US 12,323,103 B2
Wide bandwidth envelope tracking integrated circuit
Nadim Khlat, Cugnaux (FR)
Assigned to Qorvo US, Inc., Greensboro, NC (US)
Filed by Qorvo US, Inc., Greensboro, NC (US)
Filed on Nov. 11, 2021, as Appl. No. 17/523,999.
Claims priority of provisional application 63/185,923, filed on May 7, 2021.
Prior Publication US 2022/0360227 A1, Nov. 10, 2022
Int. Cl. H03F 1/02 (2006.01); H03F 3/19 (2006.01)
CPC H03F 1/0216 (2013.01) [H03F 3/19 (2013.01); H03F 2200/105 (2013.01); H03F 2200/375 (2013.01); H03F 2200/451 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An envelope tracking (ET) integrated circuit (ETIC) comprising:
an ET voltage circuit configured to generate an ET voltage based on an ET target voltage for amplifying a radio frequency (RF) signal modulated for transmission in a plurality of time intervals;
a target voltage generation circuit configured to generate the ET target voltage based on a power envelope of the RF signal; and
a target voltage processing circuit configured to:
receive the ET voltage from the target voltage generation circuit;
modify the ET target voltage in each of the plurality of time intervals to generate a modified ET target voltage in response to the RF signal being modulated in a modulation bandwidth higher than or equal to a bandwidth threshold; and
provide the modified ET target voltage to the ET voltage circuit as the ET target voltage to thereby cause the ET voltage circuit to generate the ET voltage based on the modified ET target voltage.