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This paper presents a new rad-hard quad power switch with fuse-like load shedding characteristics, offering shorter load shedding times for higher currents and slower times near the load rating current. This i2t characteristic corresponds to a fixed amount of dissipated energy, which is ideal for protecting the switch element. We explain its implementation in silicon and management of switch protection. Test results for regular and radiation environments are provided, along with application examples such as a fault-tolerant redundant switch.

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A Rad-Hard Quad Power Switch with Fuse-Like Fault Shedding Characteristic

  • 会议论文

  • 发表日期：

    2026年

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  • Sorin Spanoche

摘要

This paper presents a new rad-hard quad power switch with fuse-like load shedding characteristics, offering shorter load shedding times for higher currents and slower times near the load rating current. This i2t characteristic corresponds to a fixed amount of dissipated energy, which is ideal for protecting the switch element. We explain its implementation in silicon and management of switch protection. Test results for regular and radiation environments are provided, along with application examples such as a fault-tolerant redundant switch.