REDUNDANT EMITTER ELECTRODES IN AN ION WIND FAN

摘要

Emitter electrodes of ion wind fans can operate at high voltages in ionized environments. This can lead to degradation of the emitter electrodes over time. In one embodiment, the present invention provides an ion wind fan having a primary emitter electrode, and a redundant emitter electrode. The primary emitter electrode and the redundant emitter electrode are never simultaneously operational.