63results about How to "Large discharge current" patented technology

The invention discloses a carbon-plate negative-plate sealed lead acid battery which comprises positive plates and negative plates, wherein parts of the negative plates are carbon plates, and each of the carbon plates comprises a metal substrate, the mixture of porous carbon materials and graphite materials coated on the metal substrate, and composite materials of the mixture. The invention is based on the principle of super-capacitor interfacial electrochemistry double-electrode layers, adopts the carbon plates with the energy storage of electrochemistry double-electrode layers, and the electrochemistry double-electrode stored energy on the two-phase interface of electrolyte/electrode materials has the characteristics of the performance of super-capacity and the capacity energy storage of batteries. The carbon-plate negative-plate sealed lead acid battery has the advantages of high specific power, rapid large-current discharge, corresponding lower discharge depth of batteries, long process of large-grain lead sulfate crystal accumulation on the negative plates, and long service life of the battery.

This invention discloses a folded polar plate lead acid battery and its making method, among which the lead wire connecting two plates is folded into u-shape and monopolar and bipolar plates are arranged in the box in sequence according to the matched polarities, a V-shaped diaphragm wraps both sides of each plate, insulation bag sleeve two adjacent polar plates and the diaphragm warapping the polar plates, realizing internal serials connection by lead wires. The lead acid battery has the advantages of small volume, light weight and good power characteristic.

The invention belongs to the field of pulse power generators and discloses a permanent-magnet axial-flux semi-hollow pulse power generator comprising a rotor, a stator, a rotating shaft, a housing, and an end cap. The rotor comprises inner and outer magnetic poles, a permanent magnet and a compensation plate. The permanent magnet is arranged between the inner and outer magnetic poles of the rotor. The inner and outer magnetic poles cooperate with the permanent magnet to convert radial flux into axial flux. The compensation plate covers the tops of the inner and outer magnetic poles. The rotor rotates together with the rotating shaft. The stator is formed by pouring non-magnetic material on a winding and is fixed on the housing. The magnetic conductive material of the rotor and the non-magnetic conductive material of the stator form a semi-hollow structure. The semi-hollow pulse power generator simplifies a motor excitation system, reduces excitation loss, and increases motor efficiency. Brushless structure increases the reliability of the motor.

The invention discloses a miniature ionizing gas analyzer, a miniature gas ionizing device and a manufacturing method thereof, which bring convenience to the field detection of a gas. The miniature gas ionizing device provided by the invention comprises a cathode, an anode, and a gas flowing-in/out channel formed between the cathode and the anode, wherein a micro-tip array is formed on or electrically connected to the anode. The miniature ionizing gas analyzer provided by the invention consists of the miniature gas ionizing device, a galvanometer and an adjustable DC voltage source, wherein the miniature gas ionizing device comprises the cathode, the anode, and the gas flowing-in/out channel formed between the cathode and the anode; the micro-tip array is also formed on or electrically connected to the anode; the anode and the cathode of the miniature gas ionizing device are connected with a positive electrode and a negative electrode of the adjustable DC voltage source; and the galvanometer is connected in series between the miniature gas ionizing device and the adjustable DC voltage source.

The invention provides a computer power supply control method and device. The method comprises the following steps of: acquiring power supply information of a computer in a normal working state, wherein the power supply information comprises battery power supply and external power supply; Obtaining a discharge current or a battery temperature of the battery power supply when the power supply information is supplied to the battery power supply, and controlling the central control unit to operate at a first working frequency or a second working frequency according to the discharge current or thebattery temperature; When the power supply information is supplied to an external power supply, controlling the central control unit to operate at a first operating frequency. The invention can adjust the working frequency of the central control unit according to the discharge current of the battery power supply or the battery temperature, so that the computer system can be operated stably for along time under special circumstances, and the important data loss or damage caused by the sudden power failure of the computer system can be avoided.

The invention relates to a composite electronic component and a preparation method thereof. According to the composite electronic component, a capacitor and a resistor are integrated into a single component; a surface electrode is arranged on the side surface of a ceramic body; one end of the surface electrode is electrically connected with a first resistor layer; the other end of the surface electrode is electrically connected with a second terminal electrode; and one resistor connected with the capacitor in parallel is formed through the surface electrode between a first terminal electrode and the second terminal electrode to play a role in protecting the capacitor. The composite electronic component is wide in application range and relatively small in size; and the space can be saved for an overall circuit.

