Key features of this waveform are the voltage boost period following each polarity transition and fast current rise time due to that boost. Ideally, the boost voltage would be adjustable. It is expected that adjusting the boost voltage will enable some tuning of the film properties, since it will effectively allow tuning of ion energy within the process. Additionally, adjustable duty, the ratio...

Clustered voltage scaling scheme is an effective method of power consumption reduction without performance degradation. One of the main issues in this scheme is performance and power penalties due to insertion of level converting flip-flops at the interface from low-supply to high supply clusters to simultaneously perform latching and level converting functions. A new level converting flip-flop...

This paper presents a piezoelectric energy harvesting system demonstrating the output power enhancement when using a CMOS integrated pulsed-resonance converter (PRC) instead of a simple Schottky diode bridge rectifier. The combination of a storage capacitor, a blinking light emitting diode (LED) and a voltage detector forms a fixed voltage regulator and visualizes the output power extracted out...

The development of rf systems capable of producing high peak power (hundreds of megawatts) at relatively short pulse lengths (0.1-5 microseconds) is currently being driven mainly by the requirements of future high energy linear colliders, although there may be applications to industrial, medical and research linacs as well. The production of high peak power rf typically involves four basic elem...

The diameter and branching structure of positive streamers in ambient air are investigated with a fast iCCD camera. We use different pulsed power circuits and find that they generate different spatial streamer structures. The electrodes have a point-plane geometry and a distance of 40 or 80 mm, and the peak voltages over the discharge gap are up to 60 kV. Depending on circuit and peak voltage, ...

The self-excitation process in pulsed air-core rotating generators is fundamental in assuring record values of power density and compactness. This paper will analyze the conditions for the self-excitation process in pulsed electrical machines used as power supplies for electromagnetic launchers, using the analogy and methods of the positive feedback in control systems. In the classical “ferroma...