Scanning power source for generating exciting currents similar to triangular waves
An excitation current and triangular wave technology, applied in electrical components, output power conversion devices, AC power input conversion to AC power output and other directions, can solve the problem of load current change, the edge of the accelerator titanium window is easily damaged, etc., to prevent damage. Effect
Inactive Publication Date: 2014-09-10
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology
[0004] The purpose of the present invention is to solve the defects in the prior art that the edge of the titanium window of the accelerator is easily damaged and the load current will change with the change of the load, and provide a scanning power supply for generating a triangular-like excitation current
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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and examples of implementation. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0036] Such as figure 1 As shown, the scanning power supply for generating a triangular-like excitation current of the present invention includes: a power regulator 1 , a DC converter 2 , a waveform generator 3 and a control circuit 4 . Among them, the input terminal of the power voltage stabilizer 1 is connected with the 220V standard AC mains, which is used to convert the energy from the power grid into a stable DC voltage, thus ensuring stable output even when the amplitude of the AC mains is constantly changing. DC voltage; the input terminal of the DC converter 2 is connected t...
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The invention provides a scanning power source for generating exciting currents similar to triangular waves. The scanning power source for generating the exciting currents similar to the triangular waves is connected between an alternating current city power source and a load, and comprises a power voltage stabilizer which converts voltage of the alternating current city power source into direct current steady voltage, a direct current converter which is connected between the power voltage stabilizer and the load and converts the direct current steady voltage into output voltage, a waveform generator which generates signals similar to the triangular waves and a control circuit, wherein a first input end of the control circuit is connected with the waveform generator so as to receive the signals similar to the triangular waves, a second input end of the control circuit is connected with the load so as to receive load currents of the load, and an output end of the control circuit is connected with the direct current converter so as to drive the direct current converter to output the output voltage. The power source for generating the exciting currents similar to the triangular waves can solve the defect that a titanium window edge of an accelerator is easy to damage and the load currents can change along with change of the load in the prior art.
Description
technical field [0001] The invention relates to the technical field of industrial electronic irradiation equipment, in particular to a current-type scanning power supply for generating triangular-like excitation current. Background technique [0002] The application of industrial irradiation accelerators is becoming more and more widespread. Its working principle is to use high-energy electron beams to cause biological effects on substances to effectively kill pests and microorganisms carried by medical and sanitary products and food. The chemical and physical effects produced at the same time are It can be used for material modification, environmental protection and preparation of new materials. The beam cross-section of the electron beam in an industrial irradiation accelerator is on the order of millimeters. In order to ensure that the electron beam can irradiate the irradiated objects uniformly, a bipolar magnetic field should be applied in the two-dimensional direction ...
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IPC IPC(8): H02M5/458
Inventor 李瑞郁亚男黄毛毛胡志敏武万锋
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI