| 摘要 |
<p>PURPOSE:To make manufacture and assembly easy by using a ferrite magnetic material in a transformer which requires the power conversion of an alternating current which has a wide frequency band in a region lower than 10KHz. CONSTITUTION:In a transformer for the power conversion of an alternating current which has a wide frequency band in a region lower than 10KHz, a first frequency converter which converts low frequency A.C. input to high frequency is provided between a wide frequency band A.C. and the transformer in a region lower than 10KHz, e.g., A.C. input to be converted and a second frequency converter which converts high frequency A.C. input to low frequency is connected to the output side of the transformer and a ferrite magnetic material is used for the magnetic core of the transformer. This can efficiently convert the wide frequency band A.C. input in a region lower than 10KHz by using a transformer which uses an easy to manufacture and low cost ferrite magnetic core and in the same way as a transformer which uses a silicon steel plate.</p> |
