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118results about How to "Reduce electromagnetic interference" patented technology

Flexible flame-retardant indoor photoelectric composite cable with multi-layer composite compression-resistant structure

The utility model relates to a flexible flame-retardant indoor photoelectric composite cable with a multilayer composite compression-resistant structure, which comprises a central supporting unit, a cable core assembly, a composite reinforcing layer, a flame-retardant layer and an outer sheath which are sequentially arranged from inside to outside, the adjacent elastic rods are bonded through hot melting to form a 90-degree orthogonal supporting structure, the cable core assembly comprises optical fiber units and power conductors which are symmetrically distributed in four quadrants of a central supporting unit, one optical fiber unit and one power conductor are arranged in each quadrant, and the four macromolecule elastic rods arranged in a cross shape form a supporting framework. A stable internal supporting structure is provided for the whole optical cable, it is ensured that the optical cable structure is not prone to deformation in a complex environment, the section of the macromolecule elastic rod is fan-shaped, the containing groove is filled with thixotropic silica gel, the buffering and damping effect is further enhanced, internal assemblies can be better protected, and the optical cable is suitable for different installation and use environments.
Owner:JIANGSU YOUMI INTELLIGENT TECH CO LTD

Ceramic tube shell and packaging structure

The utility model discloses a ceramic tube shell and a packaging structure. The ceramic tube shell comprises a ceramic base body and a working assembly. The ceramic base body comprises a base and an enclosure part, the enclosure part is installed on one side of the base, an installation space is defined by the enclosure part and the base, the installation space is used for containing a chip, and the base is provided with a step located in the installation space; the working assembly comprises a power supply layer, a bonding layer, a signal layer and a back PAD layer, the power supply layer is arranged in the enclosure part, the bonding layer is arranged on the surface of the step, the signal layer is arranged in the base and located on the side, away from the power supply layer, of the bonding layer, and the back PAD layer is located on the side, away from the enclosure part, of the base. According to the scheme, the adverse effect of electromagnetic interference of the power supply layer on signal transmission can be effectively reduced, and the small size of the ceramic tube shell can be conveniently realized.
Owner:WUHAN SHANWAN NEW CERAMIC MATERIALS CO LTD

Packaging structure and method of optical sensor and electronic equipment

The invention relates to the technical field of sensor packaging, and discloses a packaging structure and method of an optical sensor and electronic equipment, and the packaging structure comprises a lead frame, and a radio frequency main control chip and an optical sensor chip which are fixed on the lead frame; the lead frame comprises a first base island, a second base island, a radio frequency antenna and a pin group, and the first base island and the second base island are electrically isolated from each other; the radio frequency main control chip is mounted on the first base island, the surface, deviating from the light-sensitive surface, of the optical sensor chip is mounted on the second base island, and a radio frequency transceiving pin of the radio frequency main control chip is connected with the radio frequency antenna; a data transmission pin of the optical sensor chip is connected with a corresponding function pin of the radio frequency main control chip; and the radio frequency main control chip and the optical sensor chip are respectively connected to corresponding pins in the pin group. According to the invention, the radio frequency path can be shortened, the anti-interference performance is improved, and high-integration low-cost packaging is realized.
Owner:GUANGDONG GUOFENG SEMICON CO LTD

An electromagnetic interference resistant device using isolated ground handling

This invention belongs to the field of electromagnetic interference (EMI) suppression technology, and proposes an EMI suppression device using isolated grounding. It includes shielded modules that act as interference sources or receivers for each other, and a shielded transmission circuit for signal transmission. The shielded modules include camera mechanisms, modules that easily generate high-frequency signals, and modules that easily generate large currents. The shielded transmission circuit includes transmission cables connecting each shielded module. This device is simple, easy to implement, and easy to operate. It mainly utilizes the conductivity of metallic materials to transmit external electromagnetic interference, which is easily received by the shielded modules and the transmission circuit cables, to the ground through a conductive layer. Simultaneously, the transmitted circuit signals are also protected, thus preventing electromagnetic interference to the shielded modules and the transmission circuit cables, allowing the equipment to maintain normal operation.
Owner:HENAN COSTAR GRP CO LTD

