US 12,228,953 B2
Fault communication in voltage regulator systems
Omeshwar Lawange, Carlsbad, CA (US); and Vinit Jayaraj, Carlsbad, CA (US)
Assigned to MAXLINEAR, INC., Carlsbad, CA (US)
Filed by MAXLINEAR, INC., Carlsbad, CA (US)
Filed on Mar. 14, 2022, as Appl. No. 17/654,805.
Claims priority of provisional application 63/163,674, filed on Mar. 19, 2021.
Prior Publication US 2022/0300019 A1, Sep. 22, 2022
Int. Cl. G05F 1/56 (2006.01); G05F 1/567 (2006.01); H02M 1/00 (2007.01); H03M 1/50 (2006.01); H03M 1/66 (2006.01); H03M 1/72 (2006.01)
CPC G05F 1/567 (2013.01) [H03M 1/508 (2013.01); H03M 1/662 (2013.01); H03M 1/72 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A system, comprising: a voltage regulator controller configured to maintain a phase voltage; a driver associated with the phase voltage, the driver including a first signal line communicatively coupled to the voltage regulator controller, wherein the driver is configured to transmit a multiplexed signal on the first signal line to the voltage regulator controller, wherein a first ring oscillator configured to be the voltage regulator controller clock input and a second ring oscillator configured to be a driver clock input, the first ring oscillator and the second ring oscillator configured to provide asynchronous timing to the voltage regulator controller and the driver.