12 results about "Loading coil" patented technology

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.

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.

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.

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 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.

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 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 present invention discloses a miniaturized tunable three-dimensional antenna, comprising a distributed large capacitor structure, a magnetic ferrite material loaded coil structure, and a tunable feed circuit board. The distributed large capacitor structure comprises a plurality of metal plates stacked and inlaid in a vertical direction; in the magnetic ferrite material loaded coil structure, one end of the coil is connected to the top metal plate of the distributed large capacitor structure. The tunable feed circuit board comprises a plurality of microstrip transmission lines, each of which is provided with a disconnect portion for setting an adjustable capacitor / inductor or switching device. The distributed large capacitor structure is connected to a microstrip transmission line through a metal column; in the magnetic ferrite material loaded coil structure, the other end of the coil is connected to another microstrip transmission line. The antenna of the present invention can take into account a larger bandwidth through a tuning circuit, allowing the antenna to adjust the operating frequency within a certain frequency range and having a strong anti-interference ability.