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Matches 1 - 50 out of 34,599

Document Document Title
WO/2021/082220A1
A three-phase grid-connected inverter, a control system thereof and a control method therefor. The inverter is a three-phase three-leg grid-connected inverter, and a filter capacitor is connected to a negative electrode of a DC input bus...  
WO/2021/082477A1
The present invention relates to the field of control, and in particular, to a control algorithm for suppressing the current harmonics of a four-quadrant converter, specifically, a method for suppressing the low-order current harmonics o...  
WO/2021/083687A1
In electric drives for vehicles, the primary steady operating states, such as drive, recuperation etc. for example, are paramount. However, in addition to these primary operating states, the changeover of operating states and secondary o...  
WO/2021/086240A1
A method for providing frequency balancing in a power network grid is presented The method is performed in an RBS of a radio communication network. The RBS comprises one or more power supply units, PSUs, connected to the power network gr...  
WO/2021/084566A1
Converter device configured to convert direct voltage and current into alternating voltage and current to be supplied to a load (L). The converter device comprises a bank (11) of capacitors (12), a plurality of power semiconductors (13),...  
WO/2021/085226A1
The purpose of the present invention is to prevent a large current flow during energization by normal load drive control in the event of a load short-circuit. A load drive device 100 is provided with: drive switches 61, 62 for switching ...  
WO/2021/083500A1
A method of monitoring condition of a modular multilevel converter, wherein the modular multilevel converter comprises submodules having a capacitor and controllable switches. The method comprising selecting a submodule, lowering the vol...  
WO/2021/086808A1
Systems for stacked capacitive coupled resonant dual active bridge DC-DC converters are provided. Aspects include a first phase circuit topology comprising a power source and a power inverter circuit, a plurality of LC circuits comprisin...  
WO/2021/082119A1
The present invention relates to the field of control, and in particular, to a control algorithm for current low-order harmonic suppression of a four-quadrant converter, specifically a low harmonic suppression method for a four-quadrant ...  
WO/2021/083810A1
The invention relates to a circuit arrangement, by means of which a voltage type and a voltage value, in particular an average value, of an input voltage (Ue) of a power supply (SV) or of a switching-mode power supply (SV) is ascertained...  
WO/2021/083501A1
A method of monitoring condition of a modular multilevel converter, wherein the modular multilevel converter comprises submodules having a capacitor and controllable switches. The method comprising selecting a submodule, con-trolling the...  
WO/2021/078241A1
An inverter with a plurality of input interfaces, relating to the field of electronic technology. The inverter comprises: a direct current input interface (31) comprising a first direct current input interface (311) and a second direct c...  
WO/2021/078863A1
There is provided an AC-DC converter circuit (100) for high power charging of an electrical battery. The circuit comprises an input rectifier comprising a first node and a second node. The input rectifier (110) is configured to receive a...  
WO/2021/078562A1
A LED driver having a current sensing resistor arrangement with two parallel current sensing branches, each comprising at least two series resistors connected at a respective sensing node. The voltages at the two sensing nodes are proces...  
WO/2021/080588A1
A switching circuit for an electric vehicle (EV) includes a first leg of the switching circuit, including a first switch and a second switch, that receives a first phase of three-phase alternating current (AC) electrical power; a second ...  
WO/2021/080992A1
A matching network for a system having a non-linear load and powered by a first RF power supply operating at a first frequency and a second RF power supply operating at a second frequency. The matching network includes a first matching n...  
WO/2021/081160A1
A battery management system configured to electrically couple to a battery may include a boost converter comprising a plurality of switches arranged to provide a boosted output voltage at an output of the boost converter from a source vo...  
WO/2021/078532A1
An inverter circuit receives an AC input signal and uses at least two bidirectional switches between the input terminals and a junction node to perform the electrical inversion function. A resonant circuit is formed by a primary side ind...  
WO/2021/079832A1
A control system (100, 100a, 100b) for an electric moving body (500) and comprising a plurality of electric drive systems (10), each having a motor (19) which rotationally drives a rotor blade or a screw and an inverter device (11) which...  
WO/2021/080982A1
An electronic system can include a charged system and a charging system. The charged system can include a charger and a battery configured to be charged thereby. The charger may be configured to receive power from a charging system that ...  
WO/2021/077631A1
The present invention relates to the technical field of heat dissipation. Provided are a radiator and an air conditioner having same. The radiator comprises: a heat-conducting base comprising a first portion (11) and a second portion (12...  
WO/2021/072746A1
A system includes an input voltage terminal, a power converter integrated circuit package fuselessly coupled to the input voltage terminal and having first and second pins, the power converter integrated circuit package configured to det...  
WO/2021/077076A1
Gate driver bootstrap circuits and related methods are described. An example gate driver stage (202) includes a first terminal (302) and a second terminal (304), the first terminal to be coupled to a capacitor (234), the capacitor and th...  
WO/2021/074975A1
Provided is a structure by which a connector and a socket can be easily fitted together when combining a first electric unit with a second electric unit. The electric device disclosed by the present description is provided with a first e...  
WO/2021/075643A1
A power generating transformer system (PGTS) where the core of the transformer has one of the generalized configurations is presented. Also, a power factor correction method in a power generating transformer system (PGTS) and a PGTS func...  
