Active noise cancelling power supply
US10496154B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Aug 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/062
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An active noise cancelling power supply to perform active noise cancelling of input power with noise to output power. The active noise cancelling power supply having a power transformation device receiving input power and converting the power to a voltage signal with a ripple. The active noise cancelling power supply has a ripple measuring device, which measures the ripple as the voltage signal with a ripple passes through the ripple measuring device producing a ripple signal. A controller with a data storage in communication with a processor, wherein computer instructions in the data storage are configured to instruct the processor to produce a first noise cancellation signal in volts or millivolts out of phase with the ripple signal and inject the first noise cancellation signal on the voltage signal with a ripple at a node forming a clean signal as output power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.