Power control method for microcontroller unit and power control system using the same
US12405656B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2024 |
| Grant date | Sep 2, 2025 |
| Priority date | — |
| Expiry date | May 18, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a power control method for a microcontroller unit (MCU) and a power control system using the same. The power control method includes after a triggering event of switching CPU frequency occurs, controlling, through a power controller, a low dropout linear regulator (LDO) to output a preset voltage and triggering a clock controller to switch a first central processing unit (CPU) frequency; after the clock controller switches the first CPU frequency, counting, through a clock counter, a number of times of occurrence of a CPU clock within a period to obtain a second CPU frequency; and determining, through the power controller, a corresponding voltage of the second CPU frequency and controlling the LDO to output the corresponding voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.