Conveners
10.1/10.2 Converters, Components,Magnetics, Swiches and Capacitors
- Argenis Bilbao (Texas Tech University)
Presentation materials
Cockcroft-Walton (CW) multipliers are common and simple DC high voltage sources; however, almost all literature on CW design assumes an ideal AC current source drives the multiplier. Our work on piezoelectric transformer driven CW multipliers for use in compact x-ray sources prompted a study of CW operation with limited supply current. Limiting the AC source current supplying a CW has been...
ABSTRACT: This paper determines the waveform parameters of metal oxide varistor (MOV) test platform according to the IEC standards and the waveform characteristics of very fast transient overvoltage (VFTO) measured in gas-insulated metal-enclosed switchgear (GIS). The standard lightning impulse test circuit with 8 us wave-head time, the steep wave impulse test circuit with 100ns wave-head time...
Silicon carbide (SiC) power semiconductor devices are experiencing an increasingly widespread adoption in many power electronics and pulsed power applications such as high-power DC-DC converters and inverters, battery chargers, industrial motor drives, as well as high-power solid-state pulse generators such as a Marx generator or a linear transformer driver (LTD). The wide-bandgap (WBG) and...
Metglas Inc. has a long history and large experience base in manufacturing Pulse Power Cores with amorphous metals for industrial and research applications. There are a wide variety of alloys for use as core materials which enables designs based on flux swing, core loss and rise/switching time requirements. The change in flux density can vary from 1.1 – 3.4 T depending on alloy selection. ...
Ultracapacitors are of increasing interest in the high voltage community due to their ability to source high transient power while also offering a modest energy density. A market study of commercially available ultracapacitors finds several different models available with slightly different internal resistance, energy density, and power density parameters, among others. Hybrid ultracapacitor...
With the prospect of wide-bandgap (WBG) devices such as SiC (silicon carbide) taking the forefront to replace Si (silicon) in commercial applications, analysis must be done on surge current and avalanche energy reliability to verify the viability of replacing Si with SiC in terms of long-term reliability. Properties of SiC theoretically show superior thermal conductivity, and higher breakdown...
