23 results about "Power electronic circuit" patented technology

Method for producing a heat and current conductor in power electronic circuits (202), in which a power electronic circuit is arranged on a printed circuit board (200, 500, 600, 700, 800), in which at least one metallic heat conductor tube (100, 400, 510, 710) is flattened at at least two locations (402, 502, 704), in which the at least two locations (402, 502, 704) are provided with a solderable surface, in which at least two metallic surfaces (206, 508), which are parts of conductor tracks, are provided on the printed circuit board (200, 500, 600, 700, 800), in which at least one metallic surface (206, 508) is located in the immediate vicinity of at least one power electronic component (202) of the power electronic circuit (202) arranged and electrically contacted with the at least one electronic component (202), wherein the at least one metallic heat conduction tube (100, 400, 510,710) at the at least two locations equipped with a solderable surface (302, 304, 306, 308, 402, 502, 704) are soldered to at least two provided metallic surfaces (206, 508) on the printed circuit board (200, 500, 600, 700, 800), wherein current transport via the at least one metallic heat conduction tube (100, 400, 510, 710) takes place at least between the at least two metallic surfaces (206, 508).

A power supply system for a power electronic circuit of an electric vehicle includes a driver board with components configured to activate the power electronic circuit, a monitoring device configured to monitor the supply voltage, and a circuit assembly having a switching element arranged between an accumulator or a phase of the electric motor and the driver board so that the switching element provides a power supply from the accumulator or electric motor for components of the driver board. When the monitoring device detects a failure or reduction in the supply voltage of a component of the driver board, the monitoring device transfers the switching element from an open state to a closed state, for which the supply voltage has failed or collapsed.

Power electronic module, its manufacturing process and vehicle comprising such a module The invention relates to a power electronic module (1) comprising a protective housing (2), forming a Faraday cage and preferably sealed, and at least one circuit, component or set of power electronic components (3) housed in the latter, the housing (2) being formed of two constituent parts (4, 4') assembled together peripherally.This module is characterized in that at least one (4) of its two constituent parts (4, 4') consists of a formed metal sheet on which a liquid cooling circuit (6) is attached or formed at a functional region (5') of its outer face (5), and in that said at least one power electronic circuit, component, or set of components (3) is mounted against the inner face (5'') of the sheet metal part (4) and opposite the aforementioned outer functional region (5'). Figure to be published with the abbreviation: Fig. 1C.

The application relates to the technical field of low-power electronic circuit control, and discloses a low-power circuit control system based on motion amplitude change, which comprises a motion sensor sub-module, a noise feature acquisition sub-circuit, a low-power control unit, a main function module and a power management module. The motion sensor sub-module is used for outputting only an analog signal containing a background noise component without performing normal motion measurement in a low-power bias mode. The noise feature acquisition sub-circuit is used for obtaining a current feature vector composed of a noise envelope average value and a noise envelope variance. The low-power control unit is used for switching the system among a noise monitoring standby state, a noise feature verification state and a main function working state. The main function module is used for starting and executing a predetermined function task when the main function working state is entered. The background noise component of the motion sensor is used as a judgment basis in the low-power bias mode, the structure reduces the number of function circuits of the motion sensor participating in the standby stage, and thus the energy consumption of the system in the standby stage is reduced.

The utility model provides a sampling circuit and a power conversion device. The sampling circuit is provided with a signal input end and a signal output end; the signal input end is connected with a power electronic circuit; the power electronic circuit includes a power switch operable at a plurality of switching frequencies; the sampling circuit comprises a plurality of trap filter circuits; wherein the plurality of trap filter circuits are connected between the signal input end of the sampling circuit and a grounding point, and / or the plurality of trap filter circuits are connected between the signal output end of the sampling circuit and the grounding point; each wave trap circuit is provided with a corresponding switch unit and a corresponding wave trap unit; the resonant frequencies of the wave trap units in the plurality of wave trap circuits are respectively corresponding to different switching frequencies of the power switch. Therefore, the sampling precision of the electrical parameters of the sampling points in the power electronic circuit can be improved.

The invention relates to the technical field of power electronic circuit fault diagnosis, and discloses a power electronic circuit fault diagnosis method and system based on improved CCO-VMD, and the method comprises the steps: obtaining circuit multi-channel signal data needed by a training model, employing median filtering or wavelet threshold de-noising, guaranteeing the signal stability, carrying out the capital segmentation according to a fixed window length, and carrying out the segmentation according to a fixed window length. Standardizing each channel to prevent amplitude difference from influencing VMD decomposition; according to the problem that a clarias fuscus optimization algorithm is prone to falling into local optimum and insufficient population diversity in actual operation, CCO is improved; the method comprises the following steps: optimizing hyper-parameters, namely a bandwidth control factor alpha and a modal number capital K, of VMD by improving CCO to obtain an optimal solution, and performing VMD decomposition on an output signal to obtain an IMF; converting each IMF to obtain an M-GAF image, and inputting the obtained multi-channel image into CNN-LSTM training to obtain a diagnosis model; and inputting the test sample into the built power electronic circuit fault diagnosis model, and judging the attenuation degree of the capacitor, thereby realizing the capacitor degradation fault diagnosis of the power electronic circuit.

