Fault detection on a dual supply system for a universal serial bus system
US6000042A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Aug 25, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/221
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for a dual power supply on a universal serial bus system using an overcurrent detect circuit. Dual power supplies in the universal serial bus system allows for greater flexibility of operation and is based on two separate power systems. The first power system is achieved using the power line on the bus connecting to the universal serial bus controller. The second power system is a separate power supply to power the downstream ports. Moreover, the universal serial bus system has an overcurrent and thermal error detect circuit based on the power system in order to achieve an efficient and cost effective method and apparatus in which to notify the universal serial bus controller of any error in the power system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.