INDUCTIVE LOAD SWITCHING CONTROL CIRCUIT, SUSCEPTIBLE WITH MONOLITHIC INTEGRATION, INCLUDING A PUSH-PULL FINAL STAGE

摘要

P INDUCTIVE LOAD SWITCHING CONTROL CIRCUIT, MONOLITHICALLY INTEGRATED, INCLUDING A FINAL STAGE WITH PUSH-PULL TRANSISTORS. THE BASE OF EACH TRANSISTOR OF THIS STAGE IS CONNECTED TO A PILOTING COMPONENT AND A POLARIZED SATURATION TRANSISTOR, PILOT TO CONDUCTION IN PHASE OPPOSITION IN RELATION TO THE FINAL TRANSISTOR TO WHICH IT IS CONNECTED. THIS AUXILIARY CETRANSISTOR ACCELERATES THE EXTINCTION OF THE FINAL TRANSISTOR BY EXTRACTING THE BASIC CHARGES THEREOF, WHILE IT DELAYS IGNITION BY ABSORBING ITS SUPPLY CURRENT, OF A DURATION EQUAL TO THAT OF ITS OWN TRANSIENT STATE. 'EXTINCTION; IN THIS WAY, WE CAN AVOID THE SIMULTANEOUS CONDUCTION OF THE TRANSISTORS OF THE FINAL FLOOR DURING THE SWITCHING. /P