What type of feedback mechanism does on-off control provide?

On-off control operates using a binary feedback mechanism, which means the control system only has two states: fully on or fully off. This type of control is most commonly implemented in systems such as thermostat-controlled heating systems, where the heating is activated when the temperature drops below a set point and turned off when the desired temperature is reached. The binary nature of this feedback mechanism allows for simple and straightforward control but does not allow for any adjustments in the output level between these two states.

The significant aspect of on-off control is its application in scenarios where maintaining a setpoint is crucial, even if it introduces cycling, as the system quickly responds to deviations from the desired level. This method is effective for simpler processes or applications that do not require fine-tuned control, exemplifying why it fits the binary feedback category.