Energy source isolation and protection circuit for an electronic device
US8102154B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2008 |
| Grant date | Jan 24, 2012 |
| Priority date | — |
| Expiry date | Jul 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An energy source isolation and protection circuit is provided for an electronic device, such as a patient-worn or patient-carried medical device. The isolation and protection circuit includes a supply voltage rail, a reference voltage rail, an electrical load coupled across the supply voltage rail and the reference voltage rail, and an energy source for supplying a voltage to the electrical load via the supply voltage rail and the reference voltage rail. The isolation and protection circuit also includes a voltage-controlled switch architecture that is configured to detach and electrically isolate the energy source from the electrical load (and from itself) in response to the voltage of the energy source falling below a threshold voltage. The voltage-controlled switch architecture is also designed to maintain the energy source in the detached and electrically isolated state in the absence of operating voltage provided by the energy source to the voltage-controlled switch architecture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.