18 results about "Distributed circuit" patented technology

The utility model discloses a kind of distributed circuit breaker three-phase inconsistent protection devices, belong to electric power system relay protection technical field, including A-phase trip closing module, B-phase trip closing module, C-phase trip closing module, A-phase angle sensor, B-phase angle sensor and C-phase angle sensor;A-phase trip closing module, B-phase trip closing module and C-phase trip closing module are respectively installed in the A-phase, B-phase and C-phase mechanism box of circuit breaker.This utility model is installed in the trip closing module of circuit breaker each phase mechanism box by distribution, respectively collect the auxiliary contact point signal and angle sensor signal of this phase, and redundant fiber network is realized three-phase state information sharing by means of;When any module judges three-phase position inconsistency based on double criterion, directly export trip after setting delay, realize the protection action of fast and reliable.

The application discloses a radio frequency communication circuit layout design method and system, and relates to integrated circuits: a design constraint parameter library is constructed; a circuit topology structure is analyzed, circuit node types are identified, and node attribute information is extracted; a corresponding relationship between nodes and grid cells is established through a space mapping function, and a grid attribute matrix reflecting current distribution characteristics is generated; electromagnetic interference intensity received by each grid cell is calculated, grid cells with electromagnetic interference intensity exceeding a preset threshold are marked as areas needing isolation, and an area marking matrix is generated; a parameterized distributed circuit model is constructed for a wiring allowed area, process parameters in the design constraint parameter library are used to establish a mapping relationship of the distributed circuit model; a frequency domain node voltage equation set is constructed and solved, and voltage distribution data of each grid cell is obtained; and a multi-objective evaluation function is constructed according to the voltage distribution data; and the application balances power supply network performance and parasitic effects.

The invention discloses an intelligent bionic giant robot cruise performance track control system and method, and belongs to the crossing field of robot control and performance art technologies. Comprising a cloud planning layer for global planning, a ground central control layer responsible for field command and wireless Mesh networking, a robot vehicle-mounted layer serving as a robot local brain and an actuator driving layer for driving execution. The core is that a robot vehicle-mounted layer adopts a highly-modularized circuit design and integrates a track analysis and decision-making unit, a local state sensing fusion device, a multi-machine cooperative communication gateway and an independent safety monitoring module. Through a method of combining centralized planning and distributed intelligent control, individual autonomous obstacle avoidance and real-time trajectory optimization of multiple robots under global collaborative performance are realized, and by means of hardware modular design, the reliability, maintainability and expansibility of the system are remarkably improved, and the system is suitable for large-scale popularization and application. The problems of poor flexibility, weak collaboration and difficult maintenance in the prior art are solved.

The utility model discloses an automobile LED headlamp which comprises a lamp shell, one side of the lamp shell is connected with a lampshade, a step plate is installed in an inner cavity of the lamp shell, a plurality of circuit boards which are distributed in order are installed on the step plate, an LED lamp wick is installed on the surface of each circuit board, a reflecting cover is installed on the step plate, and the LED lamp wick is installed on the reflecting cover. The LED lamp wick is located in an inner cavity of the reflecting cover, and the reflecting cover is located in an inner cavity of the lampshade. The lampshade and the lamp shell are convenient to disassemble and assemble through the matching between the convex blocks and the insertion holes in the convex lugs, and the limiting supports are matched with the insertion openings and the insertion grooves, so that during installation, only the step plate needs to be placed into the inner cavity of the lamp shell, and the step plate can be conveniently disassembled and assembled. The limiting supports on the reflecting cover are inserted into the corresponding inserting openings and inserting grooves, so that the reflecting cover and the step plate can be installed and fixed, lossless disassembly and assembly of the internal structure of the automobile lamp are achieved, operation is easy and fast, the automobile lamp is convenient to repair and maintain, and practicability is high.

This invention relates to a packaging structure and design method for an embedded notch filter circuit within a single-photon detector readout module. The packaging structure includes a microwave multilayer dielectric substrate; the microwave multilayer dielectric substrate comprises multiple dielectric layers stacked along its thickness direction, with metal conductive strips at the top, bottom, and between each dielectric layer; multiple metallized vias are disposed within the microwave multilayer dielectric substrate; the metal conductive strips and metallized vias cooperate to form a distributed circuit, enabling signal transmission and circuit interconnection between the dielectric layers; an input notch filter circuit and an output notch filter circuit are embedded within the microwave multilayer dielectric substrate, both of which are interconnected by metal conductive strips and metallized vias located between the dielectric layers. Compared to traditional readout modules, this invention not only reduces the overall circuit size and manufacturing costs but also significantly improves the readout module's suppression performance for gated frequency signals and their harmonic signals.

