12results about How to "Large output current" patented technology

The invention relates to a magnetism-force-electricity coupling energy collector and method based on an asymmetric torsional mode, and belongs to the technical field of energy collection. The asymmetric bending beam piezoelectric transducer comprises a piezoelectric plate, an asymmetric bending beam structure, a mass block and a fixing screw rod, the polarization direction of the piezoelectric plate is arranged along the thickness direction, electrode coatings are arranged on two side surfaces of the piezoelectric plate along the thickness direction, the electrode coatings on the two side surfaces are defined as a bonding electrode surface and a leading-out electrode surface respectively, the asymmetric bent beam structure comprises a main beam, a long limb and a short limb which are arranged in an integrated structure, and the main beam is arranged on the main beam. A fixing hole is formed in the middle of the main beam, the bonding electrode faces are bonded and fixed to the main beam through epoxy resin and distributed on the left side and the right side of the fixing hole, the leading-out electrode faces lead out electrical signals through wires, and the mass block is fixed to the asymmetric bent beam structure through magnetic force. One end of the fixing screw rod is connected with the fixing hole, and the fixing screw rod is installed on the rigid base.

The utility model discloses a battery protection plate and a battery assembly, and relates to the technical field of battery protection plate design. The battery protection board comprises a hard circuit board and a flexible circuit board, the hard circuit board is provided with a first bonding pad area and a second bonding pad area which are arranged at an interval, the flexible circuit board comprises a circuit board main body and a circuit branch which are connected, one of the circuit board main body and the circuit branch is provided with a current terminal, and the other of the circuit board main body and the circuit branch is provided with a second bonding pad area. And the other one is provided with a current terminal, the current terminal is electrically connected with the first bonding pad area, and the signal terminal is electrically connected with the second bonding pad area. According to the scheme, the problem that the difficulty of electric connection between the flexible circuit board and the hard circuit board is large due to the fact that a current battery protection board achieves large output current can be solved.

The invention discloses a high-linearity three-dimensional nanowire channel device and a preparation method thereof, the device comprises a substrate layer, a GaN buffer layer and an AlGaN slowly-changing barrier layer which are sequentially stacked from bottom to top, a source electrode and a drain electrode are respectively deposited at two ends of the AlGaN slowly-changing barrier layer, a Fin gate is deposited on one side close to the source electrode, a plurality of nanowire channels are arranged along the gate width direction, and the Fin gate surrounds the nanowire channels; the method comprises the steps that an epitaxial substrate is obtained, wherein the epitaxial substrate comprises a substrate layer, a GaN buffer layer and an AlGaN slowly-changing barrier layer; a source electrode and a drain electrode are prepared at the two ends of the AlGaN slowly-changing barrier layer respectively; siN temporary barrier layers are deposited on the surface of the device, and a plurality of strip-shaped SiN temporary barrier layers arranged at intervals are formed between the source electrode and the drain electrode; photoetching and developing the outline of a Fin gate, and etching the AlGaN slowly-changing barrier layer which is not covered by the SiN temporary barrier layer in a Fin gate region; all the SiN temporary barrier layers are removed, and a zigzag nanowire channel is reserved in the Fin gate region; depositing metal in the Fin gate region to form a Fin gate; the invention has the advantages of high linearity, high output current and better ohmic contact.

The invention discloses a safety gate circuit for a single cell battery, comprising a boost power module, a voltage reference module, a current sampling module and an on-off control module; the boost power module is respectively connected to the input end of the safety gate, the voltage reference module and the on-off control module, and the voltage reference module and the on-off control module in the safety gate are driven to work by a boost power chip; the voltage reference module is simultaneously connected to the boost power module and the on-off control module; the current sampling module is connected to the input end of the safety gate and the on-off control module via a milliohm-level precision resistor; the on-off control module is respectively connected to the input end of the safety gate, the boost power module, the voltage reference module, the current sampling module and the output end of the safety gate; the safety gate circuit has the characteristics of low input voltage, low on-resistance and large output current, is applied to the single cell battery for power supply, and at the same time requires intrinsically safe explosion-proof scenes, and can well exert the discharge performance of the single cell battery.

The invention discloses an inverter control method, system and device, a storage medium and computer equipment. The method is applied to an interleaved multi-level inverter with a plurality of phase voltage output circuits, and comprises the following steps: determining a voltage target vector of a voltage to be output by the interleaved multi-level inverter, and determining a voltage phase vector sequence corresponding to each phase voltage output circuit based on the voltage target vector; based on the level type of the vector level in the voltage phase vector sequence, determining whether various redundant level states exist in the output state of the phase voltage output circuit within the vector action time corresponding to the vector level; and when the phase voltage output circuit has multiple redundant level states within the vector action time, current output of each parallel bridge arm in the phase voltage output circuit is controlled, so that the output state of the phase voltage output circuit is a target state in the multiple redundant level states. According to the scheme, the efficiency of selecting the redundant level state of the interleaved multi-level inverter can be improved.

The utility model provides a voltage conversion circuit and a voltage conversion device. The voltage conversion circuit comprises a switching power supply chip, a feedback voltage regulation module, a plurality of current expansion modules connected in parallel, and an output module. The feedback voltage regulating module comprises a reference resistor and a feedback resistor, the reference resistor is connected between the reference voltage end and the feedback end, and the feedback resistor is connected between the feedback end and the first end of the output module; the switching power supply chip is used for outputting a pulse width modulation signal to the modulation signal end, and the duty ratio of the pulse width modulation signal is related to the voltage of the feedback end; the current expanding module comprises a first switch element and a first energy storage element; the first switch element is used for disconnecting the input end of the voltage conversion circuit from the first energy storage element when the pulse width modulation signal is in an invalid level; and the output module is used for discharging to the first energy storage element when the first switch element is switched off, so that the output end outputs negative voltage. The voltage conversion circuit provided by the utility model can improve the output current and meet the requirements of a plurality of vacuum gauges.

