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WO/2020/133578A1 |
The present application relates to an overcurrent protection system, comprising a storage circuit, a detection circuit, a calculation circuit, and a search circuit. The storage circuit is used for storing a preset current effective value...
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WO/2020/135356A1 |
Some embodiments of the present application provide a protection circuit and a battery management system. In some embodiments of the present application, the protection circuit comprises a first protection module and a freewheel module; ...
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WO/2020/137452A1 |
The purpose of the present invention is to provide a protection system capable of suppressing, using a pyro-switch, energy generated when cutting battery wiring.　The protection system has: a shunt resistor 100 for measuring the value o...
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WO/2020/130859A1 |
Intrinsically-safe electronic safety relay consists of an electronic relay (EP) connected through galvanic signals isolation system (UIGS) with two microcontrollers (MK1) and (MK2), which are connected with at least one serial communicat...
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WO/2020/132440A1 |
A circuit for preventing sparks. The circuit having a power storage component having a first power storage end and a second power storage end; a power source electrically connected to the power storage component, the power source having ...
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WO/2020/131979A1 |
A protective circuit can include an AC line configured to provide power from an AC source, and a first protection circuit coupled to the AC line and implemented to be electrically parallel with a load circuit. The first protection circui...
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WO/2020/126003A1 |
A guided wave radar level gauge comprising a housing (10) providing explosion proof protection and having an intrinsically safe output (27), a transmission line probe (8) connected to the IS output. The housing encloses radar level gauge...
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WO/2020/120327A1 |
The invention is related to a luminaire comprising a lighting module for emitting light, a driver for driving operation of the lighting module, a runtime overvoltage protection device for protecting the lighting module and the driver fro...
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WO/2020/120326A1 |
The invention relates to a device (10) for pre-charging an electric power grid comprising: - an electric power supply line (L1) for supplying power to the electric power grid (10), including a main transistor (Q1); - a control module (12...
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WO/2020/119531A1 |
A surge protection circuit for a power interface, comprising: a surge/ESD suppression circuit (10), a fast response switch circuit (20) and a fast response voltage bleeder circuit (30), wherein one end of the surge/ESD suppression circui...
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WO/2020/119942A1 |
A solid state circuit breaker apparatus includes a solid state switch (230), a current sensor (210), and a control circuit (240). The control circuit is programmed to operate the solid state switch by, in response to receipt of a signal ...
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WO/2020/113564A1 |
A laser receiving circuit, a distance measurement device (100, 200), and a mobile platform. The laser receiving circuit comprises a photoelectric conversion circuit and a protective circuit. The photoelectric conversion circuit receives ...
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WO/2020/114410A1 |
A transient voltage suppression apparatus capable of actively providing load energy and suppressing transient voltage changes, comprising a first capacitor (C1) and a detection switch (A), the detection switch (A) being connected to the ...
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WO/2020/108035A1 |
Disclosed are a surge protection device and system. The device comprises: a first switch type surge protector (PG), a second switch type surge protector (SG) and an impedance device (SI); the second switch type surge protector (SG) being...
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WO/2020/108034A1 |
A surge protection device and system comprise an impedance device, a voltage-limiting surge protector, and a switch surge protector. The impedance device is connected in parallel to the voltage-limiting surge protector, and a parallel br...
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WO/2020/107128A1 |
A control system for an electric motor in a manufacturing environment, the control system including: a safety relay; and a power reduction circuit, wherein, when the safety relay is triggered, the power reduction circuit automatically li...
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WO/2020/106951A1 |
A circuit that indicates a warning of low battery life so that an instrument supported by a battery, may have the battery replaced before the battery dies. A switch and series resistor may be connected between the battery and a capacitor...
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WO/2020/101238A1 |
This fault current reduction apparatus comprises: a main current path including a mechanical switch; and an auxiliary current path having an impedance and connected to the main current path in parallel. The main current path further incl...
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WO/2020/099082A1 |
The invention relates to a controllable electric circuit element with at least one functional orientation as precharging resistor (7), more particularly for use in a power distribution system; a circuit configuration with a controllable ...
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WO/2020/093482A1 |
A protective circuit (301) and a display drive device. The protective circuit (301) comprises: when an electrical overstress problem occurs in a logic signal, the voltage of an output end of a controlled switch circuit (100) is greater t...
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WO/2020/094435A1 |
The invention relates to a direct current switch for coupling two direct current networks, a load-side direct current network particularly comprising load-side capacitors, said direct current switch comprising: one or more power semicond...
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WO/2020/096591A1 |
An apparatus, system, and method are disclosed for protecting a biological system (104) from molecular damage due to electrostatic discharge. The apparatus, system, and method include an electrical contact point (106), a resistive elemen...
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WO/2020/094239A1 |
The present invention relates to the field of transient protection, with the general purpose to avoid damage to electronic components, circuits and/or equipment. The invention provides a protection circuit to protect an electronic circui...
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WO/2020/094459A1 |
The invention relates to a circuit arrangement (S) for limiting an inrush current, comprising: an input terminal (E) for connecting to a voltage supply means; an output terminal (A) for connecting a load, for example a DC-DC converter; a...
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WO/2020/087599A1 |
An intermediate direct-current loop (10) of a traction converter, and a traction converter. The intermediate direct-current loop of a traction converter comprises a grounding switch discharging circuit (11), a grounding detection circuit...
