265 results about "Distribution circuits" patented technology

The invention relates to the technical field of power distribution automation auxiliary power supply control, and discloses an intelligent power distribution circuit system for a digital ring main unit, which comprises a transient voltage gradient induction bridge circuit, a hardware signal processing circuit, a power switch unit and a controlled energy release unit, according to the system, a transient voltage gradient induction bridge circuit is used for collecting a primary side bus voltage change rate signal, a hardware signal processing circuit carries out derivation operation on an induction signal and compares the induction signal with a voltage gradient threshold value, and a power switch unit is blocked at the moment that the voltage abnormally drops so as to cut off a load current path. According to the invention, a hardware parameter direct mapping mechanism is utilized to realize microsecond transient protection response, and the physical decoupling of protection logic and digital software is realized by balancing bus potential pulse caused by sudden unloading of a load through the inherent dehumidification resistor in the multiplexing cabinet.

The invention discloses a high-side driving circuit, an electronic device, a vehicle and a control method. False triggering of a short-circuit protection mechanism is avoided. The high-side driving circuit comprises a power distribution circuit, a sampling circuit and a fault protection circuit, the power distribution circuit comprises a PMOS transistor and a first resistance circuit; the grid electrode of the PMOS tube is grounded through the first resistance circuit, the drain electrode of the PMOS tube is connected with a load, and the source electrode of the PMOS tube and the input end of the fault protection circuit are connected with a power supply; the output end of the fault protection circuit is connected with the grid electrode of the PMOS tube; the sampling circuit is connected with the drain electrode of the PMOS tube and the ground; the output end of the sampling circuit and the control end of the fault protection circuit are connected to the control unit; the control unit judges whether load short circuit occurs or not according to the sampling voltage, if not, the fault protection circuit is forbidden to output voltage, and if yes, the fault protection circuit is controlled to convert input voltage into target voltage to be output; the PMOS tube is in a variable resistance region when the fault protection circuit has no voltage output, and enters a cut-off region when the PMOS tube outputs a target voltage.

The invention discloses an electrically-operated drop-out fuse and a control method, and relates to the field of circuit devices for power supply or distribution, the electrically-operated drop-out fuse comprises a protective insulator, an intelligent control module, a drop-out assembly, a driving mechanism and a transmission mechanism, the protective insulator is of a longitudinally-penetrating groove structure, the top of the protective insulator is provided with a closed upper cover, and the intelligent control module is connected with the drop-out assembly; two sides of the protective insulator extend downwards to form side walls, the side walls and the insulator form a shield used for shielding the upper static contact and the upper moving contact, a closed cavity is arranged at the rear part of the protective insulator, and a driving mechanism is arranged in the cavity; the intelligent control module is electrically connected with the driving mechanism, the driving mechanism is connected with the transmission mechanism, and the intelligent control module controls the driving mechanism to drive the falling assembly through the transmission mechanism to realize opening or closing; according to the fuse and the control method provided by the invention, remote intelligent switch-on and switch-off can be realized, the operation is safe and reliable, the structure is compact, and the protection performance is excellent.

The invention relates to the technical field of power supply or power distribution circuit devices of power systems, and discloses a power distribution loop self-reset state control system based on thermal parameter feedback, which comprises a thermal parameter acquisition module used for acquiring a physical heat dissipation temperature sequence of a power supply node after tripping; the historical load mapping module is used for calculating a closing transient temperature rise estimated value according to the load characteristic data within 24 hours before tripping and generating a dynamic correction value of a heat dissipation slope judgment boundary; the logic arbitration module is used for calculating the deviation degree of the heat dissipation slope of the double-window sampling sequence and judging whether the deviation degree is converged into a heat dissipation slope judgment boundary updated according to the dynamic correction amount or not; according to the invention, through a closed loop arbitration mechanism of a heat dissipation characteristic slope, a physical heat dissipation steady state inflection point is identified, a maloperation risk caused by environment thermal resistance drift and closing inrush current impact is eliminated, and power supply continuity is guaranteed.

