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Auxiliary quasi-resonant dc tank electrical power converter

Patent ·
OSTI ID:1175961
An auxiliary quasi-resonant dc tank (AQRDCT) power converter with fast current charging, voltage balancing (or charging), and voltage clamping circuits is provided for achieving soft-switched power conversion. The present invention is an improvement of the invention taught in U.S. Pat. No. 6,111,770, herein incorporated by reference. The present invention provides faster current charging to the resonant inductor, thus minimizing delay time of the pulse width modulation (PWM) due to the soft-switching process. The new AQRDCT converter includes three tank capacitors or power supplies to achieve the faster current charging and minimize the soft-switching time delay. The new AQRDCT converter further includes a voltage balancing circuit to charge and discharge the three tank capacitors so that additional isolated power supplies from the utility line are not needed. A voltage clamping circuit is also included for clamping voltage surge due to the reverse recovery of diodes.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-00OR22725
Assignee:
UT-Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
7,126,833
Application Number:
11/173,341
OSTI ID:
1175961
Country of Publication:
United States
Language:
English

References (1)

An auxiliary quasi-resonant tank soft-switching inverter
  • Peng, F. Z.; Adams, D. J.
  • World Congress on Industrial Applications of Electrical Energy and 35th IEEE-IAS Annual Meeting, Conference Record of the 2000 IEEE Industry Applications Conference. Thirty-Fifth IAS Annual Meeting and World Conference on Industrial Applications of Electrical Energy (Cat. No.00CH37129) https://doi.org/10.1109/IAS.2000.883159
conference January 2000

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Related Subjects

30 DIRECT ENERGY CONVERSION