PFM power management system with autonomous mode switching
US10423174B1 · kind B1 · utility
5Cited by
6References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 23, 2018 |
| Grant date | Sep 24, 2019 |
| Priority date | — |
| Expiry date | Apr 23, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pulse frequency modulated (PFM) voltage converter autonomously switches between buck, buck-boost, and boost modes as a function of the input and output voltages. The voltage converter may also switch autonomously between buck mode and a low drop out (LDO) mode when configured in a system in which the battery voltage is known to always be higher than the output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.