An inverter circuit comprising: a first full-bridge circuit module configured to convert DC voltage into AC voltage; and a second full-bridge circuit module configured to clamp an output of the first full-bridge circuit module, wherein output terminals (T15, T18) of the first full-bridge circuit module are connected in parallel to output terminals (T25, T28) of the second full-bridge circuit module, wherein the output terminals (T25, T28) of the second full-bridge circuit module are connected to output terminals (T01, T02) of the inverter circuit, the inverter circuit characterized in that each of the first and second full-bridge circuit modules (F1; F2) includes the same number of switching elements (Q11-Q14; Q21-Q24) and corresponding rectifying elements (D11-D14; D21-D24), a conduction loss of the switching elements (Q21-Q24) of the second full-bridge circuit module is less than or equal to a conduction loss of the switching elements (Q11-Q14) of the first full-bridge circuit module, a conduction loss of the rectifying elements (D21-D24) of the second full-bridge circuit module is less than or equal to a conduction loss of the rectifying elements (D11-D14) of the first full-bridge circuit module, a switching speed of the switching elements (Q11-Q14) of the first full-bridge circuit module is higher than or equal to a switching speed of the switching elements (Q21-Q24) of the second full-bridge circuit module, and a switching speed of the rectifying elements (D21-D24) of the second full-bridge circuit module is higher than or equal to a switching speed of the rectifying elements (D11-D14) of the first full-bridge circuit module. a first full-bridge circuit module configured to convert DC voltage into AC voltage; and a second full-bridge circuit module configured to clamp an output of the first full-bridge circuit module, wherein output terminals (T15, T18) of the first full-bridge circuit module are connected in parallel to output terminals (T25, T28) of the second full-bridge circuit module, wherein the output terminals (T25, T28) of the second full-bridge circuit module are connected to output terminals (T01, T02) of the inverter circuit, the inverter circuit characterized in that each of the first and second full-bridge circuit modules (F1; F2) includes the same number of switching elements (Q11-Q14; Q21-Q24) and corresponding rectifying elements (D11-D14; D21-D24), a conduction loss of the switching elements (Q21-Q24) of the second full-bridge circuit module is less than or equal to a conduction loss of the switching elements (Q11-Q14) of the first full-bridge circuit module, a conduction loss of the rectifying elements (D21-D24) of the second full-bridge circuit module is less than or equal to a conduction loss of the rectifying elements (D11-D14) of the first full-bridge circuit module, a switching speed of the switching elements (Q11-Q14) of the first full-bridge circuit module is higher than or equal to a switching speed of the switching elements (Q21-Q24) of the second full-bridge circuit module, and a switching speed of the rectifying elements (D21-D24) of the second full-bridge circuit module is higher than or equal to a switching speed of the rectifying elements (D11-D14) of the first full-bridge circuit module.