Host controlled voltage input system for an accessory device
US7532492B2 · kind B2 · utility
70Cited by
38References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2005 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | May 8, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R1/06788
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An accessory device voltage management system includes an accessory device selectively coupled to a host. The host provides a bulk power supply and a low power supply voltage to the accessory device. The host receives accessory device parameters from the device and determines if the accessory device is a valid and supported device and, if so, sends commands to the accessory device to couple the bulk power supply voltage to a power supply circuit in the accessory device. The power supply circuit in the accessory device generates at least a first regulated voltage output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.