Motor FPC ultrathin cover film processing technology and device

The invention relates to the technical field of FPC ultra-thin cover film processing, and discloses a motor FPC ultra-thin cover film processing technology and device.The motor FPC ultra-thin cover film processing device comprises a fixing base, an unwinding assembly, a guide roller set, a conveying assembly, a laser cutting assembly and an attaching assembly and further comprises a bulldozing mechanism arranged on the conveying assembly; a first electric push rod drives a push roller to press down and fit an ultrathin cover film, a second electric push rod is linked with a synchronous rod to drive the push roller to roll directionally to flatten and smooth stubborn deformation which cannot be eliminated by a guide roller set, it is ensured that the ultrathin cover film is flatly fit with a workbench, meanwhile, a flattening reference is provided for laser cutting, meanwhile, a foundation is built for follow-up fitting, and the production efficiency is improved. And virtual adhesion and poor contact caused by the fact that the periphery of the opening cannot be compacted are prevented, the high-precision machining requirement of the ultra-thin cover film is met, and compared with a cover film with the conventional thickness, the ultra-thin cover film can reduce signal loss and electromagnetic interference in cooperation with the ultra-thin cover film.
Owner:TELECONIX INC

Rectangular view field design method for ultraviolet non-line-of-sight communication receiving end and application of rectangular view field design method

The invention provides a rectangular field-of-view design method for an ultraviolet non-line-of-sight communication receiving end and application thereof, and belongs to the technical field of wireless optical communication, the method comprises the following steps: pre-determining the center distance length of a light shield and the upper field-of-view angle, the lower field-of-view angle, the left field-of-view angle and the right field-of-view angle of a rectangular receiving field-of-view; based on the center distance length, the upper view field angle, the lower view field angle, the left view field angle, the right view field angle and the width and length of the rectangular light sensing surface, calculating structural parameters of a light shield used for generating the rectangular receiving view field; wherein the structural parameters comprise the upper and lower edge lengths, the left and right edge lengths and the position of a vertical center point of a larger rectangular opening of the light shield. Through the design of the rectangular view field and the accurate matching of the rectangular light-sensitive surface, the photon receiving efficiency is remarkably improved, stray light and electromagnetic interference are effectively inhibited, and thus the signal-to-noise ratio of weak light signal detection and the system sensitivity are improved.
Owner:CHINESE PEOPLES LIBERATION ARMY INFORMATION SUPPORT CORPS ENGINEERING UNIVERSITY

Smooth brushless actuator

The application discloses a stable brushless actuator, which comprises a rear shell, a front shell, a stator assembly and a rotor assembly. A balance rotating joint is arranged on the rotating shaft end of the rotor assembly and in the internal cavity of the rear shell. A magnet is arranged on the other end of the rotating shaft. A functional circuit board is arranged on the stator assembly and close to the magnet. A lower bearing is arranged on the rotating shaft and close to the magnet. The balance rotating joint is in a "Z" shape structure. An upper bearing is arranged on the head of the balance rotating joint. The application adopts electronic commutation and is in a brushless mode. The application has the characteristics of lower noise, lower electromagnetic interference, more accurate control, simpler installation, more convenient maintenance and the like. The balance rotating joint arranged on the rotating shaft end strengthens the balance degree and stability of the rotating shaft. Therefore, the application has a longer service life and higher working efficiency.
Owner:浙江致森电控科技有限公司

Control method of voltage converter and energy storage system

PendingCN121966292AReduce the number of starts and stopsavoid large fluctuationsDc-dc conversionElectric variable regulationVoltage converterPower controller
The embodiment of the invention provides a control method of a voltage converter and an energy storage system. The method comprises the following steps: a controller obtains accumulated required power of any control period; the controller judges whether the accumulated required power is greater than or equal to a set sending power threshold value; if the controller judges that the accumulated required power is greater than or equal to a sending power threshold value, the controller sets the output power as the accumulated required power; if the controller judges that the accumulated required power is smaller than the sending power threshold value, the controller sets the output power as a set value, and the set value is smaller than the sending power threshold value; the controller controls whether the voltage converter works or not according to the output power. According to the embodiment of the invention, the stability of power supply is improved, and the electronic equipment connected to the energy storage inverter is protected; generation of electromagnetic interference is reduced, and electromagnetic compatibility of the system is improved.
Owner:SHENZHEN HELLO TECH ENERGY CO LTD

