Dear basofiassection LC filter 1 pole?
Best Wisheshow to cater for the output voltage in the design of the low pass filter.
Yes.I think 2 pole filter is equal to socond order filter....
That is a second order filter. It should be enough.The idea is make low pass filter with ressonable type elements one inductor and one capacitor only....
I think 4KHz is too high. 1 KHz would be better, or maybe even 500Hz. The filter cutoff frequency must be low enough to give good attenuation at 8KHz.My High frequency PWM is arround 8kHz, and I understand, that my fc can be higher than 50Hz, but why 4kHz?
When you have an inductor and a capacitor , you have a 2nd order filter . and when you have 3 imaginary elements , it means that you have three pole , and it will be 3rd order .I wrote 1 pole in all the filters, except in the last one, because I think that these filters only have one order and one pole!
The number of poles will select the order of each filter .Not exists relantionship of these two parameters??? Number of poles and order number?
Dear babatundeawei meant that how do we factor in the values of the coils of the inductor in other to be able to handle the required voltage say like 230v ac.
i really not understand for choosing the L and C value
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