PULSE MODULATORS USING TRANSISTORS AND SWITCHING REACTORS
Brian Cooper, W.J. Payten · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1959
A regenerative circuit is described which uses a power transistor to control the charging of a pulseforming network through a transformer having a sharply saturating core. The transformer is designed to saturate upon completion of the charging interval, whereupon the stored energy is switched to a load in the form of a steep-fronted pulse. The peak pulse power can be much higher than the peak transistor power, and the pulse rise time is limited only by the core properties and not by the transistor turn-on' time. One or more additional transfer stages may also be used to compress the pulse duration and increase its peak power still further. (auth)