System with pluggable adapter card and hot-swap interface controller
US6026458A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1997 |
| Grant date | Feb 15, 2000 |
| Priority date | — |
| Expiry date | Oct 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4081
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hot-swap controller for use in an electrical machine (such as a computer) includes a P-ch MOSFET device operatively coupled to a ramp generator and a sensing error amplifier. A negative feedback loop interconnects the positive terminal of the amplifier with the output terminal of the P-ch MOSFET device and the negative terminal of the amplifier is coupled to the ramp generator. The error voltage generated by the amplifier drives the MOSFET device. The controller allows circuit cards to be inserted and/or removed, "Hot-Plugged", while the machine is operational without causing any deleterious effect on the operation of the machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.