| 摘要 |
<p>Provided is a device to drive a cooling fan in a neutral section. The device to drive a cooling fan in a neutral section includes: a damping resistance chopper circuit unit which consumes regenerative braking current generated at damping in the neutral section where a line voltage is not supplied through a damping resistance; and a cooling fan driving unit which drives a cooling fan using the voltage applied to the damping resistance by the regenerative braking current. By doing so, it is possible to prevent damage to the damping resistance and at the same time maintain stable operation of the entire driving module.</p> |
