Patent ID: 7295056

Claim:
A level shift circuit comprising: a plurality of level converters, and a single control circuit connected to the plurality of level converters, for supplying a set of control signals to each level converter simultaneously such that the set of control signals supplied to each of the plurality of level converters is the same, each one of the plurality of level converters comprising: a first P-channel transistor connected in series with a first N-channel transistor with a gate for receiving an input signal at a first voltage, and a second N-channel transistor, all between a second voltage source and ground; an input of a first inverter connected to a drain of the first P-channel transistor, an output of the first inverter connected to an input of a second inverter; and a capacitance connected to the input of the first inverter; wherein the single control circuit supplies said set of control signals to a gate of the first P-channel transistor and a gate of the second N-channel transistor, respectively, and one of the output of the first inverter or an output of the second inverter is for outputting signals at the second voltage.