The invention provides an electric heating joint simulation method of a semiconductor module. The electric heating joint simulation method comprises the following steps: establishing a three-dimensional model of the semiconductor module; performing semiconductor power device region division on the three-dimensional model of the semiconductor module according to a preset semiconductor power device region division rule; electromagnetic simulation is carried out based on the three-dimensional model file obtained after semiconductor power device region division; a cellular electrothermal coupling model of the semiconductor power device is established, and a distributed SPICE circuit of the semiconductor power device is established according to the metal electrode parasitic parameter netlist after region division of the semiconductor power device and the plurality of cellular electrothermal coupling models; sPICE simulation is carried out on the distributed SPICE circuit; and performing thermal simulation based on the three-dimensional model file after the region division of the semiconductor power device and the unit area power change netlist of each sub-region in the semiconductor power device. The simulation precision and the simulation efficiency can be improved, and the adaptability is wide.

To provide a phase shift circuit capable of reducing loss.SOLUTION: A phase shift circuit includes: a distributing circuit for distributing an input signal to a first signal and a second signal having a different phase from the first signal; a first phase shifter for outputting a first output signal by shifting the phase of the first signal by a first angle; a second phase shifter for outputting a second output signal with a phase difference more than 0 degree and less than 90 degrees from the first output signal by shifting the second signal by a second angle in opposite direction from the first angle; a first amplifier for outputting a first amplified signal by amplifying the first output signal; and a second amplifier for outputting a second amplified signal by amplifying the second output signal, and connected to the first amplifier so as to synthesize the first amplified signal and the second amplified signal.SELECTED DRAWING: Figure 1

The invention discloses a D-type high-temperature superconducting uninsulated coil quench analysis method, which realizes bidirectional strong coupling iterative solution of an electromagnetic-thermal field by establishing a distributed circuit network model adaptive to D-type complex geometry and combining an efficient Monte Carlo inductance integral algorithm and a two-dimensional heat conduction finite element model. And finally, a space-time distribution cloud picture of key physical quantities such as current distribution, temperature evolution and stress strain of the D-type coil in the quenching process can be output. And a complete numerical analysis tool and theoretical basis are provided for quench propagation mechanism analysis, thermal-mechanical stability evaluation and engineering safety design of the D-type high-temperature superconducting uninsulated coil.

The invention relates to a single-photon detector readout module embedded trap circuit packaging structure and a design method. The packaging structure comprises a microwave multilayer dielectric substrate; the microwave multilayer dielectric substrate comprises a plurality of dielectric layers stacked along the thickness direction, and metal conduction bands are arranged at the top and the bottom of the microwave multilayer dielectric substrate and among the dielectric layers; a plurality of metalized through holes are formed in the microwave multilayer dielectric substrate; the metal conduction bands are matched with the metalized through holes to form a distributed circuit, and signal transmission and circuit interconnection between the dielectric layers are realized; an input trapped wave circuit and an output trapped wave circuit are embedded in the microwave multilayer dielectric substrate, and the input trapped wave circuit and the output trapped wave circuit are both formed by connecting metal conduction bands and metalized through holes located between dielectric layers. Compared with a traditional read-out module, the read-out module has the advantages that the overall size of the circuit can be reduced, the production cost is reduced, and the suppression performance of the read-out module on the gating frequency signal and the harmonic signal thereof can be remarkably improved.

The utility model provides a smoke box low-frequency broadband linear frequency modulation signal transmitting and receiving device, which solves the problems of limited radar signal bandwidth and the like, and comprises a main frequency synthesis and closed loop calibration circuit, the main frequency synthesis and closed loop calibration circuit is connected with a transmitting link circuit, the transmitting link circuit is connected with a receiving link circuit, and the receiving link circuit is connected with a receiving link circuit. The transmitting link is connected with a baseband signal sampling and processing circuit through a local oscillator signal generating and distributing circuit. The utility model has the advantages of higher frequency modulation slope, stable operation and the like.

The utility model discloses a battery equalization module distributed line positioning device, which relates to the technical field of battery equalization and comprises a positioning plate, the top of the positioning plate extends upwards at equal intervals to form a plurality of line clamping plates, each group of line clamping plates comprises two symmetrical crescent arc plates with opposite opening directions, and an arc line clamping groove is formed between the two crescent arc plates. According to the utility model, accurate positioning of the flat cables is realized through the arc-shaped wire clamping grooves of the crescent-shaped arc plate, and neat arrangement of the flat cables is ensured, so that the flat cables are prevented from being damaged, and the production efficiency is improved. The design of the breaking-off grooves allows a user to flexibly adjust the size of the positioning plate and the distribution of the wire clamping plates according to actual requirements, the adaptability is improved, and the design of the matching of the breaking-off grooves and the double faced adhesive tape enables each small block to have independent bonding capacity.