WO/2021/074387A1
A hybrid switch for a power converter and a method of operating said hybrid switch, the hybrid switch comprising: at a minimum a first and a second element comprising one or more switching devices of a first semiconductor type, and at a ...  
WO/2021/072614A1
A variable-frequency speed regulator of mining direct-current power supply alternating-current permanent magnet synchronous motor, belonging to the field of variable-frequency speed regulation control technology, and comprising a speed r...  
WO/2021/072903A1
Disclosed is an operating door for a manual discharging device of a locomotive converter, relating to the field of auxiliary apparatuses of locomotive converters. The operating door mainly comprises a door plate assembly and a door inner...  
WO/2021/072693A1
Provided in the present invention is a low-EMI normally-on SiC JFET driving circuit, comprising a drive current regulating circuit, a drive voltage clamping module, a drive power transistor Q2, a drive voltage turn-off power transistor Q...  
WO/2021/073721A1
The invention concerns a switching circuit (15) as or for a voltage source converter comprising a string of series-connected switches comprising a first and a second switch (S1, S2), a string of capacitors comprising at least one capacit...  
WO/2021/070403A1
Provided is a DC power supply device that can suppress voltage oscillation in a power supply path to a motor control device. The DC power supply device comprises: a power supply unit (AC/DC converter, and the like) that outputs a direct ...  
WO/2021/069465A1
In order to be able to achieve low output currents (ls) in the case of a resonant converter (1), provision is made for the semiconductor switches (S1, S2, S3, S4) of a bridge circuit (4) of the resonant converter (1), in a low-current mo...  
WO/2021/069261A1
A method for controlling an electrical converter system (10) comprises: determining a switching signal (u*abc) and a reference trajectory (Υ*αβ) of at least one electrical quantity of the electrical converter system (10) over a horizo...  
WO/2021/071427A1
A control circuitry of a switched-mode power module, the switched-mode power module comprising a power stage configured to receive input power from a power supply and to output power to a load, the output power having an output voltage, ...  
WO/2021/046123A3
A system and method is provided to provide power to a load or electronic equipment which includes a multi-pole switch that connects the input of the load or electronic equipment to a first AC source or a DC source or an optional second A...  
WO/2021/069376A1
The invention relates to a power factor correction (PFC) circuit (20), comprising an inductor (21) which is configured to provide a discharge current, a capacitor (23) which is connected to the inductor (21) via a switch (24) and which c...  
WO/2021/068085A1
Power-electronic systems and components thereof such as electrical-energy storage apparatuses/subsystems in the form of supercapacitors and power-electronic apparatuses/subsystems are disclosed. A supercapacitor has a conductive or semi-...  
WO/2021/070495A1
This switching control circuit controls switching of a first switching element in a bridge circuit including the first switching element on a power supply side and a second switching element on a ground side connected in series to the fi...  
WO/2021/069188A1
The invention relates to a balancing device (10) for a network, which comprises: a network input (11) for detecting balancing requirements; a transformer (21) comprising a first winding connected to an output of said network input; an in...  
WO/2021/068776A1
Provided in the embodiments of the present invention are a soft starting method for a resonant converter, circuit and apparatus. A drive signal level of a power switch tube in a resonant converter is set to be a first level value when th...  
WO/2021/070095A1
Described herein is an inductive power transfer (IPT) receiver circuit operable to supply direct current (DC) power to a load. The circuit has a resonant alternating current (AC) circuit with an inductive receiver coil and an AC resonant...  
WO/2021/071241A1
The present invention relates to a current compensation system for a photovoltaic generator, which compensates for noise using an active EMI filter. An inverting system for photovoltaic generation comprises: a photovoltaic invertor for i...  
WO/2021/069259A1
A method for controlling an electrical converter system (10) comprises: determining a nominal pulse pattern (t* p,i , Δu* p,i ) and a reference trajectory (x*) of at least one electrical quantity of the electrical converter system (10) ...  
WO/2021/071013A1
The present invention provides a discontinuous pulse width modulation apparatus and method for minimizing switching loss of a power conversion system by means of adjusting a power factor angle such that a current flowing through a switch...  
WO/2021/067311A1
A power converter includes a switched-capacitor circuit that forms different capacitor networks out of a set of capacitors. It does so in a way that avoids losses that can arise when capacitors are connected together.  
WO/2021/064373A1
A peak current mode 'PCM' controller comprising control logic arranged to produce a series of digital control values derived from a voltage sense signal, control logic arranged to produce a digital slope compensation value, a first digit...  
WO/2021/066886A1
An active line filter (ALF) with input current regulation includes: an output providing an output power form having an output current; a pulse-width modulator (PWM) for controlling timing of switching of a converter switch transistor to ...  
WO/2021/066887A1
An active line filter (ALF) with multiple outputs includes a first output providing a first output power form having a first output current, the first output power form being coupled to a first winding on an inductive element; and a seco...  
WO/2021/063491A1
The invention relates to an electric high-voltage device (10) comprising a fluid-tight housing (16), a high-voltage component (11, 12) which is arranged in the housing, and an insulating liquid (17) in the housing in order to electricall...  
WO/2021/063088A1
A system and method for cooling an inverter, and an air conditioning apparatus. The system comprises: a first cooling branch (2), in communication at one end with an inlet pipe (1), in communication at the other end with an outlet pipe (...  

Matches 1 - 50 out of 34,599