Design and development of high voltage 10ns rep-rate pulsar

Rep-rate pulse generator has been developed for biomedical application, to trigger spark gap in high voltage applications etc, using avalanche mode operation of transistors and blumlein pulse forming line. The output voltage is up to 1.7kV, with rise time as fast as ~4 nanoseconds and FWHM of 10 nanoseconds, having repetition rate of ~4.5 kHz. We have developed this pulsar to observe the biological cell viability and morphological changes in biological cells at achieved voltage, pulse duration and frequency. System is working reliably with above parameter. Unit is discussed in detail.