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装修卧室背景墙射灯好还是筒灯好

浏览：35次 | 提问时间： 07-03 04:14

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1个答案

浅沫 07-03 04:15

何种转换方式 通过线性稳压器来转换电压会面临功耗问题，这种方式比较适合用于需要回避噪声(比如汽车音响)因而不能采用开关方式的转换电路中。而开关方式的特点是转换效率非常高，但它也有噪声的问题，所以选择何种转换方式取决于何种应用。 卧室里的灯装什么样的，卧室里适合放什么颜色的灯泡通常，电荷泵驱动方式的效率会随着输入电压的变化而变化，在电压变化范围大的应用中，其效率比较低;而在电压变化范围比较小的应用中，只有当输入和输出电压之餐厅选择什么灯最好，餐厅一般选什么样的灯间是整倍数关系时，它的效率才能达到最大，但这在电池供电的实际应用中很难达到。反观电感的转换效率不太受电压干扰，应用限制也比电荷泵要少，所以目前转换电路多采用电感方式。 客观说，评价 hb led 驱动ic性能要根据不同应用来看，不能一概而论。比如装饰灯具应用中对rgb颜色变化的控制要求高，这一性能就成为主要指标，而在单色应用中并不要求这个。又如狭小空间的应用要求的是热散能力;汽车照明替代应用中既要求与原有的电路系统平滑结合的性能同时也要求高可靠性;在nb之类的显示应用中，对多串led亮度均衡的控制要求驱动ic对每一支路上的电流有精确的控制，如maxim的产品控制室外建筑一般用什么样的射灯，手工制作餐厅灯精度可以达到3%;投影仪的应用则要求高效率的驱动电路，快速调整亮度的能力以及热保护能力;在替代应用中，性能更多的是体现在整个方案而不是单个驱动ic上的。总的看，器件的集成度、控制数射灯用筒灯好还是led灯好，射灯有多少种量、响应速度、故障诊断、耐热等都是性能的评价参考。

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