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Active Snubbers Providing Acceleration, Damping, and Error Correction

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
An active snubber operates, in part, to compel switching components, such as switch-mode power supplies and converters, to attain desired values rapidly, albeit temporarily, during which time there is sufficient time for a power supply's internal regulation system to sustain these values independently. The invention can dampen ringing, accelerate response time, and correct erroneous responses of the output of the switching converter. In one embodiment, the active snubber, which is operably connected to the output of a switching component that has a switching or ringing frequency, f.sub.1, and that is modulated by a signal generator at a frequency, f.sub.2, is characterized by an operable connection to the output of a buffer connected to the signal generator. The buffer provides a reference voltage that is equal to the switching component output voltage at the modulation frequency at f.sub.2.
Taubman, Matthew S. (Richland, WA)
12/ 757,587
April 9, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with Government support under Contract DE-AC0576RL01830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.