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An Accelerated Commutation for Passive-Clamped Isolated Boost Converters
Case ID:
99.019
Web Published:
8/6/2012
The invention is to use a special control method to accelerate transformer current transfer from one-side to the other side. In a bi-directional dc/dc converter, one side of the transformer can be current-fed or primary side and the other side can be voltage fed or secondary side. The primary side normally experiences a high voltage overshoot during the diagonal switch-pair turn-off condition. This voltage spike needs to be clamped to avoid the need of high switch voltage rating. The invented control method can reduce the clamping energy, thus reducing the voltage spike.
Patent Information:
App Type
Country
Serial No.
Patent No.
File Date
Issued Date
Patent Status
US Utility
*United States
09/865,099
6,452,815
5/24/2001
9/17/2002
Issued
US Continuation
*United States
10/118,659
6,876,556
4/8/2002
4/5/2005
Issued
Category(s):
Electrical
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For Information, Contact:
Li Chen
Licensing Associate
Virginia Tech Intellectual Properties, Inc.
(540) 443-9217
lchen@vtip.org
Inventors:
Lizhi Zhu
Fred Lee
Jih-Sheng (Jason) Lai
Keywords:
Electronics