C.11. Summary of Circuit Equations
 | Base current equation for common-emitter amplifier. |
 | Collector current equation for common-emitter amplifier. |
 | Collector power-supply voltage solution common-emitter amplifier with single power supply. |
 | Base-to-collector gain. Neglect internal output resistance of driver transistor. |
 | Overall gain from function generator (signal source). |
 | Overall gain with very large source resistor, Rs, as in amplifier gain experiments. Rs >> rπ, RB >> rπ. |
 | Base-to-collector gain expression that includes the output resistance of the transistor. |
 | Base-to-collector large-signal “gain” that includes nonlinearity of IC, VBE relationship. Linear relation applies when Ic/IC ratio is small enough for ln(1 + Ic/IC) ≈ Ic/IC. |
 | General solution for base-to-collector gain for npn – pnp amplifier with emitter resistor, REp. |
 | Output resistance at collector with emitter resistor (general). |
 | Base-to-collector gain of npn – pnp amplifier, REp = 0. |
 | Approximate base-to-collector gain of npn – pnp amplifier with emitter resistor REp (and RBp = 0). |
 | Frequency-dependent output resistance at the collector of pnp with REp |
 | Characteristic frequencies of Rop(f) function. |
 | Frequency-dependent amplifier gain of npn – pnp amplifier with emitter resistor and base-bypass capacitor. |
 | Characteristic frequency of av(f) function. |
 | Maximum output resistance at the collector of the pnp with emitter resistor. |
 | Design equation for selecting Cb for npn – pnp measurement circuit. |
 | Input resistance at base of common-emitter stage with emitter resistor. |
 | Gain of the emitter-follower stage. |
 | Alternative form of the gain of the emitter-follower stage. |
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