The function of high power and high voltage power supply is to establish the energy conversion interface between strong electric field and high energy particle flow. The core feature of high power and high voltage power supply is the ability of electromagnetic topology to break through the dielectric breakdown threshold, and realize the dimensional conversion of electric energy form through multi-stage resonant network. The synergy of solid-state switching devices and pulse transformers enables the system to maintain the steepness of voltage waveform during transient process.
The structural design of high power and high voltage power supply follows the principle of charge stacking, and generates continuous high voltage pulses through the sequential charging and discharging of capacitor array. The phase change cooling mechanism of thermal management system balances the contradictory relationship between the junction temperature of power device and the aging rate of insulating material. The dynamic adjustment capability of voltage feedback loop can compensate the energy loss caused by load impedance change and ensure the rigid characteristics of output characteristics. For application scenarios that need to maintain the plasma ionization energy level, the power supply needs to have overvoltage clamping function with nanosecond response.
The secondary electron emission effect in the energy conversion process requires the construction of equipotential shielding system inside high power and high voltage power supply to prevent voltage collapse caused by the capacitor below. The bipolar output architecture offsets common-mode interference through magnetic coupling, providing a pure potential reference for precision measurement equipment. In the field of long-distance energy transmission, the wave impedance matching design of high power and high voltage power supply can suppress the energy re-injection caused by transmission line reflection. For conditions where the transient power demand exceeds the steady-state capacity, the peak current capability of this type of power supply can achieve power redistribution in the time dimension through distributed energy storage modules.
Dielectric barrier discharge applications rely on high power and high voltage power supply to generate alternating polarization electric fields, and their frequency tuning range needs to cover the dielectric relaxation time constant. The impedance transformation network of the high-power RF source reduces the standing wave ratio through conjugate matching and improves the electromagnetic energy radiation efficiency.
