Patent ID: 7535268

Claim:
A system for driving an inductive load to which an external power supply and a ground are connected, comprising: a first switching element inserted in a position between the external power supply and the inductive load to be turned on and off in response to a first driving signal; a second switching element inserted in a position between the inductive load and the ground to be turned on and off in response to a second driving signal; a return current circuit including a first branch path which diverges at a location between the first switching element and the inductive load to be connected to the ground, the return current circuit returning counter electromotive current generated due to counter electromotive voltage of the inductive load to the ground when the second switching element is turned on, and a counter electromotive current reduction circuit including a second branch path which diverges at a location between the inductive load and the second switching element to be connected to the external power supply, the counter electromotive current reduction circuit reducing the counter electromotive current to the external power supply when the first and second switching elements are turned off.