4282 results about "Electronic circuit" patented technology

The invention relates to a reverse polarity protected electronic circuit with a negative and a positive supply voltage line and with an electrical application circuit. The electrical application circuit has a positive and a negative power supply terminal. The reverse polarity protected electronic circuit comprises a reverse polarity protection circuit (1). The reverse polarity protection circuit (1) has a first and a second N-channel enhancement transistor as part of a reverse polarity protection transistor group (17). The first and second N-channel enhancement transistors are electrically connected in anti-series via a center terminal (86) of the reverse polarity protection circuit (1). The reverse polarity protection circuit (1) includes a control device (4) which is connected to the positive and negative supply voltage lines.Only when connected with the correct polarity does the control device (4) switch the first and second N-channel enhancement transistors of the reverse polarity protection transistor group (17) on. The control device (4) includes its own additional control reverse polarity protection circuit (81) which prevents damage to the control device (4) if connected with incorrect polarity, so that the control device (4) does not switch on the first and second N-channel enhancement transistors if connected with incorrect polarity.

The invention relates to a reverse polarity protected electronic circuit with a negative and a positive supply voltage line and with an electrical application circuit. The electrical application circuit has a positive and a negative power supply terminal. The reverse polarity protected electronic circuit comprises a reverse polarity protection circuit (1). The reverse polarity protection circuit (1) has a first and a second N-channel enhancement transistor as part of a reverse polarity protection transistor group (17). The first and second N-channel enhancement transistors are electrically connected in anti-series via a center terminal (86) of the reverse polarity protection circuit (1). The reverse polarity protection circuit (1) includes a control device (4) which is connected to the positive and negative supply voltage lines.Only when connected with the correct polarity does the control device (4) switch the first and second N-channel enhancement transistors of the reverse polarity protection transistor group (17) on. The control device (4) includes its own additional control reverse polarity protection circuit (81) which prevents damage to the control device (4) if connected with incorrect polarity, so that the control device (4) does not switch on the first and second N-channel enhancement transistors if connected with incorrect polarity.

An electronic circuit system implementing and executing machine learning inference engines. While ML inference engines are based on (architectures and parameters defined by) configured, trained and tuned machine learning models, our design has the novel ability to support data driven, on-the-fly-reconfigured model runs. Reconfiguration and tuning operations include dynamic computational graph modifications, define-by-run alterations, changes to network depth (number of layers) and width (neurons per layer), and adjustments to weights, biases, plus activation function parameters. Neural networks supported include Feed-Forward, RNN, CNN, and Hopfield architectures, plus Ensemble, Federated, Cooperating, Adversarial, and Swarm collections. Decision Trees and Forests are also supported, as are more esoteric approaches such as ART and KAN. Our invention is capable of running both standalone and cooperatively, the cooperative processing being local and / or remote / cloud based, interfacing with telemetry applications to feed data, and machine learning software to feed new or updated models.

An electronic circuit includes: an event detector logic circuit; a computing device; and a plurality of integrated circuit (IC) chips that are electrically connected in parallel between at least one control bus configured to provide input signals and the event detector logic circuit. The event detector logic circuit is configured to: receive a plurality of output signals from the plurality of IC chips, generate a data output signal that includes data obtained from a first output signal of the plurality of output signals, and transmit the data output signal to the computing device.

The invention relates to the technical field of electronic circuits, in particular to a construction method and system of a high-speed differential signal transmission model. The method comprises the following steps: acquiring design data of the printed circuit board, and extracting differential signal line data; constructing a high-speed differential signal transmission model according to the differential signal line data; performing signal transmission simulation based on the high-speed differential signal transmission model to obtain high-speed differential signal transmission data; identifying a crosstalk source position based on the high-speed differential signal transmission data to obtain a crosstalk source coordinate; detecting via hole dislocation based on the crosstalk source coordinates to obtain via hole dislocation data, and evaluating a heat accumulation degree based on the via hole dislocation data; identifying an electrical fault area of the circuit board based on the heat accumulation degree; and extracting stack structure information according to the printed circuit board design data. Based on the electronic circuit technology, the precision and reliability of the high-speed differential signal transmission model are improved, and the signal transmission quality and the electrical fault detection rate are remarkably improved.

