US 12,334,828 B2
Multi-phase voltage regulator system
Russell Kinder, Austin, TX (US)
Assigned to Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu (TW)
Filed by Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu (TW)
Filed on Jul. 20, 2023, as Appl. No. 18/355,590.
Application 18/355,590 is a continuation of application No. 17/745,539, filed on May 16, 2022, granted, now 11,949,336.
Application 17/745,539 is a continuation of application No. 16/425,376, filed on May 29, 2019, granted, now 11,336,183, issued on May 17, 2022.
Application 16/425,376 is a continuation of application No. 15/941,496, filed on Mar. 30, 2018, granted, now 10,320,296, issued on Jun. 11, 2019.
Claims priority of provisional application 62/563,866, filed on Sep. 27, 2017.
Prior Publication US 2023/0361682 A1, Nov. 9, 2023
Int. Cl. H02M 3/158 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/1584 (2013.01) [H02M 1/0025 (2021.05); H02M 3/1588 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for operating a voltage regulator, comprising:
generating an output signal of the voltage regulator from a first charging signal and a second charging signal;
comparing the output signal to a reference input signal to generate a global error signal;
combining the global error signal and a reference signal pathway error signal to generate a regulation signal;
generating, by comparing the regulation signal to a switching clocking signal, the first charging signal based on an amplitude difference between the regulation signal and the switching clocking signal;
comparing the first and second charging signals to generate a local error signal; and
combining the global and local error signals to generate the second charging signal.