Welcome to electrical and electronics engineering discussion website, Please login or register to continue.

5 views
by
Differentiate between positive and negative feedback.

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
Are you a robot ? (Y = Yes / N = No)
To avoid this verification in future, please log in or register.

1 Answer

0 votes
by

PARAMETER
POSITIVE FEEDBACK
NEGATIVE FEEDBACK
Overall phase shift
0° or 360°
180°
Feedback and input signal
Are in phase
Are out of phase
Input signal
Increases due to feedback
Decreases due to feedback
Output signal
Increases due to feedback
Decreases due to feedback
Gain
Increases due to feedback
Decreases due to feedback
Stability
Becomes poor as feedback increases
Becomes better as feedback increases
Application
Oscillators, Schmitt trigger
Amplifier, regulated power supply, bootstrapping
Noise
Increases with feedback
Decreases with feedback
Bandwidth
Decreases
Increases
Input impedance
Decreases
Increases
Output impedance
Increases
Decreases

Welcome to Q&A site for electrical and electronics engineering discussion for diploma, B.E./B.Tech, M.E./M.Tech, & PhD study.
If you have a new question please ask in English.
If you want to help this community answer these questions.

Categories

Most popular tags

power motor dc circuit voltage transformer current used system phase resistance factor load synchronous energy ac induction generator electric series frequency capacitor use speed between electrical meter line type mosfet control transmission difference magnetic plant high single instrument bjt source advantages function diode machine unit winding torque field parallel amplifier define supply thyristor motors arduino shunt maximum relay armature problem electricity time and value on transformers types coil diagram state flow ratio material three starting direction theorem method emf formula operating efficiency digital wave microprocessor test instruments loss measure operation connected low applications effect single-phase working losses different network law wattmeter inductance temperature measuring constant signal controlled breaker device full compare flux drive wire resistivity logic rc materials machines angle force switch disadvantages converter transistor gain protection scr core measurement number free bridge principle generators reactance circuits negative friction open pole conductor conservation steam iron loop resistors hysteresis short computer using lines secondary station battery rectifier inverter linear induced relays nuclear regulation design analog work rotor electronics gate forces diesel damping rlc connection factors capacitance capacitors minimum insulation basic moving running self systems air fault range direct main stability quality starter igbt eddy ideal ammeter rl 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors rotation characteristics feedback impedance measured electronic inductive start alternator off back curve over solar average three-phase tariff locomotive peak bias zener commutator surge rating universal potentiometer density permanent mechanical copper transducer capacity electrons memory adc excitation transfer explain fuse pure harmonics application of inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate distribution methods delta star oscillator reluctance semiconductor simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units neutral rated engineering conductors coefficient filter controller usually reverse
...