Corona discharge apparatus
US5317155A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Dec 29, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01T19/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power amplifier for use in medical and veterinary testing and therapy. A tunable pulse-width-modulated signal generator is connected to a gating element to provide a digital waveform suitable for comprehensive control of the waveform shape and average output power provided by the apparatus. The digital waveform controls a power driver. Through use of a high-Q resonant circuit including a capacitor and a primary winding of a coil assembly, a voltage of about 150-400 volts is increased to about 10 kilovolts at the primary winding. The coil assembly has a secondary:primary turns ratio of 10:1, resulting in a signal of about 100 kilovolts at the output of the secondary winding. This arrangement produces a corona discharge at a discharge pin connected to the secondary winding. A manual tuning embodiment and a self-tuning embodiment are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.