A Start-up Circuit and Control for Isolated Boost DC/DC Converters

Description:

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 converter so that the surge current will not occur. After the output voltage is established, the converter will change its control function and return to boost converter operation.

Patent Information:

Title	App Type	Country	Serial No.	Patent No.	File Date	Issued Date	Expire Date	Patent Status
Start-up Circuit and Control for High Power Isolated Boost DC/DC Converters	US Utility	*United States	09/866,304	6,587,356	5/24/2001	7/1/2003	5/24/2021	Issued