The utility model discloses a thrust control system suitable for different welding processes. The thrust control system comprises a voltage input circuit, a gain circuit, a gear switch, a voltage regulating circuit, a thrust output circuit and a thrust control circuit, the output end of the voltage input circuit is connected with the input end of the gain circuit, the output end of the gain circuit is connected with the input end of the voltage regulation circuit after being connected with the gear switch in parallel, and the output end of the voltage regulation circuit is respectively connected with the input end of the thrust control circuit and the input end of the thrust output circuit.

The application discloses a kind of multistage trench multi-channel integrated schottky diode's MISFET, comprising: gallium oxide substrate, drain, gallium oxide epitaxial layer, source;Gallium oxide epitaxial layer upper portion is equipped with including M≥2 level sub-trench multistage trench, the opening distance of first level sub-trench to M level sub-trench successively reduces;High resistance zone is equipped in gallium oxide epitaxial layer between multistage trench and the bottom of multistage trench, and N type low resistance zone is equipped on high resistance zone except the bottom of M level sub-trench;Schottky diode is integrated in M level sub-trench;Sub-trench bottom and sidewall except M level are deposited with gate dielectric layer, gate electrode is deposited on the surface of gate dielectric layer, and gate electrode and source are covered with interlayer dielectric layer.The application reduces the electric field at the surface of device, reduces the dependence of device on gate dielectric material thickness, while reducing the forward conduction resistance and third quadrant conduction resistance of device, improves the voltage resistance and reliability of gallium oxide MISFET device.

The present invention provides a DALI bus power supply, comprising a power supply input, a voltage stabilizing circuit, a constant current circuit connected to the positive electrode of the voltage stabilizing circuit, an output positive electrode, and an output negative electrode. The constant current circuit comprises a transistor Q1, a Darlington transistor Q2, a resistor R1, a resistor R2, a resistor R3, and a negative temperature coefficient thermistor RT1. The emitter of the Darlington transistor Q2 is connected to the positive electrode of the voltage stabilizing circuit via the resistor R1, and the base of the Darlington transistor Q2 is connected to the negative electrode of the voltage stabilizing circuit via the resistor R3. The collector of Darlington transistor Q2 is connected to the positive output electrode, the emitter of transistor Q1 is connected to the positive electrode of the voltage stabilizing circuit, the base of transistor Q1 is connected to the positive electrode of the voltage stabilizing circuit via resistor R1 after being connected in parallel with the emitter of Darlington transistor Q2 via resistor R2, the collector of transistor Q1 is connected to the negative electrode of the voltage stabilizing circuit via resistor R3 after being connected in parallel with the base of Darlington transistor Q2, and the negative temperature coefficient thermistor RT1 is connected between the emitter of transistor Q1 and the base of transistor Q1. The present invention is simple, low in cost and good in performance.

The embodiment of the utility model discloses a lighting device self-adaptive to ambient lighting. The lighting device comprises a base. The lifting supporting rod assembly is arranged on the base, and the length of the lifting supporting rod assembly in the height direction can be adjusted in a telescopic mode; the light-emitting assembly is installed at the upper end, away from the base, of the lifting supporting rod assembly; the controller is arranged on the light-emitting assembly and is electrically connected with the light-emitting assembly; the light sensation sensor and the scene perception sensor are respectively arranged on the light emitting assembly and are respectively and electrically connected with the controller. When the height of the used space is small, the controller outputs an instruction to the lifting support rod assembly to control the lifting support rod assembly to drive the light-emitting assembly to descend to a proper height, so that the illumination requirements of users with different heights and use environments with different heights are met, the illumination effect and the use experience are guaranteed, and the eyesight of users is prevented from being damaged.

The utility model discloses a kind of dual-path voice simultaneous transmission wireless transceiving systems, including transmitting part and receiving part, the transmitting part includes sequentially connected low-frequency amplification circuit, frequency synthesis oscillation circuit, resonant hybrid circuit and impedance matching transmitting circuit, the receiving part includes sequentially connected signal receiving circuit, frequency modulation circuit, mixing frequency discriminator circuit and power amplifier circuit, the impedance matching transmitting circuit is connected with the signal receiving circuit communication, the low-frequency amplification circuit receives dual-path voice input signal, the power amplifier circuit outputs dual-path voice signal;The utility model is characterized in that: the immediacy of communication is higher.

A liftable vertical frame comprises a controller, a power unit, a fixed frame and a movable frame, the controller is electrically connected with the power unit, and the movable frame is installed on the fixed frame in a liftable and movable mode and connected with the power unit in a driving mode. The remote controller is in wireless communication connection with the signal receiving module of the controller; the illumination module comprises an illumination lamp, a cantilever frame and a distance detection assembly, the cantilever frame is arranged at the upper end of the movable frame, the illumination lamp is horizontally and rotatably installed on the cantilever frame and comprises a first side face and a second side face, and the distance detection assembly is arranged at the end, close to the movable frame, of the cantilever frame; the distance between the first side face and the distance detection assembly is set as a first distance when the first side face right faces the distance detection assembly, the distance between the second side face and the distance detection assembly is set as a second distance when the second side face right faces the distance detection assembly, and the second distance is not equal to the first distance. The distance detection assembly is electrically connected with the controller, and the distance detection assembly is further used for detecting the distance between the illuminating lamp and the bearing face.