Patent attributes
The present invention provides a driving circuit of a switching transistor, the driving circuit capable of suppressing an output voltage from changing sharply. A driver circuit includes a first transistor to a fourth transistor and a pre-driver. The pre-driver (i) provides a first gate signal having a negative edge slope smaller than a positive edge slope to the gate of the first transistor, (ii) provides a second gate signal having a positive edge slope smaller than a negative edge slope to the gate of the second transistor, (iii) provides a third gate signal having a positive edge slope smaller than the positive edge slope of the first gate signal to the gate of the third transistor, and (iv) provides a fourth gate signal having a negative edge slope smaller than the negative edge slope of the second gate signal to the gate of the fourth transistor.