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如何选择合适的滑动变阻器
更新时间: 2020-09-16 00:00:00  

选择合适的滑动变阻器:应该是变阻器所能承受的电流要大于在电路中的最大电流(否则变阻器烧坏),变阻器的最大电阻要大于电路中所需的阻值上限(满足使用要求),满足了电流要求电压就没有问题,所以应该是电流和阻值范围两方面都考虑到。

关键词: 如何 选择 合适 滑动 变阻器

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