Three state switch detection using current sensing

H - Electricity – 03 – M

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H03M 5/16 (2006.01) B60R 1/06 (2006.01) B60R 1/07 (2006.01) H01H 9/16 (2006.01)

Patent

CA 2264911

A three state switch detection circuit (60) converts a three state input (46) to a two-bit binary output (50, 52) readable by a micro-controller (40) or other digital logic. The circuit utilized complementary NPN and PNP transistors (Q2, Q1) having coupled emitters and coupled bases connected by a resistor (R5). The collector of the PNP transistor is connected by a resistor (R3) to ground while a complementary resistor (R4) ties the collector of the NPN transistor to VBATT. Additional circuitry preferably converts the voltage output from the collectors to a suitable voltage level readable by the micro- controller or other digital logic device.

L'invention concerne un circuit (60) de détection par commutateur trois états, qui convertit des données d'entrée (46) trois états en données de sortie (50, 52) binaires à deux bits, lisibles par une micro-commande (40) ou toute autre logique numérique. Ledit circuit utilise un transistor NPN (Q2) et un transistor PNP (Q1) complémentaires, ayant des émetteurs couplés et des bases couplées connectées par une résistance (R5). Le collecteur du transistor PNP est connecté par une résistance (R3) à la masse tandis qu'une résistance (R4) complémentaire relie le collecteur du transistor NPN à V¿BATT?. Des circuits supplémentaires convertissent de préférence la sortie de tension venant des collecteurs à un niveau de tension approprié lisible par la micro-commande ou un autre dispositif logique numérique.

LandOfFree

Say what you really think

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

Rating

Three state switch detection using current sensing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Three state switch detection using current sensing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three state switch detection using current sensing will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1781885

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