| 摘要 |
PROBLEM TO BE SOLVED: To provide a switching DC/DC converter capable of improving efficiency as a whole device by reducing the core volume and core loss of an electronic component. SOLUTION: The DC/DC converter uses an isolated transformer Tr of a center tap system on a secondary side. An input choke coil L1 and an output choke coil L3 are integrated with the isolated transformer Tr. A common core (magnetic core) is wound with a primary coil (number of turns 2N) and a secondary coil (number of turns n+n) of a transformer as well as the input choke coil L1 (number of turns 2N) and the output coil L3 (number of turns n). The DC magnetic flux generated with each coil is so oriented as to cancel each other, resulting in very small amount of DC biased magnetization of the core. COPYRIGHT: (C)2005,JPO&NCIPI
|