The invention relates to the technical field of power system monitoring and anomaly analysis, and discloses a museum power distribution loop abnormal power consumption mode identification method and system. The method comprises the following steps: acquiring millisecond-level current and voltage original waveforms of each level of power distribution loop of a museum, and extracting a time sequence current sequence containing harmonic distortion rate mutation and leakage current high-frequency pulses; performing exhibition area portrait classification based on the sequence, and determining dominant load type labels of each loop; fusing the load label and the time sequence, and predicting a normal current track of each loop; collecting a latest current waveform in real time, comparing the latest current waveform with the predicted trajectory, and identifying and marking a potential abnormal loop; abnormal source equipment combination judgment and abnormal millisecond-level evolution characteristic analysis are carried out on the abnormal loop; and judging whether to trigger instant early warning or not according to the abnormal evolution characteristics and the equipment combination type. According to the invention, accurate identification and source positioning of abnormal power utilization of the distribution loop of the museum are realized, the false alarm rate is reduced, and the timeliness and reliability of abnormal response are improved.

The present disclosure provides a single-inductor multiple-output voltage converter, a power supply chip, and an electronic device, where the single-inductor multiple-output voltage converter comprises an energy generation circuit, an energy distribution circuit, a peak-inductor-current detection circuit, a zero-inductor-current detection circuit, and a control logic circuit. The aforementioned converter can provide multiple different output voltages using a single inductor without multiple operational amplifiers, thereby avoiding excessive bandwidth demand associated with multiple operational amplifiers, thus reducing power consumption.

A power distribution circuit for an electrically powered aircraft includes a plurality of batteries and a plurality of electric propulsion systems. A plurality of power distribution circuits each couple a battery of the plurality of batteries to two or more electric propulsion systems. The plurality of electric propulsion systems are positioned on the aircraft to apply balanced forces to the aircraft such that in the event of a failure, the aircraft remains stable and only experiences a loss in altitude or speed.

This electronic device comprises: a wireless communication circuit; a distribution circuit connected to the wireless communication circuit; a frame defining at least a portion of a side surface of the electronic device, wherein the frame includes a conductive portion having a first feed point and a second feed point electrically connected to the distribution circuit; and a phase shifting circuit for connecting the distribution circuit to the first feed point of the conductive portion. The conductive portion includes a first portion between the first feed point and the second feed point, a second portion between the first feed point and one end of the conductive portion, the first feed point being distinguished from a ground of the electronic device, and a third portion between the second feed point and the other end of the conductive portion, the second feed point being distinguished from the ground of the electronic device. The conductive portion is configured to function as a radiator of an antenna through the first portion of the conductive portion, the second portion of the conductive portion, and the third portion of the conductive portion.

Disclosed techniques relate to power management by work distribution circuitry. In some embodiments, a graphics processor includes first and second graphics processor sub-units that respectively include distributed work queue circuitry configured to store graphics work and shader circuitry configured to execute instructions specified by stored graphics work in the sub-unit's distributed work queue circuitry. In some embodiments, work control circuitry includes queue access circuitry to access graphics work in multiple queues and distribution circuitry to assign portions of respective sets of graphics work accessed from the multiple queues to the first and second graphics processor sub-units for execution. In some embodiments, tracking circuitry tracks status of assigned sets of graphics work. In some embodiments, the work control circuitry communicates with the power control circuitry to control power state of portions of the graphics processor based on: status of multiple queues and status of assigned sets of graphics work tracked by the tracking circuitry.

A Doherty amplifier according to the present disclosure comprises a main amplifier, an auxiliary amplifier, a distribution circuit that distributes signals to the main amplifier and the auxiliary amplifier, and a phase compensation circuit. The main amplifier has a first input matching circuit and a plurality of main amplification stages. The auxiliary amplifier has a second input matching circuit and a plurality of auxiliary amplification stages. The distribution circuit has a first line connected to the first input matching circuit and a second line connected to the second input matching circuit. The electrical length of the first line is such that the input impedance of the first line is higher than the characteristic impedance of the first line and the imaginary component is less than 10% of the real component when a small signal is input. The electrical length of the second line is such that the input impedance of the second line is higher than the characteristic impedance of the second line and the imaginary component is less than 10% of the real component when a small signal is input. The phase compensation circuit is provided in an inter-stage matching circuit of the plurality of main amplification stages or the plurality of auxiliary amplification stages.

