| 摘要 |
<p>There is provided a system that includes a power feed that distributes a direct current (DC) voltage in a building. The DC voltage is in a range of a bout 300 - 600 volts DC. The system also includes a motor, and a motor drive . The motor drive receives the DC voltage via the power feed, and from the D C voltage, derives an output that drives the motor.</p> |
