Method of driving a capacitive load and drive circuit therefor
US9079396B2 · kind B2 · utility
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3References
19Claims
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Key dates
| Filing date | Aug 28, 2012 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Aug 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for driving a capacitive load using a target voltage waveform having a peak voltage and an average rise and fall slew rate, wherein the average rise and fall slew rates comprise at least one voltage step, the method comprising supplying power from an input to an output for charging a capacitive load to obtain a peak voltage and average rise slew rate in response to the target waveform; discharging the capacitive load to obtain an average fall slew rate in response to the target waveform, and returning the discharged power from the capacitive load to the input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.