184 results about "Galvanic isolation" patented technology

The invention relates to microwave-free sensor technology with NV centers in diamond. In contrast to the prior art, the intensity of the pump radiation is not PWM-modulated, but monofrequency and sinusoidally modulated. Further measures, such as the use of semiconductor-based pump radiation sources and operation with an offset, prevent the formation of harmonics in the temporal intensity profile of the pump radiation irradiating the NV centers in the sensor element. This allows the sensor system to use the phase shift to determine measured values ​​of external physical parameters such as magnetic flux density, acceleration, temperature, etc., within a recognized and disclosed frequency range of the intensity modulation of the pump radiation, thereby minimizing the influence of noise from the pump radiation source. The galvanic isolation does not need to be compromised by cables from additional sensors.

A converter system, e.g., for vehicle-to-vehicle charging, includes galvanically-isolated modular first and second converters having the same maximum voltage rating, a direct current (DC) voltage bus interconnecting the converters, and an electronic controller. An input voltage to the DC bus is converted into an output voltage via switching control signals to the modular converters. The system's voltage rating may equal the maximum of the input and / or output voltage, or it may equal the maximum input voltage and be about 50-percent of the maximum output voltage. The maximum input and output voltages may be equal. When the voltage rating is about 50-percent of the maximum input voltage, capacitors may be connected in parallel with the modular converters on an input side thereof. Switching circuits may be connected to the bus to control the conversion of the input voltage via switching control signals.

This document describes, among other things, a vehicle power system that includes a traction battery, a six-phase inverter divided into two groups of six switches, a six-phase motor, and a pair of switches. In drive mode, the switches configure the inverter to connect the traction battery and the motor. In plug-in mode, the system reconfigures so that one group of switches connects an AC source to the motor, while the other group connects the motor to the traction battery.

A microelectronic device including an isolation device with a stabilized dielectric. The isolation device includes a lower isolation element, an upper isolation element, and an inorganic dielectric plateau between the lower isolation element and the upper isolation element. The dielectric sidewall of the inorganic dielectric plateau is stabilized in a nitrogen containing plasma which forms a SiOxNy surface on the dielectric sidewall of the inorganic dielectric plateau. The SiOxNy surface on the dielectric sidewall of the inorganic dielectric plateau reduces ingress of moisture into the dielectric stack of the inorganic dielectric plateau.

The invention relates to microwave-free sensor technology with NV centers in diamond. In contrast to the prior art, the intensity of the pump radiation is not PWM-modulated, but monofrequency and sinusoidally modulated. Further measures, such as the use of semiconductor-based pump radiation sources and operation with an offset, prevent the formation of harmonics in the temporal intensity profile of the pump radiation irradiating the NV centers in the sensor element. This allows the sensor system to use the phase shift to determine measured values ​​of external physical parameters such as magnetic flux density, acceleration, temperature, etc., within a recognized and disclosed frequency range of the intensity modulation of the pump radiation, thereby minimizing the influence of noise from the pump radiation source. The galvanic isolation does not need to be compromised by cables from additional sensors.

An apparatus for transferring power includes a first power converter coupled to a first power interface, an isolation transformer having a first transformer coil coupled to the first power converter and a second transformer coil magnetically coupled to and galvanically isolated from the first transformer coil, a second power converter coupled to the second coil of the isolation transformer and to a second power interface, a third transformer coil magnetically coupled to and galvanically isolated from the first transformer coil and magnetically coupled to the second transformer coil, and a third power interface for connecting the third transformer coil to a wireless power transmission (WPT) resonator.

In some examples, a method comprises communicating first data between a first circuit and a second circuit via a differential communication channel across a galvanic isolation barrier within a circuit package, wherein the first data is coded via a first coding technique that comprises ON-OFF shift Keying (OOK) with a differential carrier signal. The method also includes communicating second data between the first circuit and the second circuit via the differential communication channel across the galvanic isolation barrier within the circuit package, wherein the second data is coded via a second coding technique comprises differential pulse coding.

