Drive circuit for an electromagnetic fuel injection system

A drive circuit (100) of an electromagnetic system fuel injection apparatus comprises a valve seat (4), a valve body (3, 16) for performing an opening and a closing of a fuel passage between said valve seat, at least two coils (11, 12), and a drive means (1) for driving said valve body, and by opening and closing said fuel passage a fuel is injected, wherein the drive circuit comprises a reverse flow prevention diode (130a) for preventing a coil current from a reverse flowing relative to an application voltage according to a mutual inductance.