The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2024
Filed:
Aug. 30, 2022
Applicant:
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Inventors:
John L. Melanson, Austin, TX (US);
Eric J. King, Austin, TX (US);
Thomas H. Hoff, Austin, TX (US);
Lingli Zhang, Austin, TX (US);
Assignee:
Cirrus Logic Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 (2006.01); H03M 1/82 (2006.01);
U.S. Cl.
CPC ...
H03M 1/0626 (2013.01); H03M 1/0612 (2013.01); H03M 1/822 (2013.01);
Abstract
Pulse width modulation (PWM) driver circuitry comprising: a loop filter configured to receive an analog input signal and to output a digital loop filter output signal based on the analog input signal and an analog feedback signal; and a PWM modulator configured to receive a digital signal based on the digital loop filter output signal and to output a PWM signal, wherein the PWM driver circuitry further comprises a feedback path coupled to an output of the PWM driver circuitry for the analog feedback signal.