Gated smart home system

The utility model provides a gated intelligent household system, and belongs to the technical field of intelligent household. Comprising a door control main control board, an intelligent door lock, an intelligent home linkage chip, an intelligent home gateway and a plurality of intelligent home sub-devices, the intelligent door lock is used for identifying unlocking operation of a user; the intelligent home linkage chip is arranged in the door control main control board, and the intelligent home linkage chip can receive an unlocking signal of the intelligent door lock and a signal of a shortcut key on a door control rear screen panel and generate a corresponding instruction data packet according to the received signal. According to the utility model, the intelligent household linkage chip is arranged, and the intelligent household linkage chip supports a wireless communication protocol of one of WIFI, Bluetooth or Zigbee, so that the intelligent household linkage chip can stably communicate with the intelligent household gateway, the linkage function of the door control and other household equipment is enriched, and the purpose of convenient and fast household automatic control is realized.
Owner:XIKA INTELLIGENT TECHNOLOGY (SHANGHAI) CO LTD

A device for enabling wireless communication between underground manholes and the surface.

This invention discloses a device for wireless communication between underground manholes and the ground, relating to the field of urban underground infrastructure monitoring technology. It solves the problem that manhole covers and frames are mostly made of metal, which strongly shields electromagnetic waves, affecting data acquisition by monitoring equipment inside the manhole. The key technical points include: a manhole frame support: an open-frame structure adapted to the manhole cover; an adjustment component on the support to adjust the diameter of the support to accommodate differences in the manhole cover's diameter; and an equipment support: located on the support, forming a downwardly protruding load-bearing structure. The effect is that by fixing the transmitting antenna in the gap between the manhole cover and frame, the electromagnetic shielding effect of the cover and frame is avoided, significantly enhancing signal strength compared to inside the manhole, ensuring normal data communication between the monitoring equipment inside the manhole and the ground.
Owner:BEIJING TEXT NETWORK TECH CO LTD

External kitchen and bath equipment power-off protection wire

The utility model discloses an external kitchen and bath equipment power-off protection wire, which comprises a protection device shell, the outer walls of the upper end and the lower end of the protection device shell are respectively provided with a reinforcing assembly, and the upper end of the protection device shell is connected with a four-core wire in a reinforcing and inserting mode through the reinforcing assemblies. A connector is inserted into the lower end of the protection device shell in a reinforcing mode through a reinforcing assembly, a filling block is installed in the protection device shell, and a PCB capacitor is further arranged in the protection device shell; through the design of the reinforcing assemblies, connection between the four core wires at the top end of the protection device shell and the connector at the bottom end is firmer, the reinforcing assemblies can ensure stable connection between the four core wires and the connector through cooperation of sliding blocks, clamping plates and rubber soft cushions, and the design effectively prevents the problem of poor contact caused by infirm connection; especially in a humid environment, potential safety hazards such as electrical fire, short circuit or electric leakage caused by poor contact of the wire and the connector are avoided.
Owner:FUZHOU JIESHI TECH CO LTD

Adaptive fixed time sliding mode control Buck converter control method and system

The invention relates to the technical field of power electronics, in particular to a control method and system for a self-adaptive fixed-time sliding mode control Buck converter, and the method comprises the following steps: building a Buck converter system model which adopts a double-closed-loop control structure to enhance the dynamic response and stability of the system; establishing a Buck converter state-space equation, and considering the influence of uncertain factors and external interference of the system; designing a sliding mode surface, and performing effective approximation on comprehensive uncertainty in the system by adopting a variable-index adaptive fixed-time sliding mode control method to form an improved control law; using an improved control law, taking the output of the voltage loop as the reference inductive current of the current loop, comparing the reference inductive current with the actual feedback current, and obtaining the error of the current loop; according to the error, accurate control of the Buck converter is realized by adjusting a control signal. According to the invention, the control structure is simplified, the convergence speed is improved, and the robustness and rapidity of the system are enhanced.
Owner:YANZHOU DONGFANG ELECTROMECHANICAL CO LTD

