A HIGH-VOLTAGE PULSER CIRCUIT WITH SUBNANOSECOND RISE-TIME

A fast (less-than-or-equal-to 1 ns rise time) high-voltage pulser circuit was developed using 2N5551/2N5550 transistors in avalanche mode as switching elements. This circuit has transistors in series stack configuration and provides approximately 2 kV amplitude and less-than-or-equal-to 1 ns rise time into 50 OMEGA with a 13 ns delay and <500 ps jitter. A simple arrangement to generate two symmetrical opposite polarity pulses from single pulse of either polarity is also presented.