The invention relates to a computer-implemented method for determining an optimal topology for a power electronic circuit, in particular a voltage converter, an inverter or a power driver, wherein the topology of the power electronic circuit can be represented by a network using a netlist, comprising the steps: - Providing (S2) a variety of topologies with a respective circuit network of active and passive components, wherein the active components include semiconductor switches and / or diodes; - Providing (S1) requirements for the power electronic circuit, wherein the requirements are user-defined operating points (o m specify m=1... M); - Determining optimized component values ​​for the active and / or passive components for the multitude of topologies depending on an objective function (F) that evaluates the fulfillment of the requirements, - Determining (S10) a respective function value of a given decision objective function (V) for the multitude of topologies depending on the assigned optimized component values; - Selecting the topology from the multitude of topologies depending on the associated function value of the decision objective function (V).

A power electronic device is presented, comprising a hinged, cuboid housing, a first and parallel second base, a first and parallel side surface, and a first and parallel end surface, formed with a first and a second, preferably cup-shaped, sub-housing, and a power electronic circuit arrangement with a first printed circuit board having a first normal direction away from the base as part of the first sub-housing, and a second printed circuit board having a second normal direction away from the second base as part of the second sub-housing, wherein the first printed circuit board is arranged at a distance from the first base and the second printed circuit board is arranged at a distance from the second base, and wherein the first and second printed circuit boards are electrically connected by means of a plurality of connecting elements.wherein a mechanical hinge device connects the first and second partial housings in a hinged manner.

The invention relates to a power electronic circuit arrangement comprising a multilayer printed circuit board (10) with a conductor track arrangement formed in several layers, and comprising components arranged on the printed circuit board (10) and electrically contacted via the conductor track arrangement. In order to minimize heat loss in the case of intersecting conductor tracks with high currents, the circuit arrangement, according to the invention, includes a first busbar (20) and a second busbar (30) that crosses it in plan view and includes a current-sensing resistor (33), wherein in a crossing region of the two busbars (20, 30), the first busbar (20) is formed by conductor tracks formed in at least 80% of the layers, which are electrically connected to each other via vias (25).and the second busbar (30) is formed by a first busbar section (31) and a second busbar section (32), each formed by conductor tracks extending in at least 80% of the layers, including an uppermost of these layers, which are electrically connected to each other via vias (35), and by the current-sensing resistor (33), which is arranged on a top surface (12) of the circuit board (10) bridging the first busbar (20) and is electrically contacted on both sides of it by the conductor track formed in the uppermost layer of the respective first and second busbar sections (31, 32).

A power electronic device and / or system includes a power electronic circuit, a terminal for electrical coupling to the power electronic circuit, a sealed housing, a fuse disposed outside the sealed housing, and a comparator disposed within the sealed housing. A power electronic circuit is disposed within the sealed housing and electrical access is achieved through terminals extending out of the sealed housing. The fuse is electrically coupled to the power electronic circuit and the terminal. The comparator is coupled to receive a first current or voltage value from a first test point located on a first electrical path through the fuse between the terminal and the power electronic circuit and a second current or voltage value from a second test point located on a second electrical path through the fuse between the terminal and the power electronic circuit. A second test point is located on a second electrical path through the fuse between the terminal and the power electronic circuit.

The application relates to a magnetic fluid permanent magnetic hybrid bearing, which is mainly characterized in that magnetic fluid is added in a bearing gap, a permanent magnet is installed on a bearing rotating shaft, a controllable magnetic circuit is generated by controlling a coil through a power electronic circuit, the permanent magnet on the bearing rotating shaft is attracted, and the rotating shaft is suspended and rotates in a bearing inner cavity. The application also optimizes a control method of the hybrid bearing, improves effective stiffness and damping of high-frequency oscillation outside a controller bandwidth, and improves dynamic performance of the hybrid bearing. Meanwhile, the application solves the problems of high power consumption and high-frequency mode control of a traditional magnetic bearing through a magnetic fluid and permanent magnetic hybrid control scheme, and has good bearing capacity and dynamic performance.