The invention discloses a flameproof lithium battery starting power source for coal mine. The flameproof lithium battery starting power source comprises a power supply circuit, a power management circuit, a control room circuit, a charge-discharge protection circuit, a charging circuit and a starting circuit. A lithium battery management unit is arranged in the power management circuit; an intermediate relay and a direct-current contactor are arranged in the charge-discharge protection circuit; the lithium battery management unit is capable of realizing detection and warning on the voltage, the temperature and the current of an individual battery; when the charging of a lithium battery pack is finished, the lithium battery management unit automatically controls the intermediate relay to switch off, and consequently, direct-current contact is stopped and the charging of the lithium battery pack is ended; in case of abnormal use of the lithium battery pack, the lithium battery management unit controls the intermediate relay to switch off, and consequently, the direct-current contact is stopped and the charging and discharging of the lithium battery pack are ended, and therefore, the lithium battery pack can be protected. In addition, the lithium battery management unit can be powered by a charger by use of a first diode and a second diode when the lithium battery pack is completely drained.

The invention discloses a dual-power driven flexible assembled transport trailer, belongs to the technical field of road transport machinery and relates to a dual-power driven traction super-huge type truck with a plurality of freely grouped carriages for transportation. The trailer comprises a main vehicle and carriages, and is characterized in that: a fuel driving device and a power driving device are arranged on the main vehicle; the fuel driving device and/or the power driving device are arranged in the carriages; a solar-cell panel, a wind driven generator, a super capacitor, a storage battery and a motor are arranged inside the power driving device; the solar-cell panel and the wind driven generator are connected with the super capacitor respectively; the super capacitor is connected with the storage battery; the storage battery is connected with the motor; and the main vehicle and the carriages and adjacent carriages are in overlapped connection through a flexible hinge device. By adopting dual-power driving, the trailer combines the advantages of two kinds of energy, namely fuel and power. By connecting the main vehicle with the carriages by the flexible hinge device, the trailer is applied to reliable connection and locking between two carriages, and can meet requirements on vehicle running smoothness index and steering stability.

The invention discloses a power supply and control circuit applied to a CubeSat brake sail. The power supply and control circuit comprises a power supply circuit and a control circuit, wherein the front end of the power supply circuit is connected with a solar cell array specially provided by a CubeSat for the brake sail, wherein the solar cell array is converted into a busbar voltage after passing through a super capacitor charging circuit, and meanwhile a super capacitor module is charged; the busbar voltage is converted into 3.3 V voltage after passing through a 3.3 V converter, so that power is supplied to chips in a wire burning circuit and the control circuit, wherein the wire burning circuit burns out a Dyneema wire fixing a fixing device with a busbar and releases the brake sail under the control of the control circuit, and meanwhile provides feedback of an unfolding state of the brake sail for the control circuit; and the control circuit communicates with an on-satellite computer through a 422 bus and reports the status of the brake sail to a ground station. The power supply and control circuit can work independently from a satellite platform, and even if a satellite fails, the brake sail can be unfolded at a preset unfolding time, so that the satellite off-orbit process is accelerated.

A kind of mobile telephone testing device includes a mainframe, a data collector connected with said mainframe, and a power source. Said data collector at least includes a voltage testing channel; said power source provides operating power for at least one mobile telephones, a resistance is connected between said power source and said mobile telephone, said voltage testing channel of data collector is connected with two ends of the corresponding resistance. Said mobile telephone testing device can test bigger charging or discharging current.

The invention discloses a high-energy electronic igniter circuit. The high-energy electronic igniter circuit comprises a boosting transformer, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a switch S1, a switch S2, a discharge tube and a rectifying circuit, wherein the switch S1 is connected in series with a primary coil of the boosting transformer; the capacitor C1 is connected in series with a secondary coil of the boosting transformer; the input end of the rectifying circuit is connected with the secondary coil of the boosting transformer; the output end of the rectifying circuit is connected with one end of the resistor R1 and one end of the capacitor C2 respectively; the other end of the resistor R1 is connected with the other end of the capacitor C2; the resistor R2 is connected in parallel with the capacitor C2; the switch S2 is connected in series with the resistor R3, and is then connected in parallel with the capacitor C2; the resistor R4 is connected in parallel with the capacitor C2; a voltage output end is connected with a spark plug. The high-energy electronic igniter circuit has the beneficial effects that the transformer can work for a long time through capacitive current limiting, is prevented from being burnt out easily, is safe to overhaul, and is low in cost; the internal resistance consumption is low.

An active species emission unit comprises: a case unit having either a cylindrical or box shape, further comprising an aperture unit on one end thereof; a discharge electrode, a leading end whereof is inserted via the aperture unit into the case unit; and a semiconductor electric unit which is positioned vertically facing the discharge electrode in the vicinity of the leading end thereof. A power source connection unit which serves as a ground potential is positioned on the exterior periphery of the semiconductor electric unit. Voltage is applied from a power source unit to the power source connection unit and the discharge electrode and an active species emitted by a corona discharge.