A content channel generation device includes: a splitting circuit for generating resource units according to resource assignments; a resource unit assignment circuit for generating a full binary tree according to the resource units; a node computing circuit for generating a minimum full binary tree according to the full binary tree; a load balance circuit for generating user field numbers corresponding to content channels according to the minimum full binary tree and a load balance function; a merging circuit for generating a traversal result of the minimum full binary tree according to a traversal algorithm, and for generating a merged traversal result according to the traversal result; and a common field generation circuit for generating a resource assignment indicator according to the merged traversal result to generate a common field.

An antenna array module is provided, in which two or more antenna units are mounted on one side, which is provided with two power divider circuits from a power supply circuit board, and a filter is mounted on the other side, which is provided with two matching circuits from the same board. Each of the power divider circuits is provided with one input terminal and several output terminals. The output terminals of one power divider circuit provide -45° polarized power to the antenna units, respectively, and the output terminals of the other power divider circuit provide +45° polarized power to the antenna units, respectively.Each coupling circuit is provided with a radio frequency input terminal and an output terminal, with the output terminal of each coupling circuit connected to the input terminal of a power divider circuit, respectively. The filter is provided with at least two output terminals, each of the two filter output terminals being electrically connected to the radio frequency input terminals of the coupling circuits, respectively. A base station antenna is also provided. The present invention achieves integration and modularity, improving expandability through simple mounting and connection structures, which facilitates subsequent debugging and maintenance, thereby reducing manufacturing and operating costs.

The utility model provides a kind of photoelectric sensor particle detection device and equipment based on double channel detection, it is related to optical particle detection technical field.The device sensor sampling circuit output end is connected with sampling signal distribution circuit input end;Sampling signal distribution circuit first output end is connected with first signal gain circuit input end, and second output end is connected with second signal gain circuit input end;First signal gain circuit output end is connected with first analog-digital conversion circuit input end;Second signal gain circuit output end is connected with second analog-digital conversion circuit input end;The gain coefficient of first signal gain circuit is greater than second signal gain circuit;The output end of first analog-digital conversion circuit and second analog-digital conversion circuit is connected with digital signal processing circuit.The utility model can make signal pass through different gain amplifier, double ADC sampling, make one way channel satisfy small particle measurement, another way satisfies large particle measurement, and the electrical signal of larger particle and smaller particle can be considered.

This invention relates to a dedicated branch box for AC charging piles and its power supply control method. The box includes a housing, a main power supply circuit within the box, a branch distribution circuit electrically connected to the main power supply circuit, and multiple outgoing line units. The main power supply circuit includes a horizontal main busbar arranged horizontally within the box, an incoming line interface at one end of the horizontal main busbar, an expansion interface at the opposite end, and a main disconnect switch between the incoming line interface and the horizontal main busbar. The incoming line interface and the expansion interface are fixedly connected to the horizontal main busbar, and the expansion interface is used to connect to the main power supply circuit of another branch box of the same type via a cable. The branch distribution circuit is located on one side of the horizontal main busbar and electrically connected to it. Multiple outgoing line units are spaced apart along the length of the branch distribution circuit. Each outgoing line unit includes a circuit breaker installed on the branch distribution circuit and an outgoing line interface electrically connected to the circuit breaker. The outgoing line interface is located at the bottom of the box. This invention improves power distribution safety.

The utility model relates to the technical field of IGBT (Insulated Gate Bipolar Translator) devices, in particular to an adjustable IGBT power distribution circuit, which comprises a driving module, an IGBT module, a measuring module and a main control module which are electrically connected in sequence, and the measuring module comprises a current sampling unit, a voltage sampling unit, a first analog-to-digital conversion unit and a second analog-to-digital conversion unit. The current sampling unit is used for acquiring current data entering a collector electrode of the IGBT module, the voltage sampling unit is used for acquiring voltage data of the collector electrode of the IGBT module, and the main control module calculates a power value according to the current data and the voltage data and controls the driving module. According to the utility model, the synchronous acquisition and high-precision digitalization of current and voltage signals are realized, the signal interference is obviously reduced, the accuracy of power calculation is ensured, the main control module dynamically adjusts the output of the driving module based on a real-time power value, the load change can be quickly responded, the power distribution efficiency is optimized, and local overload or resource waste is avoided.

