| 摘要 |
PURPOSE:To simplify the interrupt processing of a microcomputer by giving the microcomputer interrupting pulses, synchronizing with an armature chopper circuit while synchronizing a field chopper with an armature chopper. CONSTITUTION:A microcomputer 1 inputs the signals of the conditions of a command generator and armature currents, field currents, etc., computes motor current command value which must be flowed to a motor 132 according to controlling characteristics previously memorized to a memory and gives a flowing-rate control circuit 15 of an armature chopper and a field chopper a chopper period and a rate of flowing. The flowing-rate circuit 15 is synchronized by an armature chopper circuit and a field chopper control circuit, and outputs actuating signals. The circuit 15 is synchronized with the armature chopper circuit, gives the microcomputer 1 interrupting pulses and makes the microcomputer 1 compute a chopper period and the rate of flowing. |
