Abstract: A driver circuit for a stepping motor includes first and second windings for two-phase magnetization to give a magnetomotive force to the stepping motor. A first control signal and a second control signal are generated by a control circuit when the stepping motor seeks and is held respectively. The first and second windings are connected in series or in parallel with a power supply in response to the first control signal or the second control signal, respectively. The directions of the currents flowing through the first and second windings are controlled in response to the control signals. The connections of the windings and the current flow directions through the windings are controlled by MOS transistors.