Explore Common Op-Amp (Operational Amplifier) Circuits, Configurations and Schematics. Plus, Find Helpful Resources and Examples. Visit To Learn More.

A simplified schematic of this commonemitter amplifier (Fig. 3a) lets us derive a small-signal model (Fig. 3b) for analysis. In this schematic, I_bias is Q3’s collector current (IC).

Figure 1 The addition of a simple diode in the emitter circuit yields the symmetric waveform in Figure 4. Figure 2 This amplifier circuit produces the distorted waveform in Figure 3. Diode D 1 ...

The direction of a single photon emitted from a quantum emitter, and its coupling to a photon waveguide, can be controlled by the helicity of the optical transition.