| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To properly use the transformer for an inverter for a both-sided driving type inverter circuit or the like for cold cathode tube lighting by making a leakage inductance adjustable by a simple mechanism. <P>SOLUTION: The transformer has a bobbin 1 whereto at least a primary winding 10 and a secondary winding 20 are applied, an I-type core 30 inserted movably into an inside cavity 5 of the bobbin 1 and an E-type core 40 fixed to the bobbin 1 to cover at least one surface of the winding. The I-type core 30 and the E-type core 40 are so shaped as to change a leakage inductance as relative positional relation changes, a spring 50 is provided to one end side of the bobbin 1 for locking one end of the I-type core 30, and an eccentric columnar member 60 which moves the I-type core 30 by pressing it from the other end of the I-type core 30 is provided to the other end side of the bobbin 1. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
