35 results about "Loading coil" patented technology

The invention discloses a magnetic moment comparator device and a measurement method. The magnetic moment of the current-carrying standard coil is in direct proportion to the magnetic field generated at a fixed distance on the axis, and according to the principle that a magnetic dipole layer and the current-carrying coil have equivalence in electromagnetism, when the space magnetic field can be accurately measured, the current-carrying standard coil can be used for measuring the magnetic moment of a magnetic sample at the same position. A magnetic moment comparator is designed in a magnetic shielding cylinder, an atomic magnetometer is used for measuring an absolute magnetic field with high sensitivity, a current-carrying standard coil is placed at the position, with the distance being r0, of one side of an atomic gas chamber in the direction of a background magnetic field, and the axis of the current-carrying standard coil is parallel to the direction of the background magnetic field; the magnetic moment direction of the magnetic sample is parallel to the background magnetic field direction, when the magnetic sample is moved by the sample transfer rod to the position, which is r0 away from the atomic gas chamber, of the other side of the atomic gas chamber, the current introduced into the standard coil is changed in real time by keeping the background magnetic field unchanged as a judgment condition, and the magnetic moment of the magnetic sample is equal to the magnetic moment of the current-carrying standard coil; the directions are opposite.

The invention discloses an energy consumption type pulse special power supply topology circuit, particularly relates to the technical field of power supply circuits, and is technically characterized in that a forward energy storage unit is used for outputting forward current to an external load coil and providing energy required by main compression for a field inversion configuration device; the negative energy storage unit is used for outputting negative current to an external load coil and providing bias field energy for the field inversion configuration device; the charging unit is also used for charging the current source unit; the current source unit is used for providing bias current for an external load coil and creating a bias condition for the field inversion configuration device; the resonance unit is used for outputting resonance current to an external load coil and providing energy required by pre-ionization for the field inversion configuration device; the first consumption unit is used for consuming residual electric energy after the external load coil and the current source unit work; the first control unit is used for controlling short circuit of the first consumption unit; the second control unit is used for controlling the on-off of the resonance unit; and the third control unit is used for controlling the on-off of the negative energy storage unit.

The embodiment of the invention provides a low-noise hundred-ampere-level current source which can be applied to the technical field of current sources. The current source comprises a loop compensation module, a voltage driving circuit and a current detection feedback module which are sequentially connected in series, the current source further comprises an energy storage module which is connected with the voltage driving circuit and the current detection feedback module in parallel, and the energy storage module is used for providing electric energy for a load coil; the loop compensation module is used for performing compensation operation on the accessed analog control signal and the voltage feedback signal and outputting a compensation signal; the voltage driving circuit is used for obtaining electric energy from the energy storage module through the load coil based on the compensation signal output by the loop compensation module so as to provide output current for the current detection feedback module; and the current detection feedback module is used for sampling the output current, converting the output current into a voltage feedback signal and outputting the voltage feedback signal to the loop compensation module to form a feedback loop so as to adjust the output current.

The invention discloses an energy feedback type pulse special power supply topology circuit, particularly relates to the technical field of power supply circuits, and is technically characterized in that a forward energy storage unit is used for outputting forward current to an external load coil and providing energy required by main compression for a field inversion configuration device; the current source unit is used for receiving and storing electric energy, providing bias current for an external load coil and creating bias conditions for the field inversion configuration device; the negative energy storage unit is used for outputting negative current to an external load coil and providing bias field energy for the field inversion configuration device; the charging unit is also used for charging the current source unit; the resonance unit is used for outputting resonance current to an external load coil and providing energy required by pre-ionization for the field inversion configuration device; the first bidirectional combination switch is used for controlling the on-off of the resonance unit; and the second bidirectional combination switch and the third bidirectional combination switch are used for controlling the positive on-off and negative on-off of the circuit.

