System for detecting current in an output stage of a power...

Details System for detecting current in an output stage of a power... System for detecting current in an output stage of a power...

2008-01-01

2008-01-01

Nguyen, Matthew V. (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

C330S127000

Reexamination Certificate

active

07315152

ABSTRACT:
A system for detecting current in an output stage of power amplifier circuitry in a transmitter of a mobile terminal is provided. In general, the mobile terminal includes power amplifier circuitry, power control circuitry, current detection circuitry, and an inductor that essentially prevents radio frequency coupling between the power control circuitry and the power amplifier circuitry. Based on a voltage across the inductor, the current detection circuitry generates a voltage detection signal indicative of a current in the inductor and thus the current in an output stage of the power amplifier.

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