A modular, multiport power conversion system includes a central transformer with a plurality of windings inductively connected to the central transformer. The plurality of windings are connected to ports able to connect to both AC and DC-devices, including both power sources and power consuming nodes. Each port is able to be selectively galvanically isolated, such that a controller is able to determine from which ports power is drawn and / or to which ports power is transferred. The system is operable to use zero voltage switching (ZVS) and / or zero current switching (ZCS) for each port to reduce power loss and increase efficiency, especially for high frequency embodiments.

Systems and apparatus for enabling efficient energy harvesting are disclosed. A power conversion apparatus includes at least first and second inductors, a rectifier, a load, and at least first and second energy storage capacitors. The first inductor is galvanically isolated from the second inductor, and each of the first inductor and the second inductor is an output inductor of the power conversion device, and the rectifier is configured to charge at least the first energy storage capacitor and the second energy storage capacitor. Each of the at least first energy storage capacitor and the second energy storage capacitor is coupled to a load, and an interconnection of the at least first energy storage capacitor and the second energy storage capacitor is switched between at least one of an electrical series connection to an electrical parallel connection and an electrical parallel connection to an electrical series connection.

A power conversion system (1) comprises a rectifier circuit (11) for converting an AC voltage to a distribution bus voltage; a solid state transformer, SST, (30) having an input side DC link (20), an internal medium frequency AC link (502), and an output side DC link (535 ), the SST (30) being configured for converting between the distribution bus voltage on the input side (501) and a DC target voltage on the output side (503), the SST (30) including at least one medium frequency transformer, MFT (511), in the AC link (502) for galvanic isolation, wherein the SST (30) includes multiple solid state transformer, SST, cells interconnected on the input side (501), the interconnection including a parallel connection, a series connection, or a combination thereof.

The utility model discloses a multichannel isolation type current and voltage signal processing board card comprising a board card main body, and the board card main body is provided with a plurality of signal input channels, a signal isolation module, a signal processing module, a microprocessor and a signal output interface. Each signal input channel comprises a current input port and a voltage input port, an isolation unit of the signal isolation module comprises a current isolation circuit and a voltage isolation circuit, and isolation input of multichannel signals is achieved. The signal processing module carries out amplification, analog-to-digital conversion and filtering processing on the isolated signals, the microprocessor carries out operation processing on the signals, and the signal output interface outputs the processed signals. According to the utility model, inter-channel signal interference and external electromagnetic interference are effectively prevented, the signal acquisition precision and the anti-interference capability of the board card are improved, and the connection requirements of various devices are met.

The utility model discloses a voltage and current isolation sampling circuit, which comprises a current isolation sampling circuit and a voltage isolation sampling circuit, and is characterized in that a current sampling end of the current isolation sampling circuit is connected in series in a circuit bus to be sampled; a current sampling output end of the current isolation sampling circuit is connected with a signal acquisition port of the central processing unit; the voltage sampling end of the voltage isolation sampling circuit is connected with voltage needing to be sampled in a circuit to be sampled, and the voltage sampling signal output end of the voltage isolation sampling circuit is connected with the signal acquisition port of the central processing unit. According to the utility model, the current isolation sampling end and the output sampling signal end are respectively connected with current in a sampled circuit and a signal acquisition port of the central processor, and parameters of circuit components are reasonably set, so that isolated acquisition of current and voltage and high integration precision are realized.

A radio frequency (RF) integrated gate driver includes a galvanically-isolated (GI) waveguide and an RF rectifier. The GI waveguide is configured to receive an RF signal from an RF source and to generate a rectifier input signal based on the RF signal. The RF rectifier is configured to receive the rectifier input signal from the GI waveguide and to generate, based on the rectifier input signal, a rectifier output signal to drive a gate of a power switch device.

