公开(公告)号：US20240187016A1

公开(公告)日：2024-06-06

申请号：US18098544

申请日：2023-01-18

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Vamsikrishna PARUPALLI ,  Mikel ASH ,  Jianping WEN ,  Melvin L. HAGGE

IPC: H03M1/46

CPC classification number: H03M1/466

Abstract: A SAR ADC may include a plurality of capacitor networks, wherein each capacitor network of the a plurality of capacitor networks has a plurality of sampling capacitors for sampling over a plurality of sampling sub-phases an analog input signal to the SAR ADC and at least one non-sampling capacitor. The SAR ADC may also include a DAC comprising a plurality of sub-DACs including at least a first sub-DAC representing most significant bits of an output of the SAR ADC, wherein the output of the first sub-DAC is coupled to the sampling capacitors of the plurality of capacitor networks and a second sub-DAC representing bits of the output of the SAR ADC lesser in magnitude significance than those of the first sub-DAC, wherein the output of the second sub-DAC is coupled to a respective one of at least one non-sampling capacitor of each of the plurality of capacitor networks.

公开(公告)号：US20190181754A1

公开(公告)日：2019-06-13

申请号：US16202463

申请日：2018-11-28

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Mikel ASH ,  Eric J. KING ,  Lingli ZHANG ,  Graeme G. MACKAY

IPC: H02M3/157 ,  H02M3/158 ,  H03M1/06 ,  H04R3/00

Abstract: A method may include controlling switching behavior of switches of a switch-mode power supply based on a desired physical quantity associated with the switch-mode power supply, wherein the desired physical quantity is based at least in part on a slope compensation signal and generating the slope compensation signal to have a compensation value of approximately zero at an end of a duty cycle of operation of the switch-mode power supply.