Milliohm-level dummy load used for high power supply system and design method thereof

Abstract

The invention discloses a milliohm-level dummy load used for a high power supply system and a design method thereof. The dummy load includes an outer layer metal pipe 1, an inner layer metal pipe 2, ametal upper disc 3, a metal lower disc 4, terminal threaded holes 5, wiring socket threaded holes 6 and a rectangular hole 8; the height of the inner layer metal pipe 2 is greater than that of the outer layer metal pipe 1; the inner layer metal pipe 2 is coaxially put into the outer layer metal pipe 1; the bottoms of the two metal pipes are coaxially welded on the metal lower disc 4; the top of the inner layer metal pipe 2 are welded on the metal upper disc 3; the terminal threaded holes 5 are located in the pipe wall of the outer layer metal pipe 1; the wiring socket threaded holes 6 are located in the metal upper disc 3; and the rectangular hole 8 is located in the pipe wall of the inner layer metal pipe 2, and the height of the rectangular hole is greater than that of the outer layer metal pipe 1. Through the dummy load which is formed through the coaxial welding of the inner and outer metal pipes, skin effects can be avoided; and the dummy load is fast in heat dissipation, compactin structure, small in volume, laborsaving and time-saving in manufacturing and small in dummy load resistance and can reach a milliohm level.

Description

technical field [0001] The invention relates to the technical field of high-power power supply systems, in particular to a milliohm level dummy load and a design method for high-power power supply systems. Background technique [0002] At present, high-power power supply systems are more and more widely used, such as high-current power synthesis circuits, laser weapon power supplies, electromagnetic launch power supplies, and pulse power supply systems, with energy ranging from 1MJ to tens of MJ, or even greater. During the debugging and testing process of these high-power power supply systems, a device that can not only adjust the current waveform in the power supply system but also absorb 70% of the total energy of the power circuit, the parameters of this device must also meet the needs of the circuit parameters. For this reason, a dummy load is proposed, which reduces the loss when the system fails, and at the same time reduces the cost and system volume. [0003] Paten...

AI Technical Summary

Problems solved by technology

Although single-layer reverse winding is used, the inductance of this dummy load is still very large, which will cause mutual inductance to other devices around the circuit, affecting the parameters of the entire power circuit, and it is time-consuming and laborious to manufacture.

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