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Matches 551 - 600 out of 32,915

Document Document Title
WO/2018/217464A1
In certain aspects, methods and systems for controlling power transfer at a wireless power receiver are disclosed. In certain aspects, a method includes determining a duty cycle of a DC-DC converter of the wireless power receiver. The me...  
WO/2018/215067A1
The invention relates to a method for measuring a temperature in an electric machine (30) or a transformer by means of a temperature sensor device (10) connected to an evaluation device, in which temperature sensor device a two-pole temp...  
WO/2018/216338A1
A driver circuit (1, 51, 61, 71, 81, 91) is provided with: two switching elements (Q1, Q2) connected in series between a pair of power supply lines (L1, L2), to which a power supply voltage is supplied; and a drive unit (2) that compleme...  
WO/2018/215754A1
A DC-DC converter and a corresponding method for maintaining an output voltage of the DC-DC converter, wherein the DC-DC converter is configured to operate in a discontinuous conduction mode, within a predetermined voltage range. The met...  
WO/2018/216982A1
The present disclosure relates to a voltage conversion circuit including: a plurality of switched capacitors; and a buck converter configured to be alternately applied with a first voltage and a second voltage output from each of two swi...  
WO/2018/217493A1
One direct current to direct current converter disclosed herein can implement three control modes: a predefined control mode in which an outer phase-shift angle is determined based on a predefined process, a current control mode in which...  
WO/2018/217039A1
The present invention relates to a technology for implementing an automatic voltage regulator which is simple in structure and requires low cost by using two alternating current switches, and enabling highly precise control of an output ...  
WO/2018/211840A1
Control devices 41, 42 are each provided with: a current detection unit 10 which detects a sense current with respect to a current flowing through a semiconductor element D1, D2; a transient sense period detection unit 20 which detects a...  
WO/2018/210869A1
The invention relates to an inverter (1) having an intermediate circuit capacitor, the terminals of which are connected to supply lines (3, 4) for power supply and to a switching device (10) comprising a plurality of half-bridges (13), w...  
WO/2018/211334A1
A power converter for beat tracing applications is disclosed. The power converter includes a controller configured to control an input switching stage. The power converter also includes an output filter, the output filter electrically co...  
WO/2018/211391A1
A system and method is presented for lowering inrush current to an uninterruptible power supply. During a startup phase, an AC voltage is applied to the secondary winding of a transformer interposed between an input power supply and a re...  
WO/2018/210285A1
Provided are a T-type converter circuit and corresponding three-phase converter circuit. In the T-type converter circuit, one inductor, four diodes and two capacitors are added to a T-type converter circuit of the prior art, thereby enab...  
WO/2018/210506A1
The invention relates to a semiconductor switching arrangement (1) comprising at least two half-bridge modules (2) that each have an AC voltage connection (23), and a positive DC voltage busbar (41), a negative DC voltage busbar (42), an...  
WO/2018/206846A1
According to an example aspect of the present invention, there is provided a DC to DC converter module for use between an electric power source and an electric motor. The DC to DC converter module having: a DC to DC converter; input term...  
WO/2018/208057A1
Provided is a conductive noise suppression device which suppresses noise deterioration caused by a frequency of conductive common mode noise. A suppression unit (100) comprises: a first coil unit (110) for detecting a noise current of a ...  
WO/2018/206380A1
A power supply system is disclosed for powering the operation of a ventilation fan driven by a permanent magnet motor, the supply system having an electric converter comprising a first input terminal for receiving an input of alternating...  
WO/2018/208641A1
An electrical power subsystem includes a generator comprising a generator stator and a generator rotor, and a power converter electrically coupled to the generator. The power converter includes a plurality of rotor-side converters electr...  
WO/2018/206074A1
It is presented a method for operating a power converter for converting power between a HVDC connection and an AC connection. The power converter comprises a plurality of converter cells arranged in converter arms between poles of the HV...  
WO/2018/206134A1
The invention relates to a converter assembly (1), comprising a plurality of electrically connected switching modules (3), which each have semiconductor switches, and a fire alarm system (8) for monitoring the converter assembly for fire...  
WO/2018/208643A1
An electrical power system includes a cluster of electrical power subsystems, each of the electrical power subsystems including a power converter electrically coupled to a generator having a generator rotor and a generator stator. Each o...  
WO/2018/206925A1
A pulse width modulated voltage regulator comprises a first node (23) and a second node (24) with a load connected between them, a direct current voltage source comprising a supply rail (25) at a first voltage and a zero voltage rail (26...  
WO/2018/207249A1
A control device (20) for controlling switching elements (2, 3) in a power conversion circuit (1) is provided with a pattern generation unit (20) for generating a frequency changing pattern (25) and a controller (22). The pattern generat...  
WO/2018/208597A1
A predicted ripple in the feedback voltage of a switching converter is generated, based on the ripple over a certain number of recent switching cycles. The DC portion of the feedback voltage is filtered out. This predicted feedback volta...  
WO/2018/207981A1
Disclosed is a load driving device. A load driving device according to an embodiment of the present disclosure may comprise: a conversion circuit for generating a first voltage as an output signal on the basis of an input voltage; a cali...  
WO/2018/206266A1
The present invention provides a servo driver, comprising: a driver, a pulse conversion module and a pulse interface, wherein the pulse conversion module is connected between the pulse interface and the driver, and the pulse conversion m...  
