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Matches 51 - 100 out of 32,921

Document Document Title
WO/2019/206612A1
The invention relates to a DC/DC converter (200) for resonant operation with potential separation, comprising: a transformer (230) having a primary-side and a secondary-side inductance (231, 232); an inverter arrangement (110) that is co...  
WO/2019/207847A1
A plurality of drive circuits (110, 210) respectively drive a plurality of power semiconductor elements (100, 200) connected in parallel. Each of the drive circuits includes a control command unit (112), a current detector (111), a diffe...  
WO/2019/206550A1
An inverter circuit arrangement that connects an IO-link master with a slave comprises an AB class transistor circuit (Qnc2, Qpc2) of which the currents are replicated by a current mirror (Qpo1, Qno1, Qpo2, Qno2) to a terminal of the sla...  
WO/2019/207977A1
The purpose of the present invention relates to suppressing the fluctuation of gate-source voltage in a gate drive circuit using SiC voltage-driven semiconductor elements. In order to achieve this purpose, according to the present invent...  
WO/2019/205940A1
Provided are an over-voltage protection circuit for a switching power supply, the switching power supply, and a compressor. The over-voltage protection circuit comprises: a first voltage sampling module, with one end of the first voltage...  
WO/2019/208839A1
Disclosed is a light-emitting diode illumination device, comprising: a first LED light source and a second LED light source which are included in a first light source group; a third LED light source and a fourth LED light source which ar...  
WO/2019/209443A1
A capacitor discharge circuit for discharging a capacitor to a discharge load. The discharge circuity includes current level sensing circuitry for producing a control signal circuity response to current passing to the discharge load. The...  
WO/2019/206910A1
In order to render possible reliable charging of the intermediate circuit capacitors of an inverter (1) which comprises an intermediate circuit (3), a DC/AC voltage bridge (3) and a control unit (5), according to the invention an interme...  
WO/2019/200813A1
The present invention relates to a conversion circuit board of a BLDC motor and an air condition control system applying the conversion circuit board and for use in a hotel. The conversion circuit board of the BLDC motor comprises a micr...  
WO/2019/201893A1
Voltage supply device having - at least one intermediate circuit comprising at least one intermediate circuit capacitor (Czk), - at least one power converter (S), wherein the power converter (S) is connected to the connections of the int...  
WO/2019/201854A1
A charge pump circuit (10) comprises a series circuit of a number N of stage circuits (11 to 14). A stage circuit (11 to 4) comprises a converter circuit (17, 27 to 29), a stage output (16, 24 to 26), a stage input (15, 21 to 23) coupled...  
WO/2019/202922A1
The power conversion device according to the present invention has a P-bus-line (P) and an N-bus-line (N) and is connected to a DC voltage source to which the P-bus-line and the N-bus-line supply DC power. The power conversion device is ...  
WO/2019/201993A1
Current source rectifiers (CSR) and methods for a power source including three phase lines are provided herein. The CSR includes a rectifier having a plurality of switches, each switch of the plurality of switches coupled to an associate...  
WO/2019/201778A1
The invention relates to an LED converter assembly (10) for operating at least one LED (41), comprising detection means (17) for detecting an electric feed variable (16) of the at least one LED (41) and a controller (15) for actuating sw...  
WO/2019/203143A1
[Problem] To provide a power conversion device with which it is possible to smoothly supply a compensation current that cancels out a leakage current from a load, using an available and relatively simple configuration, without specially ...  
WO/2019/202862A1
The gate drive circuit (GD1) is provided with: a first switching element (SW1) connected between a positive electrode of a direct-current power source (3) and a first node (N1); a second switching element (SW2) connected between a negati...  
WO/2019/197236A1
The invention relates to a neutral point clamped (NPC) inverter (1) with an upper half-bridge (2) and a lower half-bridge (3). Each half-bridge (2, 3) has an inner transistor (T2, T3) and an outer transistor (T1, T4). The neutral point c...  
WO/2019/199439A1
A power supply unit includes a set of primary circuits operably coupled to a set of phase pair electrical inputs. The electrical inputs provide an input voltage via alternating current. Each primary circuit receives a phased pair electri...  
WO/2019/197023A1
The present disclosure relates to a method of controlling a power converter (1), the converter being connected to an AC grid (42) via a power transformer (41), wherein by means of the converter a current is injected into the grid via sai...  
WO/2019/195867A1
The invention relates to a power inverter circuit (1) which has a power inverter (2) and at least one intermediate circuit (3). In order to achieve a high degree of practicality and energy efficiency, a ceramic component (9) is arranged ...  
WO/2019/197302A1
The invention relates to a photovoltaic energy generating system (1) comprising a string (20) which has a series circuit of solar modules (10) and which is electrically connected to a power inverter (30) via connection lines (50) in orde...  
WO/2019/196782A1
Disclosed in the present invention is a switch power supply circuit used for three-phase input, comprising a first input rectification circuit, a first capacitor, a Boost feedback drive control circuit, and one or more Boost conversion c...  
WO/2019/197922A1
Embodiments of the disclosure include a switch having an on-state resistance that varies based on a temperature coefficient of the switch and an overcurrent protection circuit coupled to the switch and having an adjustable overcurrent th...  
WO/2019/199299A1
A power converter includes a first rectifier circuit having a pair of first rectifier circuit output terminals and a second rectifier circuit having a pair of second rectifier circuit output terminals, a snubber circuit comprising a firs...  
WO/2019/197556A1
Protection device for protection against electromagnetic disturbances in electrical networks (200), the protection device (100) comprising an electromagnetic filter (1). The electromagnetic filter (1) comprises a first and a second input...  