Electro-absorption modulators (EAM) and monolithically integrated electro-absorption modulated lasers (EML) and methods of fabrication are disclosed. Vertically stacked waveguides for a distributed feedback (DFB) laser, an electro-absorption modulator (EAM) and a passive output waveguide are vertically integrated, and the DFB laser, EAM and output waveguide are optically coupled using laterally tapered vertical optical couplers. Laterally tapered vertical optical couplers provides an alternative to conventional butt-coupling of a laser and EAM, offering improved reliability for high power operation over extended lifetimes. Optionally, the EML comprises monolithically integrated electronic circuitry, e.g., driver and control electronics for the DFB laser and EAM. Beneficially, integrated EAM driver and control circuitry comprises a high-speed electro-optical control loop for very high-speed linearization and temperature compensation, e.g. to enable advanced modulation schemes, such as PAM-4 and DP-QPSK, for analog optical data center interconnect applications. Some embodiments are compatible with fabrication using a single epitaxial growth.

The invention relates to the technical field of electronic circuit detection, in particular to a detection method for checking abnormal work of a lamp, which comprises the following steps: acquiring the consistency of a lighting state and voltage, extracting abnormal response, checking power supply connection and checking non-response, monitoring and controlling the relationship between output and current action starting, and analyzing response continuity. And detecting branch voltage difference change and direction, monitoring voltage jump and current response starting point performance, extracting response data, and obtaining a classification result. According to the invention, through cooperative detection of voltage and current response behaviors, in combination with path voltage difference direction change and time sequence characteristics, a load abnormal response section is identified step by step, the abnormal state identification capability is enhanced, an action time sequence cross validation mode is adopted to replace a traditional static judgment process, misjudgment interference is reduced, and manual intervention requirements are reduced; therefore, the detection process is more continuous, the related operation is universal, the method can be suitable for various lamp structures, the troubleshooting precision is improved, and the execution cost is controlled at the same time.

The invention discloses a self-calibration high-resolution PWM (Pulse Width Modulation) signal generating circuit, which belongs to the field of electronic circuits and comprises a PWM signal generating module, a high-resolution module, a calibration module, a register module and an AHB (Advanced High-performance Bus) interface. The PWM signal generation module generates a coarse adjustment PWM signal based on a comparison result of the comparison register and the counter; and the high-resolution module performs fine edge positioning on the coarse adjustment PWM wave to generate a fine adjustment PWM signal. Under the condition that the clock frequency is not changed, the high-resolution module can improve the resolution of the PWM signal. The calibration module has a high-resolution calibration function, and the high-resolution calibration function can avoid the deviation of a delay value caused by the environment and ensure the accuracy and stability of the high-resolution PWM. The register module is responsible for register read-write control. The AHB bus interface part is responsible for processing bus interface signals. The self-calibration high-resolution PWM signal generation circuit has the advantages of being high in precision, high in stability, easy to IP and the like.

An electrocardiography monitor is provided. A sealed housing includes one end wider than an opposite end of the sealed housing. Electronic circuitry is provided within the sealed housing. The electronic circuitry includes an electrographic front end circuit to sense electrocardiographic signals and a micro-controller interfaced to the electrocardiographic front end circuit to sample the electrocardiographic signals. A buzzer within the housing outputs feedback to a wearer of the sealed housing.

A liquid cooled heat exchanger includes first and second heat exchange chambers that are in thermal communication. The first heat exchange chamber is downstream of the second heat exchanges chamber and receives heat from a heat generating device, such as an electronic circuit. Heat in the first heat exchange chamber can be transferred to the second heat exchange chamber to increase the temperature of a subcooled liquid working fluid in the second heat exchange chamber. This can render a pressure drop across the heat exchanger that is relatively insensitive to a fraction of liquid that is vaporized in the first heat exchange chamber.

