32 results about "Ring circuit" patented technology

The utility model discloses a ring-shaped light source with a variable aperture, which comprises a ring-shaped switching base, a first detection opening, a second detection opening and a light source, an annular light source is arranged in the middle of the adapter base, the annular light source comprises a light source base and an upper cover plate which are buckled with each other, a second detection opening and a third detection opening are formed in the light source base and the upper cover plate respectively, and an annular circuit board is arranged between the light source base and the upper cover plate; a plurality of LED lamp beads are uniformly arranged on the annular circuit board; an adjustable diaphragm is arranged above the second detection opening, aperture adjustment of the second detection opening is achieved, and the axis of the first detection opening, the axis of the second detection opening, the axis of the third detection opening and the axis of the adjustable diaphragm are located on the same axis. The aperture of the annular light source can be changed through the adjustable diaphragm so as to meet the detection requirements of different product sizes, the adjustment is convenient, the cost is saved, and the detection efficiency is improved.

A knob device is disclosed. The knob device includes a base, an operating cover, a ring-shaped circuit board, a brake ring, a resistance element, a plurality of elastic elements, a plurality of conductive trigger elements, and a plurality of reset conductive elements. The base has an external conductive assembly. The operating cover is rotatably disposed on the base and is movable up and down. The ring-shaped circuit board is disposed in the base. The brake ring is fixed to the ring-shaped circuit board and connected to the operating cover. The resistance element is fixed to the base and abuts against the brake ring. The plurality of elastic elements are disposed on the brake ring or the ring-shaped circuit board. The plurality of conductive trigger elements are fixed to the bottom surface of the operating cover. The plurality of reset conductive elements are disposed on the brake ring. When the operating cover is pressed, the conductive trigger elements squeeze the elastic elements and push the reset conductive elements to contact the external conductive assembly. When the operating cover is released, the elastic elements push away the conductive trigger elements and separate from the reset conductive elements.

The utility model discloses a multifunctional control system based on a mechanical arm end tool, a flexible ring circuit board is provided with three buttons, an indicating lamp ring and a constant current source circuit, the circuit board is connected with a mechanical arm tool port, and an upper computer collects signals of the buttons through a control box to carry out linear motion, plane keeping and free motion. In the using process, the lamp ring is used for indicating the state of the mechanical arm, and the lamp ring can be directly dragged to the mechanical arm and can be stopped after the lamp ring is loosened only by pressing the key down corresponding operation beside the mechanical arm. The method is simple and safe, the action of operating the upper computer and the mechanical arm back and forth by a doctor is relieved, and the possibility of misoperation is also prevented.

The application provides a peak inductive reuse CML divide-by-two frequency divider circuit. The circuit comprises a first CML latch and a second CML latch, the two CML latches are interconnected in a divide-by-two frequency division mode; a first peak inductor, a second peak inductor, a third peak inductor and a fourth peak inductor, the four peak inductors are sequentially connected in a ring circuit; a non-inverting output end of the first CML latch is connected to a first common connection point of the first peak inductor and the fourth peak inductor; an inverting output end of the first CML latch is connected to a second common connection point of the second peak inductor and the third peak inductor; a non-inverting output end of the second CML latch is connected to a third common connection point of the first peak inductor and the second peak inductor; and an inverting output end of the second CML latch is connected to a fourth common connection point of the third peak inductor and the fourth peak inductor. The technical scheme of the application can improve the frequency division speed while reducing the chip area.

An oscillation apparatus includes: an oscillator including a resonator and a magnetic-field generating unit, the resonator including a loop circuit and a capacitor, the loop circuit including a first superconducting line, a first Josephson junction, a second superconducting line, and a second Josephson junction connected in a ring shape, the magnetic-field generating unit being configured to apply a magnetic field to the loop circuit, and the oscillator being configured to perform parametric oscillation; a read-out unit for reading out an internal state of the oscillator; and a filter configured to restrict transmission of a signal in a predetermined frequency band. A circuit in which the capacitor and the loop circuit are connected in a ring shape is connected to the read-out unit through the filter.

