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1728results about How to "Improve discharge efficiency" patented technology

Drive control system for a fiber-based plasma display

A full color fiber plasma display device includes two glass plates sandwiched around a top fiber array and a bottom fiber array. The top and bottom fiber arrays are substantially orthogonal and define a structure of the display, with the top fiber array disposed on a side facing towards a viewer. The top fiber array includes identical top fibers, each top fiber including two sustain electrodes located near a surface of the top fiber on a side facing away from the viewer. A thin dielectric layer separates the sustain electrodes from the plasma channel formed by a bottom fiber array. The bottom fiber array includes three alternating bottom fibers, each bottom fiber including a pair of barrier ribs that define the plasma channel, an address electrode located near a surface of the plasma channel, and a phosphor layer coating on the surface of the plasma channel, wherein a luminescent color of the phosphor coating in each of the three alternating bottom fibers represents a subpixel color of the plasma display. Each subpixel is formed by a crossing of one top fiber and one corresponding bottom fiber. The plasma display is hermetically sealed with a glass frit. The sustain and address electrodes are brought out through the glass frit for direct connection to a drive control system.
Owner:MOORE CHAD BYRON

Electrical energy storage device

Provided is an electrical energy storage device including an electrode winding body, which includes a positive electrode generating electrons by oxidation and reduction, a negative electrode for absorbing the generated electrons, and separation layers for physically separating the negative electrode from the positive electrode, which are sequentially wound around a winding core, and an electrolyte provided between the positive electrode and the negative electrode, the electrical energy storage device including: a terminal plate for externally connecting the electrode winding body to an external electrode connecting member such as an external resistor; a cylindrical can for accommodating the electrode winding body connected to the terminal plate; and a conductive interconnecting member for connection between the terminal plate and polarity-leads on one side of the electrode winding body by a method selected from the group consisting of plasma-spraying, welding, soldering and adhesion using a conductive adhesive material. According to the present invention, in which an interconnecting member for reducing a difference in thickness between objects to be welded is employed, it is possible to prevent welding failure between the polarity-leads of the electrode winding body and the terminal plate, thereby improving high-rate discharge (large current discharge) efficiency.
Owner:MAXWELL TECH KOREA CO LTD

Ion thruster discharge chamber magnetic pole structure and design method thereof

The invention discloses an ion thruster discharge chamber magnetic pole structure which comprises a lower magnetic pole (1), a middle magnetic pole (2), an upper magnetic pole (3), a lower pole shoe (4), a middle pole shoe (5) and an upper pole shoe (6). The lower pole shoe (4), the middle pole shoe (5) and the upper pole shoe (6) are correspondingly connected with the lower magnetic pole (1), the middle magnetic pole (2) and the upper magnetic pole (3). The structure further comprises permanent magnets (9 and 10). A magnetic force line loop is formed among the magnetic poles through the pole shoes (4, 5 and 6) and the permanent magnets (9 and 10). A loop tip cusped magnetic field is formed in a discharge chamber. The structure is characterized in that positive pole cylinders (7 and 8) of the discharge chamber are arranged in the cusped magnetic field, all the magnetic poles extend to the inner surfaces of the positive pole cylinders (7 and 8) and are charged with negative electricity relative to the positive pole cylinders (7 and 8), and a discharge chamber negative pole (11) installed on the lower pole shoe (4) directly extends into the discharge chamber under the circumstance without the positive pole cylinders ahead. The invention further discloses a design method for the ion thruster discharge chamber magnetic pole structure. When the structure is used, the primary electron utilization rate can be increased, and the discharging efficiency and the beam uniformity are improved.
Owner:LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH

Charging control method and system for power battery of electric automobile

The invention discloses a charging control method and system for a power battery of an electric automobile. The method includes the steps that after the power battery enters a charging mode, the power battery is controlled to be charged through a normal-temperature charging process according to the current highest temperature and the current lowest temperature of multiple regions in the power battery; after the power battery is fully charged, heating is started when the current lowest temperature and the current highest temperature are both low, and therefore the power battery is controlled to enter a heating and heat preservation process; and when heat preservation time does not reach a heat preservation time threshold value, and the current lowest temperature is not higher than a temperature threshold value in the heating and heat preservation process, the power battery is controlled to be subjected to heat preservation continuously, the power battery retracts from the heating and heat preservation process, after the power battery stands still for preset time, a heat preservation time judgment step is executed again, and therefore the next-time discharging temperature of the power battery is guaranteed. By the adoption of the method of the embodiment, the power battery can be effectively charged at the low temperature, the discharging efficiency of the power battery in the low-temperature stand-still process of the power battery can be improved, the problem that the running mileage of the electric automobile is short is solved, and the user experience is improved.
Owner:BEIJING ELECTRIC VEHICLE

