Abstract: An integrated magnetic component comprises a common mode inductance and a differential mode inductance. The common mode inductance is formed by a common mode core surrounding a winding window and at least two windings wound around the common mode core and through the winding window. The differential mode inductance is formed by the at least two windings and a differential mode core being spaced from the common mode core by a gap. The differential mode core comprises at least one surface being adjacent to each of the at least two windings. Further, a filter for attenuating electromagnetic interference comprises an integrated magnetic component according to the invention. Even further, the integrated magnetic component according to the invention is used for attenuating electromagnetic interference, preferably in a vehicle, a data center, or a telecommunication unit. A method for manufacturing an integrated magnetic component according to the invention comprises two steps.

Abstract: An interleaved LLC converter arrangement includes two or more LLC converters for transferring power from an input side to an output side, wherein the two or more LLC converters include a first LLC converter and a second LLC converter connected in parallel on the input side and on the output side and wherein each LLC converter includes a bridge inverter at the input side. For balancing the power transfer among the LLC converters if for example the second LLC converter transfers more power from the input side to the output side than the first LLC converter, each leg of the bridge of the bridge inverter of the first LLC converter is operated with a duty cycle of 0.5 and at least one leg of the bridge of the bridge inverter of the second LLC converter is operated with a duty cycle different from 0.5.

Abstract: An electric power converter has a first converter terminal, a second converter terminal, a converter switch and a snubber circuit. The snubber circuit comprises a snubber switch and a passive network connected to the snubber switch. The snubber circuit is connected to the converter switch, the first converter terminal and the second converter terminal.

Abstract: The invention relates to a method for operating a power converter (1), preferably a solar inverter, for feeding a load current (Iload) into a grid (3). The method includes the steps of determining the load current (Iload), monitoring an output voltage (Uout) of the power converter (1), and controlling the load current (Iload), to avoid that the output voltage (Uout) exceeds a voltage limit (Uout,lim), wherein the voltage limit (Uout,lim) is adjusted in dependency of the load current (Iload). Furthermore the invention relates to a corresponding power converter (1) for connecting to a grid (3), preferably it relates to a solar power converter. This power converter (1) includes a load current sensor (142), an output voltage sensor (143) and a load current controller (141).

Abstract: A converter arrangement with at least two single LLC converters, a pulse generator per single LLC converter wherein each pulse generator is configured to supply switching pulses to one single LLC converter and an output controller configured to use switching frequency control and/or phase-shift control to control the pulse generators comprises a load balancing control for overcoming unbalanced loading of the converter arrangement.

Abstract: A method of configuring windings in an inductive charging pad array by using capacitors for impedance control and configuring windings to reduce the stray magnetic fields produced.

Abstract: A boost PFC converter includes a rectifier, a converter and an output stage comprising an output capacitor where the DC output voltage is provided across the output capacitor. The rectifier includes four rectifying elements connected in a full bridge configuration where the upper two of these four rectifying elements are thyristors and where the lower two are diodes. In that the thyristors are controlled such as to be open for only a part of each half period of the input voltage, the amount of current per half period that is passed to the output capacitor is controllable and can be made very small. Accordingly, the charge current for precharging the output capacitor can be controllably limited such that a bulky precharge resistor is not required anymore to avoid high inrush currents.

Abstract: The invention relates to a method for operating a power converter (1), preferably a solar inverter, for feeding a load current (Iload) into a grid (3). The method includes the steps of determining the load current (Iload), monitoring an output voltage (Uout) of the power converter (1), and controlling the load current (Iload), to avoid that the output voltage (Uout) exceeds a voltage limit (Uout,lim), wherein the voltage limit (Uout,lim) is adjusted in dependency of the load current (Iload). Furthermore the invention relates to a corresponding power converter (1) for connecting to a grid (3), preferably it relates to a solar power converter. This power converter (1) includes a load current sensor (142), an output voltage sensor (143) and a load current controller (141).

Abstract: The invention relates to a method for operating a power converter (1), preferably a solar inverter, for feeding a load current (Iload) into a grid (3). The method includes the steps of determining the load current (Iload), monitoring an output voltage (Uout) of the power converter (1), and controlling the load current (Iload), to avoid that the output voltage (Uout) exceeds a voltage limit (Uout,lim), wherein the voltage limit (Uout,lim) is adjusted in dependency of the load current (Iload). Furthermore the invention relates to a corresponding power converter (1) for connecting to a grid (3), preferably it relates to a solar power converter. This power converter (1) includes a load current sensor (142), an output voltage sensor (143) and a load current controller (141).

Abstract: A PFC circuit according to the invention is connected to a grid, includes an input filter and a rectifier connected to a converter. A control circuit generates the reference current for the current regulator of the converter that controls its input current. Thereby, the reference current is generated by adding an offset current (I0) to a standard reference current and adapting the magnitude of the standard reference current to compensate for a change of the input power resulting from the addition of the offset current (I0). However, due to the addition of the offset current (I0) the magnitudes of some lower harmonic components of the input current of the power supply unit are increased and the magnitudes of some higher harmonic components of the input current are decreased such that the power supply may draw more current from the grid.

