Jan 28, 2010 #1 A anit_y Newbie level 6 Joined Jul 18, 2009 Messages 12 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,351 hello everyone................ i want schematic diagram of low pass filter for a band of 50hz to 500hz. i am going to use it in subwoofer amplifier at the input side. waiting for reply
hello everyone................ i want schematic diagram of low pass filter for a band of 50hz to 500hz. i am going to use it in subwoofer amplifier at the input side. waiting for reply
Jan 28, 2010 #2 Audioguru Advanced Member level 7 Joined Jan 19, 2008 Messages 9,461 Helped 2,152 Reputation 4,304 Reaction score 2,008 Trophy points 1,393 Location Toronto area of Canada Activity points 59,757 A second-order lowpass active filter can use a dual pot to adjust its cutoff from 50Hz to 500Hz.
Jan 29, 2010 #3 A adinogcas Junior Member level 1 Joined Jan 28, 2010 Messages 17 Helped 1 Reputation 2 Reaction score 0 Trophy points 1,281 Activity points 1,424 You can download FILTERPRO from TI to design the circuit. You can download from the attachment or visit TI website. **broken link removed**
You can download FILTERPRO from TI to design the circuit. You can download from the attachment or visit TI website. **broken link removed**
Jan 29, 2010 #4 Audioguru Advanced Member level 7 Joined Jan 19, 2008 Messages 9,461 Helped 2,152 Reputation 4,304 Reaction score 2,008 Trophy points 1,393 Location Toronto area of Canada Activity points 59,757 I have never seen Filter- Pro program make a simple but good Sallen and Key second-order filter with two RC values the same or wirh one resistor or capacitor simply double the value of the other one.
I have never seen Filter- Pro program make a simple but good Sallen and Key second-order filter with two RC values the same or wirh one resistor or capacitor simply double the value of the other one.
Jan 30, 2010 #5 A anit_y Newbie level 6 Joined Jul 18, 2009 Messages 12 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,351 thanks Audioguru for u r reply. actually i am weak in hardware, will u able to post detail circuit diagram of second order low pass filter. waiting for u r reply..............
thanks Audioguru for u r reply. actually i am weak in hardware, will u able to post detail circuit diagram of second order low pass filter. waiting for u r reply..............
Jan 30, 2010 #6 Audioguru Advanced Member level 7 Joined Jan 19, 2008 Messages 9,461 Helped 2,152 Reputation 4,304 Reaction score 2,008 Trophy points 1,393 Location Toronto area of Canada Activity points 59,757 Here is a lowpass filter with a Butterworth flat response then a cutoff at 102Hz.