Patent ID: 8456463
Filing Date: 2013-06-04
Classification: G09G

Abstract:
1. A low voltage driver comprising: a plurality of input terminals for respective bias voltages; an output terminal; an input transistor switching circuit having at least an input transistor for each bias voltage, each input transistor coupled on a first side to a respective input terminal and on a second side to a common node shared with at least one other input transistor; an output transistor switching circuit, responsive to said input transistor switching circuit having a plurality of output transistors, each output transistor coupled on a first side to the output terminal and on a second side to a respective common node of the input transistors; a level shifter providing a set of switching voltages to the plurality of input and output transistors; a logic circuit applying the set of switching voltages to said input and output transistor switches to connect a selected one of said bias voltages to said output terminal; and a safety mode monitor circuit that when a selected bias voltage has a magnitude that exceeds a breakdown voltage of the input and output transistor switches that couple the selected bias voltage to the output terminal,