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.

A power supply includes an inverter configured to direct current (DC) power into alternating current (AC) power, an impedance matching circuit configured to supply the AC power to a load; and a controller configured to adjust disposition of a powering period, in which the AC power is output, and a freewheeling period, in which the AC power is not output, to adjust a power amount of the power supplied to the load through the impedance matching circuit by the inverter.

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.

Disclosed is a semiconductor integrated circuit for a regulator for forming a low current consumption type DC power supply device. The semiconductor integrated circuit includes an output transistor, a control circuit, an operation control transistor and a soft start circuit. The output transistor is connected between an output terminal and a voltage input terminal to which a DC voltage is input. The control circuit controls the output transistor according to a feedback voltage of an output. The operation control transistor controls an operation state of the control circuit. The soft start circuit gradually changes a voltage applied to a control terminal of the operation control transistor and delays activation of the control circuit at a time of applying a power supply voltage to the voltage input terminal.

Disclosed is a semiconductor integrated circuit for a regulator for forming a low current consumption type DC power supply device. The semiconductor integrated circuit includes an output transistor, a control circuit, an operation control transistor and a soft start circuit. The output transistor is connected between an output terminal and a voltage input terminal to which a DC voltage is input. The control circuit controls the output transistor according to a feedback voltage of an output. The operation control transistor controls an operation state of the control circuit. The soft start circuit gradually changes a voltage applied to a control terminal of the operation control transistor and delays activation of the control circuit at a time of applying a power supply voltage to the voltage input terminal.

Disclosed herein are power conversion devices comprising power modules, capacitor modules, and support frames. The power modules may be operable to convert direct current (DC) electricity to alternating current (AC) electricity. The capacitor modules may be electrically connected to the power modules. The support frames may house the power modules and conductor plates, and the capacitor modules may be at least partially wound around exterior sides of the support frames. Such arrangements may advantageously take up less installation space and/or have better form factors than power conversion devices with cylindrical capacitors.

A noise filter circuit includes a filter and a transistor off-resistance control circuit. The filter includes a first transistor and a charge storage component. The first transistor has off-resistance when turned off or operated under sub-threshold region. A control terminal of the first transistor is not directly tied to a reference voltage, and is used to receive a first control voltage. The charge storage component has one terminal coupled to a connection terminal of the first transistor. The transistor off-resistance control circuit is coupled to the first transistor, and arranged to set the first control voltage for controlling the off-resistance of the first transistor.

A noise filter circuit includes a filter and a transistor off-resistance control circuit. The filter includes a first transistor and a charge storage component. The first transistor has off-resistance when turned off or operated under sub-threshold region. A control terminal of the first transistor is not directly tied to a reference voltage, and is used to receive a first control voltage. The charge storage component has one terminal coupled to a connection terminal of the first transistor. The transistor off-resistance control circuit is coupled to the first transistor, and arranged to set the first control voltage for controlling the off-resistance of the first transistor.

An apparatus includes a plurality of input nodes configured to receive a multiphase alternating current (AC) input signal. The apparatus further includes a plurality of inductors, a neutral terminal, a first plurality of output nodes, and a second plurality of output nodes. The plurality of inductors is coupled to the plurality of input nodes, and the neutral terminal is coupled to the plurality of inductors. The first plurality of output nodes is coupled to the plurality of inductors and is configured to output a first multiphase AC output signal. The second plurality of output nodes is coupled to the plurality of inductors and is configured to output a second multiphase AC output signal.