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Patent Searching and Data


Matches 1 - 50 out of 7,608

Document Document Title
WO/2021/001785A1
One embodiment is a system comprising a medium voltage direct current (MVDC) link electrically coupling a first AC-DC converter and a second AC -DC converter. The first AC -DC converter is electrically coupled with a first alternating cu...  
WO/2020/259900A1
A power supply system (12) for an electric arc furnace (10) comprises an AC input (20) connectable to an electrical grid (22) and an AC output (24) for supplying at least one power electrode (14) of the arc furnace (10). The power supply...  
WO/2020/260032A1
Electrical circuit (1) for charging a DC voltage source from an AC voltage network, the circuit comprising: - an input (3) suitable for receiving an AC voltage from the voltage network, - a first output (4) suitable for being connected t...  
WO/2020/259907A1
A power supply system (12) for an electric arc furnace (10) comprises an AC input (20) connectable to an electrical grid (22) and an AC output (24) for supplying at least one power electrode (14) of the arc furnace (10); a resonant circu...  
WO/2020/252968A1
A smart thyristor voltage conversion circuit, comprising a first thyristor (20), a first alternating-current output driving circuit (60), and a main control circuit (80). One end of the first thyristor (20) is connected to an alternating...  
WO/2020/249385A1
The invention relates to a power converter (200), in particular of a wind energy installation for feeding electrical power into an electrical supply network, at least comprising: a multiplicity of rectifiers (210) which are connected to ...  
WO/2020/245916A1
A power conversion device according to an embodiment comprises a first power converter, a plurality of DCDC converters, and a second power converter. The first power converter includes: a plurality of first positive arms; a plurality of ...  
WO/2020/239326A1
The invention relates to a system (1) comprising a control device (10) with central electronics (11) designed for the intended connection and operation of differently coded electric motors (En) with different motor characteristics (Mn) a...  
WO/2020/221831A1
A power converter system (1A) is described. The system includes a power converter (2) with a first converter (2b) including a plurality of semiconductor devices. Each semiconductor device includes at least a controllable semiconductor sw...  
WO/2020/215834A1
Disclosed in the present application are a control method and apparatus for a variable frequency air conditioner and a variable frequency air conditioner, belonging to the field of compressors. Said method comprises: calculating a target...  
WO/2020/204807A1
The invention relates to a circuit breaker for an electrical circuit. The circuit breaker (100) is arranged between a power supply (302) and a load (304) and comprising a first circuit breaker (102) coupled in series with a second circui...  
WO/2020/201323A1
The invention relates to a method for generating at least an AC voltage using at least one inverter device (202), and the inverter device (202) comprises in each case at least one voltage input (206) for applying an input voltage, at lea...  
WO/2020/204806A1
The invention relates to a circuit breaker for an electrical circuit. The circuit breaker (100) is arranged between a power supply (302) and a load (304), wherein the circuit breaker (100) comprises control means (104) configured to swit...  
WO/2020/021526A3
Devices and methods for providing a regulated current to a varying resistive load. A voltage booster powered by a primary electrical source provides an adjustable voltage across the load, while a current regulator in series with the load...  
WO/2020/181348A1
The present invention patent application relates to an electronic converter device intended for use in universal brush motors with specific features relating to input and output voltage and to power. These motors are used in a range of e...  
WO/2020/183102A1
The invention relates to a system (1) configured to deliver as output a polyphase current of constant frequency from a synchronous generator (2) driven at variable speed, said system successively comprising, at the output of said generat...  
WO/2020/185116A1
The invention relates to computer engineering and can be used for building high-speed, high-voltage voltage level translators, including when interfacing elements of electronic systems having several power sources. The technical result c...  
WO/2020/182341A1
The invention relates to a drive system and a method for operating a drive system, comprising a converter and a second inverter and at least one first switching unit (9), wherein: an electric motor is connected to the AC voltage-side ter...  
WO/2020/182339A1
The invention relates to a drive system comprising a converter, in particular an AC/DC converter, and an inverter for supplying power to an electric motor which is electrically connected to the AC voltage-side terminal of the inverter, w...  
WO/2020/179280A1
The present invention concerns a method and a device for on-line monitoring a DC-bus capacitor comprised in a power converter that controls the power provided to a load through an output stage at each switching cycle using a pulse width ...  
WO/2020/173563A1
The present disclosure relates to an AC-to-AC MMC (2) configured to be connected between a first AC system (10a) and a second AC system (10b). The MMC comprises a plurality of parallel connected phase legs (4), each phase leg comprising ...  
WO/2020/172732A1
The present invention patent application relates to an automatic dual-voltage device that is designed to automatically switch the output of single-phase induction motors with power up to 3 HP/CV, immediately upon being connected to the 1...  
WO/2020/171886A1
According to various embodiments, a power conversion circuit is disclosed. The power conversion circuit includes at least one DC bus. The power conversion circuit further includes a plurality of DC -AC conversion units coupled to the DC ...  
WO/2020/164800A1
The invention relates to a system for contactless transmission of electrical power to a mobile part. The system comprises: a primary conductor; a compensating assembly for providing a capacitance; and the mobile part, the mobile part hav...  
WO/2020/163836A1
