Bilateral Measurements in Electrical Circuits with Gas-discharge Devices

Streamers in Gas Discharge Devices

Streamers are ionization waves in gas discharge devices, modelled here as travelling wave solutions of a drift-diiusion model for the transport of electrons and ions. The existence of a certain type of small amplitude streamers is proved by applying results from the theory of singularly perturbed ordinary diierential equations. Global information is obtained from a large activation energy analy...

Detection of electrical tree propagation by partial discharge measurements

The partial discharge activity during propagation of electrical treeing in epoxy resin is described. The electrical trees grew in needle-plane samples without and with an internal barrier up to the final breakdown. The simultaneous taken tree growth and discharge activity show a correlation between the propagation state of the tree and the thereby measured PD. Especially the changes in the tree...

Low Capacitance Electrical Probe for Nanoscale Devices and Circuits

An electrical probe is constructed of a small capacitor in contact with the circuit node under test so as not to load this circuit node and cause distortion of the input signal. The small capacitor is then placed in series with the small input resistance of a terminated coaxial signal line. The voltage signal at the output of the coaxial line will be approximately the product of the small capac...

[Electrical safety devices for protection against gas poisoning].

Advances in Semiconductor Devices and Their Growing Use in Electrical Circuits and Systems

The main aim of this investigation is to assess the suitability of modern power semiconductor devices for pulse power applications. Pulse power system involves the storage of energy, which is released in form of high power pulse to the load by means of a switching device. Hence the basic components of pulse power system are an energy storage element, a switch, and a load circuit. The energy sto...