The invention discloses a three-frequency-based three-dimensional omnidirectional wireless electric energy transmission system, which relates to the technical field of wireless electric energy transmission and comprises a direct-current power supply, three high-frequency inverters, three transmitting coils, three planar single-pole receiving coils, a planar single-pole load coil, a rectifier and a load. The three transmitting coils are orthogonally arranged and have different resonant frequencies, the three receiving coils and the load coil are located on the same plane, and the load coil surrounds the three receiving coils and is inductively coupled with the three receiving coils; each high-frequency inverter is connected with a direct-current power supply and a corresponding transmitting coil, the three receiving coils are respectively in resonant coupling with the three transmitting coils through three frequencies, the input end of the rectifier is connected with a load coil, and the output end of the rectifier is connected with a load. The device is suitable for simultaneous charging of multiple devices, transmission is stable, and practicability is high.

This invention belongs to the field of underwater wireless power transmission technology and discloses a multi-load wireless power transmission system and design method. The system includes a multi-load coil coupling mechanism and a resonant compensation circuit. The multi-load coil coupling mechanism is used to perform operational tasks, and the resonant compensation circuit is used to transmit power to the multi-load coil coupling mechanism. The invention can be used in environments with any number of loads, has minimal interference between secondary sides, and provides stable multi-load transmission. The coil structure is simple, significantly reducing design complexity.

Apparatuses, systems, and methods for determining a load coil value for a load coil connected to an antenna. The system may include at least one adjustable inductive coil. The at least one adjustable inductive coil may have a plurality of turns. The at least one adjustable inductive coil may be connected to the antenna. The system may include an actuator. The actuator may be connected to the at least one adjustable inductive coil and may be configured to adjust at least one characteristic of the at least one adjustable inductive coil. The system may further include a user interface connected to the actuator and configured to control the actuator to adjust the at least one characteristic of the at least one adjustable inductive coil.

The invention discloses a miniaturized tunable three-dimensional antenna which comprises a distributed large capacitor structure, a magnetic ferrite material loading coil structure and a tunable feed circuit board. The distributed large-capacitance structure comprises multiple layers of metal plates which are embedded and arranged in a laminated manner along the vertical direction; in the magnetic ferrite material loading coil structure, one end of a coil is connected with a top metal plate of the distributed large capacitor structure. The tunable feed circuit board comprises a plurality of microstrip transmission lines, and each microstrip transmission line is provided with a disconnection part used for arranging an adjustable capacitor / inductor or a switching device. The distributed large-capacitance structure is connected with one microstrip transmission line through one metal column; in the magnetic ferrite material loading coil structure, the other end of the coil is connected with the other microstrip transmission line. The antenna provided by the invention can give consideration to a larger bandwidth through the tuning circuit, allows the antenna to adjust the working frequency within a certain frequency range, and has a very strong anti-interference capability.

The invention provides a control device and method of a pulse power supply system, electronic equipment and a medium. The control device comprises a load coil (1), a loop inductor (2), a switch assembly (3), a follow current assembly (4), a loop resistor (5), a capacitor bank protection assembly (9), a charging protection assembly (10), a charging control switch (11), a direct current charging power supply (12) and a plurality of capacitor banks. A load coil (1), a loop inductor (2), a switch assembly (3), a follow current assembly (4) and a loop resistor (5) are sequentially connected, a plurality of capacitor banks are respectively connected with a capacitor bank protection assembly (9), a charging protection assembly (10) and a charging control switch (11) which are in one-to-one correspondence, and a direct current charging power supply (12) is respectively connected with the load coil (1), the loop resistor (5), the plurality of capacitor banks and the charging control switch (11). Wherein the load coil (1) comprises a positive wave load coil and a negative wave load coil.

The invention discloses a dual-load coil wireless electric energy transmission system, and relates to the technical field of wireless electric energy transmission, the system comprises a full-bridge inverter, a transmitting end, a first receiving end and a second receiving end, the output of the full-bridge inverter is connected with the input of the transmitting end, the transmitting end comprises a switch control capacitor C, a coil inductor L and a resistor R, and the switch control capacitor C is connected with the coil inductor L; the switch control capacitor C, the coil inductor L and the resistor R form a first resonance circuit, and the first receiving end and the second receiving end are both magnetically coupled with the coil inductor L; the first receiving end comprises a first load, and the second receiving end comprises a second load; the full-bridge inverter is used for converting direct current into alternating current and then transmitting the alternating current to the transmitting end; by controlling the capacitance value of the switch control capacitor C, different resonant frequencies are controlled to carry out time-sharing charging on the first load and the second load, and double loads are charged at different frequencies.

