Projects

This is a collection of released projects i did at one point or another


Picosecond Pulser


The Picosecond Pulser , Designed by the late Jim Williams is a handy tool to check rise-time of circuits, perform TDR type tests and an overall handy little gizmo to have.

The base principle is to get a fast bipolar transistor to avalanche. A high voltage supply trickle charges a small capacitor until the avalanche voltage is reached. At this point the transistor goes into controlled breakdown and dumps the accumulated charge into the output. Depending on the transistor used this yields very fast pulses in the order of picoseconds. …


© Vincent Himpe 2016