US Patent 7202713 Power-on bias circuit using Schmitt Trigger

A power-on bias circuit including a first inverter having an input terminal and an output terminal, the input terminal functions as an input terminal of the power-up bias circuit; a second inverter having an input terminal and an output terminal, the output terminal of the second inverter functions as the output terminal for the power-on bias circuit; and a Schmitt Trigger circuit having an input terminal and an output terminal, wherein the input terminal of the Schmitt Trigger circuit is connected to the output terminal of the first inverter, the output terminal of the Schmitt Trigger circuit is connected to the input terminal of the second inverter, the first inverter, the second inverter and the Schmitt Trigger circuit are each in electrical communication with a voltage input terminal and ground.