An electric wheel controller and methods for operating and manufacturing an electric wheel controller are disclosed. Embodiments include a controller forming a structural and / or load bearing component of the vehicle suspension system. Embodiments of the controller can be mounted to a wheel assembly, and in some embodiments the controller is a suspension knuckle. Embodiments include a controller with a cavity and electronic circuitry submerged in liquid coolant. During operation the coolant can absorb heat from the immersed circuitry. In some embodiments the coolant transitions to a gas and / or vapor, and can move to an upper portion of the cavity. When the coolant contacts the cooler surfaces of the cavity the coolant can transition back to a liquid and return to a pool of liquid coolant in which the circuitry is immersed. A heat sink can be connected to the controller, such as by laser soldering.

The invention belongs to the technical field of electronic circuits, and provides a low-dropout linear voltage stabilizing circuit, a low-dropout linear voltage regulator and electronic equipment. The low-dropout linear voltage stabilizing circuit comprises an error amplification module, a buffer module, a power module, a feedback module and a transient enhancement module, the buffer module is connected with the error amplification module, the power module and the transient enhancement module, the power module is connected with the transient enhancement module, the feedback module and a load, and the feedback module is connected with the error amplification module. When the current on the load changes, the transient enhancement module provides the first current for the power module according to the target voltage, so that the power module quickly adjusts the target voltage according to the first current and quickly responds to the change of the load; the feedback module outputs feedback voltage according to the target voltage; the error amplification module outputs an error signal according to the feedback voltage and the reference voltage; the buffer module outputs a driving signal to the power module according to the error signal, so that the power module maintains the target voltage stable according to the driving signal.

The invention belongs to the field of electronic circuits, and provides a zero-cross detection circuit with an anti-crash function, a switching power supply and electronic equipment. The circuit comprises a current output module, a capacitor module, a switch module, a comparison module and a logic module, the capacitor module is connected with the current output module, the switch module and the comparison module, the current output module is connected with the switch module and a power module, and the logic module is connected with the switch module and the comparison module. And the current output module, the capacitor module and the switch module are also grounded. The logic module determines the working state of the circuit through the zero-crossing signal output by the comparison module, when the zero-crossing detection circuit enters a dead halt state, the reset signal is output according to the clock signal and the zero-crossing signal, and the switch module is controlled to be switched on periodically, so that the capacitor module is discharged periodically, the zero-crossing detection threshold value is reduced slowly, and the zero-crossing detection efficiency is improved. Finally, the zero-cross detection circuit can normally trigger zero-cross detection, and the reliability and efficiency of the switching power supply are improved.

The invention discloses an intelligent wiring optimization method and system for an HDI circuit board, and relates to the technical field of electronic circuit optimizing.According to the intelligent wiring optimization method and system for the HDI circuit board, by arranging an electromagnetic compatibility monitoring module and a thermal management evaluation module, the electromagnetic interference index Em and the thermal aggregation index Thc of the HDI circuit board are monitored in real time and evaluated; an optimization early warning signal is triggered and a thermal management optimization suggestion is generated, so that the problems of electromagnetic interference and insufficient heat dissipation are accurately solved; by calculating and evaluating a comprehensive optimization index COP, the electromagnetic shielding and heat distribution balancing capability is improved; and finally, by calculating and evaluating an optimization performance evaluation coefficient OPE, a dynamic adjustment module adjusts wiring parameters and optimizes a path in real time, iterative optimization is performed in combination with a real-time feedback mechanism, and finally a wiring scheme meeting requirements is output, so that the problems of low automation degree and poor optimization effect of an existing system are solved, and the system is suitable for popularization and application. And the requirement of wearable equipment on high performance of the HDI circuit board is met.

