| 摘要 |
<p>Apparatus for controlling the cycles of AC power supplied to a variable thermal load in response to analog signals representing the temperature of the load comprising means for quantizing the analog signals into digital signals and controlling the proportion of integral cycles of AC current blocked to those supplied to said load, while providing a uniform spacing in time of the integral full cycles supplied, in accordance with said digital signals. Also means are provided for modifying said digital signals in response to a predetermined average current overload.</p> |
