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US 2019/0056353 A1Published application
Hybrid method to synthesize voltage waveforms with non-harmonic profiles
AssigneesWichita State University, Gordon A. Anderson Custom Engineering
InventorsAlexandre A. Shvartsburg, Gordon A. Anderson
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Abstract
Method and apparatus for generating asymmetric high-voltage waveforms with near-rectangular profiles. The method comprises producing selected low-frequency components of the Fourier series for a rectangular waveform explicitly and adding them to the amplified residual of lower-amplitude near-rectangular waveform upon filtering out certain frequencies.
Claims20
A method to synthesize a desired voltage waveform of other than a harmonic profile, the method comprising the steps of:
- i. generating an initial voltage waveform of said profile at a lower amplitude than a desired final amplitude;
- ii. substantially depleting a finite number of lower-frequency components of a Fourier series of said initial waveform in (i) to yield a depleted waveform;
- iii. amplifying the depleted waveform produced in (ii) to an amplitude wherein non-depleted components have magnitudes approximately equal to the amplitude of the desired voltage waveform;
- iv. generating said finite number of lower-frequency components as individual harmonics with amplitudes approximately matching those in the desired voltage waveform;
- and
- v. superposing all the waveforms obtained in (iii) and (iv).
3 more elements
Dependencies are inferred from the claim text.