Hi,
Been working on precision rectifier circuit to rectify a sine wave +-4V generated using an Arduino & corresponding circuits (to represent an Hall Effect Current Sensor). The problem with the circuit below is that i am getting a full wave rectified signal but unequal amplitudes for diff half cycles. I did a simulation with LTSpice and it gave me the signal i wanted. Perhaps its the component i am using or?
Op-Amp : TL072CN -> +-12V supply
Diode: 1N5817
Resistors: 1% Tolerance (don't think its precision resistors?)
R1 = 2 47kohm (in series)
R2 - R5 = 100 kohm
Circuit from (http://sound.westhost.com/appnotes/an001.htm)
Will post a picture of circuit i soldered when i get back.
Any help would be greatly appreciated.
Been working on precision rectifier circuit to rectify a sine wave +-4V generated using an Arduino & corresponding circuits (to represent an Hall Effect Current Sensor). The problem with the circuit below is that i am getting a full wave rectified signal but unequal amplitudes for diff half cycles. I did a simulation with LTSpice and it gave me the signal i wanted. Perhaps its the component i am using or?
Op-Amp : TL072CN -> +-12V supply
Diode: 1N5817
Resistors: 1% Tolerance (don't think its precision resistors?)
R1 = 2 47kohm (in series)
R2 - R5 = 100 kohm
Circuit from (http://sound.westhost.com/appnotes/an001.htm)
Will post a picture of circuit i soldered when i get back.
Any help would be greatly appreciated.