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252020-12

你知道有源蜂鸣器和无源蜂鸣器的区别吗

我们都晓得有源蜂鸣器和无源蜂鸣器都属于蜂鸣器的一种类型，广泛的应用及计算机、打印机、报警器、定时器等等电子产品中作为发声器件，有源和无源蜂鸣器仅有一字之差，但是却是不同的两种类型，那么如何去分辨他们两个呢?1.外形不同将两种蜂鸣器的引脚向上防止，如果又看到绿色的电路板，即是无源蜂鸣器，如果没有电路板、使用黑胶关闭的即是有源蜂鸣器。2.测试...
292020-12

你知道有源蜂鸣器出现杂音的原因

最近有客户向小编咨询在应用有源蜂鸣器的时候会出现少许杂音，这种情况应该如何处分?我们先要找到问题的源头对症下药，就能非常快的解决，下面宁波帆倍利小编就为大家带来有源蜂鸣器出现杂音的原因：一、有源蜂鸣器本身质量不好主要是来内各种情况，一个是蜂鸣器中有异物或者是膜片发生了异位，有异物主要是在组装蜂鸣器或者产线加工的时候，有铁粉、铁屑在蜂鸣器的...
案例中心 / Case

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基本文件流程错误 SQL 调试

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