Time-delay adjustable double-pulse fast-rise-time impulse current generation apparatus and method
A technology of inrush current and generating device, applied in the direction of electric pulse generator circuit, energy storage element to generate pulse, etc., can solve the problems of current front and delay that cannot be accurately controlled, achieve compact structure, accurately control delay time, reduce The effect of manufacturing difficulty and cost
Active Publication Date: 2017-04-05
NORTHWEST INST OF NUCLEAR TECH +1
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Problems solved by technology
[0003] In order to solve the technical problem that the current front and delay between the pre-pulse and the main pulse cannot be accurately controlled, the present invention provides a delay-adjustable double-pulse fast front surge current generation device and method
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[0030] The invention provides a method and device for generating a double pulse fast front high amplitude short pulse high current with adjustable delay time. See figure 1 with figure 2 The device structure of the preferred embodiment of the present invention includes a pre-pulse current source 1, an inner box 22, a main pulse current source 2, and an outer box 23 arranged in an axial shape from the inside to the outside in sequence. The inner box 22 and the outer box 23 are coaxially arranged cylindrical boxes, the pre-pulse current source 1 is located inside the inner box 22, and the main pulse current source 2 is evenly arranged between the inner box 22 and the outer box 23 Inside the cavity. The delay time between the main pulse current source 2 and the pre-pulse current source 1 is controlled by a dual group of multiple output fast leading edge triggers 18. A flat middle high voltage electrode 8 is arranged between the top plate 3 of the outer box body and the top plate ...
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The invention relates to a time-delay adjustable double-pulse fast-rise-time impulse current generation apparatus and method. The time-delay adjustable double-pulse fast-rise-time impulse current generation apparatus comprises a pre-pulse current source, an inner box body, a main pulse current source, and an outer box body arranged in sequence from the inside to the outside, and the delay time between the main pulse current source and the pre-pulse current source is controlled by a double-group multichannel output fast-rise-time trigger. According to the apparatus and method, an axis-shaped structure is integrally employed, and the pre-pulse current source, the inner box body, the main pulse current source and the outer box body are arranged in sequence from the inside to the outside; the structure is compact, the size is small, the manufacturing difficult and cost of the double-pulse high-current generation apparatus can be greatly reduced, the occupation area of the apparatus is reduced, and the apparatus is applicable to promotion and application; besides, the delay time between the main pulse current source and the pre-pulse current source is set through the double-group multichannel output fast-rise-time trigger so that the delay time can be accurately controlled.
Description
Technical field [0001] The invention relates to a device and a method for generating a time-delay adjustable double-pulse fast front impulse current. Background technique [0002] The Z-pinch generated by the pulsed high current through the metal wire array has a wide range of needs in nuclear weapons physics, X-ray radiation effects, inertial confinement fusion, and fusion energy. For example, the US ZR device (26MA), the Chinese Academy of Engineering Physics "Julongyi Number” (8MA) and so on. In recent years, research conducted by Imperial College London on the MAGPIE device has shown that the metal wire array first passes through a pre-pulse current of tens of nanoseconds (a wire diameter of several microns, a length of about 2cm, and a single wire current of about 1kA). A symmetrical and uniform thin layer of cylindrical metal gas is formed, delayed for a certain time (tens to hundreds of ns), and then passed through the MA class pulse high current with a leading edge of 10...
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IPC IPC(8): H02M9/00
CPCH03K3/53
Inventor 孙凤举邱爱慈李兴文吴坚梁天学姜晓峰王志国
Owner NORTHWEST INST OF NUCLEAR TECH