| 摘要 |
<p>A power control system and method controls power supplied from a power source (14) to a resistive load (18), such as a LED illumination array, to prevent the load from exceeding a high temperature limit. The power control system and method generates a pulse train that represents heating in the load and uses digital logic to model the load temperature and calculate a temperature out value. When the temperature out value increases to reach a high temperature limit value, the power source is disconnected from the load.</p> |
