Crystal oscillator and startup method for a crystal oscillator
US11245362B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2021 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Jun 8, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0094
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A crystal oscillator and a startup method for initiating operation of a crystal oscillator with a crystal resonator including a first terminal and a second terminal, an electronic oscillator circuit connected to the crystal resonator, a first capacitor including first and second terminals, the second connected to the first terminal of the crystal resonator, a second capacitor including first and second terminals, the second connected to the second terminal of the crystal resonator. A switch includes first, second and third terminals, wherein an electrical conductivity between the first terminal and the second terminal of the switch is controllable by a voltage at the third terminal, wherein the first terminal of the switch is connected to the first terminal of the first capacitor and wherein the second terminal of the switch is connected to the first terminal of the second capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.