| 摘要 |
A warming fabric (20) that utilizes a multiplex circuit (36) to provide heat to at least two different zones of the warming fabric (20). A controller (34 ) for the warming fabric may alternate power supplied to the separate zones during a duty cycle. For example, the controller (34) may supply power to a first zone of the warming fabric (20) for a specified time based upon the he at setting for the first zone. During this specified time period, a second zone would not be supplied power. When the on time for the first zone is finished , the controller (34) may apply power to the second zone for a specified time. If desired, separate zones may operate at different lengths of time during t he duty cycle so that the separate zones would be supplied different levels of heating.
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