Double-shielding boosting transformer

The utility model relates to the technical field of transformers, in particular to a double-shielding boosting transformer which comprises an upper magnetic core and a lower magnetic core which are arranged oppositely. The lower magnetic core comprises a lower bottom column, a first lower middle column, a second lower middle column and a lower side column; the upper magnetic core comprises an upper bottom column, a first upper middle column, a second upper middle column and an upper edge column; a first core column is formed between the first upper middle column and the first lower middle column in an abutting mode. A second core column is formed between the second upper middle column and the second lower middle column in an abutting mode. A peripheral column is formed between the upper side column and the lower side column in an abutting mode. According to the utility model, after the first coil is wound around the first winding groove and the second coil is wound around the second winding groove, electromagnetic interference between the first coil and the second coil can be effectively reduced through a shielding structure formed by the upper bottom column, the lower bottom column and the second core column; in addition, electromagnetic radiation of the transformer can be effectively reduced through a shielding structure jointly formed by the upper bottom column, the lower bottom column and the peripheral column.
Owner:DONGGUAN DAZHONG ELECTRONICS

WLAN antenna structure and microcomputer

ActiveCN224625900Ureduce distractionsGuaranteed electrical performance
This utility model discloses a WLAN antenna structure and a microcomputer, relating to the field of antenna technology. The WLAN antenna structure includes an antenna unit, which includes a dielectric substrate, an antenna ground plane, and radiating stubs. The radiating stubs are connected to the antenna ground plane, and the radiating stubs and the antenna ground plane are located on the same side of the dielectric substrate. The antenna unit is disposed in the microcomputer with the motherboard spaced apart and isolated from each other, and is connected by a feed line.
Owner:SHENZHEN YIDAO DIGITAL TECHNOLOGY R&D CO LTD

A core structure for a high-energy ignition coil used in automobiles

ActiveCN224287948UHigh secondary voltageReduce Flux LeakageTransformersTransformers/inductances coils/windings/connectionsIgnition coilHigh energy
This utility model discloses a core structure for a high-energy ignition coil used in automobiles, including a core structure installed inside the ignition coil housing. The core structure comprises a magnetic sheet, a primary coil, a secondary coil, and a toroidal core. The magnetic sheet is embedded in the primary coil, which is interference-fitted into the secondary coil. The toroidal core simultaneously surrounds both the primary and secondary coils and is tightly fitted to the magnetic sheet. The end of the primary core furthest from the magnetic sheet is tightly fitted against the toroidal core. The closed magnetic circuit structure of the toroidal core concentrates the magnetic field almost entirely within the core, resulting in minimal magnetic leakage, uniform magnetic field distribution, low magnetic reluctance, and high magnetic flux density. This leads to high energy conversion efficiency, minimal energy loss, and the efficient energy conversion capability enables the ignition coil to generate higher secondary voltage and stronger spark energy. It is suitable for lean-burn and high-performance engines, ensuring reliable ignition and better fuel economy.
Owner:HEBEI SANDONG TECH CO LTD

IGBT drive circuit based on push-pull structure

ActiveCN224124043UMeet fast switching needsHigh gate charge and discharge currentElectronic switchingPower conversion systemsDriving currentIsolator
The utility model provides an IGBT driving circuit based on a push-pull structure, and relates to the technical field of power electronic device driving, and the IGBT driving circuit comprises an optocoupler isolation module which is used for receiving a control signal and providing electrical isolation output; the push-pull driving module comprises an NPN type triode Q1 and a PNP type triode Q2 which are complementary and symmetrical; the push-pull driving module is configured as follows: when the optocoupler is conducted, Q1 is saturated and conducted, Q2 is cut off, and a driving current charges an IGBT grid electrode through R2; when the optocoupler is turned off, the Q2 is saturated and turned on, the Q1 is turned off, and the driving current flows through the R3 to discharge the grid electrode of the IGBT. Bidirectional driving current is provided through a push-pull structure, the charge charging and discharging speed of the IGBT grid electrode is increased, the switching loss is reduced, bidirectional driving current is provided through a switch-on resistor R2 and a switch-off resistor R3, the resistance value of the switch-on resistor R2 is selected to be small, the purpose of reducing switch-on loss Eon is achieved, the resistance value of the switch-off resistor R3 is selected to be large, and the purpose of reducing switch-off Vce is achieved.
Owner:ZHEJIANG XINMENG SEMICON TECH CO LTD

