Viasat, Inc.
Adaptive voltage scaling circuitry

Abstract:

A circuit may include a first voltage regulator to supply a main circuit and a second voltage regulator to supply a test circuit. The test circuit may produce a test signal having a characteristic dependent on the second regulated supply voltage. A controller may adjust second voltage regulator to a threshold level to induce a change in the characteristic of the test signal. The controller may adjust the first voltage regulator based on the threshold level of the second regulated supply voltage.