Coconut EMC整改案例分析与实践

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资源摘要信息:"参考资料-AN-0 Coconut EMC整改案例.zip" 知识点: 1. EMC基础知识:EMC(电磁兼容性)是电子和电气设备在电磁环境中能够正常工作,同时不对该环境产生不可接受的电磁干扰的性能。这涉及到电子设备发射的电磁能量不应该干扰其他设备的正常工作,同时也要求设备能够承受一定强度的外部电磁干扰而不出现性能下降。 2. EMC整改的必要性:在电子产品设计和生产过程中,EMC问题经常会出现。这些问题如果处理不当,可能导致产品无法通过相关认证,影响产品的上市时间,或者在使用过程中因为电磁干扰导致设备不稳定甚至损坏。因此,对EMC问题进行整改是非常必要的。 3. 案例分析方法:该整改案例将以“AN-0 Coconut EMC整改案例”为研究对象,分析Coconut品牌的电子设备在EMC测试中遇到的问题,以及如何通过具体的技术措施进行改进和优化。 4. 整改案例分析:案例中将详细描述Coconut品牌设备在EMC测试中的具体表现,包括测试结果、发现的问题和整改前后的对比数据。可能包含的问题有辐射发射超标、传导发射超标、静电放电(ESD)、射频干扰(RFI)、电磁脉冲(EMP)、浪涌(Surge)等。 5. 整改技术和方法:案例分析将涉及具体的整改技术和方法,例如增加滤波器、屏蔽、接地技术、线路布线优化、布局调整、元件替换等。这些技术的应用将有助于降低设备产生的电磁干扰或提高设备对电磁干扰的抵抗能力。 6. 整改效果评估:通过对整改前后的测试数据进行对比,可以评估整改措施的有效性。这包括对整改后设备的辐射发射、传导发射、抗扰度等指标的测试结果,以及这些结果如何满足相关的国际和地区标准(如FCC、CE、CISPR、IEC等)。 7. 实际应用和推广:案例中可能会提到整改措施在实际生产线上的应用情况,以及如何将这些经验应用到其他类似产品的设计和生产中去,从而提升整个品牌或公司的产品质量和市场竞争力。 8. 未来展望:在案例的结尾,可能会对EMC领域的未来发展趋势进行预测,以及对电子产品设计和测试提出新的挑战和建议。 通过以上知识点的介绍,可以为读者提供一个全面的EMC整改案例分析框架,有助于理解电子设备在电磁兼容性方面的需求,以及在设计和生产过程中如何进行有效的EMC整改。

解决这个问题King Julien rules the Madagascar island whose primary crop is coconuts. If the price of coconuts is P , then King Julien’s subjects will demand D(P ) = 1200 − 100P coconuts per week for their own use. The number of coconuts that will be supplied per week by the island’s coconut growers is S(p) = 100P. (a) (2 pts) Calculate the equilibrium price and quantity for coconuts. (b) (2 pts) One day, King Julien decided to tax his subjects in order to collect coconuts for the Royal Larder. The king required that every subject who consumed a coconut would have to pay a coconut to the king as a tax. Thus, if a subject wanted 5 coconuts for himself, he would have to purchase 10 coconuts and give 5 to the king. When the price that is received by the sellers is pS, how much does it cost one of the king’s subjects to get an extra coconut for himself? (c) (3 pts) When the price paid to suppliers is pS, how many coconuts will the king’s subjects demand for their own consumption (as a function of pS)? 2 (d) (2 pts) Under the above coconut tax policy, determine the total number of coconuts demanded per week by King Julien and his subjects as a function of pS. (e) (3 pts) Calculate the equilibrium value of pS, the equilibrium total number of coconuts produced, and the equilibrium total number of coconuts consumed by Julien’s subjects. (f) (5 pts) King Julien’s subjects resented paying the extra coconuts to the king, and whispers of revolution spread through the palace. Worried by the hostile atmosphere, the king changed the coconut tax. Now, the shopkeepers who sold the coconuts would be responsible for paying the tax. For every coconut sold to a consumer, the shopkeeper would have to pay one coconut to the king. For this new policy, calculate the number of coconuts being sold to the consumers, the value per coconuts that the shopkeepers got after paying their tax to the king, and the price payed by the consumers.

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