High-voltage large-capacity mixed tantalum capacitor bank integrated module

Abstract

The invention provides a high-voltage large-capacity mixed tantalum capacitor bank integrated module. The module comprises 32 100V470-microfarad axial mixed tantalum electrolytic capacitors, 4 high-precision voltage dividing resistors, a high-performance ceramic bypass capacitor, a positive electrode lead circuit board and a negative electrode lead circuit board, and high-temperature insulation resin is overall adopted to be poured and sealed into a high-strength light aluminum magnesium alloy shell, the 32 tantalum electrolytic capacitors are divided into four groups, 8 tantalum electrolytic capacitors in each group are connected in parallel, and four groups are connected in series. The high-precision voltage dividing resistors are connected in parallel beside the capacitors connected in series in all the groups respectively. The bypass capacitor of the whole module is a 104K / 630V high-voltage ceramic capacitor. The module has extremely low leakage currents (smaller than 300microA), the impedance frequency character is good, an ESR value can be kept stable in the range of 10KHZ-1000KHZ, using temperature ranges from -55DEG C to 125DEG C, and the requirements of a modern aviation and spaceflight electronic system for high frequency, miniaturization and high reliability can be met.

Description

Technical field: [0001] The invention discloses a high-voltage and large-capacity hybrid tantalum capacitor bank module. Background technique: [0002] Generally speaking, the capacitor bank pulse discharge device is very simple in structure, but it has a wide range of uses. At present, it is mainly used in controlled thermonuclear fusion, plasma pinch, plasma focus, pulsed strong magnetic field, electromagnetic propulsion, electric explosion conductor, electromagnetic forming, electromagnetic shock simulation, liquid electric explosion, aircraft deicing, etc. [0003] In recent years, with the multipolar development of the world's military structure, long-range and ultra-long-range precision guidance and prevention and control are required in aerospace and defense systems, so the energy density that its power supply system can provide is getting higher and higher. requirements. For example, the U.S. Department of Energy, Lockheed Martin, NASA, Raytheon, Rockwell, etc., th...

AI Technical Summary

Problems solved by technology

However, the charge storage area of ​​traditional electrolytic capacitors is a planar structure, and the electrodes are separated by a medium. These mediums are mostly made of plastic, paper or thin film ceramics. Density requirements

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