A novel chopping current protection circuit for intrinsically safe power supply
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摘要: 针对传统截流型保护电路截流值小、抗负载冲击能力差、过流故障解除后需增加恢复电路或手动电路等问题,设计了一种用于本质安全电源的新型截流型保护电路。该电路采用双重并联控制结构,提高了电路可靠性;在负载过流时能够迅速截流,故障解除后可快速投入,且投入点可调节;具有微功耗电路,降低了轻载或空载时的电源损耗。实验结果表明,该电路能够在过流故障解除后自动恢复,负载效应低,带载能力较强。Abstract: For problems that traditional chopping current protection circuit had small cut-off current value and poor anti load impact ability, and needed additional recovery circuit or manual circuit after over-current fault, a novel chopping current protection circuit for intrinsically safe power supply was designed. The circuit adopts double parallel control structure, so as to improve reliability. The circuit can chop circuit rapidly under condition of load over flowing, and put into operation fast after fault with adjusted input point. Meanwhile, the circuit has low power consumption part, so as to reduce power loss under condition of light load or no-load. The experimental results show that the circuit can recover automatically after over-current fault with low load effect and strong load capacity.
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期刊类型引用(2)
1. 赵晟,赵旭亮,孟小文,赵欣,申化波. 煤矿综采工作面本质安全型组合开关控制与仿真研究. 电子设计工程. 2024(24): 138-142 . 百度学术
2. 周坪,马国庆,周公博,马天兵,李远博. 智能化带式输送机健康监测技术研究综述. 仪器仪表学报. 2023(12): 1-21 . 百度学术
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