The present invention relates to the field of sensor technology and discloses a centrally perforated annular ceramic capacitor, wherein the annular capacitor is formed by fusing and sintering a ceramic base and a ceramic reaction membrane, and wherein the axes of the ceramic base and the ceramic reaction membrane are each provided with through holes to provide a mounting channel for the circuit elements to be assembled, so that the annular capacitor can be more conveniently integrated into the complex circuit of the temperature-pressure sensor in order to simplify the overall structure of the temperature-pressure sensor, including the circuit and sealing structure, in this way giving the temperature-pressure sensor a structure of automated assembly in order to reduce manufacturing and assembly costs;In comparison to the disc-shaped ceramic capacitor without a through-hole in the middle, the toroidal capacitor with the arrangement of the first ring circuit and the second ring circuit has a higher initial value and a greater amount of change, so that the toroidal capacitor has a wider measuring range and a finer pressure sensing gradation to improve the accuracy of pressure detection.

The utility model discloses a controller U1, a vibration sensor circuit, a receiving circuit, an LED lamp circuit, an antenna circuit and a power supply circuit, the vibration sensor circuit, the receiving circuit, the LED lamp circuit, the antenna circuit and the power supply circuit are respectively connected with the controller U1, and the LED lamp circuit and the vibration sensor circuit are respectively connected with the power supply circuit. The vibration sensor circuit comprises a diode D1, a vibration sensor T1, a capacitor C8, a resistor R6 and a resistor R8, the positive electrode of the diode D1 is connected with the power supply circuit, the negative electrode of the diode D1 is connected with one end of the vibration sensor T1 through the resistor R6, the other end of the vibration sensor T1 is connected with the signal input end P18 of the controller U1 through the resistor R8, and the other end of the vibration sensor T1 is connected with the ground GND through the capacitor C8. The device can monitor and record the daily activity amount in real time, and when poultry returns to the house at night, counting is accurate and efficient, and the endurance time is long.

The utility model discloses a radio frequency identification (RFID) near field antenna, which comprises an upper antenna layer, a substrate material layer, a metal connecting layer, a lower antenna layer and a chip, the upper antenna layer and the lower antenna layer are conductively connected through the metal connecting layer to form a continuous annular circuit structure, the antenna layer is annular, and the chip is arranged on the substrate material layer. The side end of the upper antenna layer is connected with a first parallel metal block through a first connecting line, the side end of the lower antenna layer is connected with a second parallel metal block through a second connecting line, the first parallel metal block and the second parallel metal block are vertically opposite and are separated through a substrate material layer, and a classic parallel plate capacitor structure is formed. Through the above mode, the antenna impedance is convenient to adjust, the antenna can be rapidly adapted to various RFID chips by adjusting the area of the antenna loop and the area of the parallel plate capacitor, the impedance matching problem of the antenna and the chip under the condition of small size is solved, and the reading distance of the small-size near-field antenna is improved.

The utility model is suitable for the technical field of photovoltaic power generation, and provides a sensor coil structure, a sensor and a photovoltaic system, and the sensor coil structure comprises a first annular circuit board; the magnetic core ring is arranged on the periphery of the first annular circuit board; the second annular circuit board is arranged on the periphery of the magnetic core ring; the sensor coil is wound on the first annular circuit board and the second annular circuit board; and the sensor coil adopts a crossed winding routing mode which is overlapped with the current direction. By means of the arrangement, the wire turns of the sensor coil are wound in a crossed mode, the distributed capacitance between the wire turns of the coil is effectively reduced, the detection bandwidth of the sensor is improved, and it is ensured that fault arc current in a circuit is reliably sensed.

The utility model discloses a multi-gear adjustable resistance potentiometer in the technical field of circuit components, and aims to solve the problem that the resistance value of a potentiometer in the prior art is continuously and linearly changed, so that the use requirements under multiple working conditions cannot be met. The device comprises a substrate and an electric brush rotating in the middle of the substrate, an inner ring wire copper sheet and two wiring copper sheets located on the two sides of the inner ring wire copper sheet are laid on the substrate, and an annular carbon film resistor and an annular circuit sheet are connected between the two wiring copper sheets. The annular circuit piece and the annular carbon film resistor can directly communicate with the two wiring copper pieces respectively, the radiuses of rings where the annular circuit piece and the annular carbon film resistor are located are different, and the annular circuit piece and the annular carbon film resistor are connected through a plurality of second wires. According to the utility model, the linear change resistance of the traditional potentiometer is converted into the multi-gear control resistance, and the adjustment of various gears can be realized through rotation, so that the requirements of customers in different application scenes are met.

