LED light bulb with the power switch to achieve stepless dimming
fecha:2011-06-07 14:46
estado:para resolver
pregunta:admin
output ripple, usually requires a larger output of electrolytic capacitors (220uF). Secondary structure has the advantage of the output ripple is small, so you can remove the large electrolytic output capacitors, and replaced by smaller-capacity ceramic capacitors or film capacitors. However, the efficiency of the secondary structure at the expense of the general overall efficiency can be above 80%, while a structure is usually more than 90% can be achieved. In addition, the secondary structure
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