Clock compensation circuit, clock circuit, and microcontroller
US10644684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Jul 11, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K4/502
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Disclosed are a clock compensation circuit, a clock circuit and a microcontroller. The clock compensation circuit may include: a detection circuit, configured to detect a capacitance control parameter capable of affecting a clock frequency output by a clock circuit; and a control unit, connected with the detection circuit, and configured to adjust a capacitance value of a target capacitor in the clock circuit according to the capacitance control parameter detected by the detection circuit, so as to change the clock frequency output by the clock circuit. With the clock compensation circuit, the clock circuit and the microcontroller, the problem of large fluctuation of a clock frequency output by a clock circuit in the related art is solved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.