Waveform generator for driving electromechanical device
US8659208B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2012 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Aug 9, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B2201/76
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrical waveform generator for driving an electromechanical load includes a digital signal processor connected to a waveform generator component in turn connected to an amplifier section with a filter network, the latter being connected to sensing and conditioning circuit componentry that is in turn connected to analog-to-digital converter circuitry. A digital memory stores digitized voltage and current waveform information. The processor determines a phase difference between voltage and current waveforms, compares the determined phase difference to a phase difference command and generates a phase error or correction signal. The processor also generates an amplitude error signal for inducing the amplifier section to change its output amplitude to result in a predetermined amplitude error level for a respective one of the voltage and current waveforms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.