在电源供电系统中,浪涌的产生会对电子元器件造成不可逆的损害。电源开断瞬息产生的强力尖峰脉冲会对集成电路进行浪涌冲击。本文就浪涌电压冲击对电路造成的损害,通过理论和实验分析了TVS实际选型问题,并对比分析了TVS电路和电容电路...在电源供电系统中,浪涌的产生会对电子元器件造成不可逆的损害。电源开断瞬息产生的强力尖峰脉冲会对集成电路进行浪涌冲击。本文就浪涌电压冲击对电路造成的损害,通过理论和实验分析了TVS实际选型问题,并对比分析了TVS电路和电容电路对浪涌冲击带来的失效问题的抑制能力,在此基础上提出了基于TVS和电容的浪涌保护电路方案。In the power supply system, the generation of surge will cause irreversible damage to electronic components. The strong spike pulse produced by the instant of power supply disconnection will cause surge impact to the integrated circuit. In this paper, based on the damage caused by surge voltage shock to the circuit, the actual TVS selection problem is analyzed through theory and experiment, and the suppression ability of TVS and capacitor circuit to the failure problem caused by surge shock is compared and analyzed. On this basis, the surge protection circuit scheme based on TVS and capacitor is proposed.展开更多
提出了一种新的Anytime分类算法,anytime averaged probabilistic under mutual information estimators(AAPMIE)。该分类算法能较好地适用于需要即时响应的在线业务。从信息论的角度认为每个属性所携带的信息量是不同的,对其他属性影...提出了一种新的Anytime分类算法,anytime averaged probabilistic under mutual information estimators(AAPMIE)。该分类算法能较好地适用于需要即时响应的在线业务。从信息论的角度认为每个属性所携带的信息量是不同的,对其他属性影响较大的属性应该具有较高的权限被优先选择作为super-parent参加分类计算,这样,有助于提高分类开始阶段的分类准确率,有助于在较少的计算资源下返回更好的分类效率。实验验证了该算法能在anytime分类的早期较好的改善分类效果降低分类的0-1损失错误率,伴随计算资源的增加,算法能进一步得到更好的分类准确率。展开更多
文摘在电源供电系统中,浪涌的产生会对电子元器件造成不可逆的损害。电源开断瞬息产生的强力尖峰脉冲会对集成电路进行浪涌冲击。本文就浪涌电压冲击对电路造成的损害,通过理论和实验分析了TVS实际选型问题,并对比分析了TVS电路和电容电路对浪涌冲击带来的失效问题的抑制能力,在此基础上提出了基于TVS和电容的浪涌保护电路方案。In the power supply system, the generation of surge will cause irreversible damage to electronic components. The strong spike pulse produced by the instant of power supply disconnection will cause surge impact to the integrated circuit. In this paper, based on the damage caused by surge voltage shock to the circuit, the actual TVS selection problem is analyzed through theory and experiment, and the suppression ability of TVS and capacitor circuit to the failure problem caused by surge shock is compared and analyzed. On this basis, the surge protection circuit scheme based on TVS and capacitor is proposed.
文摘提出了一种新的Anytime分类算法,anytime averaged probabilistic under mutual information estimators(AAPMIE)。该分类算法能较好地适用于需要即时响应的在线业务。从信息论的角度认为每个属性所携带的信息量是不同的,对其他属性影响较大的属性应该具有较高的权限被优先选择作为super-parent参加分类计算,这样,有助于提高分类开始阶段的分类准确率,有助于在较少的计算资源下返回更好的分类效率。实验验证了该算法能在anytime分类的早期较好的改善分类效果降低分类的0-1损失错误率,伴随计算资源的增加,算法能进一步得到更好的分类准确率。
