Variable capacitance negative feedback sawtooth circuit

1206 red anti-stick

Filter 18.432M

Negative feedback is a term in classical cybernetics. When the system is subject to external and internal interference, the system can control the interference. Either eliminate interference or control the interference within the range that the system can withstand. Typical examples are temperature controllers (such as air conditioning equipment) and human body thermostat control mechanisms.
It can be said that all stable systems have a negative feedback mechanism, because the interference is ubiquitous, and the system without the negative feedback mechanism can not resist the interference, and the system cannot be stabilized.