搜索 - 科创

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在设计风扇外接PWM调速电路时因为要保持风扇接正电源的接法不变拟采用共阳LED恒流PWM芯片来实现于是把眼光投向类似FP7122 Hi7002 H5118等芯片粗看电路没有什么问题 CS端检测电...

12011463 00DC0465 结果：E506CFDD 13已知：12011464 00DC0465 结果：E201C8DA 14已知：14023017 00DC0465 结果：E506CFDD 根据以上数据求算法

肟基（C=NOH）（之前错写为=NOH，经坛友指出后改正）许多人都比较陌生，但在医药领域和杂环合成方面都比较重要。肟基含有一个羟基，因此和醇一样，有一定酸性。由于氮的电负性较大，因此肟的酸性比醇大不少...

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