A power receiving device 3 of an uninterruptible power supply device 1 comprises: a plurality of resonant circuits (21-1 to 21-n), each comprising a receiving coil 22 and a resonant capacitor 23, and receiving power from a power transmission device 2 by resonance of the receiving coil 22 with the resonant capacitor 23 with respect to the AC power supplied to a transmitting coil 12 of the power transmission device 2; and a load coil 24, which is arranged so that it can be electromagnetically coupled to the receiving coil 22 of each resonant circuit and outputs the power received by the power transmission device 2 through each resonant circuit.The receiving coil 22 of each resonant circuit and the load coil 24 are formed as a wiring pattern in different layers of a substrate 5 which has a plurality of layers, and are connected to each other such that one end of the receiving coil 22 of each resonant circuit and one end of the load coil 24 have the same potential.

To provide a non-contact power supply device capable of simplifying wiring of a device on a power reception side.SOLUTION: A power reception device 3 of a non-contact power supply device 1, includes: a reception coil 22; and a resonance capacitor 23, and includes: a plurality of resonance circuits (21-1 to 21-n) that receives the power from a power transmission device 2 by resonating the reception coil 22 and the resonance capacitor 23 against an AC power supplied to a transmission coil 12 of the power transmission device 2; and a load coil 24 that is arranged so as to enable an electromagnetic coupling of the reception coil 22 of each resonance circuit, and outputs the power received from the power transmission device 2 by each resonance circuit. The reception coil 22a and the load coil 24 in each resonance circuit are formed as a wiring pattern in a layer having a plurality of layers of which a substrate 5 is different each other, and one end of the reception coil 22 and one end of the load coil 24 in each resonance circuit are connected so as to become a same potential.SELECTED DRAWING: Figure 1

The embodiment of the present invention provides a low-noise 100-ampere current source, which can be applied to the field of current source technology. The current source includes: a loop compensation module, a voltage drive circuit, and a current detection feedback module connected in series in sequence. The current source also includes an energy storage module connected to the voltage drive circuit and the current detection feedback module, wherein the energy storage module is used to provide electric energy to the load coil; the loop compensation module is used to perform compensation operations on the connected analog control signal and the voltage feedback signal, and output a compensation signal; the voltage drive circuit is used to obtain electric energy from the energy storage module through the load coil based on the compensation signal output by the loop compensation module, so as to provide output current to the current detection feedback module; the current detection feedback module is used to sample the output current, and convert the output current into a voltage feedback signal and output it to the loop compensation module, so as to form a feedback loop and adjust the output current.

The invention belongs to the technical field of underwater wireless power transmission, and discloses a multi-load wireless power transmission system and a design method, and the system comprises a multi-load coil coupling mechanism and a resonance compensation circuit. The multi-load coil coupling mechanism is used for executing an operation task; the resonance compensation circuit is used for transmitting electric energy to the multi-load coil coupling mechanism. The method can be used for any number of load environments; the interference between the secondary sides is small, and the multi-load transmission effect is stable; the coil structure is simple, and the design complexity is greatly reduced.

The present invention proposes an adaptive adjustment device and method for variable distance wireless energy transmission, which realizes high-efficiency transmission of electric energy at different transmission distances by offsetting the source coil and the transmitting coil and / or the load coil and the receiving coil by a certain distance. The device includes one or two guide rails (or other types of mechanisms that can achieve translation), a transmitting coil and a receiving coil, a source coil and a load coil; the source coil is fixed on the guide rail and can be offset to form a certain distance with the transmitting coil by adjustment; the load coil is fixed on another guide rail and can be offset to form a certain distance with the receiving coil by adjustment; the source coil and the load coil can be adjusted to a certain offset distance at the same time or the offset distance can be adjusted independently. The present invention can ensure high-efficiency energy transmission at different transmission distances, and can solve the problem that the transmission efficiency of traditional magnetic resonance wireless energy transmission decreases sharply as the transmission distance changes.

