One novel remote sensing method for on-board voltage regulator in computing system

Abstract

Differential remote sensing has been popularly used in voltage regulator to ensure a high regulation accuracy requirement for processor supply voltage. One new remote sensing method by using normal VR controller is proposed in this paper to achieve similar high regulation accuracy as that by using true differential remote sensing method for output voltage. Advantages of it are analyzed in detail and design considerations are also analyzed as well. Finally, test is conducted for normal VR controllers to verify it's one effective way to achieve good output voltage regulation accuracy for VRs.