[问答]

怎么选择线性稳压器与开关稳压器

在设计有源器件时，有时会出现线性稳压器或开关稳压器是否更适合设计的问题。
了解两者之间的差异可以帮助您为您的应用程序做出正确的选择。
线性稳压器
开关稳压器
设计灵活性
巴克
降压（显示），升压，降压 - 升压
效率
低到中（当Vin和Vout之间的差异很小时）
高
Complexibility
易于设计
设计复杂
波纹＆amp;
噪声
无纹波，低噪音，更好的噪音抑制
中到高，取决于开关频率
如您所见，开关稳压器的主要优势在于其能效，而线性稳压器的主要优势在于其简单，低噪声的操作。
有关更多详细信息，请参阅我们的TechZone文章，了解线性稳压器的优缺点。

以上来自于谷歌翻译

以下为原文

When designing a powered device, the question sometimes arises of whether a Linear Voltage Regulator or a Switching Regulator is more suitable for the design. Understanding the differences between the two can help you make the right choice for your application.

[tr]Linear Voltage RegulatorSwitching Regulator[/tr]

Design Flexibility	Buck	Buck(shown),Boost, Buck-Boost
Efficiency	Low to Medium (when small difference between Vin and Vout)	High
Complexibility	Easy to design	Complex in design
Ripple & Noise	No ripple, low noise, better noise rejection	Medium to high, depends on switching frequency

As you can see, the primary advantage of switching regulators is their energy efficiency, while the primary advantage of linear regulators is their simple, low-noise operation.
For more details, please refer to our TechZone article, Understanding the Advantages and Disadvantages of Linear Regulators.

2018-10-24 09:45:34　　评论 淘帖0 邀请回答举报

时忠晨

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3个回答

答案对人有帮助，有参考价值 0 嗨那个符号Z1是什么？以上来自于谷歌翻译以下为原文 hi what is that symbol Z1?

2018-10-24 13:00:20 评论举报杨秀珍

答案对人有帮助，有参考价值 0 符号本身是Scheme-it中压敏电阻的符号基本上在图中他显示了可变阻抗。这也可以用电位计或可变电阻器显示。以上来自于谷歌翻译以下为原文 The symbol itself is a symbol for a Varistor in Scheme-it Basically in the diagram he is showing a variable impedance. This could also be shown with a potentiometer or variable resistor.

2018-10-24 13:19:21 评论举报刘文明

答案对人有帮助，有参考价值 0 是的，这就是我的想法，但图表看起来更像是分频器而不是调节器。以上来自于谷歌翻译以下为原文 yeah that’s what i thought, but the diagram looks more like a divider than a regulator.

2018-10-24 13:38:24 评论举报杨秀珍