Compensation circuit and inverter stage for oscillator circuit
US9461584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2014 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0038
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit includes an oscillator circuit to receive a bias current and generate an oscillating signal at an output node. A current differencing circuit subtracts a current at the output node from a reference current to generate a first current. In addition, a current mirroring circuit mirrors the first current to generate the bias current. An inverter stage is coupled to the output node, and includes an input branch configured to receive the oscillating signal and generate first and second control signals based upon the oscillating signal. At least one amplifying branch receives the first and second control signals and amplifies the first and second control signals. An output branch receives the amplified first and second control signals and generates an amplified version of the oscillating signal based upon the amplified first and second control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.