The application discloses a substrate heater suitable for a molecular beam epitaxy device, which comprises a disc-shaped boron nitride pyrolytic base, a pyrolytic graphite coating arranged on the boron nitride pyrolytic base and a boron nitride pyrolytic protective coating arranged on the pyrolytic graphite coating, an inner ring circuit and an outer ring circuit are arranged on the pyrolytic graphite coating, and the inner ring circuit and the outer ring circuit are respectively led out by electrodes to realize independent heating. The application further discloses a manufacturing method of the heater, which comprises the following steps: S1, depositing a pyrolytic graphite coating on a boron nitride pyrolytic base; S2, processing a circuit pattern on the pyrolytic graphite coating; and S3, depositing a boron nitride pyrolytic protective coating on the pyrolytic graphite coating. The application has the advantages of high material purity, low outgassing rate, good mechanical property in a high-temperature environment, convenient flexible adjustment of the circuit design for different application scenes and the like, and the temperature uniformity is improved.

A time-multiplexed Ising computational machine, AWIM, comprising: a ring circuit comprising: an acoustic delay line for propagating a plurality artificial Ising spinwave pulses, an electronic phase-sensitive amplifier electrically connected to the acoustic delay line configured to cause phase degeneracy of the plurality of propagating artificial Ising spinwave pulses. The AWIM also comprises a measuring unit, interaction unit and an annealing and computing unit.

The application provides a method and device for preventing mis-trip of distance protection in a large distance interval ring, fault propagation records of interval ring circuit breaker nodes are collected to construct a mis-trip risk conduction matrix, and a fault path is tracked; wavelet decomposition is used to perform frequency spectrum analysis on the tracked path, and a key protection section is identified; impedance aggregation states and power transmission trajectories of each node are extracted, an energy distribution mode is established, and an impedance-power-energy coupling situation is formed; a time window is activated based on the coupling situation, a cooperative distance protection potential field is constructed through a communication protocol, a gradient scan is performed to construct a cooperative network, a multi-dimensional protection decision domain is generated through vector superposition, an optimal balance point is located through global search, a hierarchical protection setting sequence is generated, a cooperative adjustment strategy is formulated, a transition from passive to active is realized for the large distance interval ring protection, and intelligent mis-trip prevention is completed through real-time monitoring of dynamic impedance state identification of a transition critical point and triggering of the cooperative adjustment.

The invention belongs to the field of mask components, and provides a ring circuit and a low-random-number-source and low-area combinable hardware mask component. Wherein the loop circuit comprises a first register, a selector, an input operation combination circuit, a common operation combination circuit, a feedback operation combination circuit and an output operation combination circuit; the input operation combination circuit is used for processing an input signal and then is connected to a first input end of the selector; a signal output by the output end of the selector is processed by the common operation combination circuit and then is connected to the input end of the first register; a signal output by the output end of the first register is connected to the second input end of the selector after being processed by the feedback operation combination circuit; and the signal output by the output end of the first register is processed by the output operation combination circuit and then is used as the output of the loop circuit.

The invention discloses a broadband signal source system and a control method, and belongs to the technical field of radio frequency testing. The system comprises a reference source and a microwave module, the microwave module is provided with a control panel, and the control panel comprises a communication interface, a DCDC power supply and an FPGA; the reference source adopts a double-ring circuit structure, a low-noise integer ring generates a three-reference-point reference signal of an L wave band, the three-reference-point reference signal serves as a reference signal of a fractional phase-locked loop, and the reference signal is processed through switch filtering, power control and a pulse modulation circuit to form a low-noise signal with the frequency covering 0.1 GHz-20 GHz, KHz frequency resolution and 0.5 dB power precision. The control method comprises the steps that the upper computer sends a control instruction, the communication module receives and transmits the control instruction to the control panel, the control panel controls the reference source to generate a reference signal, the reference signal is processed to form a low-noise signal, and the control panel returns the state to the upper computer. According to the invention, the compatibility and expansibility are improved through modular design, the test cost and demand are balanced, and the demand of radio frequency component test for high-quality signals is met.

