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Positive feedback is used in digital electronics to force voltages away from intermediate voltages into '0' and '1' states. On the other hand, thermal runaway is a type of positive feedback that can destroy semiconductor junctions. Positive feedback in chemical reactions can increase the rate of reactions, and in some cases can lead to explosions.
Feedback: The core principle of continual process improvement is the (self) reflection of processes; Efficiency: The purpose of continual improvement process is the identification, reduction, and elimination of suboptimal processes; Evolution: The emphasis of continual improvement process is on incremental, continual steps rather than giant leaps
Tuning a control loop is the adjustment of its control parameters (proportional band/gain, integral gain/reset, derivative gain/rate) to the optimum values for the desired control response. Stability (no unbounded oscillation) is a basic requirement, but beyond that, different systems have different behavior, different applications have ...
If the signal is inverted on its way round the control loop, the system is said to have negative feedback; [43] otherwise, the feedback is said to be positive. Negative feedback is often deliberately introduced to increase the stability and accuracy of a system by correcting or reducing the influence of unwanted changes. This scheme can fail if ...
In control theory, a closed-loop transfer function is a mathematical function describing the net result of the effects of a feedback control loop on the input signal to the plant under control. Overview
Controllability is an important property of a control system and plays a crucial role in many control problems, such as stabilization of unstable systems by feedback, or optimal control. Controllability and observability are dual aspects of the same problem.
Control systems that include some sensing of the results they are trying to achieve are making use of feedback and can adapt to varying circumstances to some extent. Open-loop control systems do not make use of feedback, and run only in pre-arranged ways. Closed-loop controllers have the following advantages over open-loop controllers:
Business performance management (BPM) (also known as corporate performance management (CPM) [2] enterprise performance management (EPM), [3] [4] organizational performance management, or performance management) is a management approach which encompasses a set of processes and analytical tools to ensure that an organization's activities and output are aligned with its goals.