13.11.2013, 11:31 PM
Bezüglich deines Schaltungsvorschlags nehme ich die Formel von hier:
http://www.radio-electronics.com/info/ci...filter.php
Xc = 1/(2 pi f C)
Was mich bei denen allerdings stutzig macht ist die Aussage:
"The simplest circuit high pass filter circuit using an operational amplifier can be achieved by placing a capacitor in series with one of the resistors in the amplifier circuit as shown. The capacitor reactance increases as the frequency falls, and as a result this forms a CR low pass filter providing a roll off of 6 dB per octave."
Sollte da nicht beide Male "high pass" stehen?
http://www.radio-electronics.com/info/ci...filter.php
Xc = 1/(2 pi f C)
Was mich bei denen allerdings stutzig macht ist die Aussage:
"The simplest circuit high pass filter circuit using an operational amplifier can be achieved by placing a capacitor in series with one of the resistors in the amplifier circuit as shown. The capacitor reactance increases as the frequency falls, and as a result this forms a CR low pass filter providing a roll off of 6 dB per octave."
Sollte da nicht beide Male "high pass" stehen?