LED analog-digital hybrid dimming drive circuit

The utility model relates to the field of dimming drive circuits, and particularly discloses an LED analog-digital hybrid dimming drive circuit, which comprises an MCU controller and a dimming drive chip, the low-side output end of the dimming drive chip is electrically connected with a power switch element, the power switch element is electrically connected with the negative electrode of an LED lamp through an inductance element, and the power switch element is electrically connected with the negative electrode of the LED lamp through the inductance element. The PWM output end of the MCU controller outputs digital signals to the PWM input end of the dimming driving chip, a digital-to-analog conversion integrating circuit is arranged between the IO output end of the MCU controller and the ADJ input end of the dimming driving chip, and the IO output end of the MCU controller outputs digital signals to the digital-to-analog conversion integrating circuit. The digital-to-analog conversion integrating circuit converts the digital signal into an analog signal and transmits the analog signal to the ADJ input end of the dimming driving chip.
Owner:GUANGZHOU PENGLIN LIGHTING CO LTD

HDMI anti-interference transmission line based on multi-layer shielding

The utility model relates to HDMI transmission line technical field, specifically is a kind of HDMI anti-interference transmission line based on multilayer shielding, including reel, HDMI transmission line and positioning assembly, the periphery of reel is wound with HDMI transmission line, the periphery of HDMI transmission line is equipped with positioning assembly;The HDMI transmission line includes first shielding layer, the periphery of first shielding layer is equipped with shielding braid, absorbing layer is arranged between first shielding layer and shielding braid, second shielding layer is arranged in first shielding layer;By increasing multilayer shielding structure, using multilayer shielding mode, improve the anti-interference performance of HDMI transmission line, improve the stability of work, to improve use effect.
Owner:HUIZEZE RUISHENG TECHNOLOGY CO LTD

Liquid-cooled container control system

The utility model discloses a liquid-cooled container control system, which comprises a cabinet main body and a double-pump circulation module integrated in the cabinet, the double-pump circulation module comprises a main liquid pump and a standby liquid pump, the main liquid pump is driven by a frequency converter, the standby liquid pump can be driven by a power frequency power supply or the frequency converter, and a multipoint temperature acquisition module is arranged in the cabinet main body. By adopting the double-pump redundancy design, the standby pump can be seamlessly connected within 200 milliseconds when the main pump breaks down, the continuous operation of the system is ensured, the availability of the system is as high as 99.99%, meanwhile, the main liquid pump is provided with the frequency converter, the rotating speed is dynamically adjusted according to real-time pressure feedback, and compared with a traditional fixed-frequency pump, energy is saved by 20-30%. Multi-point temperature collection and closed-loop control are achieved, accurate temperature control is achieved, energy consumption is further reduced, a liquid leakage detection sensor is matched to trigger a signal at the moment of liquid leakage, a power source is cut off immediately through a PLC, an alarm is given, and electric short circuit and equipment damage are effectively avoided through millisecond-level response.
Owner:ZHEJIANG QIANYUN INTELLIGENT TECH CO LTD

Integrated miniaturized air-cooled heat dissipation electronic cabinet

This utility model relates to an integrated miniaturized air-cooled electronic chassis, including a chassis with a cubic structure open at both the front and rear ends. A front cover assembly and a rear cover assembly are respectively installed on the front and rear open surfaces, and electromagnetic shielding strips are provided in the installation gaps between the chassis and the front and rear cover assemblies. A circuit module is installed inside the chassis, and curved heat dissipation fins are installed on the top and bottom. An air inlet is provided at the rear corresponding to the heat dissipation fins. Air outlets are provided on the top and bottom of the front cover assembly. A fan assembly is installed on the rear cover assembly. This application utilizes the fan assembly, rear cover assembly, chassis, heat dissipation fins, and front cover assembly to form an effective air-cooled heat dissipation channel, which can quickly dissipate the heat generated by the circuit modules inside the chassis, greatly improving the chassis's heat dissipation efficiency. Simultaneously, the electromagnetic shielding strips effectively reduce electromagnetic interference, improve the stability of the electronic equipment inside the chassis, and ensure that the chassis can operate normally in complex electromagnetic environments.
Owner:CENT CHINA OPTOELECTRONICS TECH RES INST (CHINA STATE SHIPBUILDING CORP 717TH RES INST)

A scanning electron microscope in-situ heating and electrical testing apparatus and method

