving the signal-to-noise ratio and spectral quality. This method achieves high-precision acquisition and stable transmission of well logging data, providing a reliable data foundation for formation water saturation inversion.

The application provides a Hall thruster oscillation control method and system based on a neural network, and relates to the field of Hall thrusters. The method comprises the following steps: in response to the operation of a Hall thruster, taking the initial power of the Hall thruster operation as a performance constraint condition, and collecting the discharge oscillation current waveform of the Hall thruster operation in real time; based on the discharge oscillation current waveform, performing calculation to obtain oscillation characteristic parameters corresponding to the discharge oscillation current waveform; according to the oscillation characteristic parameters, judging the current oscillation state of the Hall thruster through an oscillation characteristic mapping neural network model and generating a target operating condition for the Hall thruster; according to the current oscillation state, the target operating condition and the performance constraint condition, generating an oscillation regulation instruction, and according to the oscillation regulation instruction, respectively controlling and adjusting the anode voltage of the anode power supply of the Hall thruster, the magnetic field current of the excitation coil power supply and the propellant flow of the flow regulation unit to perform coordinated control of oscillation suppression and performance maintenance.