audio graphic equalizer circuit


Posted on Feb 7, 2014

A gyrator is a circuit using active devices and transistors to simulate an inductor. In this case the gyrator is the transistor acting with R1, R3 and C2. It could just as easily be a unity gain op-amp (which gives superior performance). The circuit includes three formulae: one which gives f, the centre frequency of the band. The second shows how


audio graphic equalizer circuit
Click here to download the full size of the above Circuit.

the Q is related to the capacitor ratio. The third shows the impedance presented by the circuit. Note that this includes 3 terms, the first purely resistive, the second is the capacitive contribution from C1 and the third is an inductive term from the gyrator.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Headphone Amplifier
10Db-gain-amplifier
Ssb Generators
2 GHz CMOS Voltage-Controlled Oscillator with Optimal Design of Phase Noise and Power Dissipation
a voltage-controlled current sink / voltage-controlled resistor
Amplifier Schematic
picaxe 18X repeater controller
Electronic siren circuit
LA1800 portable am fm radio circuit design electronic project
8 Channel software controlled fanbus with PWM
Bass-treble tone control circuit



Top