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Texas Instruments
8 小时
TPS61178:纹波电压大,250mV,如何解决?
电容值和纹波基本计算公式如下:(此电容为有效容值!) 如果计算下来需要的电容很大,可以考虑设计输出电容为CLC滤波,需保证靠近输出的电容容值较大。 增加开关频率也是一种可使用的方法。 至于增加电解电容后频率发生变化了, 先排除是开关频率发生 ...
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