What is Feedback Amplifier | Using Negative and Positive Feedabck скачать в хорошем качестве

What is Feedback Amplifier | Using Negative and Positive Feedabck

#feedbackamplifiers 👋 Welcome back to our channel! Today, we're diving into the world of feedback amplifiers to understand how they work and improve electronic circuit performance. In this circuit, we have an input signal, which could be either voltage or current, and an output signal, which can also be voltage or current. There's an amplifier with an open-loop gain (AOL), representing its gain when no feedback is applied. Now, let's introduce feedback. We're feeding a portion of the output signal back to the input using a network labeled as beta. This creates a negative feedback loop, regulated by an error amplifier or a differential amplifier, which subtracts a portion of the output from the input. The loop gain, a product of beta and AOL, determines the closed-loop gain of the amplifier. Negative feedback enhances linearity, reduces distortion, and improves bandwidth and input/output impedances. However, if the loop gain becomes negative, the circuit might oscillate, leading to instability. Maintaining proper feedback is crucial for stable amplifier operation. We also explore transistor circuits, where feedback stability is achieved by adding components like emitter degeneration resistors. Join us as we unravel more about feedback amplifiers in upcoming videos. Happy learning! #NegativeFeedback #AmplifierDesign #ElectronicsTutorial #CircuitAnalysis #BodePlot #TransistorAmplifiers #AmplifierStability #ClosedLoopAmplifiers #electronicsengineering #FeedbackAmplifiers #VoltageAmplification #SeriesSeriesFeedback #ElectronicsTutorial #AmplifierDesign #CircuitAnalysis #ErrorAmplifier #2PortNetworks #FeedbackAmplifiers #NegativeFeedback #AmplifierDesign #ElectronicsTutorial #CircuitAnalysis #BodePlot #TransistorAmplifiers #AmplifierStability #ClosedLoopAmplifiers #electronicsengineering #engineering #circuitdesign #microelectronics #engineering #tv #remotecontrol #electronicstutorial #learnelectronics #electronicsenthusiast #learnelectronics #circuitanalysis #electronicsenthusiast #microelectronics