Title:
SWITCHING POWER SUPPLY CIRCUIT
Document Type and Number:
Japanese Patent JP2006158163
Kind Code:
A
Abstract:
To provide a switching power supply circuit capable of stably operating regardless of the current state of a secondary winding to improve efficiency.
In the switching power supply circuit, a primary semiconductor switch 4 and a secondary semiconductor switch 6 are respectively provided with a closing delay circuit to reduce the loss of a transformer and the loss of secondary rectification, with improved conversion efficiency from 84 to 89%.
Inventors:
ABE NOBORU
Application Number:
JP2004370172A
Publication Date:
June 15, 2006
Filing Date:
November 25, 2004
Export Citation:
Assignee:
ABE NOBORU
International Classes:
H02M3/28