US 12,456,940 B2
Modulation signal generation avoiding forbidden regions
Hamid Behjati Najafabadi, Los Angeles, CA (US); and Benjamin Tang, Rancho Palos Verdes, CA (US)
Assigned to Infineon Technologies Austria AG, Villach (AT)
Filed by Infineon Technologies Austria AG, Villach (AT)
Filed on Oct. 30, 2023, as Appl. No. 18/497,533.
Prior Publication US 2025/0141376 A1, May 1, 2025
Int. Cl. H02P 1/04 (2006.01); H02P 7/29 (2016.01)
CPC H02P 7/29 (2013.01) [H02P 2201/11 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for generating an applicable control signal, comprising:
a control module operable to generate a reference control signal that avoids, but is effectively within, a forbidden region by alternating the reference control signal between upper and lower levels of the forbidden region;
an error determination module operable to generate an error signal based on a difference between the reference control signal and the applicable control signal; and
a compensation module operable to noise-shape the error signal to suppress a portion of the error signal resulting from avoiding the forbidden region, and to modify the reference control signal based on the noise-shaped error signal,
wherein the modified reference control signal is output by the apparatus as the applicable control signal for generating a modulation signal.