Isolated power converter and associated switching power supply
US9444353B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2015 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Mar 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/32
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In one embodiment, an isolated power converter can include: (i) a transformer having a primary winding and a secondary winding; (ii) a secondary rectifier circuit coupled to the secondary winding; (iii) a power switch coupled between an input voltage source and a first terminal of the primary winding, where a second terminal of the primary winding is coupled to ground; (iv) a feedback circuit coupled between the first and second terminals of the primary winding, the feedback circuit being configured to generate a feedback voltage based on a voltage across the primary winding; (v) a control circuit configured to generate a control signal to control the power switch; and (vi) an over voltage protection circuit configured to activate a reset signal when the voltage feedback signal is greater than a threshold value, where the reset signal is configured to reset the control signal when activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.