Magnetic component, power converter and power supply system

A power converter comprising:

• first and second reactors configured by a magnetic component electrically connected between a DC power source and a load;
• a plurality of switching elements arranged between said DC power source and said load such that a first current flowing through said first reactor and a second current flowing through said second reactor are controlled independently;
• and
• a control device configured to control on/off of said plurality of switching elements so as to control an output voltage on a power line connected to said load,
• said magnetic component including:
• first and second windings connected in series and forming said first reactor;
• and
• a third winding forming second reactor;
• and
• a core configured to include a first section on which said first winding is wound, a second section on which said second winding is wound, and a third section on which said third winding is wound,
• said first to third windings being wound on said first to third sections, respectively, such that, in a state where magnetic saturation does not occur in said core, a magnetic flux produced from said first winding and flowing through said third winding and a magnetic flux produced from said second winding and flowing through said third winding counteract each other, when said first current flows through said first and second windings, and induced voltages produced in said first and second windings, respectively, by a magnetic flux produced from said third winding counteract each other, when said second current flows through said third winding, and
• said control device controlling a phase difference between a first carrier signal used for first pulse width modulation control for controlling power conversion in a first power conversion path through which said first current flows and a second carrier signal used for second pulse width modulation control for controlling power conversion in a second power conversion path through which said second current flows such that any critical point of one of said first and second currents coincides with any critical point of the other one of said first and second currents in phase, and then generates signals for controlling on/off of said plurality of switching elements in accordance with said first and second pulse width modulation control.