Electronic power converter circuit apparatus provided with inverter circuit including bridge circuit with switch elements

An electric power converter circuit apparatus including an inverter circuit including a bridge circuit, the inverter circuit provided between first and second input terminals and first, second and third output terminals,

• wherein the bridge circuit is configured by connecting in parallel
• (A) a first series circuit including first and second switch elements connected in series to each other;
• (B) a second series circuit including third and fourth switch elements connected in series to each other, and
• (C) a third series circuit including fifth and sixth switch elements connected in series to each other,
• wherein both ends of the first series circuit, both ends of the second series circuit, and both ends of the third series circuit are defined as first and second connection points, respectively, and are connected to the first and second input terminals via first and second inductances,
• wherein a third connection point of the first and second switch elements is connected to the first output terminal via a third inductance,
• wherein a fourth connection point of the third and fourth switch elements is connected to the second output terminal via a fourth inductance,
• wherein a fifth connection point of the fifth and sixth switch elements is connected to the third output terminal via a fifth inductance, and
• wherein the electric power converter circuit apparatus comprises:
• a first impedance element connected between the third connection point and the first or second input terminal;
• a second impedance element connected between the fourth connection point and the first or second input terminal;
• a third impedance element connected between the fifth connection point and the first or second input terminal;
• a fourth impedance element connected between the first output terminal and the first or second input terminal;
• a fifth impedance element connected between the second output terminal and the first or second input terminal;
• and
• a sixth impedance element connected between the third output terminal and the first or second input terminal.

An electric power converter circuit apparatus comprising:

• an inverter circuit including a bridge circuit, the inverter circuit provided between first and second input terminals and first and second output terminals,
• wherein the bridge circuit is configured by connecting in parallel:
• a first series circuit including first and second switch elements connected in series to each other;
• and a second series circuit including third and fourth switch elements connected in series to each other,
• wherein both ends of the first series circuit and both ends of the second series circuit are defined as first and second connection points, respectively, and are connected to the first and second input terminals via first and second inductances,
• wherein a third connection point of the first and second switch elements is connected to the first output terminal via a third inductance,
• wherein a fourth connection point of the third and fourth switch elements is connected to the second output terminal via a fourth inductance, and
• wherein the electric power converter circuit apparatus comprises:
• a first impedance element connected between the third connection point and the first or second input terminal;
• a second impedance element connected between the fourth connection point and the first or second input terminal;
• a third impedance element connected between the first output terminal and the first or second input terminal;
• and
• a fourth impedance element connected between the second output terminal and the first or second input terminal,
• wherein the electric power converter circuit apparatus further comprises:
• a noise filter circuit connected to an input terminal of the electric power converter circuit apparatus;
• and
• a three-phase motor connected to an output terminal of the electric power converter circuit apparatus.