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How to remove 200 mV ripple from my power supply? [closed]
I am using a step-down-converter to get a variable supply output in the range of 2-4 V from a 5 V input voltage from an adapter.
The problem I am facing is that I get a 200 mV ripple which looks like ...
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How to protect constant LED current from ripples & clamps?
I need to develope a constant current LED Driver. The product must be portable and as small as possible. So I can not use SMPS, I have use AC/DC adapter as source. This is the AC/DC adapters output:
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