Patent ID: 7102452
Filing Date: 2006-09-05
Classification: H03B,H03K

Abstract:
1. A method comprising: (a) detecting when a node voltage reaches a first trigger voltage, wherein the node voltage reaches the first trigger voltage at a start time, wherein a delay period begins at the start time and ends at an end time, and wherein the delay period is dependent on an inverter source current; (b) inverting a digital signal at the end time; (c) detecting when the node voltage reaches a second trigger voltage, wherein a remainder period begins at the end time and ends when the node voltage reaches the second trigger voltage, and wherein the second trigger voltage is a first voltage at a first temperature and a second voltage at a second temperature; and (d) generating the inverter source current such that the sum of the delay period plus the remainder period remains substantially constant at the first temperature and at the second temperature.