Identifying a current drawn by a load
AssigneeMarvell International Ltd.
InventorsHubertus Notohamiprodjo, Radu Pitigoi-Aron
Life of this patent
Estimating the term…
Abstract
A system includes, in at least one aspect, a first circuit configured to be coupled to a load, and a second circuit configured to perform operations including receiving a digital voltage signal representing a voltage supplied to a first circuit, identifying a first time stamp associated with a voltage value representing an extrema in the digital voltage signal, receiving a digital current signal representing a current drawn by the load in response to the supplied voltage, identifying a second time stamp associated with the digital current signal, the second time stamp being within a threshold time of the first time stamp, and identifying a current value associated with the second time stamp as the current drawn by the load.
Claims8
A system comprising:
- a first circuit configured to be coupled to a lamp;
- and
- a second circuit operatively coupled to the first circuit, the second circuit configured to perform operations comprising:
- receiving a digital voltage signal representing a voltage supplied to the first circuit;
- identifying a first time stamp associated with a voltage value representing an extrema in the digital voltage signal;
- receiving a digital current signal, the digital current signal representing a current drawn by the lamp in response to the supplied voltage, wherein receiving the digital current signal comprises receiving the digital current signal after receiving the digital voltage signal;
- identifying a second time stamp associated with the digital current signal, the second time stamp being within a threshold time of the first time stamp;
- and
- identifying a current value associated with the second time stamp as the current drawn by the lamp.
Dependencies are inferred from the claim text.