A communication antenna comprises an electrically conductive base assembly at a lower section of the antenna; a loading coil assembly, at a midsection of the antenna, and electrically connected to the base assembly; and a re-entrant capacitive hat assembly, at an upper section of the antenna, and electrically connected to the loading coil assembly, wherein the re-entrant capacitive hat assembly includes: a hat housing and a support tube longitudinally extending through the hat housing a domed shaped endcap and an insulative bushing.

The invention relates to a quench machining tool control system, which comprises a quenching power supply module, a rectification inverter bridge, a three-phase alternating-current power grid, an intermediate-frequency plate, a quenching power supply module, a control module, a control module and a power supply module, and is characterized in that the output end of the rectification inverter bridge is connected to a quenching load coil through a quenching transformer and an intermediate-frequency plate; the voltage and current transmitting board samples voltage and current signals output by the rectification inverter bridge and sends feedback signals to the main control board. The main control board generates a gate control signal according to the feedback signal so as to control the rectification inverter bridge, and receives power supply state feedback from the quenching transformer and the intermediate frequency board; a quenching load coil of the quenching machine tool is located above the workbench and right faces the workpiece conveying path; the main control PLC is used for feeding back defective product signals to the industrial personal computer, receiving voltage, current and frequency set values issued by the industrial personal computer, outputting corresponding analog quantity control signals to the rectification inverter bridge and sending power given signals to the main control board, and the main control PLC controls the air cylinder to act at the preset position of the workpiece conveying track; and the industrial personal computer is used for recording quenching process parameters and participating in non-defective product / defective product judgment based on a threshold comparison algorithm.

The present invention relates to the field of cable detection technology, specifically a railway signal cable detection device, comprising two U-shaped plates, two supporting mechanisms for supporting a cable drum, a pulling mechanism for pulling the cable on the cable drum, and a guiding mechanism for redirecting the cable winding, and the two U-shaped plates are arranged parallel to each other. In the present invention, the cable drum loaded with cables and the empty cable drum are directly pushed onto the two supporting mechanisms, and then the two cable drums are lifted up by starting the two supporting mechanisms. The cable drum loaded with cables is stuck between the two supporting mechanisms due to its own weight, and then the position of the empty cable drum is adjusted so that the edges of the two cable drums are in contact, and the pulling mechanism is started to make the two cable drums rotate synchronously, so that the empty cable drum pulls out and rewinds the cable, and the outer layer of the pulled out cable is detected by the pulling mechanism, and then the pulled out cable can be limited by the guiding mechanism and wound onto the empty cable drum in sequence, so that it is convenient for users to rewind the cable and detect the damage of the cable surface.

The application discloses a low-noise floating current source, which comprises a power supply device, a current regulating device and a charging device. The power supply device comprises an energy storage device, which is used for providing electric energy required by the current source. The current regulating device is connected with the power supply device and is used for controlling the power supply device to output current to a load coil according to an external input signal. The charging device comprises a charging power supply and a charging circuit. The charging power supply is connected with the power supply device through the charging circuit. When a current output loop of the current regulating device is connected, the charging circuit is disconnected. When the current output loop of the current regulating device is disconnected, the charging circuit is connected, and the charging power supply is controlled to charge the power supply device. The charging device is connected with the current regulating device and the load coil in parallel. The load coil is used for forming a magnetic field to control atoms. The current output loop comprises the current regulating device and the load coil in series. The current output loop is connected with positive and negative electrodes of the energy storage device. The low-noise floating current source can be provided for cold atom or ultracold atom experiments.

