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Line FIlter Design : AC mains

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saumya_85

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I need to design a filter circuit for the below points :

I need to avoid any signal or noise for the below two frequency range 60 ~ 90KHz and 110 ~ 135 KHz ( or 150 KHZ)


AC mains : 90~300V AC / 2A

Could anybody help me out for the same or may suggest how to design the filter circuits ...
 

FvM

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A filter has finite stop band suppression. Instead of saying "avoid any signal", you need to define an attenuation.

The filter will be usually a LC low pass filter. For an exact design, the load impedance should be known.
 

darla1

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I need to design a filter circuit for the below points :

I need to avoid any signal or noise for the below two frequency range 60 ~ 90KHz and 110 ~ 135 KHz ( or 150 KHZ)


AC mains : 90~300V AC / 2A

Could anybody help me out for the same or may suggest how to design the filter circuits ...

yes

please decide the following b4 design

1. Power level of your converter

2. Choose best possible capacitor(Y type b/w line to ground and neutral to ground

3. Choose the crossover frequency

then

Find

1/root(LC)=wn

wn=2*pi*f

then find geta=Lwn/2RL (RL is load resistance)

thanks
 

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