The utility model discloses a PCB electroless silver board welding ring circuit teardrop structure, and relates to the circuit board production field, the teardrop structure is symmetrically arranged between two adjacent welding rings, the two welding rings are connected through a wire, the teardrop structure is arranged on two sides of the wire, the teardrop structure comprises a wire connecting part and a teardrop part, the wire connecting part is connected with the teardrop part, and the teardrop part is connected with the wire connecting part. The tear dripping parts are arranged at the included angle position of the wire and the welding ring, the two ends of each tear dripping part are connected to the wire and the welding ring respectively, the wire connecting part is arranged on one side of the wire in parallel, the two ends of the wire connecting part are connected to the two tear dripping parts respectively, and the outer surfaces of the wire and the tear dripping structure are coated with anti-corrosion layers. And the circuit copper foil is prevented from being corroded by the galvanic effect in the silver melting production process to generate a thin neck phenomenon.

The invention relates to the technical field of radio frequency microwave circuits, and discloses a hybrid integrated duplexer with a frequency-selecting coupling output characteristic structure in waveguides, which comprises a first rectangular waveguide, a second rectangular waveguide and a pair of circuits manufactured on a dielectric substrate. The circuit on the substrate comprises a semicircular ring-shaped circuit and a first band-pass filter, and the first band-pass filter is connected with the semicircular ring-shaped circuit in a slot coupling mode; the semicircular ring circuit and the first band-pass filter are both located in the first rectangular waveguide. According to the invention, the first rectangular waveguide, the second rectangular waveguide, the semicircular circuit on the dielectric substrate and the first band-pass filter circuit are matched, and the filtering and frequency division functions of the core are directly built in the first rectangular waveguide, so that an integrated framework of coupling, namely filtering, is realized; while high isolation, low insertion loss and excellent out-of-band rejection are achieved, the overall circuit size is reduced, the overall structure is compact, and the use requirement is met.

The present application discloses a center-perforated annular ceramic capacitor. An annular capacitor is formed by combining and sintering a ceramic base and a ceramic reaction diaphragm, and axes of the ceramic base and the ceramic reaction diaphragm are both provided with through holes to provide an assembly path for circuit elements to be combined, and a structure of the temperature-pressure sensor as a whole is simplified, including a circuit and a sealing structure, thereby enabling the temperature-pressure sensor to have a structure of automatic assembly and reducing the production and assembly costs; the first annular circuit and the second annular circuit of the annular capacitor design have a higher initial value and wider capacitance variation compared with the central non-through hole disc-shaped ceramic capacitor, so that the annular capacitor has a wider measuring range and finer pressure sensing classification, thereby improving accuracy of pressure measurement.

The present disclosure provides a radio frequency apparatus, an antenna and an electronic device, and belongs to the field of communication technology. The radio frequency apparatus includes first and second dielectric substrates opposite to each other, first and second phase shifting structures between the first and second dielectric substrates; wherein the radio frequency apparatus further includes a first connection electrode and a second connection electrode; the first phase shifting structure and the second phase shifting structure each have a first end and a second end, the first ends of the first phase shifting structure and the second phase shifting structure are electrically connected to each other by the first connection electrode; the second ends of the first phase shifting structure and the second phase shifting structure are electrically connected to each other by the second connection electrode, to form a ring circuit structure.

A multi-node server includes a plurality of nodes. Each of the nodes includes a power supply, a transmission circuit, and a control circuit. The power supply is configured to provide a power source. The transmission circuit is configured to transmit the power source and a power status signal to the transmission circuit of the two adjacent nodes, and receive the power source and the power status signal of the two adjacent nodes. The control circuit is configured to control the transmission circuit and the power supply to transmit the power source and the power status signal to the transmission circuit of the two adjacent nodes. The transmission circuit of each of the nodes are connected in series as a ring circuit. The number of the nodes is N, the power of the power supply is Ps, the total power budget of the multi-node server is Pb, and Ps=Pb / (N−1).

