Patent ID: 7999602
Filing Date: 2011-08-16
Classification: H03K

Abstract:
1. A switching control circuit for driving a first switching element and a second switching element composing a half-bridge circuit comprising: a first output terminal that outputs a first drive signal to the first switching element based on a first pulse signal and a second pulse signal; a second output terminal that outputs a second drive signal to the second switching element based on the first pulse signal and the second pulse signal; a first input terminal that inputs the first pulse signal from an external circuit; a second input terminal that inputs the second pulse signal from an external circuit; and a protecting circuit that outputs the first drive signal and the second drive signal that turn OFF at least one of the first switching element and the second switching element upon inputting the first pulse signal and the second pulse signal, wherein the protecting circuit has a logic circuit configured to allow the first drive signal and the second drive signal that turn OFF the first switching element and the second switching element respectively to be output, when the first pulse signal and the second pulse signal are signals that turn ON the first switching element and the second switching element, respectively.