This invention provides an in-situ heating and electrical testing apparatus and method for scanning electron microscopy (SEM). The apparatus includes a T-shaped sample stage, an in-situ heating and electrical testing chip, a probe card, wires, a vacuum flange with a BNC interface, a signal source meter, pins, and fixing studs. The in-situ heating and electrical testing chip is placed on the T-shaped sample. The probe card presses into contact with the heating and testing electrodes on the in-situ heating and electrical testing chip and leads out wires, simultaneously fixing the chip. The fixing studs secure the probe card to the T-shaped sample stage. The vacuum flange with the BNC interface connects the probe card and the signal source meter via wires. This invention provides in-situ heating, electrical testing, and microstructure observation functions for SEM, offering advantages such as rapid heating and cooling, low thermal drift, and low electromagnetic interference. It provides a platform for testing the performance of micro and nanomaterials and an experimental platform for preliminary screening of transmission electron microscopy (TEM) samples.
Owner:UNIV OF SCI & TECH OF CHINA

Battery system, control method for battery system, controller, vehicle, medium, and program product

The present disclosure relates to a battery system, a control method, a controller, a vehicle, a medium and a program product, the battery system comprising a battery management module and a plurality of battery cell management modules, the battery management module and each battery cell management module communicating through any one of a wireless communication link and a wired communication link, and the plurality of battery cell management modules sharing the wired communication link, the control method comprising: determining a communication state indicating whether the wired communication link is faulty when the battery management module communicates with each battery cell management module through the wired communication link; determining a fault position of the wired communication link when the communication state indicates that the wired communication link is faulty; and controlling the wired communication link and the wireless communication link to switch according to the fault position. Thus, automatic switching of the wired communication link and the wireless communication link can be achieved, thereby improving the reliability and dynamic adaptability of the battery system.
Owner:BYD CO LTD

Superjunction semiconductor devices

ActiveCN224290497Usmall sizeReduce uneven distributionDevice materialElectromagnetic interference
This invention relates to a superjunction semiconductor device, comprising a first conductivity type substrate, a first conductivity type epitaxial layer, multiple layers disposed on the front side of the first conductivity type substrate, second conductivity type ions implanted into the first conductivity type epitaxial layer to form second conductivity type first pillar regions, at least two rows of second conductivity type first pillar regions, each row of second conductivity type first pillar regions connected to form second conductivity type first pillars, a first conductivity type second epitaxial layer disposed on the front side of the first conductivity type first epitaxial layer, a first trench formed on the first conductivity type second epitaxial layer, the first trench filled with a second conductivity type material to form second conductivity type second pillars, the second conductivity type second pillars and the second conductivity type first pillars being correspondingly disposed and connected to the corresponding second conductivity type first pillars. This invention has the effect of reducing uneven electric field distribution and reducing electromagnetic interference.
Owner:WUXI KUANTONG SEMICON CO LTD

Touch sensor, method of driving the same, and electronic device

The invention relates to a touch sensor, a method of driving the touch sensor, and an electronic device. The touch sensor includes: a touch driver configured to generate a plurality of signals; and a plurality of channels configured to transmit a plurality of signals, the plurality of channels including a driving channel configured to transmit a driving signal having a fundamental frequency, a first cancellation channel configured to transmit a first cancellation signal having the fundamental frequency and having a phase opposite to a phase of the driving signal, and a second cancellation channel configured to transmit a second cancellation signal having the fundamental frequency and having a phase opposite to a phase of the driving signal. The second cancellation channel is configured to transmit a second cancellation signal having a harmonic frequency of the fundamental frequency and having a phase opposite to a phase of a harmonic of the drive signal having the harmonic frequency.
Owner:SAMSUNG DISPLAY CO LTD

Differential signal Fanout structure for improving integrity of high-speed signal

The invention belongs to the technical field of electronic circuit design, and discloses a differential signal Fanout structure for improving the integrity of a high-speed signal, and the structure comprises a PCB substrate; the differential signal pair is arranged on the PCB substrate, the differential signal pair comprises a P signal wire and an N signal wire, and the P signal wire and the N signal wire are respectively used for connecting chip pins; and a ground shield unit. By adopting layered fan-out and large-spacing decoupling design, crosstalk of high-speed differential signals is remarkably reduced, the limitation that tight coupling wiring must be conducted on the same layer in a traditional Fanout structure is broken through, P signals and N signals are arranged on the surface layer and the inner layer of a PCB respectively, and therefore the signal transmission efficiency is improved. By means of isolation of a vertical space, maximization of horizontal projection spacing is achieved (a decoupling spacing area is formed), inter-line coupling capacitance is remarkably reduced, far-end crosstalk is remarkably reduced through the structure, and the signal-to-noise ratio and eye pattern opening of a high-speed link are improved.
Owner:SUZHOU XINCHUANGLIAN OPTOELECTRONIC TECH CO LTD

