Input current extraction from inductor current in a voltage converter
US10177644B1 · kind B1 · utility
2Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2017 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Oct 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/0009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage converter includes a high side power transistor coupled to an input voltage node and a low side power transistor coupled to the high side power transistor at a switch node. The switch node is configured to be coupled to an inductor. A slope detector circuit is configured to receive a signal indicative of a current through the inductor. The inductor current is a triangular waveform comprising a ramp-up phase and a ramp-down phase. The slope detector circuit also is configured to generate an output signal encoding when the inductor current is ramping up and when the inductor current is ramping down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.