Power supply isolation circuit and method
US6462434B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Jan 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J1/108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power system has a first power supply operatively connect in parallel to a second power supply. The output of the first power supply is connected to the input of a switching device, such as a mosfet. The output of the switching device is the output of the power system. A measuring device, such as a differential amplifier measures the polarity between the input and output of the switching device. A controller connected to the switching device permits the switching device to conduct current if a first polarity is present between the input and the output. The controller interrupts current flow if a second polarity is present between the input and the output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.