WO/2019/196784A1
A switching power supply circuit, comprising: a first loop formed by charging a first capacitor (C1) with a first input rectifying circuit (D1); a second loop formed by charging a second capacitor (C2) with a second input rectifying circ...  
WO/2019/196318A1
Provided in the present invention is a switch power supply, comprising an isolated feedback loop for feeding back an output voltage VCC to a control circuit, the isolated feedback loop comprising an optical coupler U1, a current-limiting...  
WO/2019/195357A1
The current disclosure relates to the design of an apparatus for enhancing the operation and reliability of high-power multi-chip modules, which are used in the design and implementation of power electronics converters. This apparatus is...  
WO/2019/193876A1
To notify, using minimal power consumption, a low-side control unit of an abnormality detection signal. Provided is a drive circuit for a semiconductor device, the drive circuit comprising: a control unit that generates a control signal ...  
WO/2019/193805A1
For example, this switch drive device 100 comprises: a driver 30 that drives an N-type semiconductor switch element PT1; a current limiting unit 50 capable of limiting the current supplied to a boot capacitor BC1 included in a bootstrap ...  
WO/2019/193834A1
According to the present invention, on/off determination units 23H, 23L output on/off determination signals SonH, SonL which indicate on/off states of switching elements M1, M2. Abnormality detection units 24H, 24L output abnormality det...  
WO/2019/194340A1
A constant power LED converter according to one embodiment of the present invention comprises: a power supply unit for receiving alternating current power, converting same into direct current power, and outputting the direct current powe...  
WO/2019/195503A1
Systems and methods for operating a power system having a doubly fed induction generator are provided. In example implementations, an electrical power system (100) connected to a power grid (190) can include a generator (120) comprising ...  
WO/2019/192295A1
Disclosed is a motor controller electrical-discharge control circuit, comprising a discharge signal transmission circuit, a switching circuit, and a discharge circuit; the switching circuit is separately connected to the discharge signal...  
WO/2019/192234A1
A zero voltage switching synchronous rectifying Boost circuit, a zero voltage switching Boost circuit (30), and a control method therefor; an auxiliary resonant circuit (40) is connected in series in a rectifying circuit of a main power ...  
WO/2019/188368A1
The present invention controls a passive capacitor Cp and an active capacitor Ca connected in series with a DC link 6 of a power conditioner 1 so that a voltage Va at the active capacitor Ca becomes a voltage serving as a DC bias compone...  
WO/2019/188069A1
Provided is a power conversion device capable of outputting low-power AC power with good responsiveness. The power conversion device is provided with an inverter circuit and a control unit. The inverter circuit is provided with one or a ...  
WO/2019/185151A1
The invention relates to an electrical circuit comprising a load (2) and at least one voltage source converter (24a-c) for reactive power compensation, which is connected to the load (2) in series. The voltage source converter (24a-c) is...  
WO/2019/186078A1
In brief, the invention relates in particular to a converter (100) comprising a plurality of rectifier arms (110), making it possible in particular to rectify AC electrical signals available on the electrical phases (U, V, W) of an elect...  
WO/2019/187722A1
According to the present invention, power is supplied to a power conversion device (3) from an alternating-current power source (1). An active filter device (2) that is a power source quality improvement part improves the quality of the ...  
WO/2019/185418A1
In an example, a controller for a first sub-unit of a converter is provided. The converter comprises a plurality of converter sub-units, each sub-unit comprising at least one switching element of the converter. The controller comprises a...  
WO/2019/187724A1
A gate voltage control/gate resistance switching circuit (21) is housed inside the same package (P1) as a switching element (11) and outputs drive signals to the switching element (11) to control turning of the switching element (11) on ...  
WO/2019/184880A1
Disclosed are a converter and a control method. The converter comprises a machine-side assembly, a power unit assembly and a grid-side assembly, sequentially disposed in a cabinet from top to bottom, wherein an input port of the power un...  
WO/2019/184420A1
A dust control system and a projection device. The system comprises: a master control chip, a sensor, and a removal system; the sensor is provided on the surface of a dust screen, and is configured to obtain a dust concentration on the s...  
WO/2019/187484A1
A gate drive circuit (1) comprises: a transmission unit (10) that generates a power signal used for driving a gate a semiconductor switching element (60); an isolation element (3) that transmits the power signal in an electrically isolat...  
WO/2019/185327A1
This application relates to a cell (1200) or sub-module for a voltage source converter (1201). The cell includes an energy storage apparatus (101; 101a, 101b)and a plurality of dual-switch semiconductor packages (201), each having first ...  
WO/2019/152976A3
A DC-to-DC power converter may include a non-transitory computer-readable memory storing a temperature coefficient associated with the DC-to-DC power converter and a controller coupled to the memory. The controller may be configured to r...  
WO/2019/179891A1
The invention relates to a control method (100) for multiport active bridge transducers (10) for avoiding saturation effects of the transformers (5) in the transducer (10) and a transducer (10) operated with a control method (100) of thi...  
WO/2019/182132A1
According to several embodiments, a device includes an inverter having a switching circuit. In addition, a first circuit has a first circuit ground and a second circuit has a second circuit ground. For example, the second circuit may be ...  
WO/2019/179944A1
The present invention provides an emergency power supply unit (1) for operating an emergency lighting means (6), preferably comprising at least one LED (6a); wherein the emergency power supply unit (1) comprises: - an energy storage unit...  

Matches 51 - 100 out of 32,921