The invention belongs to the technical field of motors, and particularly relates to a high-power-density spliced frameless motor stator and a manufacturing method thereof.The high-power-density spliced frameless motor stator comprises a plurality of spliced stator units which are spliced in the circumferential direction, each unit comprises a stator iron core splicing block and a single-tooth winding, and the iron core splicing block is laterally provided with a concave-convex matched positioning connection structure; the single-tooth windings are converged and interconnected through the annular circuit board, splicing gaps and winding gaps are filled with high-thermal-conductivity insulating potting layers, and during manufacturing, splicing block machining, single-tooth winding, accurate positioning and splicing, laser welding, circuit board integration and vacuum potting are sequentially completed. By adopting the split type stator structure and the single-tooth winding process, the physical space limitation of an integral stator notch is broken, and the slot fullness rate of a stator winding is remarkably improved, so that the equivalent resistance and copper loss of the winding are reduced, and the power density and the torque density of the motor are fundamentally improved.

The application discloses a digital entropy source integrated circuit based on a multi-loop Boolean oscillation ring, and the integrated circuit comprises a multi-loop Boolean oscillation ring circuit and an entropy sampling circuit, wherein the multi-loop Boolean oscillation ring circuit is used to generate a random Boolean oscillation output signal and comprises N basic oscillation units; the entropy sampling circuit is used to sample the oscillation signal generated by the multi-loop Boolean oscillation ring circuit to obtain an original random sequence, and comprises N D flip-flops arranged in parallel and a two-input XOR gate chain connected with the output ends of the D flip-flops, wherein the two-input XOR gate chain comprises N-1 two-input XOR gates; wherein the number of the basic oscillation units is consistent with the number of the D flip-flops, and N1. The more the number of the basic oscillation units is, the more the feedback loops are, and the more complex and unpredictable the oscillation behavior is; and in actual application, the number of the basic oscillation units can be adjusted according to specific requirements.

The invention provides a liquid lens, a lens device and a manufacturing method of the liquid lens. The liquid lens comprises two transparent circuit boards, an annular circuit structure, light-transmitting liquid and a pump. The two transparent circuit boards are arranged opposite to each other, each transparent circuit board is provided with an inner surface and an outer surface opposite to the inner surface, and the inner surface is located between the outer surfaces of the two transparent circuit boards. The annular circuit structure is connected with and surrounds the two transparent circuit boards, wherein an accommodating space is formed between the inner surfaces of the two transparent circuit boards. The light-transmitting liquid has the refractive index larger than 1 and fills the containing space, and the pressure of the light-transmitting liquid in the containing space is used for enabling the two transparent circuit boards to deform so as to enable the outer surfaces to form curved surfaces. The connecting piece connects a plurality of liquid lenses to form a lens device. According to the liquid lens and the lens device, the focal length can be adjusted, and the placing space of the lens can be reduced.

The application provides an anti-ringing circuit and a DC-DC converter. The anti-ringing circuit is applied to the DC-DC converter, and comprises multiple-stage anti-ringing branches and a matching branch. The multiple-stage anti-ringing branches are connected in parallel with each other, and the matching branch is connected in series with the multiple-stage anti-ringing branches connected in parallel at both ends of an inductor of a main circuit of the DC-DC converter. Each anti-ringing branch comprises a switch tube and a resistor connected in series. The matching branch comprises a matching switch tube. When the switch tube in any one-stage or multiple-stage anti-ringing branch is turned off, the resistor in the one-stage or multiple-stage anti-ringing branch is disconnected with the inductor. When the switch tube in any one-stage or multiple-stage anti-ringing branch and the matching switch tube are turned on, the resistor in the one-stage or multiple-stage anti-ringing branch is connected in parallel with the inductor. The application can flexibly adjust the current in each anti-ringing branch.

The application relates to the refrigeration technical field and provides a high-efficiency ice storage system, which comprises a compressor, the bottom of the compressor is connected with an ice storage tank, the top of the compressor is connected with an evaporative condenser, the evaporative condenser is communicated with one end of the ice storage tank, and the compressor and the evaporative condenser form a ring circuit; the ice storage tank comprises a plurality of ice storage coil pipes, the bottom of the ice storage tank is connected with a plate heat exchanger at both ends, and an ice melting pump is arranged on the plate heat exchanger; an evaporator; the evaporator is arranged on one side of the compressor, and the evaporator is connected with the compressor and the evaporative condenser at both ends; an air conditioner terminal device; the air conditioner terminal device comprises a ring circuit, a freezing pump is connected to the air conditioner terminal device, and the ring circuit of the air conditioner terminal device is connected with the evaporator. The ice storage system adopts a condenser+cooling water pump+cooling tower mode on the source side, which increases the conveying energy consumption on one hand and increases the condensing temperature and reduces the refrigeration efficiency due to multiple heat exchanges on the other hand.

