AMPLIFIER WITH A MULTIPLE-LOOP POSITIVE FEEDBACK |
| 3 | |
| 2009 |
| scientific article | 621.3.013.62 | ||
| 80-86 | resonance, resonant curve, feedback circuit, amplifier, reserve of resistibility, self-excitation, n-degree feedback, pass-band |
| Positive selective feedback in an amplifier allows a considerable reduction of the pass-band of the system resonant curve as compared to the feedback circuit resonant curve due to an increase in the feedback factor. At the same time, however, the system self-excitation stability margin goes down.
An amplifier with an n-degree multiple-loop positive feedback (n = 2, 3 …) has been proposed and studied. The multiple-loop positive feedback is an effective tool to infinitely reduce the system resonant curve passband while retaining the same system stability to self-excitation.
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