Jan 24, 2017 #1 Q qingcong Newbie level 4 Joined Aug 11, 2010 Messages 6 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,335 Hi, This is a bit of a basic circuit question. I want to take the parallel circuit below and combine it into a single RC branch also seen below. to Is this possible? Thanks.
Hi, This is a bit of a basic circuit question. I want to take the parallel circuit below and combine it into a single RC branch also seen below. to Is this possible? Thanks.
Jan 24, 2017 #2 KlausST Advanced Member level 7 Joined Apr 17, 2014 Messages 25,279 Helped 4,874 Reputation 9,769 Reaction score 5,569 Trophy points 1,393 Activity points 169,237 Hi, Yes. But without values: impossible. What solution do you want? More mathematical or more by drawing vectors? I recommend to use a step in between: R and C n parallel. Klaus
Hi, Yes. But without values: impossible. What solution do you want? More mathematical or more by drawing vectors? I recommend to use a step in between: R and C n parallel. Klaus
Jan 24, 2017 #3 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,486 Helped 14,756 Reputation 29,794 Reaction score 14,121 Trophy points 1,393 Location Bochum, Germany Activity points 298,370 An equivalent circuit is possible only for a single frequency. The impedance will be different for any other frequency. Don't know if this is what you want.
An equivalent circuit is possible only for a single frequency. The impedance will be different for any other frequency. Don't know if this is what you want.
Jan 25, 2017 #4 B BradtheRad Super Moderator Staff member Joined Apr 1, 2011 Messages 15,205 Helped 2,901 Reputation 5,814 Reaction score 2,985 Trophy points 1,393 Location Minneapolis, Minnesota, USA Activity points 113,942 The rolloff curve changes slope at some point. It resembles an RIAA equalization circuit. A search turned up schematics such as this diagram: 'phono stage riaa eq network'.
The rolloff curve changes slope at some point. It resembles an RIAA equalization circuit. A search turned up schematics such as this diagram: 'phono stage riaa eq network'.
Jan 25, 2017 #5 S sac1991 Member level 2 Joined Jan 21, 2017 Messages 52 Helped 7 Reputation 14 Reaction score 7 Trophy points 8 Activity points 409 Write the equivalent impedance of original circuit at a frequency omega(w) z1=r1-j1/(c1*w) z2=-j/(c2*w) zeq=(z1*z2)/(z1+z2)=P-jQ req=P ceq=1/(Q*w) req and ceq are function of frequency. So better to use original circuit as low pass filter.
Write the equivalent impedance of original circuit at a frequency omega(w) z1=r1-j1/(c1*w) z2=-j/(c2*w) zeq=(z1*z2)/(z1+z2)=P-jQ req=P ceq=1/(Q*w) req and ceq are function of frequency. So better to use original circuit as low pass filter.