Patent ID: 9264033
Filing Date: 2016-02-16
CPC Classification: H02M,H03K

Claim Text:
1. A method of operating a voltage regulator having a plurality of switches and an inherent delay time period T_Td in switching one or more of the plurality of switches, said method comprising: providing a hysteresis parameter V_hyst to a hysteresis comparator, the hysteresis parameter V_hyst being a function of a voltage output Vout of the voltage regulator, a voltage input Vin of the voltage regulator, and a signal that drives one of the plurality of switches; and canceling out variances in a switching time period T for the voltage regulator caused by the inherent delay time period T_Td by driving the plurality of switches based on the hysteresis parameter V_hyst, wherein a hysteresis time period T_hyst is derived by the driving of the plurality of switches based on the hysteresis parameter V_hyst, and wherein the hysteresis time period T_hyst cancels out the variances in the switching time period T caused by the inherent delay time period T_Td.