Patent ID: 6919752
Filing Date: 2005-07-19
Classification: G09G,H03K

Abstract:
1. A level shifter, comprising: a controller for using a first power supply or a second power supply in accordance with an input voltage to apply a voltage to a first node, wherein a voltage level of the applied voltage is opposite a voltage level of the input voltage; an output part for using one of a first pair of power supplies or a second pair of power supplies in accordance with the voltage applied to the first node to apply an output voltage, wherein a voltage level of the output voltage at a second node is opposite the voltage level of the voltage applied to the first node, wherein the first pair of power supplies includes the first power supply and a third power supply, and wherein the second pair of power supplies includes the first power supply and the second power supply; and an inverter directly connected to the second node, wherein the inverter inverts a voltage level of the output voltage and outputs the inverted output voltage using the first power supply and the third power supply.