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WO/2023/190787A1 |
An electric power converting device (10) according to one aspect of the present invention comprises a first three-phase full-bridge circuit (11) connected to one end of each of three-phase coils of an open winding type three-phase motor ...
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WO/2023/191040A1 |
Provided is an operating device capable of reducing noise. This operating device includes a first space S1 accommodating an operating portion, a communicating hole providing communication between the inside and the outside of the first...
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WO/2023/190173A1 |
A motor control device according to one aspect of the present disclosure comprises an inverter circuit, a conduction control unit, and a determination unit. The inverter circuit has an upper arm and a lower arm for each of three phases. ...
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WO/2023/181499A1 |
The present invention provides a technology that is capable of reducing the thermal resistance of a sintered metal joining section corresponding to the thinning and area-enlarging of the size of the semiconductor chip. Provided is a tech...
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WO/2023/182402A1 |
The present disclosure addresses the problem of reducing failures while restraining an increase in size. According to the present disclosure, a gate drive circuit (1) comprises a signal generation unit (11), a signal blocking unit (12), ...
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WO/2023/181498A1 |
Provided is a semiconductor device in which faults in the semiconductor device can be detected. The semiconductor device has: a switching element having a gate, a first main electrode, and a second main electrode serving as a gate refere...
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WO/2023/179029A1 |
A control method for an offshore wind power uncontrolled rectifier direct-current power transmission system. The method comprises: providing an offshore wind power uncontrolled rectifier direct-current power transmission system, which co...
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WO/2023/179830A1 |
The present invention provides a power module arranged to receive a DC electric input signal at first and second connection terminals (A, B), and to output an AC electric output signal at third and fourth connection terminals (C, D). A s...
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WO/2023/179200A1 |
An inverter and an inverter system. The inverter comprises an inverter module and a power distribution unit; the inverter module has a first direction and a second direction which are perpendicular to each other; the inverter module is p...
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WO/2023/181166A1 |
This power conversion device comprises: a power conversion circuit that is connected to a DC power supply via a switch; a smoothing capacitor that is connected between the power supply line and the ground line of the power conversion cir...
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WO/2023/179145A1 |
A carrier generation method, comprising: upon detecting that an output value of an area detector changes, acquiring a waveform of a first carrier; when the first carrier reaches a first wave trough, switching to a switching carrier havin...
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WO/2023/179144A1 |
A pulse width modulation method, which is applied to a four-leg interleaved inverter. The method comprises: first, generating at least one group of carriers according to an application type of a four-leg interleaved inverter, and sequent...
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WO/2023/181493A1 |
Provided is a semiconductor device having an inverter circuit consisting of upper and lower arms in which short-circuit current detection accuracy can be improved by increasing the inductance of a circuit for detecting the rate of change...
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WO/2023/179142A1 |
The present application relates to a driver circuit and a piezoelectric actuator. The driver circuit comprises: a buck-boost circuit, the buck-boost circuit being configured, according to a voltage regulation control signal, to work in a...
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WO/2023/179141A1 |
The present invention relates to a fully-automatic pulse generation and display circuit for an inter-station secure information transmission system. The fully-automatic pulse generation and display circuit comprises: a first power supply...
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WO/2023/181368A1 |
In the present invention, a power converter comprises: an inverter that includes a plurality of switching elements, receives DC voltage from a DC voltage source as an input, converts the received DC voltage to variable-voltage, variable-...
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WO/2023/181250A1 |
A power conversion device (1) comprises: a power reception coil (11) for transferring power in a non-contact manner through magnetic coupling with the outside; a first bridge circuit (12) that has a plurality of semiconductor switches (Q...
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WO/2023/180244A1 |
In a method for actuating a vehicle drive, the inverter generates an AKS state (AKS) in the form of an active short circuit of phase connections of the electric machine or a freewheeling state (F) of the electric machine when a fault occ...
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WO/2023/181306A1 |
This inverter device comprises a switching circuit that is connected to a motor having a plurality of phase windings, and a controller that controls the switching circuit. The switching circuit includes a plurality of series circuits of ...
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WO/2023/182401A1 |
An objective of the present disclosure is to reduce defects while suppressing increases in size. In the present disclosure, a gate drive circuit (1) includes a signal generation unit (11), a signal cutoff unit (12), a first interlock par...
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WO/2023/181412A1 |
A power conversion device according to the present invention includes a power module including a conductor extending to the side, and a cooler for cooling the power module. The cooler includes a first member that is not in contact with t...
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WO/2023/175116A1 |
We describe a converter for generating a multi-phase output voltage that utilises a T-type arrangement of switches. The converter is switchable between a two-level mode, where the Upper and Lower switches are controlled to generate the o...
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WO/2023/175675A1 |
A power module semiconductor package (1) comprises a substrate (5), a first power semiconductor element (17), a second power semiconductor element (41), a heat spreader (31), and a sealing resin (53). In a plan view of the substrate (5) ...
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WO/2023/174992A1 |
The invention relates to a method for controlling a multiphase traction inverter, said method having the following steps. It is determined whether the condition is satisfied whereby an electrical frequency of the output signal of the tra...
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WO/2023/173529A1 |
An active converter, which relates to the technical field of power electronics. An input end of an input circuit of the active converter is connected to a direct-current power source; a first output end of the input circuit is connected ...
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WO/2023/176281A1 |
[Problem] To provide a power conversion apparatus capable of causing a common mode current generated from a switching element to return through the shortest route, and reducing high-frequency noise. [Solution] The power conversion appara...
