* (typically the drive fan)
* - the main control (first control) gets the target value scaled with
* the first pair of factors, and is then modified as below
- * - the value of the target of the CPU Fan control loop is retreived,
+ * - the value of the target of the CPU Fan control loop is retrieved,
* scaled with the second pair of factors, and the max of that and
* the scaled target is applied to the main control.
*