Switched capacitor banks
US10461696B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Dec 18, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2201/0266
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An LC tank circuit, such as an LC tank circuit of a step-tuned voltage controlled oscillator, includes a plurality of switched capacitor banks and one or more inductors. A first switched capacitor bank switch in response to a range of control signals used to control the VCO output across a range of frequencies. A second switched capacitor bank can switch in response to a subset of the range of control signals used to control the VCO output across a subset of the range of frequencies. The control scheme for the first and second switched capacitor banks can improves the linearity of changes in the frequency of the output signal of the VCO.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.