| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve reliability by eliminating a slip ring and a brush. <P>SOLUTION: Power is taken out of a secondary winding without the slip ring and the brush by installing: a rectifier 31 that rectifies AC outputs from the secondary windings 27, 28 and 29; a switching element 33; and a rotary transformer 39 having a primary coil 36 and a secondary coil 38. <P>COPYRIGHT: (C)2007,JPO&INPIT |
