Feedforward amplifier for detecting distortion of an input...

H - Electricity – 03 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H03F 1/00 (2006.01) H03F 1/32 (2006.01)

Patent

CA 2139005

A feedforward amplifier employs four steps to reduce distortion. In the first step, a control circuit detects the frequency of an input signal and the distortion generated by amplification of this input signal, and sets the frequency of a pilot signal output from a variable frequency oscillator to a value other than the input signal frequency and the distortion frequency and close to an average value of the input signal. Thereafter, the control circuit controls a distortiondetecting loop by using the pilot signal in the second step and controls a distortion removing loop in the third step. In the fourth step, the control circuit succeeds the control of the distortion removing loop in a normal state and further controls the distortion detecting loop only when environmental changes have occurred.

L'invention est un amplificateur à correction aval utilisant quatre phases pour réduire la distorsion. Dans la première phase, un circuit de commande détecte la fréquence du signal d'entrée ainsi que la distorsion produite pour l'amplification de ce signal et règle la fréquence d'un signal pilote produit par un oscillateur à fréquence variable à une valeur autre que la fréquence du signal d'entrée et la fréquence de distorsion, mais voisine de la fréquence moyenne du signal d'entrée. Dans la deuxième phase, ce circuit commande une boucle de détection de distorsions en utilisant ce signal pilote et, dans la troisième phase, commande une boucle d'élimination de distorsions. Dans la quatrième phase, il remet la boucle d'élimination de distorsions en mode normal et ne remet la boucle de détection de distorsions en fonction qu'en cas de changement dans l'environnement.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Feedforward amplifier for detecting distortion of an input... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Feedforward amplifier for detecting distortion of an input..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Feedforward amplifier for detecting distortion of an input... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2079234

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.