DRIVER CIRCUIT

PURPOSE:To suppress the occurrence of malfunction by providing a buffer circuit forming control signals not going to an H level at the same time from the input so as to prevent a large through-current from causing to flow therethrough. CONSTITUTION:With an input at an H level, an output of a push-pull circuit PP circuit 7 goes to an L level and an output of a PP circuit H goes to an H level and an output of a PP circuit 10 goes to an L level. With the input going to an L level next, while the output of the PP circuit 8 is at an H level, an output of a NOR gate 5 goes to an L level. As a result, an output of the PP circuit 7 holds an L level, and the input goes through an inverter 1, a NOR gate 6 and an inverter 3 and the output of the PP circuit 8 goes to an L level, then the output of the NOR gate 5 goes to an B level, resulting that the output of the PP circuit 7 goes to an H level. Thus, outputs of the PP circuits 7, 8 do not go to H level at the same time, a large through-current flowing is prevented. Thus, the occurrence of malfunction is suppressed.