Provided is an electrical connector (10) comprising supply side and load side housings (12) and (30 that are connectable by means of female socket (22) and male plug (32). The connector (10) includes an AC input (14) with input protection (18) for receiving an AC supply (16), a primary rectifier arrangement (20) configured to rectify the AC input (14) to a DC input, a female socket (22) having a single layer air-cored supply coil (24) sealed within the socket (22), and a capacitor arranged in series with the supply coil (24) to form a series resonant LC arrangement (26). Also included is a half-bridge resonant converter switched mode power supply arrangement (28) supplied from the DC input and driving the supply coil (24) to produce a symmetrical AC waveform, said converter configured with a switching frequency substantially matched to a resonant frequency of the series resonant LC arrangement. Power is transferrable to load coil (34) sealed within male plug (32), which includes a secondary rectifier arrangement (36) configured to rectify an AC waveform induced within the load coil (34) to produce a DC output for supply to a load (40).

This invention discloses a method and system for planning and controlling the power-optimal current curve of a DC-DC converter. The method includes the following steps: obtaining power system parameters and task objectives; based on the power system parameters, controlling the load coil current within a given time period. T The value increases from 0 to the target value. I The current rise phase, and from I The current decrease phase, from zero to zero, is divided into multiple sub-phases, and the power value for each sub-phase is planned. Based on the power value of each sub-phase, the current curve for each sub-phase is recursively generated based on the differential relationship between power and current, thus forming the current curves for the current rise and current fall phases. The current curves for the current rise and current fall phases are output to a DC-DC converter to achieve closed-loop control of the load current. This invention can reduce instantaneous power demand and optimize power distribution, thereby reducing the requirements for power system capacity and improving system economy and reliability.

The invention discloses a current proportion standard device based on quantum magnetic balance monitoring and a quantum magnetic balance method. The current proportion standard device based on quantum magnetic balance monitoring comprises a main iron core, a load coil, an induction coil, a quantum magnetic sensor and a feedback controller, and the induction coil is arranged on the main iron core and used for inducing magnetic flux change of the main iron core to generate induction voltage; the load coil is arranged at the load end of the induction coil and used for generating loop current according to the induction voltage; the quantum magnetic sensor is used for measuring a magnetic field generated by loop current; the feedback controller is used for adjusting the current of the auxiliary iron core with the amplitude of the magnetic field as a modulation input signal, and quantum magnetic balance adjustment is achieved.

Methods, systems, and devices for charging a wearable device are described. A charging system may include charging station with a resonant coil configured to generate an electromagnetic field based at least in part on a first alternating current. The charging system may include a wearable device with a load coil inductively coupled with the resonant coil of the charging station, configured to have a same resonant frequency as the resonant coil, and configured to generate a second alternating current based at least in part on the electromagnetic field generated by the resonant coil.

The utility model relates to the technical field of coil spring machining, in particular to a coil spring machining assembly machine which mainly comprises a discharging frame. The supporting frame is arranged on the outer side of the discharging frame; the electric box is arranged on one side of the discharging frame; the air source is arranged on one side of the blanking frame on the outer side of the electric box; the assembling assembly is arranged at the top end of the discharging frame and used for coil spring machining and assembling. The feeding assembly is arranged at the top end of the supporting frame and used for feeding the coil springs and the wheels; and the discharging assembly is arranged at the top end of the inner cavity of the discharging frame and used for discharging the finished products. The coil spring machining assembly machine is mainly characterized in that the variable-frequency vibration technology is adopted, on the premise that the size of the vibration disc is not changed, the vibration frequency can be adjusted to adapt to different loading capacities, in addition, the sound wave technology is combined, the sound wave emitter is arranged in the working area of the vibration disc, and the sound wave emitter is arranged in the working area of the vibration disc. The synergistic effect of sound waves and vibration is achieved, and therefore the material sorting and conveying efficiency is remarkably improved.

Apparatuses, systems, and methods for determining a load coil value for a load coil connected to an antenna. The system may include at least one adjustable inductive coil. The at least one adjustable inductive coil may have a plurality of turns. The at least one adjustable inductive coil may be connected to the antenna. The system may include an actuator. The actuator may be connected to the at least one adjustable inductive coil and may be configured to adjust at least one characteristic of the at least one adjustable inductive coil. The system may further include a user interface connected to the actuator and configured to control the actuator to adjust the at least one characteristic of the at least one adjustable inductive coil.