The invention discloses a radio frequency communication circuit layout design method and system, and relates to an integrated circuit. The method comprises the following steps: constructing a design constraint parameter library; analyzing a circuit topological structure, identifying a circuit node type and extracting node attribute information; establishing a corresponding relation between nodes and grid units through a space mapping function, and generating a grid attribute matrix reflecting current distribution characteristics; calculating the electromagnetic interference intensity of each grid unit, marking the grid units with the electromagnetic interference intensity exceeding a preset threshold value as areas needing to be isolated, and generating an area marking matrix; constructing a parameterized distributed circuit model for the wiring allowable area, and establishing a mapping relation of the distributed circuit model by utilizing process parameters in the design constraint parameter library; constructing a frequency domain node voltage equation set and solving the frequency domain node voltage equation set to obtain voltage distribution data of each grid unit; constructing a multi-target evaluation function according to the voltage distribution data; the power supply network performance and the parasitic effect are balanced.

This invention discloses a distributed circuit for a multi-junction photovoltaic cell with dynamic fluorescence coupling parameters, comprising several connected light-emitting units and dark-emitting units. Each dark-emitting unit includes a connected first dark-emitting circuit and a second dark-emitting circuit, and each light-emitting unit includes a connected first light-emitting circuit and a second light-emitting circuit. The first dark-emitting circuit is connected to the first light-emitting circuit. The second light-emitting circuit incorporates a fluorescence coupling mechanism. A multi-junction photovoltaic cell is constructed based on these connected light-emitting and dark-emitting units. The current-voltage characteristics of the multi-junction photovoltaic cell are obtained by scanning the voltage between the external connections of the multi-junction photovoltaic cell. The simulation results obtained by the multi-junction photovoltaic cell distributed circuit model with dynamic fluorescence coupling parameters proposed in this invention are closer to the measured current-voltage characteristics than those obtained by single / dual diode circuit models and multi-junction photovoltaic cell distributed models without fluorescence coupling parameters.

The application discloses a spectrum sensing hypergraph partitioning method for MFS large-scale signal processing, which is used for partitioning a super large-scale integrated circuit which is comprehensively completed on an MFS platform, and comprises the following steps: hypergraph coarsening based on an LSH algorithm; performing an initialization method with spectrum sensing on the most coarsened hypergraph to obtain an initialization partition; running an FM algorithm with distance weighting on the obtained initialization partition to perform optimization, then desparsing, restoring the coarsened hypergraph to the hypergraph of the previous level, again using the FM algorithm to locally optimize, and alternately performing desparsing and the FM algorithm until the most original hypergraph, and completing the hypergraph partitioning. Compared with a traditional multi-polarized hypergraph partitioning method, the application can perform topology optimization for an MFS system, can process multi-dimensional weights, is helpful to improve the performance of the distributed circuit, and leaves more resource redundancy for subsequent wiring.

A multi-output power converter having a single inductor is provided. The multi-output power converter includes a high-side switch, a low-side switch, a control circuit, a plurality of output switches and a signal duty distributing circuit. A node between a first terminal of the low-side switch and a second terminal of the high-side switch is connected to a first terminal of the inductor. A first terminal of each of the plurality of output switches is connected to a second terminal of the inductor. The signal duty distributing circuit sets duty cycles of a plurality of waveforms of a plurality of switching signals, according to output voltages respectively from second terminals of the plurality of output switches. The signal duty distributing circuit outputs the plurality of switching signals respectively to control terminals of the plurality of output switches.

This product is a wiring relay device, or so-called relay box, that can be attached to road vehicles, especially saddle-type vehicles. The terminals on the rear side can be connected to the vehicle's battery, and the circuit can be distributed into four. Each of the distributed circuits is provided with a fuse and screws for connecting the terminals.

The invention discloses a cable elbow type head insulation abnormity detection method based on semi-conductive shielding layer distribution potential. The method comprises the following steps: constructing a distributed circuit model of the cable elbow-shaped head, enabling a conductor layer to be equivalent to an ideal voltage source node, enabling an insulating layer to be equivalent to a radial distribution capacitance chain, enabling a semi-conductive shielding layer to be equivalent to a distributed resistance network, and establishing a potential distribution mathematical model; determining a potential test point on the surface of the semi-conductive layer, and collecting an axial potential sequence; and comparing the acquired axial potential sequence with the potential distribution mathematical model, and identifying an insulation abnormal region. The method provided by the invention breaks through the limitation of the traditional non-contact electricity testing technology under a full-shielding structure, and can realize the accurate and stable detection of the insulation state on the premise of not damaging the cable structure.