Proactively operational over-voltage protection circuit
US9735566B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2016 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Dec 12, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods are disclosed for providing over-voltage protection for power converters. An over-voltage protection loop includes an error amplifier that maintains an external reference voltage within a highly precise range that can be used to provide a highly precise output voltage from the over-voltage protection loop. The over-voltage protection loop may also include feedback impedance that delays the output of the over-voltage protection loop. The delay may prevent the over-voltage protection loop from being engaged due to voltage transients output from a main servo loop circuit that provides a nominal output voltage under normal operation, thus allowing the threshold voltage and output voltage of the over-voltage protection loop to be set close to the nominal output voltage of the main servo loop circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.