Controlling a current drawn from an adapter by a computer system
US9134775B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2012 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Aug 15, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The disclosed embodiments provide an apparatus that controls a current drawn from an adapter by a computer system. During operation, the apparatus senses the current drawn from the adapter using a first current sensor and a second current sensor, wherein a response time of the first current sensor is faster than a response time of the second current sensor. Then, when the current sensed using the first current sensor exceeds a predetermined high-current threshold, the apparatus limits the current drawn from the adapter to a first predetermined current limit. Additionally, when the current sensed using the second current sensor exceeds a predetermined thermal-limit current, the apparatus limits the current drawn from the adapter to the predetermined thermal-limit current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.