Flachriemenverbindungsmechanismus, elektrische energieübertragungsvorrichtung und kraftfahrzeug

ActiveAT1916948TEliminate structureReduce electromagnetic interference
A flat-belt type connecting mechanism, an electric energy transmission device and a motor vehicle. The flat-belt type connecting mechanism includes a male-end connecting mechanism (10) and a female-end connecting mechanism (20). The male-end connecting mechanism includes a busbar (11), a flat terminal (113), and a male-end housing (12) connected to the busbar and the flat terminal. The female-end connecting mechanism includes a double-busbar (21), a clamping terminal (213), and a female-end housing (22) connected to the double-busbar and the clamping terminal. The male-end connecting mechanism and the female-end connecting mechanism are electrically connected to each other through the clamping terminal and the flat terminal, and the male-end housing and the female-end housing are assembled and connected to each other, to form the flat-belt type connecting mechanism. The busbars are stacked at a proper interval to effectively reduce an electromagnetic interference to other parts after the busbars are electrified, thereby eliminating a shielding layer structure of a high-voltage charging harness to reduce the cost and weight.
Owner:CHANGCHUN JETTY AUTOMOTIVE PARTS CORPORATION

Data transmission method and display device

The application discloses a data transmission method and a display device. The method comprises the following steps: outputting a differential dimming signal and a differential clock signal through a display controller, wherein the differential dimming signal is used for carrying dimming data corresponding to a frame of image; receiving the differential dimming signal and the differential clock signal through a dimming controller, and generating target dimming data for backlight control based on the differential dimming signal and the differential clock signal. The dimming data and the clock signal are transmitted in the form of differential signals, so that the data transmission rate can be effectively improved, the layout wiring in the panel can be simplified, the product cost can be optimized, and in addition, the transmission mode of the differential signal can effectively reduce the electromagnetic interference problem and improve the display performance of the equipment.
Owner:GUANGZHOU XIANXIN TECHNOLOGY CO LTD

An ozone generator circuit structure

This invention discloses an ozone generator circuit structure. The power supply passes through the winding of filter L1, forming a π-type filter with capacitors C1 and C2 to filter out differential-mode interference and generate a relatively pure AC voltage. Capacitors C3 and C4 are connected in parallel with the main voltage to form a common-mode filter network, effectively suppressing electromagnetic interference (EMI). The filtered AC voltage is rectified by a full-bridge rectifier D1-D4, converting the AC power into pulsating DC power. The pulsating DC power is filtered by capacitors C5 and C6 (105n) to generate smooth DC power, providing a stable power supply for subsequent circuits. This circuit, through reasonable filtering, rectification, voltage regulation, driving, and excitation design, achieves efficient conversion from AC power to high-frequency, high-voltage pulses. It can stably drive the ozone tube to generate ozone gas, featuring high efficiency, low interference, a stable driving signal, and a reliable protection mechanism, making it suitable for applications requiring high-efficiency ozone generation.
Owner:ANHUI UNISON ELECTRONIC TECH CO LTD

An isolated power supply circuit and an electric energy meter

This invention relates to the field of switching power supply technology, specifically providing an isolated power supply circuit aimed at solving the problems of low integration, poor output consistency, and high cost and energy consumption in existing multi-channel isolated power supplies. To this end, the invention comprises: a power control and drive module, an isolation module, a rectification, filtering, and voltage regulation module, an anti-interference module, and a load module. The power control and drive module receives power, generates a drive voltage signal, and outputs the drive voltage signal to the isolation module, while simultaneously outputting a ground potential voltage signal to the anti-interference module. The isolation module achieves voltage signal isolation output through internal electromagnetic coupling, outputting the isolated voltage signal to the rectification and filtering module. The anti-interference module outputs the filtered, interference-free ground potential voltage signal to the rectification and filtering module. The rectification and filtering module performs rectification and filtering processes, outputting a stable voltage signal to the load module. This invention features high integration and high output consistency.
Owner:QINGDAO ITECHENE TECH CO LTD