Network communication power supply with digital signal isolation
US11588510B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2020 |
| Grant date | Feb 21, 2023 |
| Priority date | — |
| Expiry date | Jun 15, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/335
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A network communication power supply with digital signal isolation includes a transformer, a transformer drive circuit, a rectifier, and a modulation signal duty cycle detection circuit. The transformer has a primary side and a secondary side. The transformer drive circuit is coupled to the primary side, and receives a digital signal input. The transformer drive circuit converts the digital signal input into a drive signal with a duty cycle corresponding to a logic level of the digital signal input according to the logic level. The digital signal input includes a power content. The rectifier is coupled to the secondary side and converts the power content to provide a power source. The modulation signal duty cycle detection circuit is coupled to the rectifier and supplied power by the power source, and provides a digital signal output with a high or low level according to the duty cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.