No, that's not quite correct. Positive feedback can either increase or decrease the variable under control. As an example, consider an inverted pendulum. A smal

No, that's not quite correct. Positive feedback can either increase or decrease the variable under control. As an example, consider an inverted pendulum. A small swing to the side of upright causes the weight of the pendulum to drag it further to that side of upright. This occurs in both directions of the stable point and is always positive feedback, regardless of the direction.