Power supply circuit, corresponding device and method
US11906994B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 9, 2022 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Jun 9, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/3296
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator is embedded in a circuit intermediate a first node (coupled to a battery) and a second node (supplying power to an external memory). The voltage regulator is activatable in a first mode of operation for startup during which an voltage is applied to the second node that increases towards a supply threshold. In response to the voltage at the second node reaching the supply threshold, the voltage regulator transitions to a second mode of operation where a programmable regulated voltage (higher than the supply threshold) is applied to the second node. In response to receipt of a low-power operation request, a first high-drive regulator circuitry is deactivated and a second low-power regulator circuitry is activated to provide a third mode of operation at low power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.