The present invention relates to a charging system (1) having at least one DC power connector (2, 3) and at least one AC power connector (8) and a battery power connector (6), wherein the battery power connector (6) is capable of being connected to a battery (7), particularly a vehicle high-voltage battery (7), wherein at least one AC power connector (8) is connected to a rectifier (10), wherein a first DC voltage converter (11) is present. Electrical energy or current can be distributed in a highly efficient and optimized manner by means of a first DC voltage converter (11) connected to the DC side of a rectifier (10), wherein the first DC voltage converter (11) is configured as a boost / buck converter, wherein a current isolation element (12) is connected to the first DC voltage converter (11) and a battery power connector (6), wherein at least one DC power connector (2, 3) is connected to the rectifier (10) and the first DC voltage converter (11) via a first switch group (S1a), and is connected to the first DC voltage converter (11) and the current isolation element (12) via a second switch group (S1b).

A system includes an inverter including: a first galvanic isolator separating a low voltage area from a high voltage area, the first galvanic isolator having a first galvanic isolator output path; a second galvanic isolator having a second galvanic isolator output path; an amplifier connected to the first galvanic isolator via the first galvanic isolator output path, and connected to the second galvanic isolator via the second galvanic isolator output path, the amplifier having a first amplifier output path and a second amplifier output path; a comparator connected to the amplifier via the first amplifier output path and the second amplifier output path, the comparator having a first comparator output path and a second comparator output path; and a pulse reshape and envelope detector connected to the comparator via the first comparator output path and the second comparator output path.

The invention discloses a voltage converter arrangement for galvanically isolated power transmission between a three-phase alternating voltage connection and a direct voltage connection. The voltage converter arrangement comprises a transformer having three primary windings and one secondary winding. The three primary windings of the transformer are arranged in a delta configuration, with a primary winding and a preferably bipolar switching element being arranged in series in each case.

The invention relates to a small load isolation switch device for a bus system. The load disconnector device includes a fuse housing compartment for a fuse. A simple and small sized method for detecting fuse failure within the containment compartment is provided. Fuse faults are indicated by galvanic isolation signals.

The utility model relates to the technical field of current detectors, and particularly discloses an isolated current detector based on bus communication, which comprises a detector body. The detector body is provided with a current isolation circuit, a protection sampling circuit, a current amplification circuit, an RC filter circuit, a reference voltage generation circuit, a main control circuit, a two-bus communication circuit, a DCDC step-down circuit and an LDO voltage stabilizing circuit, and the protection sampling circuit is electrically connected with the current isolation circuit and the current amplification circuit. The RC filter circuit is electrically connected with the current amplification circuit and the main control circuit, and the two-bus communication circuit, the DCDC step-down circuit and the LDO voltage stabilizing circuit are electrically connected with the main control circuit. According to the utility model, internal and external currents are isolated by arranging the current isolation circuit, and current signals output by the external current transformer can be accessed without polarity, so that construction wiring is facilitated, and on-site rapid installation is facilitated.

The present invention relates to an electrodynamically synchronized DC-to-AC inverter / converter system (100) that generates a near-sinusoidal output with minimal reliance on high-frequency power electronic switching. A motor-driven cyclic connector (114) sequentially connects multiple voltage stages from a battery or capacitor bank (104), forming a stepped waveform that is smoothed by a reactor (140). In standalone mode, a DC shunt motor (112DM) provides the necessary rotation; for grid-tied operations, a synchronous motor (112SM) automatically locks the output to the grid frequency. The high- current flow bypasses the motor windings, reducing switching losses, electromagnetic interference, and complex gating circuits. Protective devices (116) isolate fault conditions, while optional transformers (130) enable voltage stepping or galvanic isolation. By avoiding high-frequency gating, the invention offers robust, efficient performance for renewable energy systems and other power electronics applications. Simplicity and scalability make it ideal for industrial applications.

