Embedded structure circuit for VCO and regulator
US7336138B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 28, 2006 |
| Grant date | Feb 26, 2008 |
| Priority date | — |
| Expiry date | Aug 9, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/0891
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An oscillation circuit formed in a single semiconductor chip, wherein a first source voltage is supplied to a first power supply terminal, a second source voltage different from the first source voltage is supplied to a second power supply terminal, a voltage regulator receives the voltage from the first power supply terminal and outputs a source voltage, a voltage controlled oscillation circuit is supplied with a source voltage from the voltage regulator, a current source circuit is connected to the second power supply terminal, the voltage regulator, the voltage controlled oscillation circuit and the current source circuit are inserted in series between the first and second power supply terminals, and the current supplied to the voltage controlled oscillation circuit from the voltage regulator flows in the current source circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.