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US 12,748,137 B2Granted
Method for measuring voltage droop in a circuit using a current controlled oscillator
OwnerJoseph Shor, Amir Mizrahi +3inventors
InventorsJoseph Shor, Amir Mizrahi, Gil Golan, Orel Dahaman, Omer Nechushtan
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Abstract
A method for measuring voltage droop and temperature in a circuit include using capacitive coupling to couple a bias voltage of a current controlled oscillator (CCO) to a noisy digital Vcc (VCCD) supply, so that a frequency of the CCO is independent of a DC Vcc level of the noisy VCCD supply and the CCO measures an AC voltage droop of the noisy VCCD supply and a temperature which is dependent upon the AC voltage droop.
Claims9
A method for measuring voltage droop in a circuit comprising:
- using capacitive coupling to couple a bias voltage of a current controlled oscillator (CCO) to a noisy digital Vcc (VCCD) supply, so that a frequency of said CCO is independent of a DC Vcc level of said noisy VCCD supply and said CCO measures an AC voltage droop of said noisy VCCD supply.
Dependencies are inferred from the claim text.