The invention relates to a monitoring three-in-one lightning protector. The monitoring three-in-one lightning protector comprises a bottom case, an upper cover, a circuit board, a MCU, a power module, a lightning protector body and a video processing module. A video input line, a control input line and a power input line are installed on the side wall of the front end of the bottom case and connected with the video processing module, the MCU and the power module respectively. The lightning protector body, the video processing module and the power module are connected with the MCU. A video output line, a control output line and a power output line are installed on the side wall of the rear end of the bottom case and connected with the MCU, and the output end of the video output line, the output end of the control output line and the output end of the power output line are connected with a camera. The monitoring three-in-one lightning protector is reasonable in design structure, compact in structure and easy and convenient to install and maintain, and is safer and more reliable to use with lightning protection of a power supply, lightning protection of a video signal circuit and lightning protection of a control signal circuit combined together.

The invention discloses a crash-proof logic circuit and a notebook computer. The crash-proof logic circuit comprises a charge chip, a first power supply module, a CPU (Central Processing Unit), a first resistor, a second resistor, a capacitor and a driving module, wherein a first end of the capacitor is connected with a first end of the first resistor and a signal output end of the charge chip respectively; a second end of the capacitor is connected with a first end of the second resistor and a signal input end of the driving module respectively; a signal output end of the driving module is connected with the input end of the CPU; the first power supply module is connected with a second end of the first resistor and a second end of the second resistor respectively; the charge chip is used for outputting indication signals when power is supplied power current is suddenly reduced; the capacitor is used for receiving the indication signals; the signal output end of the driving module is controlled according to the second resistor and the capacitor to output low-level signals firstly, then the frequency of the CPU is reduced, and high-level signals are further output. By adopting the crash-proof logic circuit, the notebook computer can be prevented from power off in high-speed operation or crash down if an adaptor is plugged out, and the service life of a battery is prolonged.

The invention discloses a dedusting tower for waste gas treatment. The dedusting tower comprises discharging electrodes. The discharging electrodes are electrode titanium alloy bars with the diameters being 12 mm-18 mm. A plurality of groove type titanium alloy wires with the diameters being 2 mm-4 mm are welded to the side wall of each electrode titanium alloy bar. The diameter of each electrode titanium alloy bar is 15 mm. The diameter of each groove type titanium alloy wire is 3 mm. According to the dedusting tower for waste gas treatment, the electrode titanium alloy bars with the diameters being 15 mm are made into the discharging electrodes, a high-voltage static electric field is generated for dedusting, and the service life of the discharging electrodes is prolonged; meanwhile, due to the fact that the electrode titanium alloy bars are used for a long time, the number of substances adsorbing to the surfaces of the electrode titanium alloy bars is increased, and the effect of the high-voltage static electric field is affected; by welding the groove type titanium alloy wires with the diameter being 3 mm to the four sides of each electrode titanium alloy bar, the intensity of the high-voltage static electric field is improved; point discharging instead of electrode bar full-length discharging is adopted by the groove type titanium alloy wires welded to the four sides of each titanium alloy bars, it is indicated through tests that under the same working voltage, point type electric field current is higher than bar type discharging current, and the effect of the electric dedusting tower is improved.

The invention discloses a high-power direct current IP measuring system with direct feed. The high-power direct current IP measuring system comprises a power supply, a transmitter and a receiver matched with the transmitter. The power supply is connected with the power source end of the transmitter, the power supply is a high-voltage and high-power power source based on a battery, and the transmitter is an intermittent transmitting transmitter. The power supply is formed by connecting a plurality of battery modules in series, wherein fault units of the battery modules can be automatically cut out of the series sequence. The power supply comprises a direct current high-voltage power supply circuit which comprises a low-voltage battery and an isolation DC-DC boosting module, and the low-voltage battery is connected with the power source end of the transmitter through the isolation DC-DC boosting module. The transmitter is provided with a controlled electronic switch K with the load switching function. The power supplying current is large, the transmitting power of the transmitter is high, and the measuring effect is good. The power supplying fault tolerance is good, and reliability is high. The power supplying efficiency is high, energy sources are saved, carrying is convenient, oil does not need to be burned, running cost is low, and the high-power direct current IP measuring system is environmentally friendly.

The invention relates to a lightning protection PDU power socket. The socket comprises a socket body provided with a power supply access end in an epitaxial manner, a control switch, a socket unit module, a lightning protection module and an overload protection module, the power supply access end is electrically connected to the lightning protection module, and the lightning protection module is electrically connected to the overload protection module; the overload protection module is electrically connected to the control switch, and the control switch is electrically connected to the socketunit module. The power supply lightning protection socket is simple in structure, is safe and reliable, is large in discharge current, short in response time and good in lightning protection effect, is provided with a failure indication lamp, can display the assembly degradation faults and has the dual functions of lightning protection and overload protection, and a circuit can be automatically disconnected when a socket circuit is overloaded or struck by the lightning, thereby protecting the power utilization safety of an electric appliance.