17 results about "Linear element" patented technology

The invention relates to a holder (100) for a mobile device (200). Conventional fixtures that are to receive a plurality of different devices are complex and expensive due to the large variation in the width of the devices. By providing rotatable edge clips (110, 115) together with one or more serpentine-shaped tension resistors (120), a region with non-linear resistance is provided to separate the first edge clip (110) and the second edge clip (115). This has the advantage of a smaller rate of increase in the separation resistance at larger separation distances compared with the use of linear elements, such as helical springs.

Various examples are provided related to overcurrent protection for composite power semiconductor switches comprising a high voltage power switch in series with a low voltage non-linear element. In one example, a system includes a blocking diode connected to a sensing node of a composite switching device; a resistor connected in series with the blocking diode and to a desaturation detection input of a gate driver circuit; and a blanking capacitor connected between the desaturation detection input and a common voltage reference of the gate driver circuit. The gate driver circuit can detect a short circuit condition based upon a sensed voltage at the desaturation detection input. In another example, a method includes sensing a voltage on a blanking capacitor, the voltage provided from a sensing node of a composite switching device via a blocking diode and a resistor, and detecting a short circuit condition based upon the sensed voltage.

The invention relates to a quantum system (1) for stabilizing Bose quantum bits, said system comprising: an instruction circuit (5) comprising three microwave sources (11, 13, 15), and a nonlinear superconducting quantum circuit (3) comprising a four-wave hybrid nonlinear element (7) and a resonant section (9), the quantum circuit (3) has a first mode having a first resonant frequency and a second mode having a second resonant frequency. The quantum circuit (3) is arranged to design a Hamiltonian H expressed as, by dissipation in the second mode, produce an effective dissipater that stabilizes the Bose quantum bits. To this end, the first microwave source (11) delivers frequency-equal radiation, the second microwave source (13) delivers frequency-equal radiation, and the third microwave source (15) delivers frequency-equal radiation to drive the second mode.

This invention proposes a clamping device, a clamp applicator, and a clamp delivery monitoring method. The clamping device includes a clamping chamber, clamps to be delivered located between two adjacent first elastic clamping positions within the clamping chamber, and a first communication interface for communication with a handle. When the clamps to be delivered are not under the action of the push clamp, each clamp can move between a first position and a second position. Each clamp is equipped with a magnet. When the clamps to be delivered are not under the action of the push clamp, the magnet of each clamp can move from the first position to the second position. A Hall effect linear element is provided on the clamping chamber base plate at the center of the movement trajectory of each clamp's magnet from the first position to the second position. All Hall effect linear elements are electrically connected to the first communication interface. This provides a structural basis for clamp delivery monitoring.

A method of measuring self-Kerr in a physical quantum system configured to host a bosonic code qubit, comprises the following operations: 1) providing a physical quantum system configured to host a bosonic code qubit, said physical quantum system comprising (i) a quantum circuit comprising oscillators hosting a buffer or readout mode and a memory mode, and a non-linear element coupling the buffer or readout mode to the memory mode, and (ii) a control circuit configured to apply one or more control signals to the quantum circuit to stabilize the bosonic code qubit in the memory mode and further configured to receive measurement signals from at least the buffer or readout mode, 2) define a coherent state (α) for the memory mode, and, for each of a plurality of coherent state amplitudes and each of a plurality of durations (t), a. prepare, using the control circuit, said coherent state (α) in the memory having one of said plurality of coherent state amplitudes, b. wait for a period of time having one of said duration (t), c. apply, using the control circuit, one or more control signals to said quantum circuit such that the quantum circuit is in a resonant regime | i * ω a - ω b | = j * |ω cs | if said one or more control signals comprise an AC component having an angular frequency |ω cs | or | i * ω a - ω b | = 0 if said one or more control signals comprise only DC components, resulting in an interaction, mediated via said non-linear element, in said physical quantum system which results in a Hamiltonian having a leading term of the general formula Hi,(j,0) α ξ(j,0) (α†)i b + h.c...., where α is the annihilation operator of said memory mode, i is an integer superior or equal to 1, ω a is the angular frequency of the memory mode whilst the quantum circuit is in the resonant regime, j is an integer superior or equal to 1, b is the annihilation operator of the buffer or readout mode, ω b is the angular frequency of the buffer or readout mode whilst the quantum circuit is in the resonant regime, and ξ(j,0) is the strength of said interaction, and d. simultaneously to operation 2)c., using the control circuit, receiving measurement signals comprising at least the mode phase and / or mode amplitude of the buffer or readout mode, 3) derive an effective detuning or a decayed mode amplitude for each coherent state amplitude, by fitting of the measurements of operation 2)d. which are associated with said each coherent state amplitude, 4) derive at least one of self-Kerr coefficients, stark-shift detuning, and memory dephasing rate from the plurality of effective detunings or decayed mode amplitudes of operation 3) by fitting of a function of the absolute magnitude squares of coherent state amplitude in said memory mode.

