| 摘要 |
PURPOSE:To improve the bypass efficiency of electromagnetic noise and to miniaturize an apparatus by providing an inverter with multistage-cascading choke coils at the shortest distance and also with shunt capacitors. CONSTITUTION:A circuit element in an inverter 104 being a source of generation of electromagnetic noise and multistage-cascading choke coils 109, 110 being line filters are connected together at the shortest distance. The electromagnetic noise of respective conductors 105, 106 is effectively bypassed between respective conductors 105, 106 by respective shunt capacitors 107, 108 and the remaining component is hindered by normal choke coils 109, 110. Because the inverter 104 and line filters 109, 110 are housed as an integral body in the same case 101, it is possible to decrease an exclusive space. Also, it is possible to decrease inductive interference and radio interference from the conductors 105, 106 to the surrounding space. |