The present invention provides a semiconductor device capable of stably counting pulses output from an even-stage ring circuit. [Solution] The semiconductor device includes a pulse input circuit 10 into which a first pulse from an even-stage ring circuit is input to each of two pre-stage counters, each comprising a flip-flop that constitutes a pre-stage counter having different holding states; an edge detection circuit 20 that detects the edges of the outputs of the two pre-stage counters and outputs a second pulse having a predetermined pulse width that is larger than a predetermined value based on the edge; and a counter circuit that includes a post-stage counter into which the second pulse is input. The edge detection circuit is configured to output a second pulse or a step-shaped signal if the pulse width of the first pulse is smaller than a predetermined value.

The invention discloses a capacitor and entity composite key and an identification method, the key comprises a printed circuit board and a metal metal dome, the printed circuit board is provided with an outer ring circuit and an inner ring circuit which are electrically isolated from each other, and the metal metal dome covers the outer ring circuit and the inner ring circuit. The outer ring circuit is electrically connected to a capacitance detection pin of the main control chip, and the inner ring circuit is connected to a grounding end; the metal dome is electrically connected with the outer ring circuit in a normal state; the main control chip sets a key detection period; in the capacitance sampling mode, capacitance value changes of the pins are detected, whether a touch event occurs or not is judged, and a touch signal is reported; in the level sampling mode, whether a pressing event occurs or not is judged, and a pressing signal is reported; according to the method, on the premise that hardware cost and circuit complexity are not remarkably increased, manual intentional operation and external mistaken touch are effectively distinguished in a software and hardware combination mode, meanwhile, a touch pre-detection function is newly added, and the man-machine interaction dimension is enriched.

The utility model relates to the technical field of motors, and provides a servo motor with a reactor, which comprises a motor main body, a heat dissipation shell welded on one side of the motor main body, a protective shell fixedly connected on one side of the heat dissipation shell through screws, and a main circuit which is an annular circuit. A main winding, a secondary winding, a normally-closed contact thermal protector and a running capacitor are arranged in the main circuit, and through the arrangement of structures such as the normally-closed contact thermal protector, the normally-closed contact thermal protector can intelligently cut off the circuit under the conditions that the current is unstable and the internal temperature is increased, so that the running capacitor is switched off; potential damage to circuit elements caused by abnormal current fluctuation is effectively prevented, meanwhile, the electric reactor serves as a standby current path to be activated, the change range of the current is limited through the impedance characteristic of the electric reactor, it is ensured that the current is maintained at the safe and stable level, and an additional protection barrier is provided for the circuit.

The application discloses a circuit board structure, a furnace head and an electric gas stove. The circuit board structure comprises a circuit board main body; a first conductive ring and a second conductive ring divide the circuit board main body into an outer ring circuit board, a middle ring circuit board and an inner ring circuit board; the first conductive ring and the second conductive ring are electrically connected with two poles of a power supply respectively; a plurality of first pin holes are arranged on the outer ring circuit board, and any first pin hole is electrically connected with the first conductive ring; the middle ring circuit board is provided with a plurality of second pin holes, and any second pin hole is electrically connected with the second conductive ring; the inner ring circuit board is provided with a plurality of third pin holes and a plurality of fourth pin holes, any third pin hole is electrically connected with the first conductive ring, and any fourth pin hole is electrically connected with the second conductive ring. According to the application, the arrangement of the circuit board is changed, a part of plasma needles is connected with a positive pole of the power supply, and another part of plasma needles adjacent to the part is connected with a negative pole of the power supply, so that a stable plasma flame is generated.

The invention discloses a mobile machine tool having an electric motor and a controller, the electric motor having an integer number of stator windings, characterized in that the electric motor contains the same number of contacts as stator windings, which contacts are connected alternately in a ring circuit, each contact being individually electrically connected to a connection of the controller which is assigned to said contact, and the controller being configured to apply electrical current in phase in pairs to two contacts located opposite one another in the ring circuit.