The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2018
Filed:
Apr. 11, 2016
Drexel University, Philadelphia, PA (US);
Ioannis Savidis, Wallingford, PA (US);
Divya Pathak, Philadelphia, PA (US);
Drexel University, Philadelphia, PA (US);
Abstract
A circuit that detects the power supply voltage requirement of each voltage domain in an IC includes 1) a ring oscillator in each voltage domain, and 2) a power module. Two different circuit implementations of the power module may provide a precise reference voltage to on-chip voltage regulators (LDO or DC-DC switching buck converter). The power module supports DVFS and can provide the desired power supply voltage for advanced CMOS technology nodes (45 nm and beyond) in less than 100 ns. The voltage detection circuit clamps the voltage to the desired level to address power supply voltage variations due to PVT and ageing. The proposed technique has minimal power and area overhead to compensate for the power supply voltage variation, thus reducing power supply voltage margins which yields higher power saving.