What is Positive Feedback Amplifier? Block Diagram, Gain Formula & Advantages
Figure 1: Positive Feedback Amplifier. When the feedback signal (Xf) is in phase with the source signal (Xs), then such […]
Figure 1: Positive Feedback Amplifier. When the feedback signal (Xf) is in phase with the source signal (Xs), then such […]
(a) Circuit Diagram (b) Phasor Diagram Figure 1: Parallel Resonance Circuit. In a parallel resonant circuit, the inductor L and
Single Tuned Amplifier circuits employ a single resonant circuit in the collector of the amplifier. The signal input is usually
Schmitt trigger uses positive feedback in its circuit. Hence it is also called as regenerative comparator. Figure (1) shows an
Zero Crossing Detector (ZCD) is a basic comparator circuit, whose reference voltage level is set at zero. It detects the
Figure (1): Differential Amplifier. Differential (or Difference) amplifier or a subtractor is defined as a circuit, which amplifies the difference
A voltage to current converter is a voltage-controlled current source. An ideal voltage controlled current source has two characteristics.
The process of modulation in which the frequency of the carrier signal is changed according to the instantaneous magnitude of
A radio receiver is a device that receives the radio waves propagated by a desired radio transmitter, recovers modulating signals
Superheterodyne receivers have been developed to overcome the shortcomings of straight radio receivers. All modern radio receivers operate on superheterodyne