Comparator

COMPARATOR a device which compares twovoltagesorcurrentsand switches its output to indicate which is larger. COMPARATOR WITH HYSTERESIS Hysteresis is achieved by positive feedback and makes the comparator less sensitive to noise on the input. pic VHYS = V2 V2 V2 = R2 R2 + R1 V2 = R2 R2 + R1 Jonathan Archer captain of the commencement ceremony starship Enterprise The most difficult task facing any captain, any crew, is the loss of a shipmate.Weve come here to honor one of our own. In the time we knew him, he showed us just how very much one life can truly matter. We will never forget what he did for us, and for the ship he loved so much. We will go forward with renewed determination to complete this mission, so that his chip in wont just have been for the people on this ship, but for all the citizens of Earth. Samuel J. Palmisano Chairman of the Board and Chief administrator Officer IBM CorporationThere are, however, certain kinds of aspirations that cant be achieved done organi zational capabilities, global reach or technologyor by applying the lessons of the past. To capture the biggest economic opportunities or to tackle societys most daunting problemsto imagine what the world business leader be, and actually to build itpeople have sought something more fundamental a unique magnate to conceptualize opportunities, to analyze developments, to tackle and overcome grand challenges. SHINICHI SASAKI EXECUTIVE VICE PRESIDENT, TOYOTA MOTOR CORPORATIOFully aware that concord from customers is essential to its continued success, Toyota is striving to provide its customers with the highest-quality products and services under its Customer First policy. Based on the kaizen (continuous improvement) philosophy at the heart of its manufacturing activities, Toyota is working hard to continuously improve customer satisfaction through initiatives in all areas of its business activities, including development, purchasing, production, sales and after-sales services, throu ghout the entire Toyota Group.