The present application provides a fluid distribution valve, comprising: a first opening and closing assembly arranged in a fluid inlet chamber, the first opening and closing assembly being displaceable along an axis to selectively open and close the communication between a flow inlet pipe and the fluid inlet chamber, and to close the communication between the fluid inlet chamber and a first fluid outlet chamber; and a second opening and closing assembly arranged in a second fluid outlet chamber, the second opening and closing assembly being displaceable along the axis to selectively open and close the communication between the fluid inlet chamber and the second fluid outlet chamber. The present application also provides a fluid supply system, comprising: a pump device for discharging the fluid; and the fluid distribution valve connected to the pump device. The fluid distribution valve does not have the problem of mixed flow in different outlet circuits during use, and is particularly suitable for application scenarios requiring more than two distribution circuits. The fluid supply system of the present application achieves the control function of supplying fluid to multiple fluid distribution circuits by controlling the motor speed of the pump device, thereby eliminating the need for electrically driven control of the valve stem.

The invention discloses a high-side driving circuit, electronic equipment and a vehicle, relates to the technical field of power electronics, and improves the response speed of overcurrent protection of the high-side driving circuit. The high-side driving circuit comprises a power distribution circuit and a current-limiting protection circuit, the power distribution circuit comprises a PMOS transistor and a first resistance circuit; the grid electrode of the PMOS tube is grounded through the first resistance circuit, the drain electrode of the PMOS tube is connected to a load, and the source electrode of the PMOS tube and the input end of the current-limiting protection circuit are connected to a power supply; the output end of the current-limiting protection circuit is connected with the grid electrode of the PMOS tube; when the current-limiting protection circuit detects that the load current exceeds a preset value, the current-limiting protection circuit is switched from a closed state to an open state; the current-limiting protection circuit converts an input voltage into a target voltage to be output in an open state, and has no voltage output in a closed state; the PMOS tube is in a variable resistance area when the current-limiting protection circuit is in a closed state, and is in a constant current area when the current-limiting protection circuit is in an open state.

The present disclosure describes systems and methods for assigning nodes in a circuit design to layers. The method includes identifying a plurality of structures in a circuit design. Each of the plurality of structures includes four nodes of the circuit design and each of the four nodes are connected to every other node in the respective structure. The method also includes removing, from the plurality of structures, an even number of pairs of connected nodes of the circuit design to form a reduced node structure and assigning circuit layers for the nodes in the reduced node structure. The method further includes assigning, by a processing device, circuit layers for the pairs of connected nodes removed from the plurality of structures based on the assigned circuit layers for the nodes in the reduced node structure.

A display panel, comprising a semiconductor layer. The semiconductor layer comprises a plurality of first semiconductor patterns. The display panel further comprises a source driving circuit, a plurality of sub-pixels, a plurality of data lines, a plurality of demultiplexer circuits, and a plurality of input signal lines. The plurality of sub-pixels are arranged in multiple rows and columns, wherein the sub-pixels in a same column emit light of the same color. One data line is connected to at least one column of sub-pixels. Each demultiplexer circuit comprises a plurality of sub-demultiplexer circuits; each sub-demultiplexer circuit comprises a plurality of transistors; and channels, first electrodes, and second electrodes of the plurality of transistors are all arranged in a same first semiconductor pattern. One sub-demultiplexer circuit is connected to at least two data lines; and in addition, at least two columns of sub-pixels connected to at least two data lines emit light of the same color and are not adjacent to each other, and at least two data lines connected to sub-pixels emitting light of different colors are crossed. The input signal lines are located on the side of the plurality of demultiplexer circuits away from a display area. One input signal line is connected to the source driving circuit and one demultiplexer circuit.

