Two Stage CE Amplifier using Series Voltage Negative Feedback: Negative Feedback Amplifier Circuit - A two-stage, capacitor-coupled BJT amplifier is shown in Fig. 13-10. This is the same Two Stage…
Voltage Series Negative Feedback Amplifier: In a negative feedback amplifier, a small portion of the output voltage is fed back to the input. When the feedback voltage is applied in…
Amplifier Testing: Preparation - Transistor Amplifier Testing and other circuits should be tested in a methodical fashion; otherwise the results obtained may be useless. The circuit should first be carefully…
Capacitor Coupled Common Base Amplifier: A practical Capacitor Coupled Common Base Amplifier (using a plus/minus supply) is shown in Fig. 12-39. [Note the polarity of the input coupling capacitor (C1).]…
BIFET Amplifier: BJT-FET Considerations : Two-stage BJT circuits usually have relatively low input impedances. To increase Zi, a field effect transistor may be used as the first stage. Circuits which…
DC Feedback Pair with Two Amplification Stages: The DC Feedback Pair with Two Amplification Stages circuit shown in Fig. 12-25(a). The base of transistor Q2 is directly connected to the…
Two Stage Direct Coupled Common Emitter Amplifier: Figure 12-23 shows Two Stage Direct Coupled Common Emitter Amplifier. This time the second stage is a common collector circuit, or emitter follower.…
Direct Coupled Circuits: For economy, the number of components used in any circuit should be kept to a minimum. The use of direct coupling between stages is one way of…