Relaxation oscillator and method
US11165415B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 27, 2020 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Apr 27, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K3/354
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A relaxation oscillator and a method of controlling the relaxation oscillator are disclosed. The relaxation oscillator includes a reference voltage generating circuit configured to generate a reference voltage based on a transistor-based resistor, a variable voltage generating circuit configured to generate a variable voltage based on the reference voltage and a control switch, a threshold voltage generating circuit configured to generate a threshold voltage using a switched-capacitor resistor circuit, and a switch control circuit configured to output a control signal to control the control switch based on the variable voltage and the threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.