An apparatus and method for managing power output of a converter has been provided by present disclosure having an electrical entry power sensor for measuring power drawn by an electrical entry of a household, a power drawn increase prediction module, a power budget controller managing power allocation to restrict a current level output by the power converter so as to prevent power drawn by the electrical entry from exceeding a predefined limit should the greatest probable jump in power drawn occur, a user interface allowing a user to request changes to said current level output by the power converter to charge an electric vehicle, wherein the power budget controller makes suggestions to said user to adjust said power drawn and has the user confirm said changes in order to reallocate said allocation according to said user's adjustments.

An apparatus and method for managing power output of a converter has been provided by present disclosure having an electrical entry power sensor for measuring power drawn by an electrical entry of a household, a power drawn increase prediction module, a power budget controller managing power allocation to restrict a current level output by the power converter so as to prevent power drawn by the electrical entry from exceeding a predefined limit should the greatest probable jump in power drawn occur, a user interface allowing a user to request changes to said current level output by the power converter to charge an electric vehicle, wherein the power budget controller makes suggestions to said user to adjust said power drawn and has the user confirm said changes in order to reallocate said allocation according to said user's adjustments.

An inverter for an electric machine is provided. The electric machine includes a rotor and a stator. The inverter includes a DC/AC converter and a DC/DC converter. The DC/AC converter includes at least one chip of silicon carbide having at least one MOSFET. The DC/DC converter includes at least one chip of silicon having at least one IGBT. The DC/DC converter is connectible to a first one of the rotor or the stator of the electric machine and the DC/AC converter is connectible to a second one of the rotor or the stator of the electric machine.

A system includes a braking resistor and a controllable switch connected in series, the controllable switch adapted to connect to a terminal on a direct-voltage side of an AC/DC converter; an evaluation unit adapted to generate a control signal to control the controllable switch and including a determination device adapted to determine electric power supplied to the braking resistor; a voltage-acquisition device adapted to supply an output signal to the evaluation unit; and a controller adapted to regulate a set value toward an output signal of the determination device, the controller adapted to supply, directly and/or via a limiter, to a parameterizable filter adapted to convey an output signal to a switching element, the switching element adapted to generate an output signal to open and/or close the controllable switch as a function of exceeding and/or undershooting of a threshold value.

A system includes a braking resistor and a controllable switch connected in series, the controllable switch adapted to connect to a terminal on a direct-voltage side of an AC/DC converter; an evaluation unit adapted to generate a control signal to control the controllable switch and including a determination device adapted to determine electric power supplied to the braking resistor; a voltage-acquisition device adapted to supply an output signal to the evaluation unit; and a controller adapted to regulate a set value toward an output signal of the determination device, the controller adapted to supply, directly and/or via a limiter, to a parameterizable filter adapted to convey an output signal to a switching element, the switching element adapted to generate an output signal to open and/or close the controllable switch as a function of exceeding and/or undershooting of a threshold value.

A disclosed intermediate circuit arrangement includes first and second partial circuit boards of identical design having a series circuit of at least two capacitor banks. The partial circuit boards each have a terminal strip having a positive intermediate circuit connection, a negative intermediate circuit connection, and a central connection. The circuit arrangement also includes a connecting circuit board for electrically connecting the respective connections of the terminal strips of the two partial circuit boards to one another. The connecting circuit board is a multi-layer circuit board with two outer metal layers and at least two inner metal layers arranged between the outer metal layers. The outer metal layers have an electric connection between corresponding connections of the terminal strips of the two partial circuit boards, and at least one first metal layer of the inner metal layers has only an electrical connection of the positive intermediate circuit connections of the two partial circuit boards and at least one second metal layer of the inner metal layers has only an electrical connection of the negative intermediate circuits of the two partial circuit boards. The intermediate circuit arrangement can be part of an inverter.

A disclosed intermediate circuit arrangement includes first and second partial circuit boards of identical design having a series circuit of at least two capacitor banks. The partial circuit boards each have a terminal strip having a positive intermediate circuit connection, a negative intermediate circuit connection, and a central connection. The circuit arrangement also includes a connecting circuit board for electrically connecting the respective connections of the terminal strips of the two partial circuit boards to one another. The connecting circuit board is a multi-layer circuit board with two outer metal layers and at least two inner metal layers arranged between the outer metal layers. The outer metal layers have an electric connection between corresponding connections of the terminal strips of the two partial circuit boards, and at least one first metal layer of the inner metal layers has only an electrical connection of the positive intermediate circuit connections of the two partial circuit boards and at least one second metal layer of the inner metal layers has only an electrical connection of the negative intermediate circuits of the two partial circuit boards. The intermediate circuit arrangement can be part of an inverter.

A stacked half bridge converter may be configured to provide an AC output voltage from either a DC or an AC input voltage. The switching devices of the converter may be operated according to a plurality of switching sequences, each switching sequence including one or more switching patterns, each switching pattern including one or more switching states of the switching devices. The switching sequences, patterns, and states may be selected to improve operation of the converter, by regulating the voltage at a neutral point of the converter to reduce ripple, increase switching efficiency, protect the switching devices from overvoltages, and the like.

A stacked half bridge converter may be configured to provide an AC output voltage from either a DC or an AC input voltage. The switching devices of the converter may be operated according to a plurality of switching sequences, each switching sequence including one or more switching patterns, each switching pattern including one or more switching states of the switching devices. The switching sequences, patterns, and states may be selected to improve operation of the converter, by regulating the voltage at a neutral point of the converter to reduce ripple, increase switching efficiency, protect the switching devices from overvoltages, and the like.

The present invention provides an adaptively modulated multi-state inverter system, comprising: a split capacitor, four bridge arms and an isolation switch group, on each of the four bridge arms a pair of complementary power switch groups is arranged; the isolation switch group comprises four fuses and six bidirectional thyristors. The output branches of the first bridge arm, the second bridge arm and the third bridge arm are respectively connected in series with a fuse to output a three-phase voltage, and at three-phase output voltage side two shared auxiliary branches are arranged, one auxiliary branch starts from the fourth bridge arm output branch on which a fuse is connected in series and is then connected to the output terminal of the three-phase voltage via three bidirectional thyristors. The other auxiliary branch starts from the DC side feed branch from the midpoint of the split capacitor, and is connected with the output terminal of the three-phase voltage via three bidirectional thyristors respectively. The invention also provides a modulating method of the multi-state inverter system. The use of the adaptive modulating technology enables the multi-state inverter to have the functions of overcurrent protection, isolation of faulty bridge arms and fault-tolerant control on any single and double bridges.