AC line detection and X capacitor discharge using a single terminal
US10170975B1 · kind B1 · utility
9Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2018 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Feb 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/322
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A controller for a switching power converter is provided with a single detection pin through which the controller monitors whether the switching power converter is connected to an AC mains. Should a voltage for the detection pin indicate that the switching power converter is disconnected from the AC mains, the controller asserts the detection pin voltage to trigger a bleeder circuit to discharge an X class capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.