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In order to enhance the reservoir permeability and conductivity of oil reservoir and to improve the production of oil and gas by using the high-energy arc fracturing device, a high frequency high voltage sparker with a stored energy of 40kJ was developed. The sparker is mainly composed of a high voltage high frequency charging supply, energy storage capacitors, a discharging electrodes and a safety...
Transient thermal design is a key technology in miniaturization of switching power supply with intermittent operating mode or frequent overload condition. Based on capacitor charging power supply the transient thermal design technology was researched and the goal was to achieve the miniaturization of capacitor charging power supply. In the paper the losses of main heating devices were calculated and...
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