Digital switching apparatus for driving a load
US7265592B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 2005 |
| Grant date | Sep 4, 2007 |
| Priority date | — |
| Expiry date | Nov 18, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/16
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention refers to a digital apparatus suitable for driving a load. The apparatus an input for receiving a voltage signal varied by an external disturbance and comprises means for sampling at least the external disturbance such as noise, and a driving circuit such as a pulse width modulator for driving the load with a suitable output voltage. The apparatus includes a control circuit suitable for generating digital commands representative of a desired output voltage of the apparatus. The apparatus also comprises digital correction circuit suitable for generating a correction signal on the basis of the difference between the value of the current sample and the value of the previous sample of at least the external disturbance. The output of the driving circuit is governed by the correction signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.