| 摘要 |
<P>PROBLEM TO BE SOLVED: To supply a brushless electric motor controller which transmits brushless electric motor phase excitation switching information via a pair of (two) transmission lines. <P>SOLUTION: The brushless electric motor controller includes phase excitation switching signal output substrate side coupling capacitors 3a, 3b and a phase excitation switching signal output substrate side choke coil 4 connected to a power source voltage supply line 6, disposed on a phase excitation switching signal output substrate body 2; and a driver side transformer 5 having a driver side signal winding 5a, and driver side power source windings 5b, 5c connected to the power source voltage supply line 6, disposed on a driver body 1. Thus, serially converted phase excitation switching information SCS is superposed on the pair of (two) power source voltage supply lines 6, and can be transmitted from the phase excitation switching signal output substrate side coupling capacitors 3a, 3b to the driver body 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