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WO/2020/090923A1 |
A semiconductor device including a battery-side first terminal, an inverter circuit-side second terminal, and a transistor. The semiconductor device is configured so as to permit the supply of current from the first terminal to the secon...
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WO/2020/092256A1 |
A medical system includes a first electrical circuit, a second electrical circuit electrically isolated from the first electrical circuit, an optical isolator circuit coupled between the first and second electrical circuits, and a common...
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WO/2020/087811A1 |
Disclosed is a method for suppressing a fault phase residual voltage of a resonant grounding system based on precise tuning control on the active adjustable complex impedance. The method comprises: tracking a fault phase voltage to groun...
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WO/2020/090924A1 |
A semiconductor unit provided between a motor and an inverter circuit that controls the motor. The semiconductor unit includes a transistor and a control unit. The transistor: is provided between the inverter circuit and a positive elect...
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WO/2020/082660A1 |
Provided by the present application are a direct current energy dissipation apparatus and a control method therefor. The direct current energy dissipation apparatus comprises: at least one energy consumption unit, comprising at least two...
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WO/2020/082856A1 |
The present application discloses a high-voltage short circuit current limiting device and a control method thereof, and a quick switch module for the high-voltage short circuit current limiting device. The high-voltage short circuit cur...
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WO/2020/081217A1 |
A system for high voltage protection may comprise a high voltage protection module electrically connected to a transmitter module and a receiver module and a muting module connected to the high voltage protection module and the receiver ...
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WO/2020/074116A1 |
Method for monitoring the operation of an electric motor, and lifting mechanism, wherein the motor current is detected, wherein the electric motor has a, in particular electromagnetically operable, brake, in particular a holding brake, w...
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WO/2020/073621A1 |
The present invention relates to a lightning surge inhibiting circuit and a drive power supply, comprising a fuse, a first inhibiting circuit, a second inhibiting circuit, a bleeder circuit and an equalization circuit; the fuse accesses ...
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WO/2020/069894A1 |
A protection circuit (20) comprising an inrush current detector operable to detect an inrush current from a DC link (11). The inrush current detector (Q1, 21) comprises a transistor switch (Q1) that is turned on in normal operation of th...
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WO/2020/072516A1 |
A circuit interrupter includes a solid-state switch and a mode control circuit. The solid- state switch is serially connected between a line input terminal and a load output terminal of the circuit interrupter. The mode control circuit i...
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WO/2020/062817A1 |
Disclosed are a control circuit for suppressing a surge voltage and current of a power supply, and a power supply, comprising: a driving circuit (11) for generating a driving signal according to an output voltage, a voltage monitoring ci...
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WO/2020/064112A1 |
The invention relates to an arrangement comprising a polyphase transformer (5) which has primary windings (14) and secondary windings (20). The secondary windings (20) are connected to form a star circuit, the star point (23) of which is...
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WO/2020/064824A1 |
The invention relates to a matrix light source designed to be supplied with electrical voltage and having a plurality of elementary light sources with an electroluminescent semiconductor element and a common substrate in contact with an ...
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WO/2020/065545A1 |
The present invention relates to a protection apparatus (100) for protecting an electrical circuit. The protection apparatus comprises a thermal protection device (10) for interrupting the electrical circuit at a specific temperature and...
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WO/2020/063572A1 |
A rail over-voltage protection device (OVPD) that uses power electronics and microcomputer control technology, as well as high-power power electronic device developments, wherein a main circuit uses a plurality of sets of thyristors, an ...
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WO/2020/063109A1 |
Provided is an electrostatic discharge (ESD) protection circuit (10), comprising a reverse ESD protection module (110) and a forward ESD protection module (100); the reverse ESD protection module (110) comprises a first resistor (111), a...
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WO/2020/064627A1 |
The invention relates to a matrix light source having a plurality of elementary light sources with a light-emitting semiconductor element and a common substrate. The substrate comprises, for at least one of the elementary light sources, ...
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WO/2020/068479A1 |
Fault protection devices for electrical distribution systems and related reclosing methods are provided. One exemplary method of reclosing a switching element of a fault protection device after fault detection involves pulsing the switch...
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WO/2020/064308A1 |
Embodiments presented herein relates to an externally gapped line arrester, EGLA, for transmission lines. The EGLA comprising a series varistor unit, SVU, (1) having a first end and a second end, the SVU configured to be connected betwee...
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WO/2020/058162A1 |
The invention relates to a device for coupling two DC grids comprising source-side and load-side capacitors (7, 8) by means of a switching device (1) for regulating the current. The switching device (1) comprises two switching modules (1...
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WO/2019/002528A9 |
The invention relates to a method for electrically connecting a transformer (316) to an electrical network (320) having a network voltage via a power switching device (322), wherein the transformer has a primary side (324) and a secondar...
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WO/2020/059262A1 |
This inrush current suppression device is an inrush current suppression device which suppresses an inrush current flowing from a DC power supply through a mechanical switch, and comprises: a first capacitor having one end connected to a ...
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WO/2020/056908A1 |
Embodiments of the present application provide an overvoltage protection method, an overvoltage protection apparatus, and a display apparatus. When a voltage value of an output signal is greater than a first preset voltage threshold, whe...
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WO/2020/051832A1 |
The present application relates to the technical field of electronics, and provided thereby are an electrostatic discharge protection circuit and an integrated circuit chip. The electrostatic discharge protection circuit comprises: a fie...
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