The present subject relates to a method for proving a statement describing a functionality of an electronic circuit, using a quantum computer and a proof assistant.The procedure comprises: encoding a current proof state into a vector of real numbers of a fixed length, where the current proof state defines a task to prove at least part of the statement; encoding the vector into a quantum state of a quantum system of the quantum computer; using the quantum state as an input quantum state by a quantum machine learning model to provide an output quantum state, the measurement of which constitutes a proof step for the defined task; measuring the output quantum state, thereby obtaining the proof step for the defined task; providing the proof step to the proof assistant; and receiving a next proof state from the proof assistant in response to the provision of the proof step.

Disclosed is an electronic circuit. The electronic circuit includes a first transistor device, a second transistor device, and a third transistor device, each having a control node and a load path. The electronic circuit further includes a drive circuit. The load paths of the first and second transistor devices are connected in parallel, the load path of the third transistor device is connected in series with the load paths of the first and second transistor devices, and the first transistor device and the second transistor device are integrated in a common semiconductor body. The drive circuit is configured, based on a control signal, to successively switch on the first transistor device and the second transistor device, so that the second transistor device is switched on when the first transistor device is in an on-state.

To provide a thin film capacitor having a pair of terminal electrodes capable of being disposed on the same plane. A thin film capacitor 1 includes a metal foil having a non-roughened center portion and a roughened upper surface, a dielectric film covering the roughened upper surface of the metal foil, an electrode layer contacting the non-roughened center portion of the metal foil through an opening formed in the dielectric film, and an electrode layer contacting the dielectric film without contacting the metal foil. A thickness of the center portion of the metal foil at a position overlapping the electrode layer is larger than a thickness thereof at a position overlapping the electrode layer.

The invention provides a delay chain circuit, a voltage drop detection circuit, a chip and electronic equipment, and belongs to the field of electronic circuits. The delay chain circuit comprises m stages of delay units, each stage of delay unit comprises an output end and n input ends, m is an integer greater than or equal to 2, and n is an integer greater than or equal to 2; at least one input end of the ith-level delay unit is connected with the output end of the (i-1) th-level delay unit, and i is an integer greater than or equal to 2; the sensitivity of each stage of delay unit is adjustable, and each stage of delay unit comprises n delay branches which are connected in parallel; the n delay branches comprise at least one controllable delay branch, and the state of each controllable delay branch comprises an on state or an off state. By adjusting the sensitivity of the delay chain circuit, different load changes can be adapted, and the maximum voltage gain of a chip can be supported when a dynamic frequency reduction technology is used.

The invention relates to the technical field of electronic circuits, in particular to a threshold voltage control system and control equipment of a field effect transistor. Comprising a main feedback loop used for obtaining an actual value of a threshold voltage of a field effect transistor, comparing the actual value of the threshold voltage with a set value to obtain a deviation signal, and sending the deviation signal to a control module; the auxiliary feedback loop is used for collecting the current change rate of the field effect transistor and sending the current change rate to the control module; the control module is used for generating a control signal according to the deviation signal and the current change rate and adjusting the grid voltage of the field effect transistor according to the control signal so as to control the threshold voltage of the field effect transistor. According to the invention, the main feedback loop and the auxiliary feedback loop cooperatively collect the voltage deviation signal and the current change rate of the field effect transistor so as to dynamically adjust the grid voltage of the field effect transistor, thereby improving the control precision.

The disclosure relates to an electronic circuit to verify the integrity of a switch. The circuit comprises a voltage comparator and decoupling switch. The decoupling switch configured receive the driving signal having a first logic value to enable the monitoring of the comparison voltage and is configured to receive the monitoring enable signal having a first logic value to command the opening of the decoupling switch. The electronic circuit is configured to generate the output monitoring signal having a first logic value in an event that the switch is an open circuit and having a second logic value in an event that the switch is a short circuit.

