Patent ID: 6801065
Filing Date: 2004-10-05
Classification: H02M,H03K

Abstract:
A transistor output circuit comprising:a pre-driving circuit having a first CMOS circuit driven by an input signal, which is connected between an electric power unit and a ground; a main driving circuit having an NPN-type transistor and a PNP-type transistor driven by an output of the pre-driving circuit, which-are connected between the electric power unit and the ground in series, and outputting an output signal from a series connection point of the NPN-type transistor and the PNP-type transistor; and an auxiliary driving circuit having a second CMOS circuit driven by the input signal and a current limit resistor for limiting an output current of the second CMOS circuit, which are connected between the electric power unit and the ground, wherein an output point of the auxiliary driving circuit is connected to the series connection point.