| In this paper, according as the technical parameters of autonomous power supply in full digital gun , the Boost DC-DC converter and digital control of the full digital DC power supply is described , and the Soft switching is also discussed. Some key technology is mentioned ,and a series of effective solutions are also gived.First, on the base of theory analysis and computer simulation, this paper uses interleaved two-transistor forward circuit to realize the main circuit of Boost DC-DC converter, and also presents the structure, the principle and the design . The method is proved to be effective by simulation.And then, this paper studies digital control of the Boost DC-DC converter based on ADMC331 . The control circuit uses DSP as the core of system, applies PWM technology, and implements designs of the hardware, software, driver, and protection circuit. Finally we test this system and make the load experiment. Experiment indicates that the project can be implemented simply, increase reliability and improve wave. It is useful attempt for studies of digital.intelligent autonomous DC power supply in full digital gun.At the end of this paper, on the base of Hard switching the in the Boost DC-DC converter, softswitching technology is proposed and discussed. The active-clamp network is used to clamp the voltage across power switches, and to achieve zero-voltage-turn-on of the power switchs, etc. Detailed analysis and simulation of the converter are performed, from which some important results are obtained. |
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