The invention discloses a power electronic circuit real-time simulation method based on an LC switch and a reverse Euler method and related equipment, and the method comprises the steps: modeling a target power electronic circuit, modeling a switch element in the target power electronic circuit as an LC switch with equal capacitance admittance and inductance admittance, and obtaining a circuit model; discretizing dynamic element characteristics of each element model in the circuit model by adopting a reverse Euler method, and determining an inverse branch admittance matrix of each branch in the circuit model; based on this, according to the invention, through the admittance constant characteristic in the LC switch, the disadvantage of admittance matrix element mutation during switch state switching is eliminated from the modeling level; according to the invention, the FPGA can be adopted, and the branch state of the circuit model is updated based on the inverse branch admittance matrix. Therefore, according to the power electronic circuit real-time simulation method based on the LC switch and the reverse Euler method, a single simulation step length is shortened by integrating multiple dimensions, and the power electronic circuit real-time simulation method based on the LC switch and the reverse Euler method can meet the real-time simulation requirement of a high-dynamic power electronic circuit.

The utility model discloses a dry battery output circuit and equipment, and relates to the technical field of power electronic circuits, the dry battery output circuit comprises an acquisition module, a control module and an output module; the output module is respectively connected with the dry battery, the control module and the load; and the acquisition module is also connected with a dry battery and the control module. The acquisition module is used for acquiring the voltage of the dry battery, converting the output voltage into a first detection signal and transmitting the first detection signal to the control module. The control module is used for generating a power-off signal and transmitting the power-off signal to the output module when the first detection signal is not in a first preset range no matter whether the voltage is reduced due to too low electric quantity or the voltage is increased abnormally due to abnormal conditions. And after receiving the power-off signal, the output module can quickly cut off voltage output to the load, so that the dry battery is effectively prevented from being damaged by over-discharge or abnormal voltage of the battery.

This application relates to the field of power electronic circuit technology and discloses a current-source type high-frequency drive circuit and driving method, which corresponds to the current-source type high-frequency drive circuit. This application achieves rapid switching of power switching transistors to reduce switching losses, while simultaneously recovering gate energy dissipated in traditional drivers to reduce drive losses; the boost function reduces the on-resistance of the power switching transistors and reduces conductivity losses; the bipolar gate voltage reduces the phenomenon of false turn-on of the switching transistors caused by crosstalk; under high-frequency, low-power conditions, the negative drive voltage eliminates the current transfer phenomenon present in traditional current-type drives to a certain extent; under high-frequency, high-power conditions, the bidirectional switch completely eliminates current transfer, further improving drive capability and achieving high-current rapid drive; the calculation of the duty cycle suppresses the overshoot of the drive voltage during the dead time, ensuring stable drive operation.

A method (100) for determining performance data of electronic power circuits is disclosed, comprising determining several switching energy values ​​(110) during a period of a control signal of the electronic power circuit; and determining the performance data (120), which includes a switching cycle energy value determined on the basis of the several switching energy values ​​and a number of determinations of the several switching energy values. Furthermore, a computing unit for determining performance data, configured and set up to execute the method, is disclosed.

The circuit arrangement comprises a power electronics circuit (14) with at least one power electronics module (7, 8, 9), a filter device (6), a heat sink (12), a connection (13) and at least one busbar (10, 11), wherein the filter device (6) is at least partially coupled with the busbar (10, 11), the busbar (10, 11) electrically connecting the connection (13) with the power electronics circuit (14), wherein the power electronics module (7, 8, 9) and at least one section (15) of the busbar (10, 11) are thermally connected with the heat sink (12).

An electrolysis plant (300) with enhanced fault ride through capability comprises a transformer system (301) comprising an autotransformer (302) having a primary side connectable to an AC power grid (303) via a point of connection (304) and a secondary side with multiple taps (305), a rectifier system (306), and a set of electrolyser modules (307, 308, 309, 310), wherein the rectifier system (306) is connected to receive transformed AC power from the transformer system (301) and to provide DC power to the set of electrolyser modules (307, 308, 309, 310), and wherein an autotransformer secondary side electrical tap connection is selectively established as an electrical power transmission path through an on-load tap-changer OLTC (312), and wherein the OLTC (312) comprises a set of power electronic circuits and is configured to select one of the taps (305) and establish the corresponding electrical tap connection through at least one of the power electronic circuits as part of the electrical power transmission path.

The invention relates to a power electronic circuit arrangement having a first substrate conductor track on which a power semiconductor component is arranged and having a component contact region on a surface facing away from the first substrate conductor track, and a second substrate conductor track on which the power semiconductor component is arranged, the power electronic circuit arrangement has a plurality of uninterrupted wire-bonding connections, each wire-bonding connection having a first bonding leg on the second conductor track, a second bonding leg on the component contact region, and a third bonding leg on the second conductor track, wherein the first engaging leg and the third engaging leg are arranged adjacent to each other.

The invention relates to a device (10) for converting direct current (DC) voltage into alternating current (AC) voltage for a vehicle (40), comprising at least one electric motor connection (30), at least one charging station connection (32), and at least one power electronic circuit (14) for converting DC voltage into AC voltage, with at least one DC voltage connection (26) for connecting to a vehicle battery (12) and at least one AC voltage connection (28), which, during driving operation, is connected to the electric motor connection (30) for supplying AC voltage to an electric motor (16), wherein, during stationary operation, the at least one AC voltage connection (28) can be selectively connected, by means of a switching device (20), either to the at least one electric motor connection (30) or to the at least one charging station connection (32) for supplying AC voltage to a charging station (18). The device (10) has a reduced number of components.

The invention discloses a power device junction temperature sensing method and device based on load inductive current change, and relates to the technical field of power electronic circuit safety. The method has the remarkable advantages of non-contact, low cost and high precision. According to the method, an original current detection channel of a system is utilized, the attenuation characteristic of load current in the turn-off process of a power device is analyzed, the equivalent turn-off time is extracted, the mapping relation between the equivalent turn-off time and the junction temperature is established, and therefore junction temperature online monitoring without an additional sensor is achieved. Compared with the traditional voltage measurement or embedded sensing scheme, the method provided by the invention can avoid high-voltage node sampling and complex packaging transformation, and reduce the system risk and hardware cost. The algorithm is based on a clear electromagnetic transient mechanism, the calculated amount is small, the real-time performance is high, and junction temperature estimation can be completed at the microsecond level.

Circuit carrier (ST) for a power electronic circuit arrangement (SA), comprising: - a low-voltage area (NB) in which at least one first, in particular internal, conductor track (LB1) is arranged for the establishment of a first electrical connection of a low-voltage circuit of the circuit arrangement (SA); - a high-voltage area (HB) in which at least a second, in particular internal, conductor track (LB2) is arranged for the production of a second electrical connection of a high-voltage circuit of the circuit arrangement (SA); - a conductor-free boundary area (AB) between the low-voltage area (NB) and the high-voltage area (HB), which spatially isolates the low-voltage area (NB) from the high-voltage area (HB); and - a thermally conductive, in particular internal, heat transfer rail (WS) for heat transfer between the low-voltage area (NB) and the high-voltage area (HB), which is arranged in the boundary area (AB) and extends into the low-voltage area (NB) and / or the high-voltage area (HB), characterized in that - the second conductor track (LB2) has a second conductor track section (LA2); - the heat transfer rail (WS) has a second rail section (WA2); and - the second conductor track section (LA2) and the second rail section (WA2) overlap in the vertical direction (VR).

An arc fault mitigator includes a sensor configured to detect at least one of users in proximity to a power system protection device, light within the power system protection device, and an overcurrent within the power system protection device; a mechanical switching device comprising a fast mechanical circuit interrupter and an actuator; a power electronic circuit coupled in parallel to the mechanical switching device and including a current commutator configured to commutate current from the fast mechanical circuit interrupter to the power electronic circuit when the fast mechanical circuit interrupter is open, a power electronic circuit interrupter configured to interrupt the current from the fast mechanical circuit interrupter to the power electronic circuit when the fast mechanical circuit interrupter is open, and a current limiter configured to limit the current from the fast mechanical circuit interrupter to the power electronic circuit. The power electronic circuit interrupter is configured to allow current to pass through within a range of threshold current, and the current limiter is configured to limit the current flowing through the power electronic circuit interrupter; and a controller including a trip control mechanism configured to control operation of the mechanical switching device and the power electronic circuit.

The utility model discloses a control circuit and device for an RGB lamp, and relates to the technical field of power electronic circuits, and the control circuit comprises a control module, a power-on module and a discharge module. The control module is respectively connected with the power-on module and the discharge module; and the power-on module and the discharge module are respectively connected with an RGB (Red, Green and Blue) lamp. The control module is used for outputting a discharge signal to the discharge module; the discharge module is used for controlling the RGB lamp to release charges after receiving the discharge signal; the control module is also used for outputting a power-on signal to the power-on module after the RGB lamp releases the charges; and the power-on module is also used for supplying power to the RGB lamp after receiving the power-on signal. By introducing the discharging module, it can be ensured that the RGB lamp effectively releases internal residual charges before being powered on each time, and therefore the problem of lamplight flickering caused by voltage superposition is avoided.