RF Power Amplifier Mirror Circuit for Sensing Current
Published: September 11, 2008
Inventors: Salove; Matthew J.; (Portland, OR) ; Davenport; William H.; (Portland, OR) ; Parkhurst; Ray M.; (Hillsboro, OR) ; Cho; Jin W.; (Hillsboro, OR)
Abstract: An apparatus and method is disclosed for providing a mirror circuit for detecting a change in current of a RF power amplifier. The mirror circuit includes a voltage operably coupled with the mirror circuit, a bias circuit operably coupled with the mirror circuit, wherein the bias circuit is capable of applying a bias voltage to the mirror circuit, and an output reference signal. The output reference signal is proportional to the change of current in the RF power amplifier.
Posted in To Review, Trademark Articles