The utility model belongs to the technical field of commodity anti-theft, and discloses a commodity anti-theft device, including a first half shell, a PCB assembly, a wire rope assembly, a second half shell and a lock core assembly, wherein the PCB assembly is arranged in a shell composed of the first half shell and the second half shell, the wire rope assembly includes a copper buckle, two leads and a wire rope, the fixed end of the wire rope is arranged in the shell, the fixed end is provided with a copper buckle and two leads, the two leads are electrically connected and conducted with the PCB assembly to form an electronic circuit, the free end of the wire rope passes through the lock core assembly, the part of the wire rope outside the shell forms a ring shape and is bound to the protected commodity, when the wire rope is cut, the circuit is disconnected and the PCB assembly alarm is triggered, and the lock core assembly is provided with a loose rope dial button, and the loose rope dial button can be turned to make the wire rope withdraw backwards to loosen the rope. The device is small in size, reduces the space occupied by the shelf, and can meet the anti-theft needs of small packaged commodities.

Method and servers for determining optimized device parameters of an electronic circuit. The method includes accessing design information of the electronic circuit, determining a set of device parameters of the electronic circuit based on the design information, receiving information indicative of set of performances-of-interest to be optimized, and a corresponding set of target values, each target value being associated with a corresponding performance-of- interest, defining a multi-objective reward function based on the set of performances-of-interest to be optimized and outputting, using a pre-built Machine Learning (ML) algorithm interacting with an electronic design automation (EDA) environment, an optimized device parameter value for each of the device parameters based on the multi-objective reward function.

In a case in which an electronic pen main unit made into a cartridge is held movably in a casing, electrical connections between the electronic pen main unit and electronic circuit components of the casing are reliably established. The electronic pen main unit is fitted to a fitting part disposed in a casing of an electronic pen in which the pen tip side is made to be an opening and is housed in a state of being movable in a hollow part of the casing by a movement mechanism that moves the fitting part in the axial center direction of the casing. The electronic pen main unit includes a pen tip part including an electrically-conductive core body allowed to protrude to the external through the opening by being moved by the movement mechanism, a main body tubular part to which the pen tip part is joined on the pen tip side in the axial center direction and that houses an electronic circuit including a signal generating circuit that generates a signal to be sent out to the external through the core body, and a rear-end-part connector that is disposed at a rear end part of the main body tubular part on the side opposite to the pen tip part in the axial center direction, includes a terminal connected to the electronic circuit, and is joined to a connector for joining disposed at the fitting part of the casing.

Examples of devices for providing cooling solutions are described. One example device includes a boilerplate, a printed circuit board (PCB), one or more integrated circuit (IC) chips placed on the PCB, a thermal interface material (TIM), and one or more gaskets. The TIM is placed between the boilerplate and at least one IC chip of the one or more IC chips. The TIM is coupled to a surface of at least the IC chip that faces the boilerplate. The one or more gaskets are placed between the boilerplate and the PCB and encompassing the TIM. The one or more gaskets are configured to seal the at least one IC chip to provide a protective barrier for the TIM.

Disclosed is a reset semiconductor integrated circuit that outputs a reset signal in response to a power supply voltage of a monitoring target becoming lower than a predetermined level, the reset semiconductor integrated circuit including: a voltage detection circuit; an output stage including a CMOS circuit that generates and outputs a signal according to a detection result of the voltage detection circuit; a monitored voltage input terminal to which the power supply voltage of the monitoring target is input; a reference potential terminal to which a voltage as a reference potential of a circuit is applied; an external voltage terminal which is connected to a power supply voltage terminal of the output stage to allow a power supply voltage as an operation voltage of the output stage to be applied from outside; and an output terminal to output the signal generated by the output stage.