Voltage triggering static discharge clamping circuit with feedback strengthening effect

The invention discloses a voltage triggering static discharge clamping circuit with a feedback strengthening effect. The static discharge clamping circuit mainly solves the problem of low discharge efficiency of a clamping device in the existing voltage triggering static discharge clamping circuit. The circuit comprises a triggering circuit, a feedback circuit and a clamping device. After the triggering circuit detects the static discharge, the bias voltage Vb is input into the feedback circuit, the feedback circuit inputs the feedback voltage Vf to the triggering circuit for realizing the short circuit effect on two diodes in the triggering circuit so that the current flowing in the triggering circuit is increased, the source grid voltage of a transistor in the feedback circuit is increased, the grid electrode driving voltage Vg of the clamping device is raised to high voltage, the clamping device is sufficiently turned on, and the static discharge charges are efficiently discharged. The voltage triggering static discharge clamping circuit has the advantages that the discharge efficiency of the clamping device in the voltage triggering static discharge clamping circuit is improved, and the voltage triggering static discharge clamping circuit can be used for the design of integrated circuits.
Owner:XIDIAN UNIV

Shifting register unit, driving method of shifting register unit, shifting register circuit and display device

The invention provides a shifting register unit, a driving method of the shifting register unit, a shifting register circuit and a display device. The shifting register unit comprises a charging module, a pull-up module, a first pull-down control module, a second pull-down control module, a first pull-down module, a second pull-down module and a reset module. One end of the charging module is connected with an input end, the other end of the charging module is connected with a pull-up node, and the charging module is used for generating a pull-up signal; one end of the pull-up module is connected with the pull-up node, the other end of the pull-up module is connected with a first clock signal end, and the pull-up module is used for charging an output end; one end of the first pull-down control module is connected with a second clock signal end, the other end of the first pull-down control module is connected with a low-voltage end, and the first pull-down control module is used for generating a pull-down control signal; one end of the second pull-down control module is connected with a pull-down control node, the other end of the second pull-down control module is connected with the pull-up node, and the second pull-down control module is used for generating a pull-down signal; one end of the first pull-down module is connected with a first reset end, the other end of the first pull-down module is connected with the output end, and the first pull-down module is used for discharging the output end; one end of the second pull-down module is connected with a pull-down node, the other end of the second pull-down module is connected with the output end, and the second pull-down module is used for discharging the output end; one end of the reset module is connected with a second reset end, the other end of the reset module is connected with the pull-up node, and the reset module is used for resetting the pull-up node.
Owner:HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1

Semi-sealed discharging device for batched recovery of waste and used lithium ion batteries

A semi-sealed discharging device for batched recovery of waste and used lithium ion batteries includes: a semi-sealed discharging container filled with a discharging solution, a battery feeding apparatus, a discharge transmission apparatus, a tail gas treatment apparatus, and a battery recovery groove. The lithium ion batteries are fed into a battery storage bin, and then enter the discharging container through a star-shaped material adding device. The batteries then fall into the discharging solution, of which the molar ratio of ferrous sulfate to manganese sulfate is 2:1, to start discharge; after discharging for 14 h, the batteries are floated to the liquid level of the solution along with a conveyor belt and enter a drainage zone; in the draining zone, the solution on the surfaces of the batteries flows away from the holes in the conveyor belt, air generated from an air collecting cover accelerating the draining process; the drained batteries then move to the end of the conveyor belt and fall into the battery recovery groove, wherein the air in the container flows into and is collected in the air collecting cover through an air inlet, so that potential volatile gas are adsorbed through an adsorption chamber and the air is discharged by means of a centrifugal fan. The device is easy to use, is safe and high-effective, is low in cost and is green and environment-friendly.
Owner:SHANGHAI JIAO TONG UNIV

Dual-channel electrostatic discharge protecting circuit based on RC-triggering

A dual-channel electrostatic discharge protecting circuit based on RC-triggering is composed of a delay generation unit, a substrate trigger unit, a low-voltage grid trigger unit and an electrostaticdischarger. When positive electrostatic discharge occurs on a power supply, the delay generation unit in the protecting circuit can generate a delay pulse to respectively drive the substrate trigger unit and the low-voltage grid trigger unit, and the combined action of the substrate trigger unit and the low-voltage grid trigger unit reduces the threshold voltage of the electrostatic discharger, improves the opening speed of the electrostatic discharger and enhances the positive discharge performance of the electrostatic discharger; when negative electrostatic discharge occurs on a power line,a parasitic inverse diode between a source electrode in short circuit with the electrostatic discharger and a substrate and a drain electrode is mainly used for electric discharge to realize better negative static voltage protection; and the design circuit in the invention keeps closed in the case of normal power-on of the power supply and normal operation of a chip.
Owner:BEIJING MXTRONICS CORP +1
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