Abstract: In an integrated magnetic component for a switched mode power converter, comprising two magnetic cores forming an 8-shaped core structure and at least two first electric winding wires, wherein at least one magnetic core is an E-core, at least one of the first electric winding wires is wound on a flange of the E-core.

Abstract: The invention related to an integrated magnetic component for a switched mode power converter. The integrated magnetic component comprises a single magnetic core structure formed by magnetic core elements, wherein at least one of the magnetic core elements is a leg-core-element with a flange and one or more legs are arranged on one side of the flange. The magnetic core elements of the single magnetic core structure are linearly stacked. The integrated magnetic component further comprises an isolating transformer with a higher current transformer winding arranged on at least one leg of the magnetic core elements, a lower current transformer winding arranged on at least one leg of the magnetic core elements and a first filter inductor comprising a first filter winding, arranged on at least one leg of the magnetic core elements. Herein the higher current transformer winding and the filter winding comprise at least an edgewise wound winding part. The invention further relates to a switched mode power converter.

Abstract: A controller for determining the duty-ratio for a pulse width modulator of a converter includes an inner current loop, an outer voltage loop and a multiplier with an input voltage feed forward to connect both loops. A prediction unit determines a correction signal icor that is added to the reference current iref by means of an adder and it further determines a sample correction signal to correct the current samples in the current loop. This error-controlled duty-ratio prediction with sample correction results in an improved total harmonic distortion as well as in an improved power factor of the converter.

Abstract: An electric power converter has a first converter terminal, a second converter terminal, a converter switch and a snubber circuit. The snubber circuit comprises a snubber switch and a passive network connected to the snubber switch. The snubber circuit is connected to the converter switch, the first converter terminal and the second converter terminal.

Abstract: A solar power inverter includes a number of photovoltaic (PV) inputs for connecting PV modules, a DC-DC converter at each of the PV inputs and a DC-AC inverter for converting the outputs of the DC-DC converters to an AC output power that may be fed into a power grid. The invention provides a method of controlling such a solar power inverter including the steps of identifying a PV input by assigning a priority value to the PV inputs and identifying the PV input with the highest assigned priority value, calculating a set value for the DC-DC converter at the identified PV input that is equal or below a maximum power capacity of the PV module connected to the identified PV input, and applying the set value for the DC-DC converter at the identified PV input.

Abstract: A power supply unit (1) that is to be connected to different types of power supply networks includes an input (2) to receive AC power from the power supply network and an output (3) for providing power to an electrical device. The electrical device may for example be a computer, a telecom infrastructure device, inductive cooking/heating systems or an on-board charger of an electrical automotive vehicle. The power supply unit (1) includes at least two converters (4) that are connected between the inputs (2) and the output (3) and it further includes a controllable switching arrangement (5). The switching arrangement (5) includes a number of controllable switches (6) to controllably connect the converters (4) in different configurations to the input (2) and therefore also controllably to different supply lines of the power supply network.

Abstract: A boost PFC converter includes a rectifier, a converter and an output stage comprising an output capacitor where the DC output voltage is provided across the output capacitor. The rectifier includes four rectifying elements connected in a full bridge configuration where the upper two of these four rectifying elements are thyristors and where the lower two are diodes. In that the thyristors are controlled such as to be open for only a part of each half period of the input voltage, the amount of current per half period that is passed to the output capacitor is controllable and can be made very small. Accordingly, the charge current for precharging the output capacitor can be controllably limited such that a bulky precharge resistor is not required anymore to avoid high inrush currents.

Abstract: A compensating method for a ripple compensation circuit of a power supply is provided. The power supply includes an LLC resonant converter. The LLC resonant converter receives an input voltage and generates an output voltage. Firstly, the output voltage is subtracted from a reference voltage, so that a first error signal is generated. Then, a digital filter is provided to increase a low frequency gain of the first error signal, so that a second error signal is generated. Then, the first error signal and the second signal are added, so that a modulated error signal is generated. Then, a compensation signal is generated to control the LLC resonant converter according to the modulated error signal. Consequently, a low frequency gain of the input voltage is increased and a low frequency ripple of the output voltage is suppressed by an increased voltage loop compensator response.

Abstract: A boost PFC converter includes a rectifier, a converter and an output stage comprising an output capacitor where the DC output voltage is provided across the output capacitor. The rectifier includes four rectifying elements connected in a full bridge configuration where the upper two of these four rectifying elements are thyristors and where the lower two are diodes. In that the thyristors are controlled such as to be open for only a part of each half period of the input voltage, the amount of current per half period that is passed to the output capacitor is controllable and can be made very small. Accordingly, the charge current for precharging the output capacitor can be controllably limited such that a bulky precharge resistor is not required anymore to avoid high inrush currents.

Abstract: A mounting clip for connecting a cable terminal of an electrical cable to an electrical unit comprising a receiving portion for one element of a two-element connection system and a groove for receiving at least a part of a cable terminal and/or part of a cable. A nut can be fixedly held in the receiving portion of the clip. A terminal with an opening can be placed between the nut and an electrical unit. A screw can be threaded into the nut to press the terminal against a surface of the electrical unit.