The invention discloses a medical oncology implantable infusion port leakage monitoring system and method, and relates to the technical field of infusion leakage detection. The multi-parameter sensor module is used for monitoring pressure fluctuation in an infusion port, sensing temperature change of surrounding tissues, detecting abnormal leakage conditions of medicine components and obtaining multi-parameter sensor data; the flexible electronic circuit module is used for processing multi-parameter sensor data in real time; the data analysis and early warning module is used for performing real-time analysis on the processed multi-parameter sensor data and performing graded early warning; and the wireless communication module is used for transmitting the data of the multi-parameter sensor to an external terminal in real time by adopting a wireless communication technology. The invention relates to data acquisition, signal processing, feature extraction and fusion, leakage threshold judgment and response and feedback of an alarm mechanism, the accuracy of sensor data is ensured by applying a multi-modal fusion algorithm, and the safety and medical response efficiency of a patient are improved through a graded early warning mechanism.

The utility model relates to the technical field of electronic circuits, in particular to a material receiving device which comprises a lead screw elevator, a bearing plate and a pressing assembly, the bearing plate is used for placing stacked ceramic circuit boards, the lead screw elevator is connected with the bearing plate, and the lead screw elevator is used for driving the bearing plate to move in the vertical direction. The pressing assembly comprises a clamping block, a connecting rod, a pressing head and a first driving device, the connecting rod penetrates through the clamping block and the pressing head, so that the pressing head is rotationally connected with the clamping block, the first driving device is horizontally arranged, the output end of the first driving device is connected with the pressing head, and the first driving device is used for driving the pressing head to rotate around the connecting rod; therefore, the pressing head can press the ceramic circuit boards stacked on the bearing plate. The problem that when a traditional receiving device transports stacked ceramic circuit boards, the stacked ceramic circuit boards are prone to displacement is solved.

The invention provides a circuit board line crosstalk checking method. The method comprises the following steps of: acquiring an electronic circuit diagram file by using a processor; selecting a target power line segment and a target signal line segment from the plurality of lines; executing a crosstalk check process including: determining whether the target power line segment and the target signal line segment intersect according to the coordinate information of the target power line segment and the target signal line segment; according to the coordinate information, whether the distance between the target power line segment and the target signal line segment is smaller than a first preset interval is judged; when the distance is smaller than a second preset distance, judging whether the target power line segment and the target signal line segment are in a parallel state or not; and marking at least one of the target power line segment and the target signal line segment as a crosstalk line segment when a result of any one of the plurality of judgments is true. According to the technical scheme provided by the invention, the problem that a power line possibly generates crosstalk on a signal line can be eliminated, and meanwhile, the inspection efficiency is improved and omissions are reduced.

The invention discloses a dual-mode TDC implementation method and system based on an FPGA, and relates to the technical field of electronic circuits, and the technical key points are as follows: after a dual-mode signal generation circuit receives each STOP pulse, a logic sequence opposite to the last time is immediately output as an effective delay signal, the reset of the last time signal in a time delay chain (TDL) is not required, and the time delay time is shortened; when the logic signal propagated last time does not completely fade, the new reverse logic signal can be independently propagated in the TDL, and the new reverse logic signal and the new reverse logic signal do not interfere with each other; meanwhile, the rising edge of the system clock only updates the state of the main trigger to serve as the logic reference of the next trigger, and an additional reset process is not needed, so that the dead zone time of single measurement is strictly controlled to be a single period corresponding to the system clock, and compared with a double-period dead zone in an existing scheme, the dead zone time is remarkably shortened, and the measurement rate is synchronously doubled; in a high-frequency pulse measurement scene, pulse loss caused by an overlong dead zone can be effectively avoided, and the measurement efficiency is remarkably improved.

Contactless device for electronic payment and digital recognition of a person and method for generating a unique temporary OTP dynamic code via the contactless device. The device having a first set of components and a second set of components, wherein the first set of components comprises at least one biometric sensor for detecting a biometric character of a user and generating a biometric datum; at least one battery for supplying the components of the device; a display for displaying information data; an OTP microchip for generating a temporary dynamic code; at least one activation button for the OTP token function; at least one electronic circuit for contactless communication; and a microcontroller to manage the operations of the device. The second set of components includes at least one passive NFC microchip, in which the passive NFC microchip is removable from the device and isolated from the first set of components.