A power reception device 3 of a non-contact power supply device 1 has: a plurality of resonance circuits (21-1 to 21-n) which each have a reception coil 22 and a resonance capacitor 23 and receive power from a power transmission device 2 by resonance of the reception coil 22 with the resonance capacitor 23 with respect to AC power supplied to a transmission coil 12 of the power transmission device 2; and a load coil 24 which is disposed so as to be electromagnetically coupled with the reception coil 22 of each resonance circuit and outputs power received from the power transmission device 2 by each resonance circuit. The reception coil 22 of each resonance circuit and the load coil 24 are formed as wiring patterns in mutually different layers of a substrate 5 having a plurality of layers and are connected to each other so that one end of the reception coil 22 of each resonance circuit and one end of the load coil 24 have the same potential.

Methods, systems, and devices for charging a wearable device are described. A charging system may include charging station with a resonant coil configured to generate an electromagnetic field based at least in part on a first alternating current. The charging system may include a wearable device with a load coil inductively coupled with the resonant coil of the charging station, configured to have a same resonant frequency as the resonant coil, and configured to generate a second alternating current based at least in part on the electromagnetic field generated by the resonant coil.

The utility model relates to a reinforced fixing structure of a load coil outgoing line terminal, comprising a coil, two ends of which are respectively an incoming line terminal and an outgoing line terminal; one end of the fixed support plate is fixedly arranged on the coil; the fixed insulating part I is arranged between the wire outlet end and the fixed support plate; the fasteners penetrate through the wire outlet end, the first fixing insulating part and the fixing support plate, the fasteners are used for locking and fixing the wire outlet end, the first fixing insulating part and the fixing support plate, and second insulating parts are arranged between the fasteners and the wire outlet end and between the fasteners. According to the reinforced fixing structure of the load coil outlet terminal, the coil outlet terminal can be fixed through the arranged fixing support plate, the structural strength of the coil is improved, and the dynamic stability of the coil can be improved in a 50kA short-time large-current test; and the probability of safety accidents caused by jittering of the outgoing line terminal in the dynamic stability test is reduced.

The invention discloses a solid-state pulse power supply system of a field anti-configuration device and a time sequence control method of the solid-state pulse power supply system. The solid-state pulse power supply system comprises a multiplex load coil, and a bias branch, an ionization branch, an anti-field branch and a steady-state branch which are connected to the two ends of the coil in parallel. A main switch of each branch circuit adopts a solid-state switch element, natural follow current is realized by using a diode or a bidirectional structure in the branch circuit, and an independent follow current branch circuit is thoroughly canceled. Meanwhile, in cooperation with a microsecond time sequence control method, a steady-state branch circuit is conducted in advance to excite the reactor to form virtual impedance, and pure physical series voltage division protection is achieved. According to the invention, full time sequence multiplexing of the coil function is realized, the stray inductance, the size and the cost of the system are reduced, kHz-level repetition frequency operation can be supported, and the reliability and the stability of the field inversion configuration device are obviously improved.

The load stabilization power control method for an omnidirectional wireless power transmission system disclosed in the present invention is specifically as follows: S1, constructing an objective function and constraints; S2, obtaining the maximum value of the DC side input power according to the sampled DC voltage and DC current; S3, obtaining the minimum value of the DC side input power according to the sampled DC voltage and DC current; S4, calculating the maximum power received by the load coil according to the maximum value of the DC side input power and the minimum value of the DC side input power determined by S2 and 3, and further calculating the square sum of the mutual inductance at the position of the load coil; S5, calculating the magnitude of the synthetic current vector amplitude when the required load power is required. This method can ensure that the load can receive a stable and controllable power flow at any position near the omnidirectional WPT system, avoiding the transmission of power to areas without loads, thereby reducing unnecessary power transmission and improving the transmission efficiency of the system.