Abstract
The requirement of output current of very high slew rate has presented a great challenge to the design of voltage regulator modules that deliver power to computer CPUs such as the Pentium Pro. Methods for enhancing transient speed have been evolved around the reduction of effective inductance of the switching regulator through interleaving and paralleling converters. This paper introduces the concept of phantom for achieving very fast and tight output voltage regulation for any switching converter. Essentially a special load corrector circuit is attached to the output of the switching regulator. This load corrector combines with the actual load (e.g., CPU chip) to form a slowly varying composite load or phantom which permits the switching regulator to maintain a well regulated output voltage even when the actual load is changing very rapidly. This paper discusses the conceptual construction of the load corrector and its practical implementations. Experimental tests (based on available IC and discrete components) for a 20 A step load showing an output voltage fluctuation of less than /spl plusmn/30 mV are presented.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
