| 摘要 |
<p>PURPOSE:To reduce the size and weight of a power supply by providinf secondary windings and rectifying bridges used commonly energize a main motor and auxiliary machines. CONSTITUTION:A main transformer 3 is provided with three secondary windings 3b-3d which are, respectively, connected to hybrid rectifying bridges 5, 6, and a diode rectifying bridge 7. The hybrid rectifying bridge 5 is cascaded with the diode rectifying bridge 7 to energize an inverter 45 for driving a main motor. The hybrid rectifying bridge 6 is cascaded with the diode rectifying bridge 7 to energize an inverter 44 for driving the main motor. The diode rectifying bridge 7 energizes an inverter 46 for driving auxiliary machines. As a result, no special secondary windings or rectifying bridges are needed for the auxiliary machines.</p> |
