Droop protection method and circuit

Abstract

The present techniques relate to mitigating droop conditions over state transitions in systems having dynamic voltage and frequency scaling and there is disclosed a method of controlling a dynamic voltage and frequency scaling circuit, comprising: initiating a transition from a first voltage and frequency state to a second voltage and frequency state; switching activity from a first nominal source to a first fallback source; retuning the first nominal source to become a second fallback source at the second voltage and frequency state; switching activity from the first fallback source to the second fallback source; retuning the first fallback source to become a second nominal source at the second voltage and frequency state; and switching activity from the second fallback source to the second nominal source.

Dependencies are inferred from the claim text.