Search Results - lizhi+zhu

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A Start-up Circuit and Control for Isolated Boost DC/DC Converters
This invention is to overcome the start-up surge current problem of isolated boost converters. In boost converters, the output voltage must be higher than the input voltage. However, the initial output voltage normally starts from zero, and a surge current will occur that can easily damage the entire converter. The invention functions like a flyback...
Published: 8/6/2012   |   Inventor(s): Lizhi Zhu, Fred Lee, Jih-Sheng (Jason) Lai
Keywords(s): Electronics, Environment/Fuel Cell
Category(s): Electrical
An Accelerated Commutation for Passive-Clamped Isolated Boost Converters
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...
Published: 8/6/2012   |   Inventor(s): Lizhi Zhu, Fred Lee, Jih-Sheng (Jason) Lai
Keywords(s): Electronics
Category(s): Electrical