A system comprises an inverter configured to convert DC power from a battery to AC power to drive a motor, wherein the inverter includes: a galvanic isolator separating a high voltage area from a low voltage area; a low voltage phase controller in the low voltage area, the low voltage phase controller configured to receive a clock reference signal; and a high voltage phase controller in the high voltage area, the high voltage phase controller configured to align a clock reference signal of the high voltage phase controller with the clock reference signal of the low voltage phase controller.

An energy transfer element that provides galvanic isolation in a power controller is disclosed herein. A magnetic core assembly has an aperture. A first power winding is positioned within the magnetic core assembly. A first communication winding and a second communication winding are positioned within the aperture such that both the first and second communication windings are perpendicular to the first power winding. The magnetic flux density produced by current in the first power winding is perpendicular to the magnetic flux density produced by current in the first communication winding and the second communication winding. For a power controller having an input-referenced controller and an output-referenced controller, the energy transfer element provides galvanic isolation between the controllers because the communication windings are electrically insulated from each other and from the magnetic core assembly.

A microelectronic device including an isolation device with a stabilized dielectric. The isolation device includes a lower isolation element, an upper isolation element, and an inorganic dielectric plateau between the lower isolation element and the upper isolation element. The dielectric sidewall of the inorganic dielectric plateau is stabilized in a nitrogen containing plasma which forms a SiOxNy surface on the dielectric sidewall of the inorganic dielectric plateau. The SiOxNy surface on the dielectric sidewall of the inorganic dielectric plateau reduces ingress of moisture into the dielectric stack of the inorganic dielectric plateau.

The invention relates to a transmission device (100) comprising two galvanically isolated sub-circuits (110, 50). The first sub-circuit (110) comprises a carrier signal source (116) for outputting a carrier signal, a digital signal source (112) for outputting a binary signal level, and a logic component (118) for performing an AND operation on two input signals, the logic component having two logic inputs and a first logic output (130), the logic inputs being connected to the signal level output and the carrier signal source output, respectively. The second sub-circuit (150) comprises a signal input (154), a signal output (164), and a first RC element (160, 162), the signal input (154), the signal output (164), and the RC element (160, 162) being connected in parallel with respect to a second reference potential. A first isolation capacitor (202) is connected between the first logic output and the signal input for galvanic isolation. A second isolation capacitor (204) is connected between a first reference potential and the second reference potential for galvanic isolation.

This utility model pertains to electrical engineering, specifically to step-up converter devices incorporated into backup power supply devices for high-voltage loads obtained from a low-voltage battery. The converter is designed for highly efficient conversion of energy obtained from a low-voltage source, such as a battery, into a high, stabilized voltage for powering high-voltage loads, such as inverters or loads capable of being supplied with constant voltage. The technical result of this utility model is an increase in the efficiency of the output voltage while minimizing switching losses through soft switching and operation with low currents; increased reliability; and an expansion of the device's scope of application. This technical result is achieved through a combination of essential features.The essence of the utility model is that a two-link converter with galvanic isolation is connected to a primary source (1) and to an unregulated push-pull resonant step-up converter (2) connected to a control circuit (3) configured to form symmetrical current pulses alternately flowing from a common wire to a source through its half-winding of a transformer TR1 with a frequency set by the control circuit (3), wherein the unregulated push-pull resonant step-up converter (2) is connected to a step-up stabilized converter (4) connected to a control circuit (5) configured to convert a low, unstabilized input voltage at the terminals of the primary source (1) into a stabilized high voltage at the load (6).

An integrated circuit (500) comprises a semiconductor layer (130) with a first section (131) in a first device area (310) and a second section (132) in a second device area (320). A galvanic isolation structure (330) is formed between the first section (131) and the second section (132) of the semiconductor layer (130). A capacitive coupling element (200) is formed on a first surface (139) of the semiconductor layer (130). The capacitive coupling element (200) comprises a first lower electrode (210) in the first device area (310) and a capacitor dielectric (250) that separates the first lower electrode (210) from an upper electrode (290) extending over the galvanic isolation structure (330). The first lower electrode (210) is signal-connected to a first circuit element (315) in the first device area (310).The upper electrode (290) is operatively connected to a second circuit element (325) in the second device area (320).

