Circuit for causing fpll to lock in desired phase

H - Electricity – 03 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H03L 7/08 (2006.01) H03L 7/087 (2006.01)

Patent

CA 2212774

A biphase stable FPLL includes a lock switch, operated in response to a frequency lock condition, that forces a predetermined voltage on the input of the third multiplier to guarantee that the loop locks up in a phase that produces a desired polarity of demodulated signal. A frequency lock indicator operates the lock switch to force the predetermined voltage on the third multiplier irrespective of the actual lock up phase of the loop. If the lock up phase is wrong, the voltage reversal causes the VCO to slip 180° in phase and the loop locks up in its other bistable state.

L'invention est une boucle à asservissement de phase stable biphasée comportant un commutateur de verrouillage qui est actionné en réaction à un verrouillage de fréquence et qui impose une tension prédéterminée à l'entrée du troisième multiplicateur pour offrir l'assurance que l'asservissement se produira dans une phase telle que le signal démodulé aura le signe désiré. Un indicateur de verrouillage de fréquence actionne le commutateur de verrouillage pour imposer la tension prédéterminée au troisième multiplicateur quelle que soit la phase d'asservissement de la boucle. Si cette phase n'est pas la phase appropriée, l'inversion de la tension produit un déphasage de 180° dans l'oscillateur commandé par la tension et l'asservissement se fait dans l'autre état bistable de la boucle.

LandOfFree

Say what you really think

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

Rating

Circuit for causing fpll to lock in desired phase does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit for causing fpll to lock in desired phase, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit for causing fpll to lock in desired phase will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1745707

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