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WO/2023/175371A1 |
An energy harvesting system includes two or more power harvesting subsystems respectively coupled to different conductors of an electrical circuit, such as multiple legs of a multi-phase electrical circuit. Each energy harvesting subsyst...
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WO/2023/175909A1 |
The purpose of the present disclosure is to reduce the total loss of an inverter that includes a Si switching element and a SiC switching element which are connected in parallel. An inverter (101) comprises: a SiC MOSFET module (1); a Si...
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WO/2023/175759A1 |
A power conversion apparatus (1) comprises: a neutral point clamp-type multilevel power converter (10); and a control device (20). The control device (20) comprises: a modulation voltage generator (21) that generates modulation phase vol...
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WO/2023/176462A1 |
Provided is a film capacitor comprising: a film capacitor element having a first electrode and a second electrode; a first bus bar having a first connection portion connected to the first electrode and a first terminal portion for extern...
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WO/2023/176280A1 |
[Problem] To provide a power conversion device in which noise (common mode current) flowing out from a switching element via a parasitic capacitance can be easily reduced. [Solution] A power conversion device 1 applies the voltages at th...
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WO/2023/176484A1 |
A motor drive system (10) comprises: a drive circuit including a direct-current power source (B), a motor (M1), a converter (12) that has a resonance circuit which resonates in a prescribed resonance frequency band, and that converts a v...
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WO/2023/176282A1 |
Provided is an electric power conversion apparatus comprising an inverter circuit 28 for applying a phase voltage at connection points of upper and lower arm switching elements 18A–18F of various phases to a load, and a control device ...
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WO/2023/175779A1 |
A power supply circuit according to an embodiment of the present invention comprises: a three-phase reactor connected at one end to phase terminals of a three-phase AC power source; a converter main circuit formed by connecting six switc...
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WO/2023/176101A1 |
This power conversion unit diagnosis system 100 has an input portion that receives AC power from an AC power supply 1 and an output portion that converts the AC power to DC power and outputs the DC power. The power conversion unit diagno...
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WO/2023/176295A1 |
A power source system (10) comprises: a power source (23); an inverter (24) connected to the power source; a rotary electric machine (21) connected to the inverter; power switches (RM1, RM2) provided on a power supply path between the po...
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WO/2023/173706A1 |
Disclosed in the present invention are a power module structure and a driving circuit thereof. The power module structure comprises a package and pins; a plurality of pins are provided and distributed on two sides of the package; a circu...
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WO/2023/171088A1 |
The present invention improves a problem associated with the acquisition of loss data and accurately estimates, from a sense current, main current flowing through a power device. This power device current detection device is characterize...
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WO/2023/170660A1 |
A chlorinator system includes a swimming pool chlorinator configured to perform chlorination operations of a salt water pool system. The swimming pool chlorinator includes an electrolysis cell configured to receive a flow of pool water a...
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WO/2023/170897A1 |
This semiconductor module is provided with: a switching element; a base member having a first side and a second side located on the opposite side from the first side; a plurality of plates that have a control terminal group extending fro...
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WO/2023/168683A1 |
The present invention discloses a leakage inductance utilizing converter, which comprises: an input unit, the input unit being any one among an input capacitor, an input bus end, and an input end after rectification and adding a filter c...
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WO/2023/170817A1 |
First and second semiconductor elements (Q1, Q2) are connected in series between a DC positive bus line (10) and a DC neutral point bus line (20). Third and fourth semiconductor elements (Q3, Q4) are connected in series between the DC ne...
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WO/2023/170226A1 |
The invention relates to a circuit arrangement (1) for generating at least one output DC voltage (2, 2a, 2b) on the basis of an input AC voltage (3), comprising at least one input stage (4) and at least one rectifier (5), wherein the inp...
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WO/2023/171096A1 |
This power conversion device comprises: a power conversion circuit in which at least three-phases of upper/lower arm circuits having switching elements connected in series are connected in parallel and which outputs AC current to a motor...
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WO/2023/170268A1 |
A power module (1) comprises one or more substrates (28, 29, 30, 31), at least one high-side switching device (2, 19) and at least one low-side switching device (3, 20) located on one or more of the substrates (28, 29, 30, 31), and at le...
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WO/2023/168757A1 |
Disclosed is a parallel connection method for balance-to-ground of an output of a CSR high-frequency PWM rectification circuit. Positive and negative sides of a direct current output loop each comprise an inductor, and a parameter of eac...
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WO/2023/170740A1 |
Provided is an overheating protection control device for a power converter, wherein a heat quantity calculation unit adds the product of time and squared current to a previous heat quantity equivalent value when electric power is at a fi...
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WO/2023/164920A1 |
A nitride-based power factor correction (PFC) circuit for improving power distribution efficiency from an AC power supply to a load, and the PFC circuit comprises a nitride-based bidirectional switch and a controlling circuit having a fi...
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WO/2023/165976A1 |
There is described a method of controlling a multi-phase power converter comprising at least one PWM inverter module for each phase. The method comprises (a) receiving a voltage reference value for each phase, (b) checking, for each pair...
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WO/2023/165346A1 |
Disclosed is a full-bridge inverter soft switching circuit, comprising: a full-bridge inverter basic circuit and a soft switching circuit, the soft switching circuit being connected to a front end of the full-bridge inverter basic circui...
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