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FAN CONTROL SYSTEM AND METHOD

  • US 20130049662A1
  • Filed: 06/21/2012
  • Published: 02/28/2013
  • Est. Priority Date: 08/24/2011
  • Status: Abandoned Application
First Claim
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1. A fan control method, comprising:

  • controlling a level of power output of a fan module by a plurality of switches;

    switching on one of the plurality of switches by sending a control signal from a programmable logical controller (PLC);

    detecting an ambient temperature of the fan module and detecting an air pressure difference between a cold channel and a hot channel, wherein the fan module is communicated with the cold channel, and the cold channel is configured to input cool airflows to a heat element, and the hot channel is configured to output hot airflows from the heat element;

    if an air pressure difference between the hot channel and the cold channel is smaller than a predefined value, switching the plurality of switches by the PLC to provide a higher power output to the fan module.

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