Back to results
US 9,065,405 B2Granted
Compensating for non-linear capacitance effects in a power amplifier
AssigneeAvago Technologies General IP (Singapore) Pte. Ltd.
InventorsDavid E. Bockelman, Vishnu Srinivasan
Life of this patent
Estimating the term…
Abstract
In one implementation, a power amplifier may include a gain device to receive an input signal and to output an amplified signal, and a compensation device coupled to the gain device to compensate for a change in a capacitance of the gain device occurring due to a change in the input signal. The power amplifier may be formed using a complementary metal oxide semiconductor (CMOS) process.
Claims11
A power amplifier comprising:
- a gain stage having first and second complementary amplifiers, the gain stage to receive a differential input signal on a differential input line and to output a differential amplified signal;
- a first compensation stage having a first compensation device coupled to a first amplifier of the first complementary amplifier and a second compensation device coupled to a first amplifier of the second complementary amplifier;
- and
- a second compensation stage having a first compensation device coupled to a second amplifier of the first complementary amplifier and a second compensation device coupled to a second amplifier of the second complementary amplifier, wherein each compensation device is to compensate for a change in capacitance of the corresponding amplifier when the differential input signal is in a predetermined transition region of an input range.
1 more element
Dependencies are inferred from the claim text.