A smart home power control device includes an AC power input terminal, an AC-DC circuit, a DC voltage conversion circuit, a power distribution circuit, multiple power distribution branches, a multi-channel LED dimming control circuit, several power switches, and a controller. The input and output terminals of the AC-DC circuit are connected to the AC power input terminal and the voltage input terminal of the power distribution circuit, respectively. The voltage output terminal of the power distribution circuit is connected to the voltage input terminals of the multiple power distribution branches. The voltage output terminals of the multiple power distribution branches are connected one-to-one with the voltage input terminals of the multi-channel LED dimming control circuit. Several power switches are connected in series between the voltage output terminals of every two adjacent power distribution branches. The controller controls the operation of the power distribution circuit, the multiple power distribution branches, the multi-channel LED dimming control circuit, and the power switches. This invention enables a single power supply to power multiple loads and supports power sharing.

The application relates to a high-isolation frequency distribution circuit based on common-base amplification, which comprises a gain control amplifier, a distributor, a common-base amplification network and a filter; the gain control amplifier realizes gain control amplification of an input frequency signal and attenuated input to the distributor; the distributor realizes power distribution and isolation of the frequency signal without additional noise, and realizes multi-way output, each way of output being connected with a common-base amplification network; the common-base amplification network improves the reverse isolation characteristic of the frequency signal through the common-base triode current buffer characteristic, realizes high-isolation between multi-way output frequency signals and inputs the frequency signals to the filter; the filter suppresses the out-of-band noise of the frequency signal to reduce the harmonic and the out-of-band noise of the frequency signal. The application can realize amplification, distribution, isolation and filtering of low-noise frequency signals, improves the integration of the output frequency signal of the time-homogeneous equipment, and has the advantages of high isolation, low additional noise and the like.

Assembly combining a battery module and its thermal regulation device. The invention relates to an assembly comprising at least one battery module (1) made up of cells (11) and a thermal regulation device (2) for the battery module (1), the regulation device (2) comprising a surface (21) at least a portion of which is substantially flat and positioned against the battery module (1) and a thickness incorporating at least one distribution branch (3) for a heat transfer fluid, characterized in that the distribution branch (3) comprises: a first distribution circuit (31) arranged opposite cells (11) of the battery module (1), at least a second distribution circuit (32) of which at least a first portion 321 is arranged so as not to be opposite cells (11) of the battery module (1) and a second portion (322) is arranged opposite cells (11) of the battery module (1). Figure to be published with the abbreviation: Fig.2.

This invention relates to the field of high and low voltage power distribution equipment technology, and in particular to an energy-saving, rapidly expandable high and low voltage switchgear power distribution equipment, including a high-voltage switchgear, a low-voltage switchgear, and a junction box. A mounting bracket is fixed to the inner wall of the high-voltage switchgear, and C-shaped profiles are fixedly connected to the mounting brackets. A crossbeam assembly angle iron is bolted to the side of the C-shaped profile, and a crossbeam is fixed to the side of the crossbeam assembly angle iron. The crossbeam has slots on both sides, in which drawer load-bearing plates and expansion plates are respectively engaged. A cooling fan is installed on the top right side of the high-voltage switchgear. This energy-saving, rapidly expandable high and low voltage switchgear power distribution equipment adopts a structural design that combines modular slots inside the high-voltage switchgear with detachable expansion plates. It abandons the traditional integrated fixed frame mode, and relies on the pre-set slots on the crossbeams to freely install and remove expansion plates, achieving rapid expansion of the power distribution circuits and electrical modules within the cabinet without on-site cutting, welding, or modification of the cabinet.

The utility model relates to new energy equipment technical field, specifically disclose a kind of electric vehicle charging pile, including two charging pile main cabinets and control terminal, the output of charging pile main cabinet is all installed with PDU output module, two PDU output modules are electrically connected between, PDU output module is also connected with control terminal communication, the input of any charging pile main cabinet is equipped with first distribution circuit and second distribution circuit, first distribution circuit is installed with first star topology distribution module between the output of charging pile main cabinet, second distribution circuit is installed with second star topology distribution module between the output of charging pile main cabinet, the output of first star topology distribution module and the output of second star topology distribution module between using ring type topology network connection.The utility model has solved the problem that the delay between the module of traditional modularization charging pile is high when expanding, power distribution is uneven, reduces the overall working efficiency of charging pile after expansion.

