Positive Feedback in Electronic Circuits


https://www.electronics-lab.com/article/the-positive-feedback-in-electronics/

Introduction While negative feedback controls and corrects the behavior of a system, positive feedback encourages and strengthens the behavior of the system. For this reason, it is also known as regenerative feedback. Positive feedback generally occurs when the fed-back signal is in phase with the input signal, and it causes the magnitude of the input signal […]

Logic NOT Gate


https://www.electronics-lab.com/article/logic-not-gate/

Logic NOT Gate The logic NOT gate always returns a not (opposite) of the input signal. It is the simplest and most basic form of a logic gate having only one input and one output. The logic NOT gate is also termed as Inverting Buffer or an Inverter because of its inverting response. A logic […]

OPAMP Comparators


https://www.electronics-lab.com/article/opamp-comparators/

Introduction In most of the previous operational amplifier tutorials, the circuits had a feedback loop to the inverting input. This design is the most common because it provides indeed stability and avoids undesirable saturating effects and, it is also common to call it the linear mode. On the other hand, when no feedback is applied […]

Introduction to OPAMPs and Applications


https://www.electronics-lab.com/introduction-to-opamps-and-applications/

Operational amplifiers (OPAMPs) are high performance differential amplifiers in integrated form that can be used in many different ways. A typical OPAMP has a non-inverting input, an inverting input, two dc power pins, one output pin and a few other fine-tuning pins. On the following image you can see a typical diagram of an operational […]