发明名称 Complex inductor and power supply unit
摘要 A complex inductor includes a first magnetic member (1) around which first and third windings (101, 103) are formed, and a second magnetic member (2) around which second and fourth windings (102, 104) are formed. A first inductor (11) is formed by connecting the first winding to the second winding, and a second inductor (21) is formed by connecting the third winding to the fourth winding. The two magnetic members are made of a magnetic material having a magnetic permeability that gradually decreases as its magnetic flux density is increased. When the two windings are interconnected in a direction in which induced voltages generated in these windings by the current flowing in the second inductor weaken each other, the magnetic coupling polarity between the first and second inductors changes according to the current flowing in the inductors. The two inductors are magnetically coupled so that, when one of the two inductors stores energy, the current flowing in the other inductor increases, and when one of the two inductors releases energy, the current flowing in the other inductor decreases.
申请公布号 EP2071596(A2) 申请公布日期 2009.06.17
申请号 EP20080021465 申请日期 2008.12.10
申请人 HITACHI COMPUTER PERIPHERALS CO., LTD. 发明人 SHIMADA, TAKAE;TANIGUCHI, KIMIAKI;SHOJI, HIROYUKI
分类号 H01F27/38;H01F17/04;H01F37/00;H01F38/02;H02M3/335;H02M3/337 主分类号 H01F27/38
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