The invention provides a K-band receiving component chip circuit device, which belongs to the technical field of radio frequency integrated microsystems and comprises a gallium arsenide low-noise amplification circuit and a silicon-based amplitude-phase multifunctional circuit. The gallium arsenide low-noise amplification circuit is located at the front end of the receiving link; the silicon-based amplitude-phase multifunctional circuit comprises a driving amplification circuit, a numerical control attenuation circuit, a numerical control phase shift circuit and a power distribution circuit. The output end of the gallium arsenide low-noise amplification circuit is connected with the input end of the driving amplification circuit, the output end of the driving amplification circuit is connected with the input end of the numerical control attenuation circuit, the output end of the numerical control attenuation circuit is connected with the input end of the driving amplification circuit, and the output end of the driving amplification circuit is connected with the input end of the numerical control phase shift circuit. The output end of the numerical control phase shift circuit is connected with the input end of the power distribution circuit, and the output end of the power distribution circuit is connected with the COM end. According to the invention, a complex circuit is simplified, the occupation of large-scale simulation on resources is reduced, the simulation time is shortened, and different K-band scenes are adapted.

The disclosed embodiments are provide a liquid cooling arrangement and method for a server rack including input and output temperature sensors of the server rack, a liquid cooling subsystem comprising a pump unit to forcibly urge the cooling liquid flow, a liquid distribution circuit fluidly-coupled to the liquid cooling subsystem and the server rack and configured to convey the cooling liquid to / from the server rack, input and output pressure sensors configured to measure the pressure of the cooling liquid flow received, and issued, by the pump unit, and a control unit. The control unit is configured to direct the pump unit to operate at full capacity, quantify pressure differences between the input / output pressure sensor measurements, determine an optimal volume flow rate based on a desired predetermined temperature difference between the input / output temperatures and empirical pump operational characteristics, and adjust the pump unit speed based on the determined optimal flow rate.

The present application relates to power distribution regulation technical field, specifically to a kind of reactive power compensation local closed-loop regulation method based on intelligent fusion terminal, comprising: intelligent fusion terminal reads the fixed configuration parameter of intelligent capacitor, and real-time acquisition multi-dimensional electric parameters of distribution circuit;Calculate reactive power compensation demand, and generate the regulation parameter of intelligent capacitor according to reactive power compensation demand;Intelligent fusion terminal will generated regulation parameter be issued to intelligent capacitor, and receive the state feedback signal of the intelligent capacitor;Determine regulation state according to state feedback signal and execute retry logic;Copy read the multi-dimensional electric parameters of distribution circuit after regulation compensation, based on preset optimal working condition evaluation model, optimal evaluation is carried out to current compensation effect, and iteration regulation is executed according to optimal evaluation result;Enter next round of regulation cycle, and realize uninterrupted closed-loop regulation.Relying on intelligent fusion terminal realizes the edge side local real-time autonomous regulation of reactive power compensation.

A system for diagnosing a power supply distribution circuit that distributes power supplied from a DC-DC converter and an auxiliary battery to a plurality of loads, the system comprising: a plurality of switches provided between the DC-DC converter and the auxiliary battery and the loads; a switching unit that switches a connection state of the switches; and a diagnosis unit that diagnoses the power supply distribution circuit based on the connection state of the switches and a change in voltage and current in the power supply distribution circuit.

The utility model discloses an extensible double-ring information system, which comprises a first link, a second link and a server, the first link comprises a first monitor, the second link comprises a second monitor, the tail end of the first monitor in the first link is provided with a plurality of first monitors, and the tail end of the second monitor is provided with a plurality of second monitors. A plurality of second monitors are arranged at the tail ends of the second monitors in the second link, the first link and the second link form a double-ring layout, a setting and reporting mechanism of the wireless local area devices is provided, and the problems of high complexity and high cost during arrangement and repair of wired devices are solved. The wireless device does not need cables such as optical fibers or copper wires as signal transmission media, and only needs power lines. Since most devices are internally provided with power supply allocation circuits, the reasonable power supply voltage drop or voltage fluctuation of the power line still belongs to an acceptable range, and the adaptation of the wireless device is greatly improved.