Nanosecond pulse generator with a protector circuit
US8120207B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2010 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Feb 9, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12M35/02
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
This invention relates to a pulse generator circuit for delivering a short high current pulse to a load. This pulse generator comprises a junction recovery diode, a switch, a first resonant circuit and a second resonant circuit. The diode may be configured to store charges in its depletion layer when there is a forward flow of a current and to rapidly switch open after the depletion layer is discharged by a reverse flow of a current. After the diode rapidly switch opens, the pulse generator may provide a reverse current to the load. This pulse generator may be configured to generate at least one pulse that is having a length of no more than 100 nanoseconds at the full-width-at-half-maximum and an amplitude of at least 1 kilovolt. Electrodes may be connected to the pulse generator to deliver one pulse or plurality of pulses to biological cells such as tumor cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.