Common low-pass filter circuit b

  
Common low-pass filter circuit commonly used low-pass filter circuit is shown. Figure (a) ~ (c) suppress high-frequency interference; Figure (b) of the varistor foot can absorb
Common low-pass filter circuit b - schematic

lightning surge voltage; Fig. (D) suppress low interference; FIG. (F) for the power supply decoupling. You can choose to use depending on the circumstances.




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