A driver (60) may be used to drive an electrically controllable optically active material in a privacy structure (12). In some examples, the driver receives power from a power source (62) at a supply voltage and a supply apparent power l...  
WO/2020/157791A1
[Problem] To provide an electron generating means having a circuit that is not liable to become damaged, and which generates electrons in a stable state. To provide a combustion promoting means, a moving body, and a sterilizing/deodorizi...  
WO/2020/159625A1
A power conversion system includes a feedback controller circuit connected between the output of a boost converter and a duty cycle control input of the boost converter. The feedback controller circuit comprises: a first summing node whi...  
WO/2020/151913A1
The invention relates to a drive system having a first converter and at least one second converter. The first converter has a first rectifier (11) within the converter housing (17), and the DC voltage-side connection of the rectifier is ...  
WO/2020/057707A3
This invention concerns a method of controlling a power converter system 26 operating in an overmodulation region. The power converter system 26 comprises more than two current controllers 71, 73, 77, 79 a modulator 76 and a power conver...  
WO/2020/142816A1
Fields of this patent ⋅ Distribution and transmission of electrical energy; ⋅ Tapping switches for voltage controllers; ⋅ Position indicators of tapping switches using magnetic means. The magnetic position indicator to which the pr...  
WO/2020/137237A1
In this switching module, a determination unit (303) brings a bidirectional switch (1A) into an open state and a bidirectional switch (1B) into a closed state only during a test period from a first time and then, if the difference absolu...  
WO/2020/126180A1
The invention specifies a method for operating an electrical supply device (2) which is connected, on the network side, to an electrical supply network (4) and has a frequency converter (8), which has a network-side power converter (10) ...  
WO/2020/120168A1
The invention relates to a drive circuit (10) for driving an electronically commutated motor (12), having a DC link (14), an inverter (16) which is connected to the DC link (14) and has multi-phase bridge circuits (S7-S12) for feeding th...  
WO/2020/115413A1
The invention relates to an electronic dimmer (1) for driving a low-voltage power supply circuit of a load (3), said dimmer comprising at least one transistor-based switch (9) and a control device driving said at least one transistor-bas...  
WO/2020/109002A1
The invention relates to a method for monitoring at least one transformer (10). So that the monitoring method can be carried out as easily and reliably as possible, the following steps are proposed: generating an object-specific analytic...  
WO/2020/104068A1
The present invention provides a DC-DC converter, a bi-directional DC-DC converter and an uninterrupted power supply including the same. The DC-DC converter comprises: a first inductor, a first switching tube, and a second inductor conne...  
WO/2020/104065A1
The present invention provides a DC-DC converter, a bi-directional DC-DC converter and an uninterrupted power supply comprising the same. The DC-DC converter comprises: a first inductor, a first switching tube and a second inductor conne...  
WO/2020/104064A1
The present invention provides a DC-DC converter, a bi-directional DC-DC converter, and an uninterrupted power supply including the same. The DC-DC converter comprises a first switching tube, an inductor, and a second switching tube conn...  
WO/2020/095065A1
The present disclosure relates to an operating circuit suitable for operating a liquid crystal device, the circuit including a means for supplying unsmoothed DC from an AC source to a switching circuit, wherein the switching circuit has ...  
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...  
WO/2020/088839A1
The invention relates to a frequency converter with a rectifier (1) on the input side and at least one support capacitor (3) arranged downstream of the rectifier (1). The rectifier (1) has multiple half-bridges (6), via which a respectiv...  
WO/2020/088840A1
The invention relates to a frequency converter with a rectifier (1) on the input side and at least one support capacitor (3) arranged downstream of the rectifier (1). The rectifier (1) has multiple half-bridges (6), via which a respectiv...  
WO/2020/083470A1
The invention relates to a system (1) for stabilizing an alternating voltage grid (2), comprising a power converter (3) and at least one electrical energy store (10). The invention is characterized in that the power converter is a matrix...  
WO/2020/075867A1
The purpose of the present invention is to realize an electrolytic capacitor-free AC-DC converter of a small-capacity DC link capacitor. This AC-DC converter 100 includes: a rectifier circuit 10 that rectifies an AC voltage and generates...  
WO/2020/073198A1
A method for circuit monitoring includes detecting a waveform of first voltage at a DC-link capacitor in a power converter, the first voltage being generated by turning on a chopper circuit coupling in parallel to the DC-link (310); dete...  
WO/2020/076966A1
A reconfigurable, for example with time, network switch matrix coupling switch charge circuits representing multiply and add circuits (MACs) arid neurons (MACs with activations) capable of accepting and outputting proportional to charge ...  
WO/2020/066031A1
This motor drive device (100) is provided with: a reactor (2); a converter circuit (3) which converts an AC first voltage outputted from an AC power supply (1) to a DC voltage; a capacitor (4) which smooths a second voltage, which is a v...  
WO/2020/056468A1
An electric power distribution controller configured to be communicatively coupled to other instances of the electric power distribution controller to form a network of electrical power distribution controllers that collectively control ...  
WO/2020/053175A1
The invention relates to a method for monitoring a balancing tuning of an absorption circuit (16) arranged in an intermediate circuit of a converter system (4), wherein the intermediate circuit (12) is connected between an input convert ...  
WO/2020/051288A1
A method and apparatus include a primary transformer coil, a secondary transformer coil, and a center tapped inductor coupled to the secondary transformer coil. A first switch may be in electrical communication with the center tapped ind...  

Matches 1 - 50 out of 7,608