Non-linear superconducting circuit for stabilizing at least one cat qubit, the non-linear superconducting circuit comprising: a four-wave mixing non-linear element (7); a first resonant portion (29); and a second resonant portion (31) which is coupled to the first resonant portion via the four-wave mixing non-linear element; wherein the first resonant portion, the second resonant portion, and the four-wave mixing non-linear element are configured together to provide a first physical oscillatory mode (a) with a first resonant frequency for hosting a cat qubit and a second physical oscillatory mode (b) with a second resonant frequency which is more dissipative than the first physical oscillatory mode (a); and wherein at least one of the first and second resonant portions comprises a tunable inductor (8) and a capacitor (43,39) such that at least one of the first and second resonant frequencies are tunable with the inductance of the tunable inductor.

The invention relates to producing time information. Particularly, the invention relates to an optical apparatus and an optical method for producing time information. The optical apparatus comprises a pump pulse generator, a supercontinuum probe generator, a nonlinear element, wherein the nonlinear element is configured to produce a modulated supercontinuum caused by cross-phase modulation between the pump pulses and the supercontinuum probe, and a spectral analyser.

The invention belongs to the technical field of vibration reduction of vibrating screens, and particularly relates to an elastic suspension damping system of a vibrating screen and a dynamic parameter analysis method of the elastic suspension damping system. The elastic suspension damping mechanism is connected between the whole screen vibration part and the whole screen base in a suspension manner; the elastic suspension damping mechanism comprises a supporting spring and a damper. According to the system, the damping element is introduced into the elastic suspension damping system, due to the addition of the damper, an original single linear element or a single nonlinear element is added into a composite element formed by combining the elastic element and the damping element, and the vibration reduction effect of the system is greatly improved.

An analog neural network is described comprising: a plurality of layers connected to form an electrical circuit having an input and an output, the input suitable for receiving an electrical signal corresponding to an input example and the output corresponding to an output of the neural network. Each layer comprises elements connected together, where the elements comprise: at least one programmable electronic element representing a weight of the neural network; at least one non-linear element; at least one amplifier block; an error element. Each layer also comprises a measurement element for measuring a change in an electrical signal across the error element.

The invention relates to a holder (100) for a mobile device (200). Due to the wide variation of devices, conventional mounting devices that seek to hold many different devices have become complex and expensive. By providing rotatable edge clamps (110, 115) along with one or more serpentine extension resistances (120), a region of nonlinear resistance is provided to separate the first edge clamp (110) and the second edge clamp (115). This has the advantage of a lower rate of increase in separation resistance at greater separation distances compared to using a linear element, such as a coil spring.

The invention discloses a harmonic suppression and unbalanced load compensation method for a parallel active power filter. The method comprises the following steps: firstly, establishing a noise model containing various noise sources and statistical characteristics thereof; then combining the noise model to construct an active power filter containing noise interference; then selecting a self-adaptive neural network algorithm, wherein the self-adaptive neural network algorithm comprises a recursive least square method self-adaptive linear element and a Kalman filtering self-adaptive linear element; an active power filter control strategy adopting an adaptive neural network algorithm is established; and finally, based on the adaptive neural network algorithm, harmonic current detection and load unbalance current compensation are carried out, a recursive least square adaptive linear element is adopted to extract harmonic current, and a Kalman filtering adaptive linear element is adopted to carry out unbalance compensation. According to the method, the harmonic suppression and load imbalance compensation capabilities of the parallel APF are improved by using a noise condition adaptive neural network technology.