WO/2018/201768A1
Disclosed are a current-limiting starting method and circuit for a boost converter. The boost converter comprises a switch tube (Q1), a free-wheeling diode (Q2) and a main control circuit. The current-limiting starting circuit comprises ...  
WO/2018/202641A1
A power conversion system is to be used with an energy source. A plurality of conversion units are used in series via their output with the energy source output. A positive pin of a first converter and the negative pin of a last converte...  
WO/2018/202772A1
The invention relates to a method for operating a converter system of a wind turbine (100) in order to exchange electric power with an electric supply grid (120) at a grid connection point (118), having the steps of operating the convert...  
WO/2018/202749A1
The invention relates to an inverter (I), having a first busbar (3) for connection to a positive pole of a battery (HV), and a second busbar (4) for connection to a negative pole of the battery (HV), and a filter element (7) for reducing...  
WO/2018/202453A1
The invention relates to a circuit arrangement (1) for operating lamps (110), comprising a circuit that can be supplied with a voltage and pulsed by means of at least one switch (11), by which means a transformer (10) is powered, the lam...  
WO/2018/201225A1
A voltage sourced converter for converting power from DC to AC features a chain of power electronic modules in between which each AC connection of the converter is made so as to form a series string or arm of the modules on at least one ...  
WO/2018/204158A1
A circuit and method for controlling a power converter having a high-side and a low-side switch are provided. The circuit may include a comparator configured to receive a reference voltage at a first input and a ramp voltage at a second ...  
WO/2018/202511A1
The present invention relates to a variation of the clock frequency for pulse-width-modulated actuation of an electrical converter. In this context, the clock frequency can be specifically lowered in an angle range of an electrical perio...  
WO/2018/203597A1
A power conversion apparatus according to one embodiment comprises: a rectifying circuit for full-wave rectifying inputted AC power; a first conversion circuit which comprises a passive element and first and second switching elements and...  
WO/2018/202513A1
The invention relates to the controlling of a multi-phase rectifier for adapting the temperature distribution in the rectifier. According to the invention, the phase currents in the individual phases are adjusted on the output-side of th...  
WO/2018/203422A1
This semiconductor element drive device, by means of a power recovery function, reduces energy necessary for driving a gate, and prevents generation of a large current associated with arm short-circuiting, etc. A control circuit (150) ex...  
WO/2018/202510A1
The invention relates to the controlling of a rectifier with multiple electrical phases. In at least one electrical phase, the duty cycles are merged with one another in two consecutive cycles of the pulse-width modulated controlling, i....  
WO/2018/197129A1
A converter (30) comprises first and second DC terminals (32,34) connectable in use to a DC network (40), the converter (30) including a converter limb (36) extending between the DC terminals (32,34), the converter limb (36) including fi...  
WO/2018/198953A1
A power conversion device has a circuit board, an electrical component, a heat sink, a box-shaped housing, and a sealing member. The electrical component is mounted on the circuit board. The heat sink has a component mounting unit on whi...  
WO/2018/200379A1
In accordance with embodiments of the present disclosure, a system for power conversion may include a power converter comprising a power inductor and a switch coupled to the power inductor and a predriver system for electrically driving ...  
WO/2018/198426A1
This semiconductor element is on/off-controlled by controlling a gate voltage according to a driving control signal (Ssw). When a gate of the semiconductor element is driven according to the driving control signal (Ssw), gate driving abi...  
WO/2018/196654A1
A ripple suppression circuit comprising a first transistor, a second transistor and a third transistor; the first transistor being connected in series to the second transistor to form a Darlington transistor; and the third transistor bei...  
WO/2018/197363A1
A power module (10) comprises a plurality of normally-on semiconductor switches (14) based on a wide bandgap substrate, the normally-on semiconductor switches (14) connected in parallel; and a balancing unit (24) comprising a capacitor (...  
WO/2018/199667A1
The present invention relates to a photovoltaic power generation system, and the system comprises: a current sensing unit for sensing and outputting current of an output terminal on one side of a solar battery panel; a voltage output uni...  
WO/2018/194786A1
Systems and methods to estimate magnetic flux in a switched mode power supply are disclosed. An example welding-type power supply includes a switched mode power supply, comprising: a transformer configured to transform an input voltage t...  
WO/2018/193003A1
A converter device (26) comprises at least two half-bridge modules (10), each half-bridge module (10) comprising two semiconductor switches (12, 14) connected in series between a DC+ output (16) and a DC- output (18) and providing an AC ...  
WO/2018/192670A1
A resonance damping element (10) for a power converter having a positive busbar (1) and a negative busbar (2), wherein the resonance damping element (10) comprises a magnetic core formed with two openings (11,12) through which the positi...  
WO/2018/192754A1
The invention relates to a converter (K) for controlling power flows between at least three power networks (QAC, QHV, QNV) having different operating voltages (UA, UB, UC). The converter comprises at least three terminals (A, B, C), each...  
WO/2018/192219A1
A power factor correction (PFC) circuit and a power supply device, the PFC circuit comprising: a power input terminal (Vin), a plurality of rectifying and filtering modules (10, 10A, 10B), step-up modules (20, 20A, 20B) which are provide...  
WO/2018/192468A1
A startup control circuit (100), used for supplying a startup voltage for a control circuit (U20) of a switch power supply (200), which comprises: a startup voltage generation circuit (101) having a first capacitor (C41, C42) and a first...  

Matches 551 - 600 out of 32,915