Electric power conversion circuit

An electric power conversion device comprising:

• a transformer comprised of a primary winding and secondary windings;
• a switching section connected to the primary winding of the transformer and comprised of switching elements in which a first pair of switching elements connected in series are connected in parallel to a second pair of switching elements connected in series;
• a reference signal generation section configured to generate a reference signal having a predetermined period and output the reference signal;
• a current detection section configured to detect a current flowing in one of the transformer and the switching section;
• a reset signal generation section configured to generate and output a reset signal when the current detected by the current detection section exceeds an instruction current value;
• and
• a driving section configured to generate drive signals, which are used for driving the first and second pair of switching elements, on a basis of the reset signal when the reset signal generation section outputs the reset signal, and to generate drive signals on a basis of the reference signal when the reset signal generation section does not output the reset signal,
• wherein the drive section comprises a first drive section and a second drive section, and
• the first drive section is configured to generate a first drive signal on a basis of a timing when a first reference signal is inverted, and to drive the first pair of the switching elements connected in series on a basis of a timing when the first drive signal is inverted, and
• the second drive section is configured to generate a second drive signal on a basis of the reset signal when the reset signal generation section outputs the reset signal, and on a basis of a timing at which a second reference signal is inverted, and
• the second drive section is configured to drive the second pair of the switching elements connected in series on a basis of a timing when the second drive signal is inverted.