LED light bulb with the power switch to achieve stepless dimming
fecha:2011-06-07 14:46
estado:para resolver
pregunta:admin
iver power supply. Guoqing Quan said: If achieved by the secondary structure (such as isolated flyback buck PFC stage + grade), in the first stage uses the PSR controller OZ8021, OZ9992, or in the second stage is used OZ9995, then the output of electrolytic capacitors can also replaced by ceramic capacitors.
Of course, this is not absolute. Guoqing Quan said, the use of Boost PFC + Flyback isolated two-level structure of the program, Boost level output capacitor can be relatively small, but t
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