The invention relates to a bidirectional converter (100) for connecting an electrochemical energy conversion system to an alternating current network (200), comprising at least three converter arms (110), wherein each of the three converter arms (110) - at least one electrochemical conversion element (111) for storing and / or releasing energy via an electrochemical process and - at least one power electronics system (112) connected to the electrochemical conversion element (111), which is designed to establish galvanic isolation between the electrochemical conversion element (111) and the AC network (200), wherein the at least one electrochemical conversion element (111) and the power electronics system (112) form a converter sub-module (120), wherein any number of converter sub-modules (120) can be arranged within the at least three converter arms (110), wherein the converter arms (110) are arranged in a delta shape such that one end of a converter arm (110) is connected to a respective phase (210, 220, 230) of the AC network (200) and to one of the remaining converter arms (110). The invention further relates to a method for bidirectionally converting a voltage.

The galvanic isolation transformer (400) comprises: - a magnetic core (102); and - a primary winding (104A-C) and a secondary winding (106A-C), wound around the magnetic core (102) so as to be magnetically coupled to each other.It further comprises two electrically insulating screens (112, 114, 502, 504) interposed between the primary winding (104A-C) and the secondary winding (106A-C), the two electrically insulating screens (112, 114, 502, 504) being made of two different materials, such that the first material has a value for a first property at least 10%, preferably 20%, higher than the second material, and such that the second material has a value for a second property at least 10%, preferably 20%, higher than the first material, the first and second properties being taken from: operating temperature range, dielectric strength, inverse dielectric constant, volume resistance, chemical resistance, mechanical properties, non-flammability, heat capacity, aging, and thermal conductivity. Figure for the abstract: Fig. 5.

The invention relates to a charging connector (1) for an electric or hybrid vehicle, with a locking mechanism (2) for locking and unlocking, which has an actuator (4) with which a movement can be performed and which is connected to two galvanically connected contact elements (5, 6) such that the movement of the actuator (4) during locking causes the contact elements (5, 6) to run along a conductor track (7, 8) in one direction and the movement of the actuator (4) during unlocking causes the contact elements (5, 6) to move along the respective conductor track (7, 8) over the same distance as during locking in the opposite direction, one of the two conductor tracks (8) is galvanically interrupted by means of a galvanic isolation (9), the contact element (6) running along the conductor track (8) with the galvanic isolation (9) has two spaced-apart contacts,The contact elements (6) are provided with contact surfaces (10) that establish galvanic contact with the conductor track (8), and the contact surfaces (10) and the galvanic isolation (9) are geometrically designed such that when the contact element (6) having the two contact surfaces (10) runs along the conductor track (8), if one contact surface (10) is not in galvanic contact with the conductor track (8) due to its position within the galvanic isolation (9), the other contact surface (10) is always in a position outside the galvanic isolation (9) on the conductor track (8), so that the other contact surface (10) is in galvanic contact with the conductor track (8). In this way, a means is provided to monitor the locking and unlocking process without interruption.

A system for detecting electrical current in water includes a controller board and at least one sensor board communicatively coupled thereto. The controller may include a microcontroller configured to process signals, a display to show status information, at least one light-emitting diode to generate visual alerts, a siren for audible alerts, at least one button for user input, and a communication module to transmit data to a remote server. Each sensor board may include a tetrahedral electrode assembly configured for submersion in water to measure electrical current in three-dimensional space, a sensor microcontroller for processing measurements and generating wake-up signals, and galvanic isolation circuitry. A power management system may manage power from grid, solar, and battery sources, and a cable system may provide power and communication between the controller and sensor board.

Aspects of a re-timer-based isolator provide galvanic isolation between a first side of a system including a high voltage source and a second side of the system that may contact a person. An equalizer arranged with a physical layer on a first substrate is isolated from re-timer components arranged on a second substrate.