Patent ID: 6842046

Claim:
A method for converting an input signal, comprising an input voltage from a low voltage source, to an output signal, comprising an output voltage from a high voltage source, by a digital circuit, comprising a pull-down logic network coupled to a node, the high voltage source having a voltage level greater than the low voltage source, said method comprising: precharging said node to a high voltage using said high voltage source during a first period of time, said step including turning on a first transistor that is coupled between said high voltage source and said node; turning off the first transistor during a subsequent second period of time; receiving said input voltage from said low voltage source by said pull-down logic network; determining a voltage of said node based on evaluating said pull-down logic network during the subsequent second period of time, the conductance between said node and said high voltage source being at the low level during the determination step; and using said voltage of said node, determining said output voltage.