Patent ID: 9742388
Date: 2017-08-22
CPC Classifications: G06F,H03K

Claim:
1. A driver circuit, comprising: a first transistor connected between a line of a first voltage and an output terminal; a second transistor connected between the output terminal and a line of a second voltage lower than the first voltage; a first control circuit having first and second power source nodes and configured to provide a voltage of the first power source node to a control electrode of the first transistor in response to an input signal being set to a first logic level so as to turn on the first transistor and to provide a voltage of the second power source node to the control electrode of the first transistor in response to the input signal being set to a second logic level so as to turn off the first transistor; and a second control circuit having third and fourth power source nodes and configured to provide a voltage of the fourth power source node to a control electrode of the second transistor in response to the input signal being set to the first logic level so as to turn off the second transistor and to provide a voltage of the third power source node to the control electrode of the second transistor in response to the input signal being set to the second logic level so as to turn on the second transistor, wherein each of the first and second transistors is a normally-on transistor, wherein the first power source node is connected to the output terminal, wherein the third power source node receives the second voltage, wherein the fourth power source node receives a third voltage lower than the second voltage, and wherein the driver circuit further includes