The invention discloses an energy-frequency integrated selective surface with adjustable frequency band characteristics. The energy-frequency integrated selective surface sequentially comprises a top-layer structure unit, a middle-layer structure unit and a bottom-layer structure unit from top to bottom, the top-layer structure unit and the bottom-layer structure unit are the same or symmetrical in structure and are loaded with nonlinear elements such as diodes and the like; the top layer structure unit and the bottom layer structure unit form a cascade resonance structure through the middle layer structure unit. The interlayer electromagnetic coupling strength is changed by adjusting the thickness of an air layer between the top layer / bottom layer structure unit and the middle layer structure unit, so that the device is switched between a dual-frequency band-pass mode and an ultra-wideband flat band-pass mode; meanwhile, by means of impedance changes of the nonlinear element under different powers, low-loss transmission of signals is allowed under low power, and strong reflection of electromagnetic waves is achieved under high power. According to the invention, the problem that the traditional single structure is difficult to meet the requirements of multi-band reconstruction and high-power protection at the same time can be solved.

The invention relates to the technical field of transformers, in particular to a transformer current rising experiment method, which comprises the following steps of: 1, constructing an equivalent inductance model according to the working frequency, the number of turns, the magnetic core resistance, the leakage inductance resistance and the maximum current response of a transformer; constructing an equivalent capacitance model according to the total impedance of the transformer and the working frequency of the transformer; 2, applying an initial current response according to a rated current response of the transformer, calculating a capacitor current response, and adding a nonlinear element to obtain a nonlinear voltage response; 3, updating the capacitor current response based on the nonlinear voltage response to obtain an updated capacitor current response; step 4, performing asynchronous frequency modulation, and updating the voltage response to obtain an updated voltage response; and calculating an experiment result based on the updated voltage response. According to the invention, accurate simulation and test of the high-voltage large-capacity power electronic power conversion equipment are realized, so that the efficiency and feasibility of equipment performance verification are improved.

The method can be applied to a quantum system having a non-linear element coupled to a resonator, the non-linear element having a quantum state changeable between a plurality of quantum states and the resonator having a resonance frequency. The method can include driving the resonator; the resonator resonating at a first frequency in response to said driving the resonator; and simultaneously to said driving the resonator, driving the non-linear element at the first frequency.

In order to take advantage of the characteristics of a display device including an oxide semiconductor, which has excellent operation characteristics and can be manufactured at low temperatures, a protection circuit or the like having an appropriate structure is needed.SOLUTION: A protective circuit is formed using a non-linear device 105a including a gate insulating layer 102 covering gate electrodes 101, first oxide-semiconductor layers 103 overlapping with the gate electrodes 101 over the gate insulating layer 102, and a pair of first and second wiring layers 38 and 39 whose end portions overlap with the gate electrodes over the first oxide-semiconductor layers 103 and in which a conductive layer 104a and a second oxide-semiconductor layer 170a are stacked. When a junction of oxide-semiconductor layers having different physical properties is formed over the gate insulating layer 102, stable operation can be performed as compared to a Schottky junction, junction leakage can be reduced, and characteristics of a non-linear device 170a can be improved.SELECTED DRAWING: Figure 5

There is provided a method for resetting an arbitrary state, hosted in a quantum system, to the vacuum Fock state or a coherent state, wherein the quantum system comprises: (I) at least one resonant portion configured to have a first mode having a first resonant frequency and wherein the arbitrary state is hosted in the first mode, (II) a non-linear element coupled to the at least one resonant portion so as to non-linearly couple to the first mode, and (III) one or more signal generator(s) coupled to the at least one resonant portion and / or to the non-linear element and configured to input control signals to physically stabilize a cat qubit subspace in the first mode having a cat phase angle. The method comprises: (i) physically stabilizing for a first period of time, with the one or more signal generator(s), a first cat qubit subspace having a first cat phase angle and first cat size ΙαΙ2, wherein α is a first amplitude which is the amplitude of the superposed coherent states Ι ± α > defining the first cat qubit subspace (702); (ii) after the first period of time, physically performing for a second period of time, with the one or more signal generator(s), a first parallel displacement drive by inputting electromagnetic radiation having a first phase substantially equal with the first cat phase angle, a frequency substantially equal to the first resonant frequency, and a first displacement amplitude greater than or equal to the first amplitude (704); (iii) after the second period of time, physically stabilizing for a third period of time, with the one or more signal generator(s), a second cat qubit subspace having a second cat phase angle which is substantially equal to the first cat phase angle and second cat size ΙβΙ2, wherein β is a second amplitude which is the amplitude of the superposed coherent states Ι ± β > defining the first cat qubit subspace, such that a coherent state Ιβ> with the second amplitude β is stabilized in the first mode (706). There is also provided a corresponding quantum processor, a computer program product, and a computer-readable medium.