In this article, to solve the problems about obsolescence of parts and unable to driving turret when internal components are failure, the DC-DC boost converter in the gun/turret drive system of mobile weapon was improved. The power converting circuit in converter is changed by applying the latest components, and the control circuit is changed from analog to digital. Also, the power converting circuits were modularized in three parallel so that it could be driven even when some components failed. The improved DC-DC boost converter secured stability such as converting to voltage in a linear manner in the entire section from the start of boosting to the end. Also, through the modular configuration, turret driving system can operates when some components failed.

Abstract
1. 서 론
2. 본 론
    2.1 설계 개선 방향
    2.2 직류전원승압기 설계 개선
    2.3 개선안 입증
3. 결 론
References

• 김세영(Defense Agency for Technology and Quality) | Seyoung Kim Corresponding author
• 김현민(Defense Agency for Technology and Quality) | Hyunmin Kim
• 김윤곤(Defense Agency for Technology and Quality) | Yungon Kim
• 강한길(Hyndai Rotem) | Hangil Kang