Electrical power system for a self-contained transportable life support system
US6230710A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Apr 2, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/23
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A switching control circuit for use in an electrical power system for a transportable life support system is disclosed. The switching control circuit provides uninterrupted power to a load of medical and utility devices by switching between one of a set of converted external power voltages and an internal power voltage outputted by a rechargeable internal power source. The power switching is effected within the time interval during which a residual voltage still remains on line due to capacitance discharge of the corresponding power converter and capacitance discharge of the main bus, resulting in uninterrupted electrical power to the load. The switching control circuit comprises: (a) an input power select circuit for outputting a voltage selected from the group of internal and converted external power voltages; (b) a bus switch, which receives the selected voltage, for controlling the application of the selected voltage to the load; and (c) a main bus for transporting the selected voltage to the load of medical and utility devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.